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This is the 4.19.100 stable release

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Merge 4.19.100 into android-4.19

Changes in 4.19.100
	can, slip: Protect tty->disc_data in write_wakeup and close with RCU
	firestream: fix memory leaks
	gtp: make sure only SOCK_DGRAM UDP sockets are accepted
	ipv6: sr: remove SKB_GSO_IPXIP6 on End.D* actions
	net: bcmgenet: Use netif_tx_napi_add() for TX NAPI
	net: cxgb3_main: Add CAP_NET_ADMIN check to CHELSIO_GET_MEM
	net: ip6_gre: fix moving ip6gre between namespaces
	net, ip6_tunnel: fix namespaces move
	net, ip_tunnel: fix namespaces move
	net: rtnetlink: validate IFLA_MTU attribute in rtnl_create_link()
	net_sched: fix datalen for ematch
	net-sysfs: Fix reference count leak in rx|netdev_queue_add_kobject
	net-sysfs: fix netdev_queue_add_kobject() breakage
	net-sysfs: Call dev_hold always in netdev_queue_add_kobject
	net-sysfs: Call dev_hold always in rx_queue_add_kobject
	net-sysfs: Fix reference count leak
	net: usb: lan78xx: Add .ndo_features_check
	Revert "udp: do rmem bulk free even if the rx sk queue is empty"
	tcp_bbr: improve arithmetic division in bbr_update_bw()
	tcp: do not leave dangling pointers in tp->highest_sack
	tun: add mutex_unlock() call and napi.skb clearing in tun_get_user()
	afs: Fix characters allowed into cell names
	hwmon: (adt7475) Make volt2reg return same reg as reg2volt input
	hwmon: (core) Do not use device managed functions for memory allocations
	PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken
	tracing: trigger: Replace unneeded RCU-list traversals
	Input: keyspan-remote - fix control-message timeouts
	Revert "Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers"
	ARM: 8950/1: ftrace/recordmcount: filter relocation types
	mmc: tegra: fix SDR50 tuning override
	mmc: sdhci: fix minimum clock rate for v3 controller
	Documentation: Document arm64 kpti control
	Input: pm8xxx-vib - fix handling of separate enable register
	Input: sur40 - fix interface sanity checks
	Input: gtco - fix endpoint sanity check
	Input: aiptek - fix endpoint sanity check
	Input: pegasus_notetaker - fix endpoint sanity check
	Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register
	netfilter: nft_osf: add missing check for DREG attribute
	hwmon: (nct7802) Fix voltage limits to wrong registers
	scsi: RDMA/isert: Fix a recently introduced regression related to logout
	tracing: xen: Ordered comparison of function pointers
	do_last(): fetch directory ->i_mode and ->i_uid before it's too late
	net/sonic: Add mutual exclusion for accessing shared state
	net/sonic: Clear interrupt flags immediately
	net/sonic: Use MMIO accessors
	net/sonic: Fix interface error stats collection
	net/sonic: Fix receive buffer handling
	net/sonic: Avoid needless receive descriptor EOL flag updates
	net/sonic: Improve receive descriptor status flag check
	net/sonic: Fix receive buffer replenishment
	net/sonic: Quiesce SONIC before re-initializing descriptor memory
	net/sonic: Fix command register usage
	net/sonic: Fix CAM initialization
	net/sonic: Prevent tx watchdog timeout
	tracing: Use hist trigger's var_ref array to destroy var_refs
	tracing: Remove open-coding of hist trigger var_ref management
	tracing: Fix histogram code when expression has same var as value
	sd: Fix REQ_OP_ZONE_REPORT completion handling
	crypto: geode-aes - switch to skcipher for cbc(aes) fallback
	coresight: etb10: Do not call smp_processor_id from preemptible
	coresight: tmc-etf: Do not call smp_processor_id from preemptible
	libertas: Fix two buffer overflows at parsing bss descriptor
	media: v4l2-ioctl.c: zero reserved fields for S/TRY_FMT
	scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func
	netfilter: ipset: use bitmap infrastructure completely
	netfilter: nf_tables: add __nft_chain_type_get()
	net/x25: fix nonblocking connect
	mm/memory_hotplug: make remove_memory() take the device_hotplug_lock
	mm, sparse: drop pgdat_resize_lock in sparse_add/remove_one_section()
	mm, sparse: pass nid instead of pgdat to sparse_add_one_section()
	drivers/base/memory.c: remove an unnecessary check on NR_MEM_SECTIONS
	mm, memory_hotplug: add nid parameter to arch_remove_memory
	mm/memory_hotplug: release memory resource after arch_remove_memory()
	drivers/base/memory.c: clean up relics in function parameters
	mm, memory_hotplug: update a comment in unregister_memory()
	mm/memory_hotplug: make unregister_memory_section() never fail
	mm/memory_hotplug: make __remove_section() never fail
	powerpc/mm: Fix section mismatch warning
	mm/memory_hotplug: make __remove_pages() and arch_remove_memory() never fail
	s390x/mm: implement arch_remove_memory()
	mm/memory_hotplug: allow arch_remove_memory() without CONFIG_MEMORY_HOTREMOVE
	drivers/base/memory: pass a block_id to init_memory_block()
	mm/memory_hotplug: create memory block devices after arch_add_memory()
	mm/memory_hotplug: remove memory block devices before arch_remove_memory()
	mm/memory_hotplug: make unregister_memory_block_under_nodes() never fail
	mm/memory_hotplug: remove "zone" parameter from sparse_remove_one_section
	mm/hotplug: kill is_dev_zone() usage in __remove_pages()
	drivers/base/node.c: simplify unregister_memory_block_under_nodes()
	mm/memunmap: don't access uninitialized memmap in memunmap_pages()
	mm/memory_hotplug: fix try_offline_node()
	mm/memory_hotplug: shrink zones when offlining memory
	Linux 4.19.100

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1664d6d4de9358bff5632c291a26e1401ec7b5f1
This commit is contained in:
Greg Kroah-Hartman 2020-01-29 17:10:45 +01:00
commit 654c66e990
83 changed files with 1106 additions and 726 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
Documentation/admin-guide/kernel-parameters.txt
View file

@ -1955,6 +1955,12 @@
Built with CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y,
the default is off.
kpti= [ARM64] Control page table isolation of user
and kernel address spaces.
Default: enabled on cores which need mitigation.
0: force disabled
1: force enabled
kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs.
Default is 0 (don't ignore, but inject #GP)

2
Makefile
View file

@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
SUBLEVEL = 99
SUBLEVEL = 100
EXTRAVERSION =
NAME = "People's Front"

15
arch/ia64/mm/init.c
View file

@ -661,21 +661,12 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
return ret;
}
#ifdef CONFIG_MEMORY_HOTREMOVE
int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
void arch_remove_memory(int nid, u64 start, u64 size,
struct vmem_altmap *altmap)
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
struct zone *zone;
int ret;
zone = page_zone(pfn_to_page(start_pfn));
ret = __remove_pages(zone, start_pfn, nr_pages, altmap);
if (ret)
pr_warn("%s: Problem encountered in __remove_pages() as"
" ret=%d\n", __func__, ret);
return ret;
__remove_pages(start_pfn, nr_pages, altmap);
}
#endif
#endif

25
arch/powerpc/mm/mem.c
View file

@ -118,8 +118,8 @@ int __weak remove_section_mapping(unsigned long start, unsigned long end)
return -ENODEV;
}
int __meminit arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
bool want_memblock)
int __ref arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
bool want_memblock)
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
@ -139,30 +139,20 @@ int __meminit arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *
return __add_pages(nid, start_pfn, nr_pages, altmap, want_memblock);
}
#ifdef CONFIG_MEMORY_HOTREMOVE
int __meminit arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
void __ref arch_remove_memory(int nid, u64 start, u64 size,
struct vmem_altmap *altmap)
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
struct page *page;
int ret;
/*
* If we have an altmap then we need to skip over any reserved PFNs
* when querying the zone.
*/
page = pfn_to_page(start_pfn);
if (altmap)
page += vmem_altmap_offset(altmap);
ret = __remove_pages(page_zone(page), start_pfn, nr_pages, altmap);
if (ret)
return ret;
__remove_pages(start_pfn, nr_pages, altmap);
/* Remove htab bolted mappings for this section of memory */
start = (unsigned long)__va(start);
flush_inval_dcache_range(start, start + size);
ret = remove_section_mapping(start, start + size);
WARN_ON_ONCE(ret);
/* Ensure all vmalloc mappings are flushed in case they also
* hit that section of memory
@ -170,11 +160,8 @@ int __meminit arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap
vm_unmap_aliases();
resize_hpt_for_hotplug(memblock_phys_mem_size());
return ret;
}
#endif
#endif /* CONFIG_MEMORY_HOTPLUG */
/*
* walk_memory_resource() needs to make sure there is no holes in a given

2
arch/powerpc/platforms/powernv/memtrace.c
View file

@ -122,7 +122,7 @@ static u64 memtrace_alloc_node(u32 nid, u64 size)
*/
end_pfn = base_pfn + nr_pages;
for (pfn = base_pfn; pfn < end_pfn; pfn += bytes>> PAGE_SHIFT) {
remove_memory(nid, pfn << PAGE_SHIFT, bytes);
__remove_memory(nid, pfn << PAGE_SHIFT, bytes);
}
unlock_device_hotplug();
return base_pfn << PAGE_SHIFT;

6
arch/powerpc/platforms/pseries/hotplug-memory.c
View file

@ -301,7 +301,7 @@ static int pseries_remove_memblock(unsigned long base, unsigned int memblock_siz
nid = memory_add_physaddr_to_nid(base);
for (i = 0; i < sections_per_block; i++) {
remove_memory(nid, base, MIN_MEMORY_BLOCK_SIZE);
__remove_memory(nid, base, MIN_MEMORY_BLOCK_SIZE);
base += MIN_MEMORY_BLOCK_SIZE;
}
@ -393,7 +393,7 @@ static int dlpar_remove_lmb(struct drmem_lmb *lmb)
block_sz = pseries_memory_block_size();
nid = memory_add_physaddr_to_nid(lmb->base_addr);
remove_memory(nid, lmb->base_addr, block_sz);
__remove_memory(nid, lmb->base_addr, block_sz);
/* Update memory regions for memory remove */
memblock_remove(lmb->base_addr, block_sz);
@ -680,7 +680,7 @@ static int dlpar_add_lmb(struct drmem_lmb *lmb)
rc = dlpar_online_lmb(lmb);
if (rc) {
remove_memory(nid, lmb->base_addr, block_sz);
__remove_memory(nid, lmb->base_addr, block_sz);
invalidate_lmb_associativity_index(lmb);
} else {
lmb->flags |= DRCONF_MEM_ASSIGNED;

16
arch/s390/mm/init.c
View file

@ -239,15 +239,13 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
return rc;
}
#ifdef CONFIG_MEMORY_HOTREMOVE
int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
void arch_remove_memory(int nid, u64 start, u64 size,
struct vmem_altmap *altmap)
{
/*
* There is no hardware or firmware interface which could trigger a
* hot memory remove on s390. So there is nothing that needs to be
* implemented.
*/
return -EBUSY;
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
__remove_pages(start_pfn, nr_pages, altmap);
vmem_remove_mapping(start, size);
}
#endif
#endif /* CONFIG_MEMORY_HOTPLUG */

15
arch/sh/mm/init.c
View file

@ -443,21 +443,12 @@ int memory_add_physaddr_to_nid(u64 addr)
EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
#endif
#ifdef CONFIG_MEMORY_HOTREMOVE
int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
void arch_remove_memory(int nid, u64 start, u64 size,
struct vmem_altmap *altmap)
{
unsigned long start_pfn = PFN_DOWN(start);
unsigned long nr_pages = size >> PAGE_SHIFT;
struct zone *zone;
int ret;
zone = page_zone(pfn_to_page(start_pfn));
ret = __remove_pages(zone, start_pfn, nr_pages, altmap);
if (unlikely(ret))
pr_warn("%s: Failed, __remove_pages() == %d\n", __func__,
ret);
return ret;
__remove_pages(start_pfn, nr_pages, altmap);
}
#endif
#endif /* CONFIG_MEMORY_HOTPLUG */

9
arch/x86/mm/init_32.c
View file

@ -860,18 +860,15 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
return __add_pages(nid, start_pfn, nr_pages, altmap, want_memblock);
}
#ifdef CONFIG_MEMORY_HOTREMOVE
int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
void arch_remove_memory(int nid, u64 start, u64 size,
struct vmem_altmap *altmap)
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
struct zone *zone;
zone = page_zone(pfn_to_page(start_pfn));
return __remove_pages(zone, start_pfn, nr_pages, altmap);
__remove_pages(start_pfn, nr_pages, altmap);
}
#endif
#endif
int kernel_set_to_readonly __read_mostly;

17
arch/x86/mm/init_64.c
View file

@ -1132,7 +1132,6 @@ void __ref vmemmap_free(unsigned long start, unsigned long end,
remove_pagetable(start, end, false, altmap);
}
#ifdef CONFIG_MEMORY_HOTREMOVE
static void __meminit
kernel_physical_mapping_remove(unsigned long start, unsigned long end)
{
@ -1142,25 +1141,15 @@ kernel_physical_mapping_remove(unsigned long start, unsigned long end)
remove_pagetable(start, end, true, NULL);
}
int __ref arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
void __ref arch_remove_memory(int nid, u64 start, u64 size,
struct vmem_altmap *altmap)
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
struct page *page = pfn_to_page(start_pfn);
struct zone *zone;
int ret;
/* With altmap the first mapped page is offset from @start */
if (altmap)
page += vmem_altmap_offset(altmap);
zone = page_zone(page);
ret = __remove_pages(zone, start_pfn, nr_pages, altmap);
WARN_ON_ONCE(ret);
__remove_pages(start_pfn, nr_pages, altmap);
kernel_physical_mapping_remove(start, start + size);
return ret;
}
#endif
#endif /* CONFIG_MEMORY_HOTPLUG */
static struct kcore_list kcore_vsyscall;

2
drivers/acpi/acpi_memhotplug.c
View file

@ -282,7 +282,7 @@ static void acpi_memory_remove_memory(struct acpi_memory_device *mem_device)
nid = memory_add_physaddr_to_nid(info->start_addr);
acpi_unbind_memory_blocks(info);
remove_memory(nid, info->start_addr, info->length);
__remove_memory(nid, info->start_addr, info->length);
list_del(&info->list);
kfree(info);
}

3
drivers/atm/firestream.c
View file

@ -927,6 +927,7 @@ static int fs_open(struct atm_vcc *atm_vcc)
}
if (!to) {
printk ("No more free channels for FS50..\n");
kfree(vcc);
return -EBUSY;
}
vcc->channo = dev->channo;
@ -937,6 +938,7 @@ static int fs_open(struct atm_vcc *atm_vcc)
if (((DO_DIRECTION(rxtp) && dev->atm_vccs[vcc->channo])) ||
( DO_DIRECTION(txtp) && test_bit (vcc->channo, dev->tx_inuse))) {
printk ("Channel is in use for FS155.\n");
kfree(vcc);
return -EBUSY;
}
}
@ -950,6 +952,7 @@ static int fs_open(struct atm_vcc *atm_vcc)
tc, sizeof (struct fs_transmit_config));
if (!tc) {
fs_dprintk (FS_DEBUG_OPEN, "fs: can't alloc transmit_config.\n");
kfree(vcc);
return -ENOMEM;
}

217
drivers/base/memory.c
View file

@ -39,6 +39,11 @@ static inline int base_memory_block_id(int section_nr)
return section_nr / sections_per_block;
}
static inline int pfn_to_block_id(unsigned long pfn)
{
return base_memory_block_id(pfn_to_section_nr(pfn));
}
static int memory_subsys_online(struct device *dev);
static int memory_subsys_offline(struct device *dev);
@ -230,13 +235,14 @@ static bool pages_correctly_probed(unsigned long start_pfn)
* OK to have direct references to sparsemem variables in here.
*/
static int
memory_block_action(unsigned long phys_index, unsigned long action, int online_type)
memory_block_action(unsigned long start_section_nr, unsigned long action,
int online_type)
{
unsigned long start_pfn;
unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block;
int ret;
start_pfn = section_nr_to_pfn(phys_index);
start_pfn = section_nr_to_pfn(start_section_nr);
switch (action) {
case MEM_ONLINE:
@ -250,7 +256,7 @@ memory_block_action(unsigned long phys_index, unsigned long action, int online_t
break;
default:
WARN(1, KERN_WARNING "%s(%ld, %ld) unknown action: "
"%ld\n", __func__, phys_index, action, action);
"%ld\n", __func__, start_section_nr, action, action);
ret = -EINVAL;
}
@ -590,10 +596,9 @@ int __weak arch_get_memory_phys_device(unsigned long start_pfn)
* A reference for the returned object is held and the reference for the
* hinted object is released.
*/
struct memory_block *find_memory_block_hinted(struct mem_section *section,
struct memory_block *hint)
static struct memory_block *find_memory_block_by_id(int block_id,
struct memory_block *hint)
{
int block_id = base_memory_block_id(__section_nr(section));
struct device *hintdev = hint ? &hint->dev : NULL;
struct device *dev;
@ -605,6 +610,14 @@ struct memory_block *find_memory_block_hinted(struct mem_section *section,
return to_memory_block(dev);
}
struct memory_block *find_memory_block_hinted(struct mem_section *section,
struct memory_block *hint)
{
int block_id = base_memory_block_id(__section_nr(section));
return find_memory_block_by_id(block_id, hint);
}
/*
* For now, we have a linear search to go find the appropriate
* memory_block corresponding to a particular phys_index. If
@ -659,25 +672,28 @@ int register_memory(struct memory_block *memory)
return ret;
}
static int init_memory_block(struct memory_block **memory,
struct mem_section *section, unsigned long state)
static int init_memory_block(struct memory_block **memory, int block_id,
unsigned long state)
{
struct memory_block *mem;
unsigned long start_pfn;
int scn_nr;
int ret = 0;
mem = find_memory_block_by_id(block_id, NULL);
if (mem) {
put_device(&mem->dev);
return -EEXIST;
}
mem = kzalloc(sizeof(*mem), GFP_KERNEL);
if (!mem)
return -ENOMEM;
scn_nr = __section_nr(section);
mem->start_section_nr =
base_memory_block_id(scn_nr) * sections_per_block;
mem->start_section_nr = block_id * sections_per_block;
mem->end_section_nr = mem->start_section_nr + sections_per_block - 1;
mem->state = state;
start_pfn = section_nr_to_pfn(mem->start_section_nr);
mem->phys_device = arch_get_memory_phys_device(start_pfn);
mem->nid = NUMA_NO_NODE;
ret = register_memory(mem);
@ -688,101 +704,98 @@ static int init_memory_block(struct memory_block **memory,
static int add_memory_block(int base_section_nr)
{
struct memory_block *mem;
int i, ret, section_count = 0, section_nr;
int i, ret, section_count = 0;
for (i = base_section_nr;
(i < base_section_nr + sections_per_block) && i < NR_MEM_SECTIONS;
i++) {
if (!present_section_nr(i))
continue;
if (section_count == 0)
section_nr = i;
section_count++;
}
i < base_section_nr + sections_per_block;
i++)
if (present_section_nr(i))
section_count++;
if (section_count == 0)
return 0;
ret = init_memory_block(&mem, __nr_to_section(section_nr), MEM_ONLINE);
ret = init_memory_block(&mem, base_memory_block_id(base_section_nr),
MEM_ONLINE);
if (ret)
return ret;
mem->section_count = section_count;
return 0;
}
/*
* need an interface for the VM to add new memory regions,
* but without onlining it.
*/
int hotplug_memory_register(int nid, struct mem_section *section)
static void unregister_memory(struct memory_block *memory)
{
int ret = 0;
struct memory_block *mem;
if (WARN_ON_ONCE(memory->dev.bus != &memory_subsys))
return;
mutex_lock(&mem_sysfs_mutex);
mem = find_memory_block(section);
if (mem) {
mem->section_count++;
put_device(&mem->dev);
} else {
ret = init_memory_block(&mem, section, MEM_OFFLINE);
if (ret)
goto out;
mem->section_count++;
}
out:
mutex_unlock(&mem_sysfs_mutex);
return ret;
}
#ifdef CONFIG_MEMORY_HOTREMOVE
static void
unregister_memory(struct memory_block *memory)
{
BUG_ON(memory->dev.bus != &memory_subsys);
/* drop the ref. we got in remove_memory_block() */
/* drop the ref. we got via find_memory_block() */
put_device(&memory->dev);
device_unregister(&memory->dev);
}
static int remove_memory_section(unsigned long node_id,
struct mem_section *section, int phys_device)
/*
* Create memory block devices for the given memory area. Start and size
* have to be aligned to memory block granularity. Memory block devices
* will be initialized as offline.
*/
int create_memory_block_devices(unsigned long start, unsigned long size)
{
const int start_block_id = pfn_to_block_id(PFN_DOWN(start));
int end_block_id = pfn_to_block_id(PFN_DOWN(start + size));
struct memory_block *mem;
unsigned long block_id;
int ret = 0;
mutex_lock(&mem_sysfs_mutex);
/*
* Some users of the memory hotplug do not want/need memblock to
* track all sections. Skip over those.
*/
mem = find_memory_block(section);
if (!mem)
goto out_unlock;
unregister_mem_sect_under_nodes(mem, __section_nr(section));
mem->section_count--;
if (mem->section_count == 0)
unregister_memory(mem);
else
put_device(&mem->dev);
out_unlock:
mutex_unlock(&mem_sysfs_mutex);
return 0;
}
int unregister_memory_section(struct mem_section *section)
{
if (!present_section(section))
if (WARN_ON_ONCE(!IS_ALIGNED(start, memory_block_size_bytes()) ||
!IS_ALIGNED(size, memory_block_size_bytes())))
return -EINVAL;
return remove_memory_section(0, section, 0);
mutex_lock(&mem_sysfs_mutex);
for (block_id = start_block_id; block_id != end_block_id; block_id++) {
ret = init_memory_block(&mem, block_id, MEM_OFFLINE);
if (ret)
break;
mem->section_count = sections_per_block;
}
if (ret) {
end_block_id = block_id;
for (block_id = start_block_id; block_id != end_block_id;
block_id++) {
mem = find_memory_block_by_id(block_id, NULL);
mem->section_count = 0;
unregister_memory(mem);
}
}
mutex_unlock(&mem_sysfs_mutex);
return ret;
}
/*
* Remove memory block devices for the given memory area. Start and size
* have to be aligned to memory block granularity. Memory block devices
* have to be offline.
*/
void remove_memory_block_devices(unsigned long start, unsigned long size)
{
const int start_block_id = pfn_to_block_id(PFN_DOWN(start));
const int end_block_id = pfn_to_block_id(PFN_DOWN(start + size));
struct memory_block *mem;
int block_id;
if (WARN_ON_ONCE(!IS_ALIGNED(start, memory_block_size_bytes()) ||
!IS_ALIGNED(size, memory_block_size_bytes())))
return;
mutex_lock(&mem_sysfs_mutex);
for (block_id = start_block_id; block_id != end_block_id; block_id++) {
mem = find_memory_block_by_id(block_id, NULL);
if (WARN_ON_ONCE(!mem))
continue;
mem->section_count = 0;
unregister_memory_block_under_nodes(mem);
unregister_memory(mem);
}
mutex_unlock(&mem_sysfs_mutex);
}
#endif /* CONFIG_MEMORY_HOTREMOVE */
/* return true if the memory block is offlined, otherwise, return false */
bool is_memblock_offlined(struct memory_block *mem)
@ -849,3 +862,39 @@ int __init memory_dev_init(void)
printk(KERN_ERR "%s() failed: %d\n", __func__, ret);
return ret;
}
struct for_each_memory_block_cb_data {
walk_memory_blocks_func_t func;
void *arg;
};
static int for_each_memory_block_cb(struct device *dev, void *data)
{
struct memory_block *mem = to_memory_block(dev);
struct for_each_memory_block_cb_data *cb_data = data;
return cb_data->func(mem, cb_data->arg);
}
/**
* for_each_memory_block - walk through all present memory blocks
*
* @arg: argument passed to func
* @func: callback for each memory block walked
*
* This function walks through all present memory blocks, calling func on
* each memory block.
*
* In case func() returns an error, walking is aborted and the error is
* returned.
*/
int for_each_memory_block(void *arg, walk_memory_blocks_func_t func)
{
struct for_each_memory_block_cb_data cb_data = {
.func = func,
.arg = arg,
};
return bus_for_each_dev(&memory_subsys, NULL, &cb_data,
for_each_memory_block_cb);
}

52
drivers/base/node.c
View file

@ -420,8 +420,6 @@ int register_mem_sect_under_node(struct memory_block *mem_blk, void *arg)
int ret, nid = *(int *)arg;
unsigned long pfn, sect_start_pfn, sect_end_pfn;
mem_blk->nid = nid;
sect_start_pfn = section_nr_to_pfn(mem_blk->start_section_nr);
sect_end_pfn = section_nr_to_pfn(mem_blk->end_section_nr);
sect_end_pfn += PAGES_PER_SECTION - 1;
@ -450,6 +448,13 @@ int register_mem_sect_under_node(struct memory_block *mem_blk, void *arg)
if (page_nid != nid)
continue;
}
/*
* If this memory block spans multiple nodes, we only indicate
* the last processed node.
*/
mem_blk->nid = nid;
ret = sysfs_create_link_nowarn(&node_devices[nid]->dev.kobj,
&mem_blk->dev.kobj,
kobject_name(&mem_blk->dev.kobj));
@ -464,40 +469,19 @@ int register_mem_sect_under_node(struct memory_block *mem_blk, void *arg)
return 0;
}
/* unregister memory section under all nodes that it spans */
int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
unsigned long phys_index)
/*
* Unregister a memory block device under the node it spans. Memory blocks
* with multiple nodes cannot be offlined and therefore also never be removed.
*/
void unregister_memory_block_under_nodes(struct memory_block *mem_blk)
{
NODEMASK_ALLOC(nodemask_t, unlinked_nodes, GFP_KERNEL);
unsigned long pfn, sect_start_pfn, sect_end_pfn;
if (mem_blk->nid == NUMA_NO_NODE)
return;
if (!mem_blk) {
NODEMASK_FREE(unlinked_nodes);
return -EFAULT;
}
if (!unlinked_nodes)
return -ENOMEM;
nodes_clear(*unlinked_nodes);
sect_start_pfn = section_nr_to_pfn(phys_index);
sect_end_pfn = sect_start_pfn + PAGES_PER_SECTION - 1;
for (pfn = sect_start_pfn; pfn <= sect_end_pfn; pfn++) {
int nid;
nid = get_nid_for_pfn(pfn);
if (nid < 0)
continue;
if (!node_online(nid))
continue;
if (node_test_and_set(nid, *unlinked_nodes))
continue;
sysfs_remove_link(&node_devices[nid]->dev.kobj,
kobject_name(&mem_blk->dev.kobj));
sysfs_remove_link(&mem_blk->dev.kobj,
kobject_name(&node_devices[nid]->dev.kobj));
}
NODEMASK_FREE(unlinked_nodes);
return 0;
sysfs_remove_link(&node_devices[mem_blk->nid]->dev.kobj,
kobject_name(&mem_blk->dev.kobj));
sysfs_remove_link(&mem_blk->dev.kobj,
kobject_name(&node_devices[mem_blk->nid]->dev.kobj));
}
int link_mem_sections(int nid, unsigned long start_pfn, unsigned long end_pfn)

57
drivers/crypto/geode-aes.c
View file

@ -14,6 +14,7 @@
#include <linux/spinlock.h>
#include <crypto/algapi.h>
#include <crypto/aes.h>
#include <crypto/skcipher.h>
#include <linux/io.h>
#include <linux/delay.h>
@ -170,13 +171,15 @@ static int geode_setkey_blk(struct crypto_tfm *tfm, const u8 *key,
/*
* The requested key size is not supported by HW, do a fallback
*/
op->fallback.blk->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
op->fallback.blk->base.crt_flags |= (tfm->crt_flags & CRYPTO_TFM_REQ_MASK);
crypto_skcipher_clear_flags(op->fallback.blk, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(op->fallback.blk,
tfm->crt_flags & CRYPTO_TFM_REQ_MASK);
ret = crypto_blkcipher_setkey(op->fallback.blk, key, len);
ret = crypto_skcipher_setkey(op->fallback.blk, key, len);
if (ret) {
tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
tfm->crt_flags |= (op->fallback.blk->base.crt_flags & CRYPTO_TFM_RES_MASK);
tfm->crt_flags |= crypto_skcipher_get_flags(op->fallback.blk) &
CRYPTO_TFM_RES_MASK;
}
return ret;
}
@ -185,33 +188,28 @@ static int fallback_blk_dec(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
unsigned int ret;
struct crypto_blkcipher *tfm;
struct geode_aes_op *op = crypto_blkcipher_ctx(desc->tfm);
SKCIPHER_REQUEST_ON_STACK(req, op->fallback.blk);
tfm = desc->tfm;
desc->tfm = op->fallback.blk;
skcipher_request_set_tfm(req, op->fallback.blk);
skcipher_request_set_callback(req, 0, NULL, NULL);
skcipher_request_set_crypt(req, src, dst, nbytes, desc->info);
ret = crypto_blkcipher_decrypt_iv(desc, dst, src, nbytes);
desc->tfm = tfm;
return ret;
return crypto_skcipher_decrypt(req);
}
static int fallback_blk_enc(struct blkcipher_desc *desc,
struct scatterlist *dst, struct scatterlist *src,
unsigned int nbytes)
{
unsigned int ret;
struct crypto_blkcipher *tfm;
struct geode_aes_op *op = crypto_blkcipher_ctx(desc->tfm);
SKCIPHER_REQUEST_ON_STACK(req, op->fallback.blk);
tfm = desc->tfm;
desc->tfm = op->fallback.blk;
skcipher_request_set_tfm(req, op->fallback.blk);
skcipher_request_set_callback(req, 0, NULL, NULL);
skcipher_request_set_crypt(req, src, dst, nbytes, desc->info);
ret = crypto_blkcipher_encrypt_iv(desc, dst, src, nbytes);
desc->tfm = tfm;
return ret;
return crypto_skcipher_encrypt(req);
}
static void
@ -311,6 +309,9 @@ geode_cbc_decrypt(struct blkcipher_desc *desc,
struct blkcipher_walk walk;
int err, ret;
if (nbytes % AES_BLOCK_SIZE)
return -EINVAL;
if (unlikely(op->keylen != AES_KEYSIZE_128))
return fallback_blk_dec(desc, dst, src, nbytes);
@ -343,6 +344,9 @@ geode_cbc_encrypt(struct blkcipher_desc *desc,
struct blkcipher_walk walk;
int err, ret;
if (nbytes % AES_BLOCK_SIZE)
return -EINVAL;
if (unlikely(op->keylen != AES_KEYSIZE_128))
return fallback_blk_enc(desc, dst, src, nbytes);
@ -370,8 +374,9 @@ static int fallback_init_blk(struct crypto_tfm *tfm)
const char *name = crypto_tfm_alg_name(tfm);
struct geode_aes_op *op = crypto_tfm_ctx(tfm);
op->fallback.blk = crypto_alloc_blkcipher(name, 0,
CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
op->fallback.blk = crypto_alloc_skcipher(name, 0,
CRYPTO_ALG_ASYNC |
CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(op->fallback.blk)) {
printk(KERN_ERR "Error allocating fallback algo %s\n", name);
@ -385,7 +390,7 @@ static void fallback_exit_blk(struct crypto_tfm *tfm)
{
struct geode_aes_op *op = crypto_tfm_ctx(tfm);
crypto_free_blkcipher(op->fallback.blk);
crypto_free_skcipher(op->fallback.blk);
op->fallback.blk = NULL;
}
@ -424,6 +429,9 @@ geode_ecb_decrypt(struct blkcipher_desc *desc,
struct blkcipher_walk walk;
int err, ret;
if (nbytes % AES_BLOCK_SIZE)
return -EINVAL;
if (unlikely(op->keylen != AES_KEYSIZE_128))
return fallback_blk_dec(desc, dst, src, nbytes);
@ -454,6 +462,9 @@ geode_ecb_encrypt(struct blkcipher_desc *desc,
struct blkcipher_walk walk;
int err, ret;
if (nbytes % AES_BLOCK_SIZE)
return -EINVAL;
if (unlikely(op->keylen != AES_KEYSIZE_128))
return fallback_blk_enc(desc, dst, src, nbytes);

2
drivers/crypto/geode-aes.h
View file

@ -64,7 +64,7 @@ struct geode_aes_op {
u8 *iv;
union {
struct crypto_blkcipher *blk;
struct crypto_skcipher *blk;
struct crypto_cipher *cip;
} fallback;
u32 keylen;

5
drivers/hwmon/adt7475.c
View file

@ -296,9 +296,10 @@ static inline u16 volt2reg(int channel, long volt, u8 bypass_attn)
long reg;
if (bypass_attn & (1 << channel))
reg = (volt * 1024) / 2250;
reg = DIV_ROUND_CLOSEST(volt * 1024, 2250);
else
reg = (volt * r[1] * 1024) / ((r[0] + r[1]) * 2250);
reg = DIV_ROUND_CLOSEST(volt * r[1] * 1024,
(r[0] + r[1]) * 2250);
return clamp_val(reg, 0, 1023) & (0xff << 2);
}

68
drivers/hwmon/hwmon.c
View file

@ -51,6 +51,7 @@ struct hwmon_device_attribute {
#define to_hwmon_attr(d) \
container_of(d, struct hwmon_device_attribute, dev_attr)
#define to_dev_attr(a) container_of(a, struct device_attribute, attr)
/*
* Thermal zone information
@ -58,7 +59,7 @@ struct hwmon_device_attribute {
* also provides the sensor index.
*/
struct hwmon_thermal_data {
struct hwmon_device *hwdev; /* Reference to hwmon device */
struct device *dev; /* Reference to hwmon device */
int index; /* sensor index */
};
@ -95,9 +96,27 @@ static const struct attribute_group *hwmon_dev_attr_groups[] = {
NULL
};
static void hwmon_free_attrs(struct attribute **attrs)
{
int i;
for (i = 0; attrs[i]; i++) {
struct device_attribute *dattr = to_dev_attr(attrs[i]);
struct hwmon_device_attribute *hattr = to_hwmon_attr(dattr);
kfree(hattr);
}
kfree(attrs);
}
static void hwmon_dev_release(struct device *dev)
{
kfree(to_hwmon_device(dev));
struct hwmon_device *hwdev = to_hwmon_device(dev);
if (hwdev->group.attrs)
hwmon_free_attrs(hwdev->group.attrs);
kfree(hwdev->groups);
kfree(hwdev);
}
static struct class hwmon_class = {
@ -121,11 +140,11 @@ static DEFINE_IDA(hwmon_ida);
static int hwmon_thermal_get_temp(void *data, int *temp)
{
struct hwmon_thermal_data *tdata = data;
struct hwmon_device *hwdev = tdata->hwdev;
struct hwmon_device *hwdev = to_hwmon_device(tdata->dev);
int ret;
long t;
ret = hwdev->chip->ops->read(&hwdev->dev, hwmon_temp, hwmon_temp_input,
ret = hwdev->chip->ops->read(tdata->dev, hwmon_temp, hwmon_temp_input,
tdata->index, &t);
if (ret < 0)
return ret;
@ -139,8 +158,7 @@ static const struct thermal_zone_of_device_ops hwmon_thermal_ops = {
.get_temp = hwmon_thermal_get_temp,
};
static int hwmon_thermal_add_sensor(struct device *dev,
struct hwmon_device *hwdev, int index)
static int hwmon_thermal_add_sensor(struct device *dev, int index)
{
struct hwmon_thermal_data *tdata;
struct thermal_zone_device *tzd;
@ -149,10 +167,10 @@ static int hwmon_thermal_add_sensor(struct device *dev,
if (!tdata)
return -ENOMEM;
tdata->hwdev = hwdev;
tdata->dev = dev;
tdata->index = index;
tzd = devm_thermal_zone_of_sensor_register(&hwdev->dev, index, tdata,
tzd = devm_thermal_zone_of_sensor_register(dev, index, tdata,
&hwmon_thermal_ops);
/*
* If CONFIG_THERMAL_OF is disabled, this returns -ENODEV,
@ -164,8 +182,7 @@ static int hwmon_thermal_add_sensor(struct device *dev,
return 0;
}
#else
static int hwmon_thermal_add_sensor(struct device *dev,
struct hwmon_device *hwdev, int index)
static int hwmon_thermal_add_sensor(struct device *dev, int index)
{
return 0;
}
@ -242,8 +259,7 @@ static bool is_string_attr(enum hwmon_sensor_types type, u32 attr)
(type == hwmon_fan && attr == hwmon_fan_label);
}
static struct attribute *hwmon_genattr(struct device *dev,
const void *drvdata,
static struct attribute *hwmon_genattr(const void *drvdata,
enum hwmon_sensor_types type,
u32 attr,
int index,
@ -271,7 +287,7 @@ static struct attribute *hwmon_genattr(struct device *dev,
if ((mode & S_IWUGO) && !ops->write)
return ERR_PTR(-EINVAL);
hattr = devm_kzalloc(dev, sizeof(*hattr), GFP_KERNEL);
hattr = kzalloc(sizeof(*hattr), GFP_KERNEL);
if (!hattr)
return ERR_PTR(-ENOMEM);
@ -478,8 +494,7 @@ static int hwmon_num_channel_attrs(const struct hwmon_channel_info *info)
return n;
}
static int hwmon_genattrs(struct device *dev,
const void *drvdata,
static int hwmon_genattrs(const void *drvdata,
struct attribute **attrs,
const struct hwmon_ops *ops,
const struct hwmon_channel_info *info)
@ -505,7 +520,7 @@ static int hwmon_genattrs(struct device *dev,
attr_mask &= ~BIT(attr);
if (attr >= template_size)
return -EINVAL;
a = hwmon_genattr(dev, drvdata, info->type, attr, i,
a = hwmon_genattr(drvdata, info->type, attr, i,
templates[attr], ops);
if (IS_ERR(a)) {
if (PTR_ERR(a) != -ENOENT)
@ -519,8 +534,7 @@ static int hwmon_genattrs(struct device *dev,
}
static struct attribute **
__hwmon_create_attrs(struct device *dev, const void *drvdata,
const struct hwmon_chip_info *chip)
__hwmon_create_attrs(const void *drvdata, const struct hwmon_chip_info *chip)
{
int ret, i, aindex = 0, nattrs = 0;
struct attribute **attrs;
@ -531,15 +545,17 @@ __hwmon_create_attrs(struct device *dev, const void *drvdata,
if (nattrs == 0)
return ERR_PTR(-EINVAL);
attrs = devm_kcalloc(dev, nattrs + 1, sizeof(*attrs), GFP_KERNEL);
attrs = kcalloc(nattrs + 1, sizeof(*attrs), GFP_KERNEL);
if (!attrs)
return ERR_PTR(-ENOMEM);
for (i = 0; chip->info[i]; i++) {
ret = hwmon_genattrs(dev, drvdata, &attrs[aindex], chip->ops,
ret = hwmon_genattrs(drvdata, &attrs[aindex], chip->ops,
chip->info[i]);
if (ret < 0)
if (ret < 0) {
hwmon_free_attrs(attrs);
return ERR_PTR(ret);
}
aindex += ret;
}
@ -581,14 +597,13 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
for (i = 0; groups[i]; i++)
ngroups++;
hwdev->groups = devm_kcalloc(dev, ngroups, sizeof(*groups),
GFP_KERNEL);
hwdev->groups = kcalloc(ngroups, sizeof(*groups), GFP_KERNEL);
if (!hwdev->groups) {
err = -ENOMEM;
goto free_hwmon;
}
attrs = __hwmon_create_attrs(dev, drvdata, chip);
attrs = __hwmon_create_attrs(drvdata, chip);
if (IS_ERR(attrs)) {
err = PTR_ERR(attrs);
goto free_hwmon;
@ -633,8 +648,7 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
hwmon_temp_input, j))
continue;
if (info[i]->config[j] & HWMON_T_INPUT) {
err = hwmon_thermal_add_sensor(dev,
hwdev, j);
err = hwmon_thermal_add_sensor(hdev, j);
if (err) {
device_unregister(hdev);
goto ida_remove;
@ -647,7 +661,7 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
return hdev;
free_hwmon:
kfree(hwdev);
hwmon_dev_release(hdev);
ida_remove:
ida_simple_remove(&hwmon_ida, id);
return ERR_PTR(err);

4
drivers/hwmon/nct7802.c
View file

@ -32,8 +32,8 @@
static const u8 REG_VOLTAGE[5] = { 0x09, 0x0a, 0x0c, 0x0d, 0x0e };
static const u8 REG_VOLTAGE_LIMIT_LSB[2][5] = {
{ 0x40, 0x00, 0x42, 0x44, 0x46 },
{ 0x3f, 0x00, 0x41, 0x43, 0x45 },
{ 0x46, 0x00, 0x40, 0x42, 0x44 },
{ 0x45, 0x00, 0x3f, 0x41, 0x43 },
};
static const u8 REG_VOLTAGE_LIMIT_MSB[5] = { 0x48, 0x00, 0x47, 0x47, 0x48 };

4
drivers/hwtracing/coresight/coresight-etb10.c
View file

@ -358,9 +358,7 @@ static void *etb_alloc_buffer(struct coresight_device *csdev,
int node, cpu = event->cpu;
struct cs_buffers *buf;
if (cpu == -1)
cpu = smp_processor_id();
node = cpu_to_node(cpu);
node = (cpu == -1) ? NUMA_NO_NODE : cpu_to_node(cpu);
buf = kzalloc_node(sizeof(struct cs_buffers), GFP_KERNEL, node);
if (!buf)

4
drivers/hwtracing/coresight/coresight-tmc-etf.c
View file

@ -372,9 +372,7 @@ static void *tmc_alloc_etf_buffer(struct coresight_device *csdev,
int node, cpu = event->cpu;
struct cs_buffers *buf;
if (cpu == -1)
cpu = smp_processor_id();
node = cpu_to_node(cpu);
node = (cpu == -1) ? NUMA_NO_NODE : cpu_to_node(cpu);
/* Allocate memory structure for interaction with Perf */
buf = kzalloc_node(sizeof(struct cs_buffers), GFP_KERNEL, node);

12
drivers/infiniband/ulp/isert/ib_isert.c
View file

@ -2584,17 +2584,6 @@ isert_wait4logout(struct isert_conn *isert_conn)
}
}
static void
isert_wait4cmds(struct iscsi_conn *conn)
{
isert_info("iscsi_conn %p\n", conn);
if (conn->sess) {
target_sess_cmd_list_set_waiting(conn->sess->se_sess);
target_wait_for_sess_cmds(conn->sess->se_sess);
}
}
/**
* isert_put_unsol_pending_cmds() - Drop commands waiting for
* unsolicitate dataout
@ -2642,7 +2631,6 @@ static void isert_wait_conn(struct iscsi_conn *conn)
ib_drain_qp(isert_conn->qp);
isert_put_unsol_pending_cmds(conn);
isert_wait4cmds(conn);
isert_wait4logout(isert_conn);
queue_work(isert_release_wq, &isert_conn->release_work);

9
drivers/input/misc/keyspan_remote.c
View file

@ -339,7 +339,8 @@ static int keyspan_setup(struct usb_device* dev)
int retval = 0;
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x11, 0x40, 0x5601, 0x0, NULL, 0, 0);
0x11, 0x40, 0x5601, 0x0, NULL, 0,
USB_CTRL_SET_TIMEOUT);
if (retval) {
dev_dbg(&dev->dev, "%s - failed to set bit rate due to error: %d\n",
__func__, retval);
@ -347,7 +348,8 @@ static int keyspan_setup(struct usb_device* dev)
}
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x44, 0x40, 0x0, 0x0, NULL, 0, 0);
0x44, 0x40, 0x0, 0x0, NULL, 0,
USB_CTRL_SET_TIMEOUT);
if (retval) {
dev_dbg(&dev->dev, "%s - failed to set resume sensitivity due to error: %d\n",
__func__, retval);
@ -355,7 +357,8 @@ static int keyspan_setup(struct usb_device* dev)
}
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
0x22, 0x40, 0x0, 0x0, NULL, 0, 0);
0x22, 0x40, 0x0, 0x0, NULL, 0,
USB_CTRL_SET_TIMEOUT);
if (retval) {
dev_dbg(&dev->dev, "%s - failed to turn receive on due to error: %d\n",
__func__, retval);

2
drivers/input/misc/pm8xxx-vibrator.c
View file

@ -98,7 +98,7 @@ static int pm8xxx_vib_set(struct pm8xxx_vib *vib, bool on)
if (regs->enable_mask)
rc = regmap_update_bits(vib->regmap, regs->enable_addr,
on ? regs->enable_mask : 0, val);
regs->enable_mask, on ? ~0 : 0);
return rc;
}

2
drivers/input/rmi4/rmi_smbus.c
View file

@ -166,6 +166,7 @@ static int rmi_smb_write_block(struct rmi_transport_dev *xport, u16 rmiaddr,
/* prepare to write next block of bytes */
cur_len -= SMB_MAX_COUNT;
databuff += SMB_MAX_COUNT;
rmiaddr += SMB_MAX_COUNT;
}
exit:
mutex_unlock(&rmi_smb->page_mutex);
@ -217,6 +218,7 @@ static int rmi_smb_read_block(struct rmi_transport_dev *xport, u16 rmiaddr,
/* prepare to read next block of bytes */
cur_len -= SMB_MAX_COUNT;
databuff += SMB_MAX_COUNT;
rmiaddr += SMB_MAX_COUNT;
}
retval = 0;

6
drivers/input/tablet/aiptek.c
View file

@ -1815,14 +1815,14 @@ aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
/* Verify that a device really has an endpoint */
if (intf->altsetting[0].desc.bNumEndpoints < 1) {
if (intf->cur_altsetting->desc.bNumEndpoints < 1) {
dev_err(&intf->dev,
"interface has %d endpoints, but must have minimum 1\n",
intf->altsetting[0].desc.bNumEndpoints);
intf->cur_altsetting->desc.bNumEndpoints);
err = -EINVAL;
goto fail3;
}
endpoint = &intf->altsetting[0].endpoint[0].desc;
endpoint = &intf->cur_altsetting->endpoint[0].desc;
/* Go set up our URB, which is called when the tablet receives
* input.

10
drivers/input/tablet/gtco.c
View file

@ -875,18 +875,14 @@ static int gtco_probe(struct usb_interface *usbinterface,
}
/* Sanity check that a device has an endpoint */
if (usbinterface->altsetting[0].desc.bNumEndpoints < 1) {
if (usbinterface->cur_altsetting->desc.bNumEndpoints < 1) {
dev_err(&usbinterface->dev,
"Invalid number of endpoints\n");
error = -EINVAL;
goto err_free_urb;
}
/*
* The endpoint is always altsetting 0, we know this since we know
* this device only has one interrupt endpoint
*/
endpoint = &usbinterface->altsetting[0].endpoint[0].desc;
endpoint = &usbinterface->cur_altsetting->endpoint[0].desc;
/* Some debug */
dev_dbg(&usbinterface->dev, "gtco # interfaces: %d\n", usbinterface->num_altsetting);
@ -973,7 +969,7 @@ static int gtco_probe(struct usb_interface *usbinterface,
input_dev->dev.parent = &usbinterface->dev;
/* Setup the URB, it will be posted later on open of input device */
endpoint = &usbinterface->altsetting[0].endpoint[0].desc;
endpoint = &usbinterface->cur_altsetting->endpoint[0].desc;
usb_fill_int_urb(gtco->urbinfo,
udev,

2
drivers/input/tablet/pegasus_notetaker.c
View file

@ -274,7 +274,7 @@ static int pegasus_probe(struct usb_interface *intf,
return -ENODEV;
/* Sanity check that the device has an endpoint */
if (intf->altsetting[0].desc.bNumEndpoints < 1) {
if (intf->cur_altsetting->desc.bNumEndpoints < 1) {
dev_err(&intf->dev, "Invalid number of endpoints\n");
return -EINVAL;
}

6
drivers/input/touchscreen/sun4i-ts.c
View file

@ -246,6 +246,7 @@ static int sun4i_ts_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct device *hwmon;
struct thermal_zone_device *thermal;
int error;
u32 reg;
bool ts_attached;
@ -365,7 +366,10 @@ static int sun4i_ts_probe(struct platform_device *pdev)
if (IS_ERR(hwmon))
return PTR_ERR(hwmon);
devm_thermal_zone_of_sensor_register(ts->dev, 0, ts, &sun4i_ts_tz_ops);
thermal = devm_thermal_zone_of_sensor_register(ts->dev, 0, ts,
&sun4i_ts_tz_ops);
if (IS_ERR(thermal))
return PTR_ERR(thermal);
writel(TEMP_IRQ_EN(1), ts->base + TP_INT_FIFOC);

2
drivers/input/touchscreen/sur40.c
View file

@ -657,7 +657,7 @@ static int sur40_probe(struct usb_interface *interface,
int error;
/* Check if we really have the right interface. */
iface_desc = &interface->altsetting[0];
iface_desc = interface->cur_altsetting;
if (iface_desc->desc.bInterfaceClass != 0xFF)
return -ENODEV;

24
drivers/media/v4l2-core/v4l2-ioctl.c
View file

@ -1548,12 +1548,12 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
case V4L2_BUF_TYPE_VBI_CAPTURE:
if (unlikely(!ops->vidioc_s_fmt_vbi_cap))
break;
CLEAR_AFTER_FIELD(p, fmt.vbi);
CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_cap))
break;
CLEAR_AFTER_FIELD(p, fmt.sliced);
CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
if (unlikely(!ops->vidioc_s_fmt_vid_out))
@ -1576,22 +1576,22 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
case V4L2_BUF_TYPE_VBI_OUTPUT:
if (unlikely(!ops->vidioc_s_fmt_vbi_out))
break;
CLEAR_AFTER_FIELD(p, fmt.vbi);
CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out))
break;
CLEAR_AFTER_FIELD(p, fmt.sliced);
CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
case V4L2_BUF_TYPE_SDR_CAPTURE:
if (unlikely(!ops->vidioc_s_fmt_sdr_cap))
break;
CLEAR_AFTER_FIELD(p, fmt.sdr);
CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
case V4L2_BUF_TYPE_SDR_OUTPUT:
if (unlikely(!ops->vidioc_s_fmt_sdr_out))
break;
CLEAR_AFTER_FIELD(p, fmt.sdr);
CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
case V4L2_BUF_TYPE_META_CAPTURE:
if (unlikely(!ops->vidioc_s_fmt_meta_cap))
@ -1635,12 +1635,12 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
case V4L2_BUF_TYPE_VBI_CAPTURE:
if (unlikely(!ops->vidioc_try_fmt_vbi_cap))
break;
CLEAR_AFTER_FIELD(p, fmt.vbi);
CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_cap))
break;
CLEAR_AFTER_FIELD(p, fmt.sliced);
CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
if (unlikely(!ops->vidioc_try_fmt_vid_out))
@ -1663,22 +1663,22 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
case V4L2_BUF_TYPE_VBI_OUTPUT:
if (unlikely(!ops->vidioc_try_fmt_vbi_out))
break;
CLEAR_AFTER_FIELD(p, fmt.vbi);
CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out))
break;
CLEAR_AFTER_FIELD(p, fmt.sliced);
CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
case V4L2_BUF_TYPE_SDR_CAPTURE:
if (unlikely(!ops->vidioc_try_fmt_sdr_cap))
break;
CLEAR_AFTER_FIELD(p, fmt.sdr);
CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
case V4L2_BUF_TYPE_SDR_OUTPUT:
if (unlikely(!ops->vidioc_try_fmt_sdr_out))
break;
CLEAR_AFTER_FIELD(p, fmt.sdr);
CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
case V4L2_BUF_TYPE_META_CAPTURE:
if (unlikely(!ops->vidioc_try_fmt_meta_cap))

2
drivers/mmc/host/sdhci-tegra.c
View file

@ -177,7 +177,7 @@ static void tegra_sdhci_reset(struct sdhci_host *host, u8 mask)
misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_DDR50;
if (soc_data->nvquirks & NVQUIRK_ENABLE_SDR104)
misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDR104;
if (soc_data->nvquirks & SDHCI_MISC_CTRL_ENABLE_SDR50)
if (soc_data->nvquirks & NVQUIRK_ENABLE_SDR50)
clk_ctrl |= SDHCI_CLOCK_CTRL_SDR50_TUNING_OVERRIDE;
}

10
drivers/mmc/host/sdhci.c
View file

@ -3700,11 +3700,13 @@ int sdhci_setup_host(struct sdhci_host *host)
if (host->ops->get_min_clock)
mmc->f_min = host->ops->get_min_clock(host);
else if (host->version >= SDHCI_SPEC_300) {
if (host->clk_mul) {
mmc->f_min = (host->max_clk * host->clk_mul) / 1024;
if (host->clk_mul)
max_clk = host->max_clk * host->clk_mul;
} else
mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300;
/*
* Divided Clock Mode minimum clock rate is always less than
* Programmable Clock Mode minimum clock rate.
*/
mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300;
} else
mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200;

12
drivers/net/can/slcan.c
View file

@ -343,9 +343,16 @@ static void slcan_transmit(struct work_struct *work)
*/
static void slcan_write_wakeup(struct tty_struct *tty)
{
struct slcan *sl = tty->disc_data;
struct slcan *sl;
rcu_read_lock();
sl = rcu_dereference(tty->disc_data);
if (!sl)
goto out;
schedule_work(&sl->tx_work);
out:
rcu_read_unlock();
}
/* Send a can_frame to a TTY queue. */
@ -640,10 +647,11 @@ static void slcan_close(struct tty_struct *tty)
return;
spin_lock_bh(&sl->lock);
tty->disc_data = NULL;
rcu_assign_pointer(tty->disc_data, NULL);
sl->tty = NULL;
spin_unlock_bh(&sl->lock);
synchronize_rcu();
flush_work(&sl->tx_work);
/* Flush network side */

4
drivers/net/ethernet/broadcom/genet/bcmgenet.c
View file

@ -2166,8 +2166,8 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
DMA_END_ADDR);
/* Initialize Tx NAPI */
netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll,
NAPI_POLL_WEIGHT);
netif_tx_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll,
NAPI_POLL_WEIGHT);
}
/* Initialize a RDMA ring */

2
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
View file

@ -2449,6 +2449,8 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
if (!is_offload(adapter))
return -EOPNOTSUPP;
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (!(adapter->flags & FULL_INIT_DONE))
return -EIO; /* need the memory controllers */
if (copy_from_user(&t, useraddr, sizeof(t)))

374
drivers/net/ethernet/natsemi/sonic.c
View file

@ -63,6 +63,8 @@ static int sonic_open(struct net_device *dev)
netif_dbg(lp, ifup, dev, "%s: initializing sonic driver\n", __func__);
spin_lock_init(&lp->lock);
for (i = 0; i < SONIC_NUM_RRS; i++) {
struct sk_buff *skb = netdev_alloc_skb(dev, SONIC_RBSIZE + 2);
if (skb == NULL) {
@ -113,6 +115,24 @@ static int sonic_open(struct net_device *dev)
return 0;
}
/* Wait for the SONIC to become idle. */
static void sonic_quiesce(struct net_device *dev, u16 mask)
{
struct sonic_local * __maybe_unused lp = netdev_priv(dev);
int i;
u16 bits;
for (i = 0; i < 1000; ++i) {
bits = SONIC_READ(SONIC_CMD) & mask;
if (!bits)
return;
if (irqs_disabled() || in_interrupt())
udelay(20);
else
usleep_range(100, 200);
}
WARN_ONCE(1, "command deadline expired! 0x%04x\n", bits);
}
/*
* Close the SONIC device
@ -129,6 +149,9 @@ static int sonic_close(struct net_device *dev)
/*
* stop the SONIC, disable interrupts
*/
SONIC_WRITE(SONIC_CMD, SONIC_CR_RXDIS);
sonic_quiesce(dev, SONIC_CR_ALL);
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
@ -168,6 +191,9 @@ static void sonic_tx_timeout(struct net_device *dev)
* put the Sonic into software-reset mode and
* disable all interrupts before releasing DMA buffers
*/
SONIC_WRITE(SONIC_CMD, SONIC_CR_RXDIS);
sonic_quiesce(dev, SONIC_CR_ALL);
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
@ -205,8 +231,6 @@ static void sonic_tx_timeout(struct net_device *dev)
* wake the tx queue
* Concurrently with all of this, the SONIC is potentially writing to
* the status flags of the TDs.
* Until some mutual exclusion is added, this code will not work with SMP. However,
* MIPS Jazz machines and m68k Macs were all uni-processor machines.
*/
static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
@ -214,7 +238,8 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
struct sonic_local *lp = netdev_priv(dev);
dma_addr_t laddr;
int length;
int entry = lp->next_tx;
int entry;
unsigned long flags;
netif_dbg(lp, tx_queued, dev, "%s: skb=%p\n", __func__, skb);
@ -236,6 +261,10 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
return NETDEV_TX_OK;
}
spin_lock_irqsave(&lp->lock, flags);
entry = lp->next_tx;
sonic_tda_put(dev, entry, SONIC_TD_STATUS, 0); /* clear status */
sonic_tda_put(dev, entry, SONIC_TD_FRAG_COUNT, 1); /* single fragment */
sonic_tda_put(dev, entry, SONIC_TD_PKTSIZE, length); /* length of packet */
@ -245,10 +274,6 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
sonic_tda_put(dev, entry, SONIC_TD_LINK,
sonic_tda_get(dev, entry, SONIC_TD_LINK) | SONIC_EOL);
/*
* Must set tx_skb[entry] only after clearing status, and
* before clearing EOL and before stopping queue
*/
wmb();
lp->tx_len[entry] = length;
lp->tx_laddr[entry] = laddr;
@ -271,6 +296,8 @@ static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);
spin_unlock_irqrestore(&lp->lock, flags);
return NETDEV_TX_OK;
}
@ -283,15 +310,28 @@ static irqreturn_t sonic_interrupt(int irq, void *dev_id)
struct net_device *dev = dev_id;
struct sonic_local *lp = netdev_priv(dev);
int status;
unsigned long flags;
/* The lock has two purposes. Firstly, it synchronizes sonic_interrupt()
* with sonic_send_packet() so that the two functions can share state.
* Secondly, it makes sonic_interrupt() re-entrant, as that is required
* by macsonic which must use two IRQs with different priority levels.
*/
spin_lock_irqsave(&lp->lock, flags);
status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT;
if (!status) {
spin_unlock_irqrestore(&lp->lock, flags);
if (!(status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT))
return IRQ_NONE;
}
do {
SONIC_WRITE(SONIC_ISR, status); /* clear the interrupt(s) */
if (status & SONIC_INT_PKTRX) {
netif_dbg(lp, intr, dev, "%s: packet rx\n", __func__);
sonic_rx(dev); /* got packet(s) */
SONIC_WRITE(SONIC_ISR, SONIC_INT_PKTRX); /* clear the interrupt */
}
if (status & SONIC_INT_TXDN) {
@ -299,11 +339,12 @@ static irqreturn_t sonic_interrupt(int irq, void *dev_id)
int td_status;
int freed_some = 0;
/* At this point, cur_tx is the index of a TD that is one of:
* unallocated/freed (status set & tx_skb[entry] clear)
* allocated and sent (status set & tx_skb[entry] set )
* allocated and not yet sent (status clear & tx_skb[entry] set )
* still being allocated by sonic_send_packet (status clear & tx_skb[entry] clear)
/* The state of a Transmit Descriptor may be inferred
* from { tx_skb[entry], td_status } as follows.
* { clear, clear } => the TD has never been used
* { set, clear } => the TD was handed to SONIC
* { set, set } => the TD was handed back
* { clear, set } => the TD is available for re-use
*/
netif_dbg(lp, intr, dev, "%s: tx done\n", __func__);
@ -312,18 +353,19 @@ static irqreturn_t sonic_interrupt(int irq, void *dev_id)
if ((td_status = sonic_tda_get(dev, entry, SONIC_TD_STATUS)) == 0)
break;
if (td_status & 0x0001) {
if (td_status & SONIC_TCR_PTX) {
lp->stats.tx_packets++;
lp->stats.tx_bytes += sonic_tda_get(dev, entry, SONIC_TD_PKTSIZE);
} else {
lp->stats.tx_errors++;
if (td_status & 0x0642)
if (td_status & (SONIC_TCR_EXD |
SONIC_TCR_EXC | SONIC_TCR_BCM))
lp->stats.tx_aborted_errors++;
if (td_status & 0x0180)
if (td_status &
(SONIC_TCR_NCRS | SONIC_TCR_CRLS))
lp->stats.tx_carrier_errors++;
if (td_status & 0x0020)
if (td_status & SONIC_TCR_OWC)
lp->stats.tx_window_errors++;
if (td_status & 0x0004)
if (td_status & SONIC_TCR_FU)
lp->stats.tx_fifo_errors++;
}
@ -345,7 +387,6 @@ static irqreturn_t sonic_interrupt(int irq, void *dev_id)
if (freed_some || lp->tx_skb[entry] == NULL)
netif_wake_queue(dev); /* The ring is no longer full */
lp->cur_tx = entry;
SONIC_WRITE(SONIC_ISR, SONIC_INT_TXDN); /* clear the interrupt */
}
/*
@ -354,42 +395,37 @@ static irqreturn_t sonic_interrupt(int irq, void *dev_id)
if (status & SONIC_INT_RFO) {
netif_dbg(lp, rx_err, dev, "%s: rx fifo overrun\n",
__func__);
lp->stats.rx_fifo_errors++;
SONIC_WRITE(SONIC_ISR, SONIC_INT_RFO); /* clear the interrupt */
}
if (status & SONIC_INT_RDE) {
netif_dbg(lp, rx_err, dev, "%s: rx descriptors exhausted\n",
__func__);
lp->stats.rx_dropped++;
SONIC_WRITE(SONIC_ISR, SONIC_INT_RDE); /* clear the interrupt */
}
if (status & SONIC_INT_RBAE) {
netif_dbg(lp, rx_err, dev, "%s: rx buffer area exceeded\n",
__func__);
lp->stats.rx_dropped++;
SONIC_WRITE(SONIC_ISR, SONIC_INT_RBAE); /* clear the interrupt */
}
/* counter overruns; all counters are 16bit wide */
if (status & SONIC_INT_FAE) {
if (status & SONIC_INT_FAE)
lp->stats.rx_frame_errors += 65536;
SONIC_WRITE(SONIC_ISR, SONIC_INT_FAE); /* clear the interrupt */
}
if (status & SONIC_INT_CRC) {
if (status & SONIC_INT_CRC)
lp->stats.rx_crc_errors += 65536;
SONIC_WRITE(SONIC_ISR, SONIC_INT_CRC); /* clear the interrupt */
}
if (status & SONIC_INT_MP) {
if (status & SONIC_INT_MP)
lp->stats.rx_missed_errors += 65536;
SONIC_WRITE(SONIC_ISR, SONIC_INT_MP); /* clear the interrupt */
}
/* transmit error */
if (status & SONIC_INT_TXER) {
if (SONIC_READ(SONIC_TCR) & SONIC_TCR_FU)
netif_dbg(lp, tx_err, dev, "%s: tx fifo underrun\n",
__func__);
SONIC_WRITE(SONIC_ISR, SONIC_INT_TXER); /* clear the interrupt */
u16 tcr = SONIC_READ(SONIC_TCR);
netif_dbg(lp, tx_err, dev, "%s: TXER intr, TCR %04x\n",
__func__, tcr);
if (tcr & (SONIC_TCR_EXD | SONIC_TCR_EXC |
SONIC_TCR_FU | SONIC_TCR_BCM)) {
/* Aborted transmission. Try again. */
netif_stop_queue(dev);
SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);
}
}
/* bus retry */
@ -399,107 +435,164 @@ static irqreturn_t sonic_interrupt(int irq, void *dev_id)
/* ... to help debug DMA problems causing endless interrupts. */
/* Bounce the eth interface to turn on the interrupt again. */
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, SONIC_INT_BR); /* clear the interrupt */
}
/* load CAM done */
if (status & SONIC_INT_LCD)
SONIC_WRITE(SONIC_ISR, SONIC_INT_LCD); /* clear the interrupt */
} while((status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT));
status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT;
} while (status);
spin_unlock_irqrestore(&lp->lock, flags);
return IRQ_HANDLED;
}
/* Return the array index corresponding to a given Receive Buffer pointer. */
static int index_from_addr(struct sonic_local *lp, dma_addr_t addr,
unsigned int last)
{
unsigned int i = last;
do {
i = (i + 1) & SONIC_RRS_MASK;
if (addr == lp->rx_laddr[i])
return i;
} while (i != last);
return -ENOENT;
}
/* Allocate and map a new skb to be used as a receive buffer. */
static bool sonic_alloc_rb(struct net_device *dev, struct sonic_local *lp,
struct sk_buff **new_skb, dma_addr_t *new_addr)
{
*new_skb = netdev_alloc_skb(dev, SONIC_RBSIZE + 2);
if (!*new_skb)
return false;
if (SONIC_BUS_SCALE(lp->dma_bitmode) == 2)
skb_reserve(*new_skb, 2);
*new_addr = dma_map_single(lp->device, skb_put(*new_skb, SONIC_RBSIZE),
SONIC_RBSIZE, DMA_FROM_DEVICE);
if (!*new_addr) {
dev_kfree_skb(*new_skb);
*new_skb = NULL;
return false;
}
return true;
}
/* Place a new receive resource in the Receive Resource Area and update RWP. */
static void sonic_update_rra(struct net_device *dev, struct sonic_local *lp,
dma_addr_t old_addr, dma_addr_t new_addr)
{
unsigned int entry = sonic_rr_entry(dev, SONIC_READ(SONIC_RWP));
unsigned int end = sonic_rr_entry(dev, SONIC_READ(SONIC_RRP));
u32 buf;
/* The resources in the range [RRP, RWP) belong to the SONIC. This loop
* scans the other resources in the RRA, those in the range [RWP, RRP).
*/
do {
buf = (sonic_rra_get(dev, entry, SONIC_RR_BUFADR_H) << 16) |
sonic_rra_get(dev, entry, SONIC_RR_BUFADR_L);
if (buf == old_addr)
break;
entry = (entry + 1) & SONIC_RRS_MASK;
} while (entry != end);
WARN_ONCE(buf != old_addr, "failed to find resource!\n");
sonic_rra_put(dev, entry, SONIC_RR_BUFADR_H, new_addr >> 16);
sonic_rra_put(dev, entry, SONIC_RR_BUFADR_L, new_addr & 0xffff);
entry = (entry + 1) & SONIC_RRS_MASK;
SONIC_WRITE(SONIC_RWP, sonic_rr_addr(dev, entry));
}
/*
* We have a good packet(s), pass it/them up the network stack.
*/
static void sonic_rx(struct net_device *dev)
{
struct sonic_local *lp = netdev_priv(dev);
int status;
int entry = lp->cur_rx;
int prev_entry = lp->eol_rx;
bool rbe = false;
while (sonic_rda_get(dev, entry, SONIC_RD_IN_USE) == 0) {
struct sk_buff *used_skb;
struct sk_buff *new_skb;
dma_addr_t new_laddr;
u16 bufadr_l;
u16 bufadr_h;
int pkt_len;
u16 status = sonic_rda_get(dev, entry, SONIC_RD_STATUS);
status = sonic_rda_get(dev, entry, SONIC_RD_STATUS);
if (status & SONIC_RCR_PRX) {
/* Malloc up new buffer. */
new_skb = netdev_alloc_skb(dev, SONIC_RBSIZE + 2);
if (new_skb == NULL) {
lp->stats.rx_dropped++;
break;
}
/* provide 16 byte IP header alignment unless DMA requires otherwise */
if(SONIC_BUS_SCALE(lp->dma_bitmode) == 2)
skb_reserve(new_skb, 2);
/* If the RD has LPKT set, the chip has finished with the RB */
if ((status & SONIC_RCR_PRX) && (status & SONIC_RCR_LPKT)) {
struct sk_buff *new_skb;
dma_addr_t new_laddr;
u32 addr = (sonic_rda_get(dev, entry,
SONIC_RD_PKTPTR_H) << 16) |
sonic_rda_get(dev, entry, SONIC_RD_PKTPTR_L);
int i = index_from_addr(lp, addr, entry);
new_laddr = dma_map_single(lp->device, skb_put(new_skb, SONIC_RBSIZE),
SONIC_RBSIZE, DMA_FROM_DEVICE);
if (!new_laddr) {
dev_kfree_skb(new_skb);
printk(KERN_ERR "%s: Failed to map rx buffer, dropping packet.\n", dev->name);
lp->stats.rx_dropped++;
if (i < 0) {
WARN_ONCE(1, "failed to find buffer!\n");
break;
}
/* now we have a new skb to replace it, pass the used one up the stack */
dma_unmap_single(lp->device, lp->rx_laddr[entry], SONIC_RBSIZE, DMA_FROM_DEVICE);
used_skb = lp->rx_skb[entry];
pkt_len = sonic_rda_get(dev, entry, SONIC_RD_PKTLEN);
skb_trim(used_skb, pkt_len);
used_skb->protocol = eth_type_trans(used_skb, dev);
netif_rx(used_skb);
lp->stats.rx_packets++;
lp->stats.rx_bytes += pkt_len;
if (sonic_alloc_rb(dev, lp, &new_skb, &new_laddr)) {
struct sk_buff *used_skb = lp->rx_skb[i];
int pkt_len;
/* and insert the new skb */
lp->rx_laddr[entry] = new_laddr;
lp->rx_skb[entry] = new_skb;
/* Pass the used buffer up the stack */
dma_unmap_single(lp->device, addr, SONIC_RBSIZE,
DMA_FROM_DEVICE);
bufadr_l = (unsigned long)new_laddr & 0xffff;
bufadr_h = (unsigned long)new_laddr >> 16;
sonic_rra_put(dev, entry, SONIC_RR_BUFADR_L, bufadr_l);
sonic_rra_put(dev, entry, SONIC_RR_BUFADR_H, bufadr_h);
} else {
/* This should only happen, if we enable accepting broken packets. */
lp->stats.rx_errors++;
if (status & SONIC_RCR_FAER)
lp->stats.rx_frame_errors++;
if (status & SONIC_RCR_CRCR)
lp->stats.rx_crc_errors++;
}
if (status & SONIC_RCR_LPKT) {
/*
* this was the last packet out of the current receive buffer
* give the buffer back to the SONIC
pkt_len = sonic_rda_get(dev, entry,
SONIC_RD_PKTLEN);
skb_trim(used_skb, pkt_len);
used_skb->protocol = eth_type_trans(used_skb,
dev);
netif_rx(used_skb);
lp->stats.rx_packets++;
lp->stats.rx_bytes += pkt_len;
lp->rx_skb[i] = new_skb;
lp->rx_laddr[i] = new_laddr;
} else {
/* Failed to obtain a new buffer so re-use it */
new_laddr = addr;
lp->stats.rx_dropped++;
}
/* If RBE is already asserted when RWP advances then
* it's safe to clear RBE after processing this packet.
*/
lp->cur_rwp += SIZEOF_SONIC_RR * SONIC_BUS_SCALE(lp->dma_bitmode);
if (lp->cur_rwp >= lp->rra_end) lp->cur_rwp = lp->rra_laddr & 0xffff;
SONIC_WRITE(SONIC_RWP, lp->cur_rwp);
if (SONIC_READ(SONIC_ISR) & SONIC_INT_RBE) {
netif_dbg(lp, rx_err, dev, "%s: rx buffer exhausted\n",
__func__);
SONIC_WRITE(SONIC_ISR, SONIC_INT_RBE); /* clear the flag */
}
} else
printk(KERN_ERR "%s: rx desc without RCR_LPKT. Shouldn't happen !?\n",
dev->name);
rbe = rbe || SONIC_READ(SONIC_ISR) & SONIC_INT_RBE;
sonic_update_rra(dev, lp, addr, new_laddr);
}
/*
* give back the descriptor
*/
sonic_rda_put(dev, entry, SONIC_RD_LINK,
sonic_rda_get(dev, entry, SONIC_RD_LINK) | SONIC_EOL);
sonic_rda_put(dev, entry, SONIC_RD_STATUS, 0);
sonic_rda_put(dev, entry, SONIC_RD_IN_USE, 1);
sonic_rda_put(dev, lp->eol_rx, SONIC_RD_LINK,
sonic_rda_get(dev, lp->eol_rx, SONIC_RD_LINK) & ~SONIC_EOL);
lp->eol_rx = entry;
lp->cur_rx = entry = (entry + 1) & SONIC_RDS_MASK;
prev_entry = entry;
entry = (entry + 1) & SONIC_RDS_MASK;
}
lp->cur_rx = entry;
if (prev_entry != lp->eol_rx) {
/* Advance the EOL flag to put descriptors back into service */
sonic_rda_put(dev, prev_entry, SONIC_RD_LINK, SONIC_EOL |
sonic_rda_get(dev, prev_entry, SONIC_RD_LINK));
sonic_rda_put(dev, lp->eol_rx, SONIC_RD_LINK, ~SONIC_EOL &
sonic_rda_get(dev, lp->eol_rx, SONIC_RD_LINK));
lp->eol_rx = prev_entry;
}
if (rbe)
SONIC_WRITE(SONIC_ISR, SONIC_INT_RBE);
/*
* If any worth-while packets have been received, netif_rx()
* has done a mark_bh(NET_BH) for us and will work on them
@ -549,6 +642,8 @@ static void sonic_multicast_list(struct net_device *dev)
(netdev_mc_count(dev) > 15)) {
rcr |= SONIC_RCR_AMC;
} else {
unsigned long flags;
netif_dbg(lp, ifup, dev, "%s: mc_count %d\n", __func__,
netdev_mc_count(dev));
sonic_set_cam_enable(dev, 1); /* always enable our own address */
@ -562,9 +657,14 @@ static void sonic_multicast_list(struct net_device *dev)
i++;
}
SONIC_WRITE(SONIC_CDC, 16);
/* issue Load CAM command */
SONIC_WRITE(SONIC_CDP, lp->cda_laddr & 0xffff);
/* LCAM and TXP commands can't be used simultaneously */
spin_lock_irqsave(&lp->lock, flags);
sonic_quiesce(dev, SONIC_CR_TXP);
SONIC_WRITE(SONIC_CMD, SONIC_CR_LCAM);
sonic_quiesce(dev, SONIC_CR_LCAM);
spin_unlock_irqrestore(&lp->lock, flags);
}
}
@ -579,7 +679,6 @@ static void sonic_multicast_list(struct net_device *dev)
*/
static int sonic_init(struct net_device *dev)
{
unsigned int cmd;
struct sonic_local *lp = netdev_priv(dev);
int i;
@ -591,12 +690,16 @@ static int sonic_init(struct net_device *dev)
SONIC_WRITE(SONIC_ISR, 0x7fff);
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
/* While in reset mode, clear CAM Enable register */
SONIC_WRITE(SONIC_CE, 0);
/*
* clear software reset flag, disable receiver, clear and
* enable interrupts, then completely initialize the SONIC
*/
SONIC_WRITE(SONIC_CMD, 0);
SONIC_WRITE(SONIC_CMD, SONIC_CR_RXDIS);
SONIC_WRITE(SONIC_CMD, SONIC_CR_RXDIS | SONIC_CR_STP);
sonic_quiesce(dev, SONIC_CR_ALL);
/*
* initialize the receive resource area
@ -614,15 +717,10 @@ static int sonic_init(struct net_device *dev)
}
/* initialize all RRA registers */
lp->rra_end = (lp->rra_laddr + SONIC_NUM_RRS * SIZEOF_SONIC_RR *
SONIC_BUS_SCALE(lp->dma_bitmode)) & 0xffff;
lp->cur_rwp = (lp->rra_laddr + (SONIC_NUM_RRS - 1) * SIZEOF_SONIC_RR *
SONIC_BUS_SCALE(lp->dma_bitmode)) & 0xffff;
SONIC_WRITE(SONIC_RSA, lp->rra_laddr & 0xffff);
SONIC_WRITE(SONIC_REA, lp->rra_end);
SONIC_WRITE(SONIC_RRP, lp->rra_laddr & 0xffff);
SONIC_WRITE(SONIC_RWP, lp->cur_rwp);
SONIC_WRITE(SONIC_RSA, sonic_rr_addr(dev, 0));
SONIC_WRITE(SONIC_REA, sonic_rr_addr(dev, SONIC_NUM_RRS));
SONIC_WRITE(SONIC_RRP, sonic_rr_addr(dev, 0));
SONIC_WRITE(SONIC_RWP, sonic_rr_addr(dev, SONIC_NUM_RRS - 1));
SONIC_WRITE(SONIC_URRA, lp->rra_laddr >> 16);
SONIC_WRITE(SONIC_EOBC, (SONIC_RBSIZE >> 1) - (lp->dma_bitmode ? 2 : 1));
@ -630,14 +728,7 @@ static int sonic_init(struct net_device *dev)
netif_dbg(lp, ifup, dev, "%s: issuing RRRA command\n", __func__);
SONIC_WRITE(SONIC_CMD, SONIC_CR_RRRA);
i = 0;
while (i++ < 100) {
if (SONIC_READ(SONIC_CMD) & SONIC_CR_RRRA)
break;
}
netif_dbg(lp, ifup, dev, "%s: status=%x, i=%d\n", __func__,
SONIC_READ(SONIC_CMD), i);
sonic_quiesce(dev, SONIC_CR_RRRA);
/*
* Initialize the receive descriptors so that they
@ -712,28 +803,17 @@ static int sonic_init(struct net_device *dev)
* load the CAM
*/
SONIC_WRITE(SONIC_CMD, SONIC_CR_LCAM);
i = 0;
while (i++ < 100) {
if (SONIC_READ(SONIC_ISR) & SONIC_INT_LCD)
break;
}
netif_dbg(lp, ifup, dev, "%s: CMD=%x, ISR=%x, i=%d\n", __func__,
SONIC_READ(SONIC_CMD), SONIC_READ(SONIC_ISR), i);
sonic_quiesce(dev, SONIC_CR_LCAM);
/*
* enable receiver, disable loopback
* and enable all interrupts
*/
SONIC_WRITE(SONIC_CMD, SONIC_CR_RXEN | SONIC_CR_STP);
SONIC_WRITE(SONIC_RCR, SONIC_RCR_DEFAULT);
SONIC_WRITE(SONIC_TCR, SONIC_TCR_DEFAULT);
SONIC_WRITE(SONIC_ISR, 0x7fff);
SONIC_WRITE(SONIC_IMR, SONIC_IMR_DEFAULT);
cmd = SONIC_READ(SONIC_CMD);
if ((cmd & SONIC_CR_RXEN) == 0 || (cmd & SONIC_CR_STP) == 0)
printk(KERN_ERR "sonic_init: failed, status=%x\n", cmd);
SONIC_WRITE(SONIC_CMD, SONIC_CR_RXEN);
netif_dbg(lp, ifup, dev, "%s: new status=%x\n", __func__,
SONIC_READ(SONIC_CMD));

44
drivers/net/ethernet/natsemi/sonic.h
View file

@ -110,6 +110,9 @@
#define SONIC_CR_TXP 0x0002
#define SONIC_CR_HTX 0x0001
#define SONIC_CR_ALL (SONIC_CR_LCAM | SONIC_CR_RRRA | \
SONIC_CR_RXEN | SONIC_CR_TXP)
/*
* SONIC data configuration bits
*/
@ -175,6 +178,7 @@
#define SONIC_TCR_NCRS 0x0100
#define SONIC_TCR_CRLS 0x0080
#define SONIC_TCR_EXC 0x0040
#define SONIC_TCR_OWC 0x0020
#define SONIC_TCR_PMB 0x0008
#define SONIC_TCR_FU 0x0004
#define SONIC_TCR_BCM 0x0002
@ -274,8 +278,9 @@
#define SONIC_NUM_RDS SONIC_NUM_RRS /* number of receive descriptors */
#define SONIC_NUM_TDS 16 /* number of transmit descriptors */
#define SONIC_RDS_MASK (SONIC_NUM_RDS-1)
#define SONIC_TDS_MASK (SONIC_NUM_TDS-1)
#define SONIC_RRS_MASK (SONIC_NUM_RRS - 1)
#define SONIC_RDS_MASK (SONIC_NUM_RDS - 1)
#define SONIC_TDS_MASK (SONIC_NUM_TDS - 1)
#define SONIC_RBSIZE 1520 /* size of one resource buffer */
@ -312,8 +317,6 @@ struct sonic_local {
u32 rda_laddr; /* logical DMA address of RDA */
dma_addr_t rx_laddr[SONIC_NUM_RRS]; /* logical DMA addresses of rx skbuffs */
dma_addr_t tx_laddr[SONIC_NUM_TDS]; /* logical DMA addresses of tx skbuffs */
unsigned int rra_end;
unsigned int cur_rwp;
unsigned int cur_rx;
unsigned int cur_tx; /* first unacked transmit packet */
unsigned int eol_rx;
@ -322,6 +325,7 @@ struct sonic_local {
int msg_enable;
struct device *device; /* generic device */
struct net_device_stats stats;
spinlock_t lock;
};
#define TX_TIMEOUT (3 * HZ)
@ -344,30 +348,30 @@ static void sonic_msg_init(struct net_device *dev);
as far as we can tell. */
/* OpenBSD calls this "SWO". I'd like to think that sonic_buf_put()
is a much better name. */
static inline void sonic_buf_put(void* base, int bitmode,
static inline void sonic_buf_put(u16 *base, int bitmode,
int offset, __u16 val)
{
if (bitmode)
#ifdef __BIG_ENDIAN
((__u16 *) base + (offset*2))[1] = val;
__raw_writew(val, base + (offset * 2) + 1);
#else
((__u16 *) base + (offset*2))[0] = val;
__raw_writew(val, base + (offset * 2) + 0);
#endif
else
((__u16 *) base)[offset] = val;
__raw_writew(val, base + (offset * 1) + 0);
}
static inline __u16 sonic_buf_get(void* base, int bitmode,
static inline __u16 sonic_buf_get(u16 *base, int bitmode,
int offset)
{
if (bitmode)
#ifdef __BIG_ENDIAN
return ((volatile __u16 *) base + (offset*2))[1];
return __raw_readw(base + (offset * 2) + 1);
#else
return ((volatile __u16 *) base + (offset*2))[0];
return __raw_readw(base + (offset * 2) + 0);
#endif
else
return ((volatile __u16 *) base)[offset];
return __raw_readw(base + (offset * 1) + 0);
}
/* Inlines that you should actually use for reading/writing DMA buffers */
@ -447,6 +451,22 @@ static inline __u16 sonic_rra_get(struct net_device* dev, int entry,
(entry * SIZEOF_SONIC_RR) + offset);
}
static inline u16 sonic_rr_addr(struct net_device *dev, int entry)
{
struct sonic_local *lp = netdev_priv(dev);
return lp->rra_laddr +
entry * SIZEOF_SONIC_RR * SONIC_BUS_SCALE(lp->dma_bitmode);
}
static inline u16 sonic_rr_entry(struct net_device *dev, u16 addr)
{
struct sonic_local *lp = netdev_priv(dev);
return (addr - (u16)lp->rra_laddr) / (SIZEOF_SONIC_RR *
SONIC_BUS_SCALE(lp->dma_bitmode));
}
static const char version[] =
"sonic.c:v0.92 20.9.98 tsbogend@alpha.franken.de\n";

10
drivers/net/gtp.c
View file

@ -809,19 +809,21 @@ static struct sock *gtp_encap_enable_socket(int fd, int type,
return NULL;
}
if (sock->sk->sk_protocol != IPPROTO_UDP) {
sk = sock->sk;
if (sk->sk_protocol != IPPROTO_UDP ||
sk->sk_type != SOCK_DGRAM ||
(sk->sk_family != AF_INET && sk->sk_family != AF_INET6)) {
pr_debug("socket fd=%d not UDP\n", fd);
sk = ERR_PTR(-EINVAL);
goto out_sock;
}
lock_sock(sock->sk);
if (sock->sk->sk_user_data) {
lock_sock(sk);
if (sk->sk_user_data) {
sk = ERR_PTR(-EBUSY);
goto out_rel_sock;
}
sk = sock->sk;
sock_hold(sk);
tuncfg.sk_user_data = gtp;

12
drivers/net/slip/slip.c
View file

@ -452,9 +452,16 @@ static void slip_transmit(struct work_struct *work)
*/
static void slip_write_wakeup(struct tty_struct *tty)
{
struct slip *sl = tty->disc_data;
struct slip *sl;
rcu_read_lock();
sl = rcu_dereference(tty->disc_data);
if (!sl)
goto out;
schedule_work(&sl->tx_work);
out:
rcu_read_unlock();
}
static void sl_tx_timeout(struct net_device *dev)
@ -882,10 +889,11 @@ static void slip_close(struct tty_struct *tty)
return;
spin_lock_bh(&sl->lock);
tty->disc_data = NULL;
rcu_assign_pointer(tty->disc_data, NULL);
sl->tty = NULL;
spin_unlock_bh(&sl->lock);
synchronize_rcu();
flush_work(&sl->tx_work);
/* VSV = very important to remove timers */

4
drivers/net/tun.c
View file

@ -1900,6 +1900,10 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
if (ret != XDP_PASS) {
rcu_read_unlock();
local_bh_enable();
if (frags) {
tfile->napi.skb = NULL;
mutex_unlock(&tfile->napi_mutex);
}
return total_len;
}
}

15
drivers/net/usb/lan78xx.c
View file

@ -31,6 +31,7 @@
#include <linux/mdio.h>
#include <linux/phy.h>
#include <net/ip6_checksum.h>
#include <net/vxlan.h>
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
#include <linux/irq.h>
@ -3686,6 +3687,19 @@ static void lan78xx_tx_timeout(struct net_device *net)
tasklet_schedule(&dev->bh);
}
static netdev_features_t lan78xx_features_check(struct sk_buff *skb,
struct net_device *netdev,
netdev_features_t features)
{
if (skb->len + TX_OVERHEAD > MAX_SINGLE_PACKET_SIZE)
features &= ~NETIF_F_GSO_MASK;
features = vlan_features_check(skb, features);
features = vxlan_features_check(skb, features);
return features;
}
static const struct net_device_ops lan78xx_netdev_ops = {
.ndo_open = lan78xx_open,
.ndo_stop = lan78xx_stop,
@ -3699,6 +3713,7 @@ static const struct net_device_ops lan78xx_netdev_ops = {
.ndo_set_features = lan78xx_set_features,
.ndo_vlan_rx_add_vid = lan78xx_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = lan78xx_vlan_rx_kill_vid,
.ndo_features_check = lan78xx_features_check,
};
static void lan78xx_stat_monitor(struct timer_list *t)

16
drivers/net/wireless/marvell/libertas/cfg.c
View file

@ -273,6 +273,10 @@ add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
int hw, ap, ap_max = ie[1];
u8 hw_rate;
if (ap_max > MAX_RATES) {
lbs_deb_assoc("invalid rates\n");
return tlv;
}
/* Advance past IE header */
ie += 2;
@ -1717,6 +1721,9 @@ static int lbs_ibss_join_existing(struct lbs_private *priv,
struct cmd_ds_802_11_ad_hoc_join cmd;
u8 preamble = RADIO_PREAMBLE_SHORT;
int ret = 0;
int hw, i;
u8 rates_max;
u8 *rates;
/* TODO: set preamble based on scan result */
ret = lbs_set_radio(priv, preamble, 1);
@ -1775,9 +1782,12 @@ static int lbs_ibss_join_existing(struct lbs_private *priv,
if (!rates_eid) {
lbs_add_rates(cmd.bss.rates);
} else {
int hw, i;
u8 rates_max = rates_eid[1];
u8 *rates = cmd.bss.rates;
rates_max = rates_eid[1];
if (rates_max > MAX_RATES) {
lbs_deb_join("invalid rates");
goto out;
}
rates = cmd.bss.rates;
for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
u8 hw_rate = lbs_rates[hw].bitrate / 5;
for (i = 0; i < rates_max; i++) {

19
drivers/pci/quirks.c
View file

@ -4891,18 +4891,25 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags);
#ifdef CONFIG_PCI_ATS
/*
* Some devices have a broken ATS implementation causing IOMMU stalls.
* Don't use ATS for those devices.
* Some devices require additional driver setup to enable ATS. Don't use
* ATS for those devices as ATS will be enabled before the driver has had a
* chance to load and configure the device.
*/
static void quirk_no_ats(struct pci_dev *pdev)
static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
{
pci_info(pdev, "disabling ATS (broken on this device)\n");
if (pdev->device == 0x7340 && pdev->revision != 0xc5)
return;
pci_info(pdev, "disabling ATS\n");
pdev->ats_cap = 0;
}
/* AMD Stoney platform GPU */
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_no_ats);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_no_ats);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_amd_harvest_no_ats);
/* AMD Iceland dGPU */
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
/* AMD Navi14 dGPU */
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
#endif /* CONFIG_PCI_ATS */
/* Freescale PCIe doesn't support MSI in RC mode */

7
drivers/scsi/scsi_transport_iscsi.c
View file

@ -37,6 +37,8 @@
#define ISCSI_TRANSPORT_VERSION "2.0-870"
#define ISCSI_SEND_MAX_ALLOWED 10
static int dbg_session;
module_param_named(debug_session, dbg_session, int,
S_IRUGO | S_IWUSR);
@ -3680,6 +3682,7 @@ iscsi_if_rx(struct sk_buff *skb)
struct nlmsghdr *nlh;
struct iscsi_uevent *ev;
uint32_t group;
int retries = ISCSI_SEND_MAX_ALLOWED;
nlh = nlmsg_hdr(skb);
if (nlh->nlmsg_len < sizeof(*nlh) + sizeof(*ev) ||
@ -3710,6 +3713,10 @@ iscsi_if_rx(struct sk_buff *skb)
break;
err = iscsi_if_send_reply(portid, nlh->nlmsg_type,
ev, sizeof(*ev));
if (err == -EAGAIN && --retries < 0) {
printk(KERN_WARNING "Send reply failed, error %d\n", err);
break;
}
} while (err < 0 && err != -ECONNREFUSED && err != -ESRCH);
skb_pull(skb, rlen);
}

8
drivers/scsi/sd.c
View file

@ -1969,9 +1969,13 @@ static int sd_done(struct scsi_cmnd *SCpnt)
}
break;
case REQ_OP_ZONE_REPORT:
/* To avoid that the block layer performs an incorrect
* bio_advance() call and restart of the remainder of
* incomplete report zone BIOs, always indicate a full
* completion of REQ_OP_ZONE_REPORT.
*/
if (!result) {
good_bytes = scsi_bufflen(SCpnt)
- scsi_get_resid(SCpnt);
good_bytes = scsi_bufflen(SCpnt);
scsi_set_resid(SCpnt, 0);
} else {
good_bytes = 0;

6
drivers/target/iscsi/iscsi_target.c
View file

@ -4123,9 +4123,6 @@ int iscsit_close_connection(
iscsit_stop_nopin_response_timer(conn);
iscsit_stop_nopin_timer(conn);
if (conn->conn_transport->iscsit_wait_conn)
conn->conn_transport->iscsit_wait_conn(conn);
/*
* During Connection recovery drop unacknowledged out of order
* commands for this connection, and prepare the other commands
@ -4211,6 +4208,9 @@ int iscsit_close_connection(
target_sess_cmd_list_set_waiting(sess->se_sess);
target_wait_for_sess_cmds(sess->se_sess);
if (conn->conn_transport->iscsit_wait_conn)
conn->conn_transport->iscsit_wait_conn(conn);
ahash_request_free(conn->conn_tx_hash);
if (conn->conn_rx_hash) {
struct crypto_ahash *tfm;

11
fs/afs/cell.c
View file

@ -135,8 +135,17 @@ static struct afs_cell *afs_alloc_cell(struct afs_net *net,
_leave(" = -ENAMETOOLONG");
return ERR_PTR(-ENAMETOOLONG);
}
if (namelen == 5 && memcmp(name, "@cell", 5) == 0)
/* Prohibit cell names that contain unprintable chars, '/' and '@' or
* that begin with a dot. This also precludes "@cell".
*/
if (name[0] == '.')
return ERR_PTR(-EINVAL);
for (i = 0; i < namelen; i++) {
char ch = name[i];
if (!isprint(ch) || ch == '/' || ch == '@')
return ERR_PTR(-EINVAL);
}
_enter("%*.*s,%s", namelen, namelen, name, vllist);

17
fs/namei.c
View file

@ -1103,7 +1103,8 @@ static int may_linkat(struct path *link)
* may_create_in_sticky - Check whether an O_CREAT open in a sticky directory
* should be allowed, or not, on files that already
* exist.
* @dir: the sticky parent directory
* @dir_mode: mode bits of directory
* @dir_uid: owner of directory
* @inode: the inode of the file to open
*
* Block an O_CREAT open of a FIFO (or a regular file) when:
@ -1119,18 +1120,18 @@ static int may_linkat(struct path *link)
*
* Returns 0 if the open is allowed, -ve on error.
*/
static int may_create_in_sticky(struct dentry * const dir,
static int may_create_in_sticky(umode_t dir_mode, kuid_t dir_uid,
struct inode * const inode)
{
if ((!sysctl_protected_fifos && S_ISFIFO(inode->i_mode)) ||
(!sysctl_protected_regular && S_ISREG(inode->i_mode)) ||
likely(!(dir->d_inode->i_mode & S_ISVTX)) ||
uid_eq(inode->i_uid, dir->d_inode->i_uid) ||
likely(!(dir_mode & S_ISVTX)) ||
uid_eq(inode->i_uid, dir_uid) ||
uid_eq(current_fsuid(), inode->i_uid))
return 0;
if (likely(dir->d_inode->i_mode & 0002) ||
(dir->d_inode->i_mode & 0020 &&
if (likely(dir_mode & 0002) ||
(dir_mode & 0020 &&
((sysctl_protected_fifos >= 2 && S_ISFIFO(inode->i_mode)) ||
(sysctl_protected_regular >= 2 && S_ISREG(inode->i_mode))))) {
return -EACCES;
@ -3375,6 +3376,8 @@ static int do_last(struct nameidata *nd,
struct file *file, const struct open_flags *op)
{
struct dentry *dir = nd->path.dentry;
kuid_t dir_uid = dir->d_inode->i_uid;
umode_t dir_mode = dir->d_inode->i_mode;
int open_flag = op->open_flag;
bool will_truncate = (open_flag & O_TRUNC) != 0;
bool got_write = false;
@ -3510,7 +3513,7 @@ static int do_last(struct nameidata *nd,
error = -EISDIR;
if (d_is_dir(nd->path.dentry))
goto out;
error = may_create_in_sticky(dir,
error = may_create_in_sticky(dir_mode, dir_uid,
d_backing_inode(nd->path.dentry));
if (unlikely(error))
goto out;

8
include/linux/memory.h
View file

@ -111,16 +111,16 @@ extern int register_memory_notifier(struct notifier_block *nb);
extern void unregister_memory_notifier(struct notifier_block *nb);
extern int register_memory_isolate_notifier(struct notifier_block *nb);
extern void unregister_memory_isolate_notifier(struct notifier_block *nb);
int hotplug_memory_register(int nid, struct mem_section *section);
#ifdef CONFIG_MEMORY_HOTREMOVE
extern int unregister_memory_section(struct mem_section *);
#endif
int create_memory_block_devices(unsigned long start, unsigned long size);
void remove_memory_block_devices(unsigned long start, unsigned long size);
extern int memory_dev_init(void);
extern int memory_notify(unsigned long val, void *v);
extern int memory_isolate_notify(unsigned long val, void *v);
extern struct memory_block *find_memory_block_hinted(struct mem_section *,
struct memory_block *);
extern struct memory_block *find_memory_block(struct mem_section *);
typedef int (*walk_memory_blocks_func_t)(struct memory_block *, void *);
extern int for_each_memory_block(void *arg, walk_memory_blocks_func_t func);
#define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT)
#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */

22
include/linux/memory_hotplug.h
View file

@ -108,12 +108,10 @@ static inline bool movable_node_is_enabled(void)
return movable_node_enabled;
}
#ifdef CONFIG_MEMORY_HOTREMOVE
extern int arch_remove_memory(u64 start, u64 size,
struct vmem_altmap *altmap);
extern int __remove_pages(struct zone *zone, unsigned long start_pfn,
unsigned long nr_pages, struct vmem_altmap *altmap);
#endif /* CONFIG_MEMORY_HOTREMOVE */
extern void arch_remove_memory(int nid, u64 start, u64 size,
struct vmem_altmap *altmap);
extern void __remove_pages(unsigned long start_pfn, unsigned long nr_pages,
struct vmem_altmap *altmap);
/* reasonably generic interface to expand the physical pages */
extern int __add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages,
@ -303,6 +301,7 @@ extern bool is_mem_section_removable(unsigned long pfn, unsigned long nr_pages);
extern void try_offline_node(int nid);
extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
extern void remove_memory(int nid, u64 start, u64 size);
extern void __remove_memory(int nid, u64 start, u64 size);
#else
static inline bool is_mem_section_removable(unsigned long pfn,
@ -319,6 +318,7 @@ static inline int offline_pages(unsigned long start_pfn, unsigned long nr_pages)
}
static inline void remove_memory(int nid, u64 start, u64 size) {}
static inline void __remove_memory(int nid, u64 start, u64 size) {}
#endif /* CONFIG_MEMORY_HOTREMOVE */
extern void __ref free_area_init_core_hotplug(int nid);
@ -331,12 +331,14 @@ extern int arch_add_memory(int nid, u64 start, u64 size,
struct vmem_altmap *altmap, bool want_memblock);
extern void move_pfn_range_to_zone(struct zone *zone, unsigned long start_pfn,
unsigned long nr_pages, struct vmem_altmap *altmap);
extern void remove_pfn_range_from_zone(struct zone *zone,
unsigned long start_pfn,
unsigned long nr_pages);
extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
extern bool is_memblock_offlined(struct memory_block *mem);
extern void remove_memory(int nid, u64 start, u64 size);
extern int sparse_add_one_section(struct pglist_data *pgdat,
unsigned long start_pfn, struct vmem_altmap *altmap);
extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms,
extern int sparse_add_one_section(int nid, unsigned long start_pfn,
struct vmem_altmap *altmap);
extern void sparse_remove_one_section(struct mem_section *ms,
unsigned long map_offset, struct vmem_altmap *altmap);
extern struct page *sparse_decode_mem_map(unsigned long coded_mem_map,
unsigned long pnum);

3
include/linux/mmzone.h
View file

@ -641,8 +641,7 @@ typedef struct pglist_data {
#if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_DEFERRED_STRUCT_PAGE_INIT)
/*
* Must be held any time you expect node_start_pfn, node_present_pages
* or node_spanned_pages stay constant. Holding this will also
* guarantee that any pfn_valid() stays that way.
* or node_spanned_pages stay constant.
*
* pgdat_resize_lock() and pgdat_resize_unlock() are provided to
* manipulate node_size_lock without checking for CONFIG_MEMORY_HOTPLUG

2
include/linux/netdevice.h
View file

@ -3579,6 +3579,8 @@ int dev_set_alias(struct net_device *, const char *, size_t);
int dev_get_alias(const struct net_device *, char *, size_t);
int dev_change_net_namespace(struct net_device *, struct net *, const char *);
int __dev_set_mtu(struct net_device *, int);
int dev_validate_mtu(struct net_device *dev, int mtu,
struct netlink_ext_ack *extack);
int dev_set_mtu_ext(struct net_device *dev, int mtu,
struct netlink_ext_ack *extack);
int dev_set_mtu(struct net_device *, int);

7
include/linux/netfilter/ipset/ip_set.h
View file

@ -451,13 +451,6 @@ ip6addrptr(const struct sk_buff *skb, bool src, struct in6_addr *addr)
sizeof(*addr));
}
/* Calculate the bytes required to store the inclusive range of a-b */
static inline int
bitmap_bytes(u32 a, u32 b)
{
return 4 * ((((b - a + 8) / 8) + 3) / 4);
}
#include <linux/netfilter/ipset/ip_set_timeout.h>
#include <linux/netfilter/ipset/ip_set_comment.h>
#include <linux/netfilter/ipset/ip_set_counter.h>

7
include/linux/node.h
View file

@ -72,8 +72,7 @@ extern int register_cpu_under_node(unsigned int cpu, unsigned int nid);
extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid);
extern int register_mem_sect_under_node(struct memory_block *mem_blk,
void *arg);
extern int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
unsigned long phys_index);
extern void unregister_memory_block_under_nodes(struct memory_block *mem_blk);
#ifdef CONFIG_HUGETLBFS
extern void register_hugetlbfs_with_node(node_registration_func_t doregister,
@ -105,10 +104,8 @@ static inline int register_mem_sect_under_node(struct memory_block *mem_blk,
{
return 0;
}
static inline int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
unsigned long phys_index)
static inline void unregister_memory_block_under_nodes(struct memory_block *mem_blk)
{
return 0;
}
static inline void register_hugetlbfs_with_node(node_registration_func_t reg,

6
include/trace/events/xen.h
View file

@ -66,7 +66,11 @@ TRACE_EVENT(xen_mc_callback,
TP_PROTO(xen_mc_callback_fn_t fn, void *data),
TP_ARGS(fn, data),
TP_STRUCT__entry(
__field(xen_mc_callback_fn_t, fn)
/*
* Use field_struct to avoid is_signed_type()
* comparison of a function pointer.
*/
__field_struct(xen_mc_callback_fn_t, fn)
__field(void *, data)
),
TP_fast_assign(

12
kernel/memremap.c
View file

@ -120,7 +120,9 @@ static void devm_memremap_pages_release(void *data)
struct device *dev = pgmap->dev;
struct resource *res = &pgmap->res;
resource_size_t align_start, align_size;
struct page *first_page;
unsigned long pfn;
int nid;
pgmap->kill(pgmap->ref);
for_each_device_pfn(pfn, pgmap)
@ -131,13 +133,17 @@ static void devm_memremap_pages_release(void *data)
align_size = ALIGN(res->start + resource_size(res), SECTION_SIZE)
- align_start;
/* make sure to access a memmap that was actually initialized */
first_page = pfn_to_page(pfn_first(pgmap));
nid = page_to_nid(first_page);
mem_hotplug_begin();
if (pgmap->type == MEMORY_DEVICE_PRIVATE) {
pfn = align_start >> PAGE_SHIFT;
__remove_pages(page_zone(pfn_to_page(pfn)), pfn,
align_size >> PAGE_SHIFT, NULL);
__remove_pages(pfn, align_size >> PAGE_SHIFT, NULL);
} else {
arch_remove_memory(align_start, align_size,
arch_remove_memory(nid, align_start, align_size,
pgmap->altmap_valid ? &pgmap->altmap : NULL);
kasan_remove_zero_shadow(__va(align_start), align_size);
}

177
kernel/trace/trace_events_hist.c
View file

@ -49,6 +49,7 @@ struct hist_field {
struct ftrace_event_field *field;
unsigned long flags;
hist_field_fn_t fn;
unsigned int ref;
unsigned int size;
unsigned int offset;
unsigned int is_signed;
@ -1274,6 +1275,17 @@ static u64 hist_field_cpu(struct hist_field *hist_field,
return cpu;
}
/**
* check_field_for_var_ref - Check if a VAR_REF field references a variable
* @hist_field: The VAR_REF field to check
* @var_data: The hist trigger that owns the variable
* @var_idx: The trigger variable identifier
*
* Check the given VAR_REF field to see whether or not it references
* the given variable associated with the given trigger.
*
* Return: The VAR_REF field if it does reference the variable, NULL if not
*/
static struct hist_field *
check_field_for_var_ref(struct hist_field *hist_field,
struct hist_trigger_data *var_data,
@ -1324,6 +1336,18 @@ check_field_for_var_refs(struct hist_trigger_data *hist_data,
return found;
}
/**
* find_var_ref - Check if a trigger has a reference to a trigger variable
* @hist_data: The hist trigger that might have a reference to the variable
* @var_data: The hist trigger that owns the variable
* @var_idx: The trigger variable identifier
*
* Check the list of var_refs[] on the first hist trigger to see
* whether any of them are references to the variable on the second
* trigger.
*
* Return: The VAR_REF field referencing the variable if so, NULL if not
*/
static struct hist_field *find_var_ref(struct hist_trigger_data *hist_data,
struct hist_trigger_data *var_data,
unsigned int var_idx)
@ -1350,6 +1374,20 @@ static struct hist_field *find_var_ref(struct hist_trigger_data *hist_data,
return found;
}
/**
* find_any_var_ref - Check if there is a reference to a given trigger variable
* @hist_data: The hist trigger
* @var_idx: The trigger variable identifier
*
* Check to see whether the given variable is currently referenced by
* any other trigger.
*
* The trigger the variable is defined on is explicitly excluded - the
* assumption being that a self-reference doesn't prevent a trigger
* from being removed.
*
* Return: The VAR_REF field referencing the variable if so, NULL if not
*/
static struct hist_field *find_any_var_ref(struct hist_trigger_data *hist_data,
unsigned int var_idx)
{
@ -1368,6 +1406,19 @@ static struct hist_field *find_any_var_ref(struct hist_trigger_data *hist_data,
return found;
}
/**
* check_var_refs - Check if there is a reference to any of trigger's variables
* @hist_data: The hist trigger
*
* A trigger can define one or more variables. If any one of them is
* currently referenced by any other trigger, this function will
* determine that.
* Typically used to determine whether or not a trigger can be removed
* - if there are any references to a trigger's variables, it cannot.
*
* Return: True if there is a reference to any of trigger's variables
*/
static bool check_var_refs(struct hist_trigger_data *hist_data)
{
struct hist_field *field;
@ -1511,11 +1562,13 @@ static struct hist_field *find_var(struct hist_trigger_data *hist_data,
struct event_trigger_data *test;
struct hist_field *hist_field;
lockdep_assert_held(&event_mutex);
hist_field = find_var_field(hist_data, var_name);
if (hist_field)
return hist_field;
list_for_each_entry_rcu(test, &file->triggers, list) {
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
test_data = test->private_data;
hist_field = find_var_field(test_data, var_name);
@ -1565,7 +1618,9 @@ static struct hist_field *find_file_var(struct trace_event_file *file,
struct event_trigger_data *test;
struct hist_field *hist_field;
list_for_each_entry_rcu(test, &file->triggers, list) {
lockdep_assert_held(&event_mutex);
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
test_data = test->private_data;
hist_field = find_var_field(test_data, var_name);
@ -2171,6 +2226,23 @@ static int contains_operator(char *str)
return field_op;
}
static void get_hist_field(struct hist_field *hist_field)
{
hist_field->ref++;
}
static void __destroy_hist_field(struct hist_field *hist_field)
{
if (--hist_field->ref > 1)
return;
kfree(hist_field->var.name);
kfree(hist_field->name);
kfree(hist_field->type);
kfree(hist_field);
}
static void destroy_hist_field(struct hist_field *hist_field,
unsigned int level)
{
@ -2182,14 +2254,13 @@ static void destroy_hist_field(struct hist_field *hist_field,
if (!hist_field)
return;
if (hist_field->flags & HIST_FIELD_FL_VAR_REF)
return; /* var refs will be destroyed separately */
for (i = 0; i < HIST_FIELD_OPERANDS_MAX; i++)
destroy_hist_field(hist_field->operands[i], level + 1);
kfree(hist_field->var.name);
kfree(hist_field->name);
kfree(hist_field->type);
kfree(hist_field);
__destroy_hist_field(hist_field);
}
static struct hist_field *create_hist_field(struct hist_trigger_data *hist_data,
@ -2206,6 +2277,8 @@ static struct hist_field *create_hist_field(struct hist_trigger_data *hist_data,
if (!hist_field)
return NULL;
hist_field->ref = 1;
hist_field->hist_data = hist_data;
if (flags & HIST_FIELD_FL_EXPR || flags & HIST_FIELD_FL_ALIAS)
@ -2316,6 +2389,12 @@ static void destroy_hist_fields(struct hist_trigger_data *hist_data)
hist_data->fields[i] = NULL;
}
}
for (i = 0; i < hist_data->n_var_refs; i++) {
WARN_ON(!(hist_data->var_refs[i]->flags & HIST_FIELD_FL_VAR_REF));
__destroy_hist_field(hist_data->var_refs[i]);
hist_data->var_refs[i] = NULL;
}
}
static int init_var_ref(struct hist_field *ref_field,
@ -2374,11 +2453,38 @@ static int init_var_ref(struct hist_field *ref_field,
goto out;
}
static struct hist_field *create_var_ref(struct hist_field *var_field,
/**
* create_var_ref - Create a variable reference and attach it to trigger
* @hist_data: The trigger that will be referencing the variable
* @var_field: The VAR field to create a reference to
* @system: The optional system string
* @event_name: The optional event_name string
*
* Given a variable hist_field, create a VAR_REF hist_field that
* represents a reference to it.
*
* This function also adds the reference to the trigger that
* now references the variable.
*
* Return: The VAR_REF field if successful, NULL if not
*/
static struct hist_field *create_var_ref(struct hist_trigger_data *hist_data,
struct hist_field *var_field,
char *system, char *event_name)
{
unsigned long flags = HIST_FIELD_FL_VAR_REF;
struct hist_field *ref_field;
int i;
/* Check if the variable already exists */
for (i = 0; i < hist_data->n_var_refs; i++) {
ref_field = hist_data->var_refs[i];
if (ref_field->var.idx == var_field->var.idx &&
ref_field->var.hist_data == var_field->hist_data) {
get_hist_field(ref_field);
return ref_field;
}
}
ref_field = create_hist_field(var_field->hist_data, NULL, flags, NULL);
if (ref_field) {
@ -2386,6 +2492,9 @@ static struct hist_field *create_var_ref(struct hist_field *var_field,
destroy_hist_field(ref_field, 0);
return NULL;
}
hist_data->var_refs[hist_data->n_var_refs] = ref_field;
ref_field->var_ref_idx = hist_data->n_var_refs++;
}
return ref_field;
@ -2459,7 +2568,8 @@ static struct hist_field *parse_var_ref(struct hist_trigger_data *hist_data,
var_field = find_event_var(hist_data, system, event_name, var_name);
if (var_field)
ref_field = create_var_ref(var_field, system, event_name);
ref_field = create_var_ref(hist_data, var_field,
system, event_name);
if (!ref_field)
hist_err_event("Couldn't find variable: $",
@ -2579,8 +2689,6 @@ static struct hist_field *parse_atom(struct hist_trigger_data *hist_data,
if (!s) {
hist_field = parse_var_ref(hist_data, ref_system, ref_event, ref_var);
if (hist_field) {
hist_data->var_refs[hist_data->n_var_refs] = hist_field;
hist_field->var_ref_idx = hist_data->n_var_refs++;
if (var_name) {
hist_field = create_alias(hist_data, hist_field, var_name);
if (!hist_field) {
@ -2828,7 +2936,9 @@ static char *find_trigger_filter(struct hist_trigger_data *hist_data,
{
struct event_trigger_data *test;
list_for_each_entry_rcu(test, &file->triggers, list) {
lockdep_assert_held(&event_mutex);
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
if (test->private_data == hist_data)
return test->filter_str;
@ -2879,9 +2989,11 @@ find_compatible_hist(struct hist_trigger_data *target_hist_data,
struct event_trigger_data *test;
unsigned int n_keys;
lockdep_assert_held(&event_mutex);
n_keys = target_hist_data->n_fields - target_hist_data->n_vals;
list_for_each_entry_rcu(test, &file->triggers, list) {
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
hist_data = test->private_data;
@ -3354,7 +3466,6 @@ static int onmax_create(struct hist_trigger_data *hist_data,
unsigned int var_ref_idx = hist_data->n_var_refs;
struct field_var *field_var;
char *onmax_var_str, *param;
unsigned long flags;
unsigned int i;
int ret = 0;
@ -3371,18 +3482,10 @@ static int onmax_create(struct hist_trigger_data *hist_data,
return -EINVAL;
}
flags = HIST_FIELD_FL_VAR_REF;
ref_field = create_hist_field(hist_data, NULL, flags, NULL);
ref_field = create_var_ref(hist_data, var_field, NULL, NULL);
if (!ref_field)
return -ENOMEM;
if (init_var_ref(ref_field, var_field, NULL, NULL)) {
destroy_hist_field(ref_field, 0);
ret = -ENOMEM;
goto out;
}
hist_data->var_refs[hist_data->n_var_refs] = ref_field;
ref_field->var_ref_idx = hist_data->n_var_refs++;
data->onmax.var = ref_field;
data->fn = onmax_save;
@ -3573,9 +3676,6 @@ static void save_synth_var_ref(struct hist_trigger_data *hist_data,
struct hist_field *var_ref)
{
hist_data->synth_var_refs[hist_data->n_synth_var_refs++] = var_ref;
hist_data->var_refs[hist_data->n_var_refs] = var_ref;
var_ref->var_ref_idx = hist_data->n_var_refs++;
}
static int check_synth_field(struct synth_event *event,
@ -3730,7 +3830,8 @@ static int onmatch_create(struct hist_trigger_data *hist_data,
}
if (check_synth_field(event, hist_field, field_pos) == 0) {
var_ref = create_var_ref(hist_field, system, event_name);
var_ref = create_var_ref(hist_data, hist_field,
system, event_name);
if (!var_ref) {
kfree(p);
ret = -ENOMEM;
@ -4905,7 +5006,7 @@ static int hist_show(struct seq_file *m, void *v)
goto out_unlock;
}
list_for_each_entry_rcu(data, &event_file->triggers, list) {
list_for_each_entry(data, &event_file->triggers, list) {
if (data->cmd_ops->trigger_type == ETT_EVENT_HIST)
hist_trigger_show(m, data, n++);
}
@ -5296,7 +5397,9 @@ static int hist_register_trigger(char *glob, struct event_trigger_ops *ops,
if (hist_data->attrs->name && !named_data)
goto new;
list_for_each_entry_rcu(test, &file->triggers, list) {
lockdep_assert_held(&event_mutex);
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
if (!hist_trigger_match(data, test, named_data, false))
continue;
@ -5380,10 +5483,12 @@ static bool have_hist_trigger_match(struct event_trigger_data *data,
struct event_trigger_data *test, *named_data = NULL;
bool match = false;
lockdep_assert_held(&event_mutex);
if (hist_data->attrs->name)
named_data = find_named_trigger(hist_data->attrs->name);
list_for_each_entry_rcu(test, &file->triggers, list) {
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
if (hist_trigger_match(data, test, named_data, false)) {
match = true;
@ -5401,10 +5506,12 @@ static bool hist_trigger_check_refs(struct event_trigger_data *data,
struct hist_trigger_data *hist_data = data->private_data;
struct event_trigger_data *test, *named_data = NULL;
lockdep_assert_held(&event_mutex);
if (hist_data->attrs->name)
named_data = find_named_trigger(hist_data->attrs->name);
list_for_each_entry_rcu(test, &file->triggers, list) {
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
if (!hist_trigger_match(data, test, named_data, false))
continue;
@ -5426,10 +5533,12 @@ static void hist_unregister_trigger(char *glob, struct event_trigger_ops *ops,
struct event_trigger_data *test, *named_data = NULL;
bool unregistered = false;
lockdep_assert_held(&event_mutex);
if (hist_data->attrs->name)
named_data = find_named_trigger(hist_data->attrs->name);
list_for_each_entry_rcu(test, &file->triggers, list) {
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
if (!hist_trigger_match(data, test, named_data, false))
continue;
@ -5455,7 +5564,9 @@ static bool hist_file_check_refs(struct trace_event_file *file)
struct hist_trigger_data *hist_data;
struct event_trigger_data *test;
list_for_each_entry_rcu(test, &file->triggers, list) {
lockdep_assert_held(&event_mutex);
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == ETT_EVENT_HIST) {
hist_data = test->private_data;
if (check_var_refs(hist_data))

20
kernel/trace/trace_events_trigger.c
View file

@ -495,7 +495,9 @@ void update_cond_flag(struct trace_event_file *file)
struct event_trigger_data *data;
bool set_cond = false;
list_for_each_entry_rcu(data, &file->triggers, list) {
lockdep_assert_held(&event_mutex);
list_for_each_entry(data, &file->triggers, list) {
if (data->filter || event_command_post_trigger(data->cmd_ops) ||
event_command_needs_rec(data->cmd_ops)) {
set_cond = true;
@ -530,7 +532,9 @@ static int register_trigger(char *glob, struct event_trigger_ops *ops,
struct event_trigger_data *test;
int ret = 0;
list_for_each_entry_rcu(test, &file->triggers, list) {
lockdep_assert_held(&event_mutex);
list_for_each_entry(test, &file->triggers, list) {
if (test->cmd_ops->trigger_type == data->cmd_ops->trigger_type) {
ret = -EEXIST;
goto out;
@ -575,7 +579,9 @@ static void unregister_trigger(char *glob, struct event_trigger_ops *ops,
struct event_trigger_data *data;
bool unregistered = false;
list_for_each_entry_rcu(data, &file->triggers, list) {
lockdep_assert_held(&event_mutex);
list_for_each_entry(data, &file->triggers, list) {
if (data->cmd_ops->trigger_type == test->cmd_ops->trigger_type) {
unregistered = true;
list_del_rcu(&data->list);
@ -1490,7 +1496,9 @@ int event_enable_register_trigger(char *glob,
struct event_trigger_data *test;
int ret = 0;
list_for_each_entry_rcu(test, &file->triggers, list) {
lockdep_assert_held(&event_mutex);
list_for_each_entry(test, &file->triggers, list) {
test_enable_data = test->private_data;
if (test_enable_data &&
(test->cmd_ops->trigger_type ==
@ -1530,7 +1538,9 @@ void event_enable_unregister_trigger(char *glob,
struct event_trigger_data *data;
bool unregistered = false;
list_for_each_entry_rcu(data, &file->triggers, list) {
lockdep_assert_held(&event_mutex);
list_for_each_entry(data, &file->triggers, list) {
enable_data = data->private_data;
if (enable_data &&
(data->cmd_ops->trigger_type ==

8
mm/hmm.c
View file

@ -997,21 +997,21 @@ static void hmm_devmem_release(void *data)
struct hmm_devmem *devmem = data;
struct resource *resource = devmem->resource;
unsigned long start_pfn, npages;
struct zone *zone;
struct page *page;
int nid;
/* pages are dead and unused, undo the arch mapping */
start_pfn = (resource->start & ~(PA_SECTION_SIZE - 1)) >> PAGE_SHIFT;
npages = ALIGN(resource_size(resource), PA_SECTION_SIZE) >> PAGE_SHIFT;
page = pfn_to_page(start_pfn);
zone = page_zone(page);
nid = page_to_nid(page);
mem_hotplug_begin();
if (resource->desc == IORES_DESC_DEVICE_PRIVATE_MEMORY)
__remove_pages(zone, start_pfn, npages, NULL);
__remove_pages(start_pfn, npages, NULL);
else
arch_remove_memory(start_pfn << PAGE_SHIFT,
arch_remove_memory(nid, start_pfn << PAGE_SHIFT,
npages << PAGE_SHIFT, NULL);
mem_hotplug_done();

168
mm/memory_hotplug.c
View file

@ -255,14 +255,8 @@ static int __meminit __add_section(int nid, unsigned long phys_start_pfn,
if (pfn_valid(phys_start_pfn))
return -EEXIST;
ret = sparse_add_one_section(NODE_DATA(nid), phys_start_pfn, altmap);
if (ret < 0)
return ret;
if (!want_memblock)
return 0;
return hotplug_memory_register(nid, __pfn_to_section(phys_start_pfn));
ret = sparse_add_one_section(nid, phys_start_pfn, altmap);
return ret < 0 ? ret : 0;
}
/*
@ -315,7 +309,6 @@ int __ref __add_pages(int nid, unsigned long phys_start_pfn,
return err;
}
#ifdef CONFIG_MEMORY_HOTREMOVE
/* find the smallest valid pfn in the range [start_pfn, end_pfn) */
static unsigned long find_smallest_section_pfn(int nid, struct zone *zone,
unsigned long start_pfn,
@ -456,10 +449,11 @@ static void update_pgdat_span(struct pglist_data *pgdat)
pgdat->node_spanned_pages = node_end_pfn - node_start_pfn;
}
static void __remove_zone(struct zone *zone, unsigned long start_pfn)
void __ref remove_pfn_range_from_zone(struct zone *zone,
unsigned long start_pfn,
unsigned long nr_pages)
{
struct pglist_data *pgdat = zone->zone_pgdat;
int nr_pages = PAGES_PER_SECTION;
unsigned long flags;
#ifdef CONFIG_ZONE_DEVICE
@ -472,37 +466,33 @@ static void __remove_zone(struct zone *zone, unsigned long start_pfn)
return;
#endif
clear_zone_contiguous(zone);
pgdat_resize_lock(zone->zone_pgdat, &flags);
shrink_zone_span(zone, start_pfn, start_pfn + nr_pages);
update_pgdat_span(pgdat);
pgdat_resize_unlock(zone->zone_pgdat, &flags);
set_zone_contiguous(zone);
}
static int __remove_section(struct zone *zone, struct mem_section *ms,
unsigned long map_offset, struct vmem_altmap *altmap)
static void __remove_section(struct mem_section *ms, unsigned long map_offset,
struct vmem_altmap *altmap)
{
unsigned long start_pfn;
int scn_nr;
int ret = -EINVAL;
if (!valid_section(ms))
return ret;
ret = unregister_memory_section(ms);
if (ret)
return ret;
if (WARN_ON_ONCE(!valid_section(ms)))
return;
scn_nr = __section_nr(ms);
start_pfn = section_nr_to_pfn((unsigned long)scn_nr);
__remove_zone(zone, start_pfn);
sparse_remove_one_section(zone, ms, map_offset, altmap);
return 0;
sparse_remove_one_section(ms, map_offset, altmap);
}
/**
* __remove_pages() - remove sections of pages from a zone
* @zone: zone from which pages need to be removed
* __remove_pages() - remove sections of pages
* @phys_start_pfn: starting pageframe (must be aligned to start of a section)
* @nr_pages: number of pages to remove (must be multiple of section size)
* @altmap: alternative device page map or %NULL if default memmap is used
@ -512,34 +502,15 @@ static int __remove_section(struct zone *zone, struct mem_section *ms,
* sure that pages are marked reserved and zones are adjust properly by
* calling offline_pages().
*/
int __remove_pages(struct zone *zone, unsigned long phys_start_pfn,
unsigned long nr_pages, struct vmem_altmap *altmap)
void __remove_pages(unsigned long phys_start_pfn, unsigned long nr_pages,
struct vmem_altmap *altmap)
{
unsigned long i;
unsigned long map_offset = 0;
int sections_to_remove, ret = 0;
int sections_to_remove;
/* In the ZONE_DEVICE case device driver owns the memory region */
if (is_dev_zone(zone)) {
if (altmap)
map_offset = vmem_altmap_offset(altmap);
} else {
resource_size_t start, size;
start = phys_start_pfn << PAGE_SHIFT;
size = nr_pages * PAGE_SIZE;
ret = release_mem_region_adjustable(&iomem_resource, start,
size);
if (ret) {
resource_size_t endres = start + size - 1;
pr_warn("Unable to release resource <%pa-%pa> (%d)\n",
&start, &endres, ret);
}
}
clear_zone_contiguous(zone);
if (altmap)
map_offset = vmem_altmap_offset(altmap);
/*
* We can only remove entire sections
@ -552,18 +523,10 @@ int __remove_pages(struct zone *zone, unsigned long phys_start_pfn,
unsigned long pfn = phys_start_pfn + i*PAGES_PER_SECTION;
cond_resched();
ret = __remove_section(zone, __pfn_to_section(pfn), map_offset,
altmap);
__remove_section(__pfn_to_section(pfn), map_offset, altmap);
map_offset = 0;
if (ret)
break;
}
set_zone_contiguous(zone);
return ret;
}
#endif /* CONFIG_MEMORY_HOTREMOVE */
int set_online_page_callback(online_page_callback_t callback)
{
@ -932,6 +895,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
(unsigned long long) pfn << PAGE_SHIFT,
(((unsigned long long) pfn + nr_pages) << PAGE_SHIFT) - 1);
memory_notify(MEM_CANCEL_ONLINE, &arg);
remove_pfn_range_from_zone(zone, pfn, nr_pages);
mem_hotplug_done();
return ret;
}
@ -1119,6 +1083,13 @@ int __ref add_memory_resource(int nid, struct resource *res, bool online)
if (ret < 0)
goto error;
/* create memory block devices after memory was added */
ret = create_memory_block_devices(start, size);
if (ret) {
arch_remove_memory(nid, start, size, NULL);
goto error;
}
if (new_node) {
/* If sysfs file of new node can't be created, cpu on the node
* can't be hot-added. There is no rollback way now.
@ -1709,6 +1680,7 @@ static int __ref __offline_pages(unsigned long start_pfn,
writeback_set_ratelimit();
memory_notify(MEM_OFFLINE, &arg);
remove_pfn_range_from_zone(zone, start_pfn, nr_pages);
mem_hotplug_done();
return 0;
@ -1839,6 +1811,18 @@ static int check_and_unmap_cpu_on_node(pg_data_t *pgdat)
return 0;
}
static int check_no_memblock_for_node_cb(struct memory_block *mem, void *arg)
{
int nid = *(int *)arg;
/*
* If a memory block belongs to multiple nodes, the stored nid is not
* reliable. However, such blocks are always online (e.g., cannot get
* offlined) and, therefore, are still spanned by the node.
*/
return mem->nid == nid ? -EEXIST : 0;
}
/**
* try_offline_node
* @nid: the node ID
@ -1851,25 +1835,24 @@ static int check_and_unmap_cpu_on_node(pg_data_t *pgdat)
void try_offline_node(int nid)
{
pg_data_t *pgdat = NODE_DATA(nid);
unsigned long start_pfn = pgdat->node_start_pfn;
unsigned long end_pfn = start_pfn + pgdat->node_spanned_pages;
unsigned long pfn;
int rc;
for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
unsigned long section_nr = pfn_to_section_nr(pfn);
if (!present_section_nr(section_nr))
continue;
if (pfn_to_nid(pfn) != nid)
continue;
/*
* some memory sections of this node are not removed, and we
* can't offline node now.
*/
/*
* If the node still spans pages (especially ZONE_DEVICE), don't
* offline it. A node spans memory after move_pfn_range_to_zone(),
* e.g., after the memory block was onlined.
*/
if (pgdat->node_spanned_pages)
return;
/*
* Especially offline memory blocks might not be spanned by the
* node. They will get spanned by the node once they get onlined.
* However, they link to the node in sysfs and can get onlined later.
*/
rc = for_each_memory_block(&nid, check_no_memblock_for_node_cb);
if (rc)
return;
}
if (check_and_unmap_cpu_on_node(pgdat))
return;
@ -1883,6 +1866,26 @@ void try_offline_node(int nid)
}
EXPORT_SYMBOL(try_offline_node);
static void __release_memory_resource(resource_size_t start,
resource_size_t size)
{
int ret;
/*
* When removing memory in the same granularity as it was added,
* this function never fails. It might only fail if resources
* have to be adjusted or split. We'll ignore the error, as
* removing of memory cannot fail.
*/
ret = release_mem_region_adjustable(&iomem_resource, start, size);
if (ret) {
resource_size_t endres = start + size - 1;
pr_warn("Unable to release resource <%pa-%pa> (%d)\n",
&start, &endres, ret);
}
}
/**
* remove_memory
* @nid: the node ID
@ -1893,7 +1896,7 @@ EXPORT_SYMBOL(try_offline_node);
* and online/offline operations before this call, as required by
* try_offline_node().
*/
void __ref remove_memory(int nid, u64 start, u64 size)
void __ref __remove_memory(int nid, u64 start, u64 size)
{
int ret;
@ -1916,11 +1919,22 @@ void __ref remove_memory(int nid, u64 start, u64 size)
memblock_free(start, size);
memblock_remove(start, size);
arch_remove_memory(start, size, NULL);
/* remove memory block devices before removing memory */
remove_memory_block_devices(start, size);
arch_remove_memory(nid, start, size, NULL);
__release_memory_resource(start, size);
try_offline_node(nid);
mem_hotplug_done();
}
void remove_memory(int nid, u64 start, u64 size)
{
lock_device_hotplug();
__remove_memory(nid, start, size);
unlock_device_hotplug();
}
EXPORT_SYMBOL_GPL(remove_memory);
#endif /* CONFIG_MEMORY_HOTREMOVE */

27
mm/sparse.c
View file

@ -576,7 +576,6 @@ static void __kfree_section_memmap(struct page *memmap,
vmemmap_free(start, end, altmap);
}
#ifdef CONFIG_MEMORY_HOTREMOVE
static void free_map_bootmem(struct page *memmap)
{
unsigned long start = (unsigned long)memmap;
@ -584,7 +583,6 @@ static void free_map_bootmem(struct page *memmap)
vmemmap_free(start, end, NULL);
}
#endif /* CONFIG_MEMORY_HOTREMOVE */
#else
static struct page *__kmalloc_section_memmap(void)
{
@ -623,7 +621,6 @@ static void __kfree_section_memmap(struct page *memmap,
get_order(sizeof(struct page) * PAGES_PER_SECTION));
}
#ifdef CONFIG_MEMORY_HOTREMOVE
static void free_map_bootmem(struct page *memmap)
{
unsigned long maps_section_nr, removing_section_nr, i;
@ -653,7 +650,6 @@ static void free_map_bootmem(struct page *memmap)
put_page_bootmem(page);
}
}
#endif /* CONFIG_MEMORY_HOTREMOVE */
#endif /* CONFIG_SPARSEMEM_VMEMMAP */
/*
@ -661,25 +657,24 @@ static void free_map_bootmem(struct page *memmap)
* set. If this is <=0, then that means that the passed-in
* map was not consumed and must be freed.
*/
int __meminit sparse_add_one_section(struct pglist_data *pgdat,
unsigned long start_pfn, struct vmem_altmap *altmap)
int __meminit sparse_add_one_section(int nid, unsigned long start_pfn,
struct vmem_altmap *altmap)
{
unsigned long section_nr = pfn_to_section_nr(start_pfn);
struct mem_section *ms;
struct page *memmap;
unsigned long *usemap;
unsigned long flags;
int ret;
/*
* no locking for this, because it does its own
* plus, it does a kmalloc
*/
ret = sparse_index_init(section_nr, pgdat->node_id);
ret = sparse_index_init(section_nr, nid);
if (ret < 0 && ret != -EEXIST)
return ret;
ret = 0;
memmap = kmalloc_section_memmap(section_nr, pgdat->node_id, altmap);
memmap = kmalloc_section_memmap(section_nr, nid, altmap);
if (!memmap)
return -ENOMEM;
usemap = __kmalloc_section_usemap();
@ -688,8 +683,6 @@ int __meminit sparse_add_one_section(struct pglist_data *pgdat,
return -ENOMEM;
}
pgdat_resize_lock(pgdat, &flags);
ms = __pfn_to_section(start_pfn);
if (ms->section_mem_map & SECTION_MARKED_PRESENT) {
ret = -EEXIST;
@ -708,7 +701,6 @@ int __meminit sparse_add_one_section(struct pglist_data *pgdat,
sparse_init_one_section(ms, section_nr, memmap, usemap);
out:
pgdat_resize_unlock(pgdat, &flags);
if (ret < 0) {
kfree(usemap);
__kfree_section_memmap(memmap, altmap);
@ -716,7 +708,6 @@ int __meminit sparse_add_one_section(struct pglist_data *pgdat,
return ret;
}
#ifdef CONFIG_MEMORY_HOTREMOVE
#ifdef CONFIG_MEMORY_FAILURE
static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
{
@ -766,14 +757,12 @@ static void free_section_usemap(struct page *memmap, unsigned long *usemap,
free_map_bootmem(memmap);
}
void sparse_remove_one_section(struct zone *zone, struct mem_section *ms,
unsigned long map_offset, struct vmem_altmap *altmap)
void sparse_remove_one_section(struct mem_section *ms, unsigned long map_offset,
struct vmem_altmap *altmap)
{
struct page *memmap = NULL;
unsigned long *usemap = NULL, flags;
struct pglist_data *pgdat = zone->zone_pgdat;
unsigned long *usemap = NULL;
pgdat_resize_lock(pgdat, &flags);
if (ms->section_mem_map) {
usemap = ms->pageblock_flags;
memmap = sparse_decode_mem_map(ms->section_mem_map,
@ -781,11 +770,9 @@ void sparse_remove_one_section(struct zone *zone, struct mem_section *ms,
ms->section_mem_map = 0;
ms->pageblock_flags = NULL;
}
pgdat_resize_unlock(pgdat, &flags);
clear_hwpoisoned_pages(memmap + map_offset,
PAGES_PER_SECTION - map_offset);
free_section_usemap(memmap, usemap, altmap);
}
#endif /* CONFIG_MEMORY_HOTREMOVE */
#endif /* CONFIG_MEMORY_HOTPLUG */

33
net/core/dev.c
View file

@ -7752,6 +7752,22 @@ int __dev_set_mtu(struct net_device *dev, int new_mtu)
}
EXPORT_SYMBOL(__dev_set_mtu);
int dev_validate_mtu(struct net_device *dev, int new_mtu,
struct netlink_ext_ack *extack)
{
/* MTU must be positive, and in range */
if (new_mtu < 0 || new_mtu < dev->min_mtu) {
NL_SET_ERR_MSG(extack, "mtu less than device minimum");
return -EINVAL;
}
if (dev->max_mtu > 0 && new_mtu > dev->max_mtu) {
NL_SET_ERR_MSG(extack, "mtu greater than device maximum");
return -EINVAL;
}
return 0;
}
/**
* dev_set_mtu_ext - Change maximum transfer unit
* @dev: device
@ -7768,16 +7784,9 @@ int dev_set_mtu_ext(struct net_device *dev, int new_mtu,
if (new_mtu == dev->mtu)
return 0;
/* MTU must be positive, and in range */
if (new_mtu < 0 || new_mtu < dev->min_mtu) {
NL_SET_ERR_MSG(extack, "mtu less than device minimum");
return -EINVAL;
}
if (dev->max_mtu > 0 && new_mtu > dev->max_mtu) {
NL_SET_ERR_MSG(extack, "mtu greater than device maximum");
return -EINVAL;
}
err = dev_validate_mtu(dev, new_mtu, extack);
if (err)
return err;
if (!netif_device_present(dev))
return -ENODEV;
@ -8696,8 +8705,10 @@ int register_netdevice(struct net_device *dev)
goto err_uninit;
ret = netdev_register_kobject(dev);
if (ret)
if (ret) {
dev->reg_state = NETREG_UNREGISTERED;
goto err_uninit;
}
dev->reg_state = NETREG_REGISTERED;
__netdev_update_features(dev);

39
net/core/net-sysfs.c
View file

@ -928,25 +928,30 @@ static int rx_queue_add_kobject(struct net_device *dev, int index)
struct kobject *kobj = &queue->kobj;
int error = 0;
/* Kobject_put later will trigger rx_queue_release call which
* decreases dev refcount: Take that reference here
*/
dev_hold(queue->dev);
kobj->kset = dev->queues_kset;
error = kobject_init_and_add(kobj, &rx_queue_ktype, NULL,
"rx-%u", index);
if (error)
return error;
dev_hold(queue->dev);
goto err;
if (dev->sysfs_rx_queue_group) {
error = sysfs_create_group(kobj, dev->sysfs_rx_queue_group);
if (error) {
kobject_put(kobj);
return error;
}
if (error)
goto err;
}
kobject_uevent(kobj, KOBJ_ADD);
return error;
err:
kobject_put(kobj);
return error;
}
#endif /* CONFIG_SYSFS */
@ -1467,25 +1472,29 @@ static int netdev_queue_add_kobject(struct net_device *dev, int index)
struct kobject *kobj = &queue->kobj;
int error = 0;
/* Kobject_put later will trigger netdev_queue_release call
* which decreases dev refcount: Take that reference here
*/
dev_hold(queue->dev);
kobj->kset = dev->queues_kset;
error = kobject_init_and_add(kobj, &netdev_queue_ktype, NULL,
"tx-%u", index);
if (error)
return error;
dev_hold(queue->dev);
goto err;
#ifdef CONFIG_BQL
error = sysfs_create_group(kobj, &dql_group);
if (error) {
kobject_put(kobj);
return error;
}
if (error)
goto err;
#endif
kobject_uevent(kobj, KOBJ_ADD);
return 0;
err:
kobject_put(kobj);
return error;
}
#endif /* CONFIG_SYSFS */

13
net/core/rtnetlink.c
View file

@ -2875,8 +2875,17 @@ struct net_device *rtnl_create_link(struct net *net,
dev->rtnl_link_ops = ops;
dev->rtnl_link_state = RTNL_LINK_INITIALIZING;
if (tb[IFLA_MTU])
dev->mtu = nla_get_u32(tb[IFLA_MTU]);
if (tb[IFLA_MTU]) {
u32 mtu = nla_get_u32(tb[IFLA_MTU]);
int err;
err = dev_validate_mtu(dev, mtu, NULL);
if (err) {
free_netdev(dev);
return ERR_PTR(err);
}
dev->mtu = mtu;
}
if (tb[IFLA_ADDRESS]) {
memcpy(dev->dev_addr, nla_data(tb[IFLA_ADDRESS]),
nla_len(tb[IFLA_ADDRESS]));

4
net/ipv4/ip_tunnel.c
View file

@ -1203,10 +1203,8 @@ int ip_tunnel_init(struct net_device *dev)
iph->version = 4;
iph->ihl = 5;
if (tunnel->collect_md) {
dev->features |= NETIF_F_NETNS_LOCAL;
if (tunnel->collect_md)
netif_keep_dst(dev);
}
return 0;
}
EXPORT_SYMBOL_GPL(ip_tunnel_init);

1
net/ipv4/tcp.c
View file

@ -2507,6 +2507,7 @@ static void tcp_rtx_queue_purge(struct sock *sk)
{
struct rb_node *p = rb_first(&sk->tcp_rtx_queue);
tcp_sk(sk)->highest_sack = NULL;
while (p) {
struct sk_buff *skb = rb_to_skb(p);

3
net/ipv4/tcp_bbr.c
View file

@ -680,8 +680,7 @@ static void bbr_update_bw(struct sock *sk, const struct rate_sample *rs)
* bandwidth sample. Delivered is in packets and interval_us in uS and
* ratio will be <<1 for most connections. So delivered is first scaled.
*/
bw = (u64)rs->delivered * BW_UNIT;
do_div(bw, rs->interval_us);
bw = div64_long((u64)rs->delivered * BW_UNIT, rs->interval_us);
/* If this sample is application-limited, it is likely to have a very
* low delivered count that represents application behavior rather than

1
net/ipv4/tcp_input.c
View file

@ -3149,6 +3149,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, u32 prior_fack,
tp->retransmit_skb_hint = NULL;
if (unlikely(skb == tp->lost_skb_hint))
tp->lost_skb_hint = NULL;
tcp_highest_sack_replace(sk, skb, next);
tcp_rtx_queue_unlink_and_free(skb, sk);
}

1
net/ipv4/tcp_output.c
View file

@ -3165,6 +3165,7 @@ int tcp_send_synack(struct sock *sk)
if (!nskb)
return -ENOMEM;
INIT_LIST_HEAD(&nskb->tcp_tsorted_anchor);
tcp_highest_sack_replace(sk, skb, nskb);
tcp_rtx_queue_unlink_and_free(skb, sk);
__skb_header_release(nskb);
tcp_rbtree_insert(&sk->tcp_rtx_queue, nskb);

3
net/ipv4/udp.c
View file

@ -1305,7 +1305,8 @@ static void udp_rmem_release(struct sock *sk, int size, int partial,
if (likely(partial)) {
up->forward_deficit += size;
size = up->forward_deficit;
if (size < (sk->sk_rcvbuf >> 2))
if (size < (sk->sk_rcvbuf >> 2) &&
!skb_queue_empty(&up->reader_queue))
return;
} else {
size += up->forward_deficit;

3
net/ipv6/ip6_gre.c
View file

@ -1486,7 +1486,6 @@ static int ip6gre_tunnel_init_common(struct net_device *dev)
dev->mtu -= 8;
if (tunnel->parms.collect_md) {
dev->features |= NETIF_F_NETNS_LOCAL;
netif_keep_dst(dev);
}
ip6gre_tnl_init_features(dev);
@ -1914,7 +1913,6 @@ static void ip6gre_tap_setup(struct net_device *dev)
dev->needs_free_netdev = true;
dev->priv_destructor = ip6gre_dev_free;
dev->features |= NETIF_F_NETNS_LOCAL;
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
netif_keep_dst(dev);
@ -2223,7 +2221,6 @@ static void ip6erspan_tap_setup(struct net_device *dev)
dev->needs_free_netdev = true;
dev->priv_destructor = ip6gre_dev_free;
dev->features |= NETIF_F_NETNS_LOCAL;
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
netif_keep_dst(dev);

4
net/ipv6/ip6_tunnel.c
View file

@ -1882,10 +1882,8 @@ static int ip6_tnl_dev_init(struct net_device *dev)
if (err)
return err;
ip6_tnl_link_config(t);
if (t->parms.collect_md) {
dev->features |= NETIF_F_NETNS_LOCAL;
if (t->parms.collect_md)
netif_keep_dst(dev);
}
return 0;
}

4
net/ipv6/seg6_local.c
View file

@ -28,6 +28,7 @@
#include <net/addrconf.h>
#include <net/ip6_route.h>
#include <net/dst_cache.h>
#include <net/ip_tunnels.h>
#ifdef CONFIG_IPV6_SEG6_HMAC
#include <net/seg6_hmac.h>
#endif
@ -135,7 +136,8 @@ static bool decap_and_validate(struct sk_buff *skb, int proto)
skb_reset_network_header(skb);
skb_reset_transport_header(skb);
skb->encapsulation = 0;
if (iptunnel_pull_offloads(skb))
return false;
return true;
}

2
net/netfilter/ipset/ip_set_bitmap_gen.h
View file

@ -79,7 +79,7 @@ mtype_flush(struct ip_set *set)
if (set->extensions & IPSET_EXT_DESTROY)
mtype_ext_cleanup(set);
memset(map->members, 0, map->memsize);
bitmap_zero(map->members, map->elements);
set->elements = 0;
set->ext_size = 0;
}

6
net/netfilter/ipset/ip_set_bitmap_ip.c
View file

@ -40,7 +40,7 @@ MODULE_ALIAS("ip_set_bitmap:ip");
/* Type structure */
struct bitmap_ip {
void *members; /* the set members */
unsigned long *members; /* the set members */
u32 first_ip; /* host byte order, included in range */
u32 last_ip; /* host byte order, included in range */
u32 elements; /* number of max elements in the set */
@ -223,7 +223,7 @@ init_map_ip(struct ip_set *set, struct bitmap_ip *map,
u32 first_ip, u32 last_ip,
u32 elements, u32 hosts, u8 netmask)
{
map->members = ip_set_alloc(map->memsize);
map->members = bitmap_zalloc(elements, GFP_KERNEL | __GFP_NOWARN);
if (!map->members)
return false;
map->first_ip = first_ip;
@ -313,7 +313,7 @@ bitmap_ip_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
if (!map)
return -ENOMEM;
map->memsize = bitmap_bytes(0, elements - 1);
map->memsize = BITS_TO_LONGS(elements) * sizeof(unsigned long);
set->variant = &bitmap_ip;
if (!init_map_ip(set, map, first_ip, last_ip,
elements, hosts, netmask)) {

6
net/netfilter/ipset/ip_set_bitmap_ipmac.c
View file

@ -46,7 +46,7 @@ enum {
/* Type structure */
struct bitmap_ipmac {
void *members; /* the set members */
unsigned long *members; /* the set members */
u32 first_ip; /* host byte order, included in range */
u32 last_ip; /* host byte order, included in range */
u32 elements; /* number of max elements in the set */
@ -303,7 +303,7 @@ static bool
init_map_ipmac(struct ip_set *set, struct bitmap_ipmac *map,
u32 first_ip, u32 last_ip, u32 elements)
{
map->members = ip_set_alloc(map->memsize);
map->members = bitmap_zalloc(elements, GFP_KERNEL | __GFP_NOWARN);
if (!map->members)
return false;
map->first_ip = first_ip;
@ -364,7 +364,7 @@ bitmap_ipmac_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
if (!map)
return -ENOMEM;
map->memsize = bitmap_bytes(0, elements - 1);
map->memsize = BITS_TO_LONGS(elements) * sizeof(unsigned long);
set->variant = &bitmap_ipmac;
if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
kfree(map);

6
net/netfilter/ipset/ip_set_bitmap_port.c
View file

@ -34,7 +34,7 @@ MODULE_ALIAS("ip_set_bitmap:port");
/* Type structure */
struct bitmap_port {
void *members; /* the set members */
unsigned long *members; /* the set members */
u16 first_port; /* host byte order, included in range */
u16 last_port; /* host byte order, included in range */
u32 elements; /* number of max elements in the set */
@ -208,7 +208,7 @@ static bool
init_map_port(struct ip_set *set, struct bitmap_port *map,
u16 first_port, u16 last_port)
{
map->members = ip_set_alloc(map->memsize);
map->members = bitmap_zalloc(map->elements, GFP_KERNEL | __GFP_NOWARN);
if (!map->members)
return false;
map->first_port = first_port;
@ -248,7 +248,7 @@ bitmap_port_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
return -ENOMEM;
map->elements = elements;
map->memsize = bitmap_bytes(0, map->elements);
map->memsize = BITS_TO_LONGS(elements) * sizeof(unsigned long);
set->variant = &bitmap_port;
if (!init_map_port(set, map, first_port, last_port)) {
kfree(map);

29
net/netfilter/nf_tables_api.c
View file

@ -471,15 +471,28 @@ static inline u64 nf_tables_alloc_handle(struct nft_table *table)
static const struct nft_chain_type *chain_type[NFPROTO_NUMPROTO][NFT_CHAIN_T_MAX];
static const struct nft_chain_type *
__nft_chain_type_get(u8 family, enum nft_chain_types type)
{
if (family >= NFPROTO_NUMPROTO ||
type >= NFT_CHAIN_T_MAX)
return NULL;
return chain_type[family][type];
}
static const struct nft_chain_type *
__nf_tables_chain_type_lookup(const struct nlattr *nla, u8 family)
{
const struct nft_chain_type *type;
int i;
for (i = 0; i < NFT_CHAIN_T_MAX; i++) {
if (chain_type[family][i] != NULL &&
!nla_strcmp(nla, chain_type[family][i]->name))
return chain_type[family][i];
type = __nft_chain_type_get(family, i);
if (!type)
continue;
if (!nla_strcmp(nla, type->name))
return type;
}
return NULL;
}
@ -1050,11 +1063,8 @@ static void nf_tables_table_destroy(struct nft_ctx *ctx)
void nft_register_chain_type(const struct nft_chain_type *ctype)
{
if (WARN_ON(ctype->family >= NFPROTO_NUMPROTO))
return;
nfnl_lock(NFNL_SUBSYS_NFTABLES);
if (WARN_ON(chain_type[ctype->family][ctype->type] != NULL)) {
if (WARN_ON(__nft_chain_type_get(ctype->family, ctype->type))) {
nfnl_unlock(NFNL_SUBSYS_NFTABLES);
return;
}
@ -1511,7 +1521,10 @@ static int nft_chain_parse_hook(struct net *net,
hook->num = ntohl(nla_get_be32(ha[NFTA_HOOK_HOOKNUM]));
hook->priority = ntohl(nla_get_be32(ha[NFTA_HOOK_PRIORITY]));
type = chain_type[family][NFT_CHAIN_T_DEFAULT];
type = __nft_chain_type_get(family, NFT_CHAIN_T_DEFAULT);
if (!type)
return -EOPNOTSUPP;
if (nla[NFTA_CHAIN_TYPE]) {
type = nf_tables_chain_type_lookup(net, nla[NFTA_CHAIN_TYPE],
family, autoload);

3
net/netfilter/nft_osf.c
View file

@ -47,6 +47,9 @@ static int nft_osf_init(const struct nft_ctx *ctx,
struct nft_osf *priv = nft_expr_priv(expr);
int err;
if (!tb[NFTA_OSF_DREG])
return -EINVAL;
priv->dreg = nft_parse_register(tb[NFTA_OSF_DREG]);
err = nft_validate_register_store(ctx, priv->dreg, NULL,
NFT_DATA_VALUE, NFT_OSF_MAXGENRELEN);

2
net/sched/ematch.c
View file

@ -267,12 +267,12 @@ static int tcf_em_validate(struct tcf_proto *tp,
}
em->data = (unsigned long) v;
}
em->datalen = data_len;
}
}
em->matchid = em_hdr->matchid;
em->flags = em_hdr->flags;
em->datalen = data_len;
em->net = net;
err = 0;

6
net/x25/af_x25.c
View file

@ -765,6 +765,10 @@ static int x25_connect(struct socket *sock, struct sockaddr *uaddr,
if (sk->sk_state == TCP_ESTABLISHED)
goto out;
rc = -EALREADY; /* Do nothing if call is already in progress */
if (sk->sk_state == TCP_SYN_SENT)
goto out;
sk->sk_state = TCP_CLOSE;
sock->state = SS_UNCONNECTED;
@ -811,7 +815,7 @@ static int x25_connect(struct socket *sock, struct sockaddr *uaddr,
/* Now the loop */
rc = -EINPROGRESS;
if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK))
goto out_put_neigh;
goto out;
rc = x25_wait_for_connection_establishment(sk);
if (rc)

17
scripts/recordmcount.c
View file

@ -39,6 +39,10 @@
#define R_AARCH64_ABS64 257
#endif
#define R_ARM_PC24 1
#define R_ARM_THM_CALL 10
#define R_ARM_CALL 28
static int fd_map; /* File descriptor for file being modified. */
static int mmap_failed; /* Boolean flag. */
static char gpfx; /* prefix for global symbol name (sometimes '_') */
@ -415,6 +419,18 @@ is_mcounted_section_name(char const *const txtname)
#define RECORD_MCOUNT_64
#include "recordmcount.h"
static int arm_is_fake_mcount(Elf32_Rel const *rp)
{
switch (ELF32_R_TYPE(w(rp->r_info))) {
case R_ARM_THM_CALL:
case R_ARM_CALL:
case R_ARM_PC24:
return 0;
}
return 1;
}
/* 64-bit EM_MIPS has weird ELF64_Rela.r_info.
* http://techpubs.sgi.com/library/manuals/4000/007-4658-001/pdf/007-4658-001.pdf
* We interpret Table 29 Relocation Operation (Elf64_Rel, Elf64_Rela) [p.40]
@ -516,6 +532,7 @@ do_file(char const *const fname)
altmcount = "__gnu_mcount_nc";
make_nop = make_nop_arm;
rel_type_nop = R_ARM_NONE;
is_fake_mcount32 = arm_is_fake_mcount;
break;
case EM_AARCH64:
reltype = R_AARCH64_ABS64;