This was found by make randconfig
If the kernel .text is very large, the .fixup section branches
are too far away to be relocated correctly.
Use "sethi %hi(label), reg; jmpl reg + %lo(label); %g0" sequence
instead of the branch to fix this.
There is another case in switch_to() involving a branch, which
is fixed similarly.
Signed-off-by: David S. Miller <davem@davemloft.net>
We can't export verify_compat_iovec when CONFIG_NET is
disabled, and consequently the Solaris compat module
should also depend upon CONFIG_NET.
Signed-off-by: David S. Miller <davem@davemloft.net>
When CONFIG_BUG is turned off, the standard trick of:
switch (x) {
case X:
...
case Y:
...
default:
BUG();
};
to mark impossible cases does not work because BUG() evalutes
to nothing and thus GCC just sees a fallthrough code path.
Add an explicit KERN_ERR log message and a do_exit() to trap
this case.
Signed-off-by: David S. Miller <davem@davemloft.net>
It is unused since we went to an I-cache flush that solely used
the 'flush' instruction, and it's presence breaks the build
when PAGE_SIZE is 512KB.
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit fcd239d3d5.
I messed up, ia64 still uses these files in the current tree, and now
can not build the pci code, which all ia64 boxes seem to require :)
This fixes that mistake.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes dead code spotted by the Intel C Compiler.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
The ohci_enable() function shared between pci_probe and pci_resume
takes a host endian config rom, but ohci->config_rom is __be32. This
sets up the config rom in the wrong endian on little endian machine,
specifically, BusOptions will be initialized to a 0 max receive size.
This patch changes the way we reuse the config rom so that we avoid
this problem.
Signed-off-by: Kristian Hoegsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
The kernel has for random historical reasons allowed ptrace() accesses
to access (and insert) pages into the page cache above the size of the
file.
However, Nick broke that by mistake when doing the new fault handling in
commit 54cb8821de ("mm: merge populate and
nopage into fault (fixes nonlinear)". The breakage caused a hang with
gdb when trying to access the invalid page.
The ptrace "feature" really isn't worth resurrecting, since it really is
wrong both from a portability _and_ from an internal page cache validity
standpoint. So this removes those old broken remnants, and fixes the
ptrace() hang in the process.
Noticed and bisected by Duane Griffin, who also supplied a test-case
(quoth Nick: "Well that's probably the best bug report I've ever had,
thanks Duane!").
Cc: Duane Griffin <duaneg@dghda.com>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This fixes a build problem with GPIOs on DaVinci. Since it inlines
operations for on-chip GPIOs, it needs some headers to support those
direct register accesses. Those headers won't be included on other
platforms, since they don't have that optimization.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix assignment instead of condition
Signed-off-by: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Someone forgot to use 'ls include/asm-*/flat.h' or
'grep -r flat_get_addr_from_rp .' to find all architectures which
may be affected by their change. Fix the fall out.
Noticed-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Resolve:
CC arch/arm/mach-pxa/time.o
arch/arm/mach-pxa/time.c: In function `pxa_osmr0_set_mode':
arch/arm/mach-pxa/time.c:154: warning: enumeration value `CLOCK_EVT_MODE_RESUME' not handled in switch
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Jon Eibertzon writes:
> We have noticed that the I-cache is disabled while waiting for
> interrupt in cpu_arm926_do_idle in arch/arm/mm/proc-arm926.S
> and we are curious to know why, because this causes us a great
> performance hit when executing in FIQ-handlers. Is it assumed
> here that every individual FIQ-handler re-enables the I-cache?
The I-cache disable is an errata workaround, so the solution is to
disable FIQs across the section with the I-cache disabled.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix:
WARNING: at arch/arm/mach-pxa/clock.c:69 clk_disable()
[<c002d7c8>] (dump_stack+0x0/0x14) from [<c00334f4>] (clk_disable+0x34/0xa0)
[<c00334c0>] (clk_disable+0x0/0xa0) from [<c028a43c>] (pxamci_set_ios+0x74/0xf0)
[<c028a3c8>] (pxamci_set_ios+0x0/0xf0) from [<c0281548>] (mmc_power_off+0x90/0x9c)
[<c02814b8>] (mmc_power_off+0x0/0x9c) from [<c0281a30>] (mmc_start_host+0x18/0x28)
[<c0281a18>] (mmc_start_host+0x0/0x28) from [<c02825a0>] (mmc_add_host+0xe8/0x104)
[<c02824b8>] (mmc_add_host+0x0/0x104) from [<c028a7d0>] (pxamci_probe+0x24c/0x2f4)
[<c028a584>] (pxamci_probe+0x0/0x2f4) from [<c01e5948>] (platform_drv_probe+0x20/0x24)
...
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix:
CC arch/arm/mach-netx/xc.o
arch/arm/mach-netx/xc.c: In function 'request_xc':
arch/arm/mach-netx/xc.c:192: error: 'struct kobject' has no member named 'name'
arch/arm/mach-netx/xc.c:196: error: 'struct kobject' has no member named 'name'
arch/arm/mach-netx/xc.c:200: error: 'struct kobject' has no member named 'name'
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix:
CC drivers/serial/atmel_serial.o
drivers/serial/atmel_serial.c: In function 'atmel_serial_suspend':
drivers/serial/atmel_serial.c:924: error: implicit declaration of function 'at91_suspend_entering_slow_clock'
Acked-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix:
CC drivers/scsi/arm/powertec.o
In file included from drivers/scsi/arm/powertec.c:29:
drivers/scsi/arm/scsi.h: In function 'next_SCp':
drivers/scsi/arm/scsi.h:42: error: 'struct scatterlist' has no member named 'page'
drivers/scsi/arm/scsi.h: In function 'init_SCp':
drivers/scsi/arm/scsi.h:80: error: 'struct scatterlist' has no member named 'page'
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix:
arch/arm/mach-omap1/built-in.o: In function `h2_init':
board-h2.c:(.init.text+0xbb4): undefined reference to `i2c_register_board_info'
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix a typo in include/asm-arm/plat-s3c/regs-nand.h.
Signed-off-by: Matt Reimer <mreimer@vpop.net>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
It is referenced both from __devinit code (ivtv_probe) and
normal .text (ivtv_process_eeprom), and therefore cannot
be discarded via __devexit.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On PowerPC allmodconfig build we get this:
net/key/af_key.c:400: warning: comparison is always false due to limited range of data type
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
add SubmittingPatches to Documentation/ja_JP
fix typo in SubmittingPatches
Driver Core: fix bug in device_rename() for SYSFS_DEPRECATED=y
sysfs: make sysfs_{get,put}_active() static
kobject: check for duplicate names in kobject_rename
Driver core: remove class_device_*_bin_file
This patch adds SubmittingPatches translated into Japanese to
Documentation/ja_JP directory.
I attach the patch because there is a possibility that MUA
will change the character encoding sometimes.
Signed-off-by: Keiichi KII <k-keiichi@bx.jp.nec.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This should fix the sysfs warnings that renaming network devices is
causing to show up with CONFIG_SYSFS_DEPRECATED=y
The code just shouldn't run if class devices are real directories, it's
an update for the symlink in the class directory. Nobody noticed that as
long as the creation of sysfs files silently failed, and we both missed
it before the merge, because we don't run SYSFS_DEPRECATED=y.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: David Miller <davem@davemloft.net>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This should catch any duplicate names before we try to tell sysfs to
rename the object. This happens a lot with older versions of udev and
the network rename scripts.
Cc: David Miller <davem@davemloft.net>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
These functions are not used by anyone, so remove them from the tree.
The class_device code will be removed soon anyway, so no future users
will ever be possible.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It wants string functions like memcpy() for inline
routines, and these define userland interfaces.
The only clean way to deal with this is to simply
put linux/string.h into unifdef-y and have it
include <string.h> when not-__KERNEL__.
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove a spurious call to kfree_skb() in the connector rx_skb handler.
This fixes a regression introduced by the '[NET]: make netlink user ->
kernel interface synchronious' patch (cd40b7d398)
Signed-off-by: Michal Januszewski <spock@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
A stray semicolon slipped in the patch that updated dev_ifname32 to
not be inline, causing it to always return -EFAULT. This fixes it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes scatterlist corruptions added by
commit 68e3f5dd4d
[CRYPTO] users: Fix up scatterlist conversion errors
The issue is that the code calls sg_mark_end() which clobbers the
sg_page() pointer of the final scatterlist entry.
The first part fo the fix makes skb_to_sgvec() do __sg_mark_end().
After considering all skb_to_sgvec() call sites the most correct
solution is to call __sg_mark_end() in skb_to_sgvec() since that is
what all of the callers would end up doing anyways.
I suspect this might have fixed some problems in virtio_net which is
the sole non-crypto user of skb_to_sgvec().
Other similar sg_mark_end() cases were converted over to
__sg_mark_end() as well.
Arguably sg_mark_end() is a poorly named function because it doesn't
just "mark", it clears out the page pointer as a side effect, which is
what led to these bugs in the first place.
The one remaining plain sg_mark_end() call is in scsi_alloc_sgtable()
and arguably it could be converted to __sg_mark_end() if only so that
we can delete this confusing interface from linux/scatterlist.h
Signed-off-by: David S. Miller <davem@davemloft.net>
It's under CONFIG_IP_VS_LBLCR_DEBUG option which never existed.
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
The file /proc/net/if_inet6 is removed twice.
First time in:
inet6_exit
->addrconf_cleanup
And followed a few lines after by:
inet6_exit
-> if6_proc_exit
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a network namespace reference is held by a network subsystem,
and when this reference is decremented in a rcu update callback, we
must ensure that there is no more outstanding rcu update before
trying to free the network namespace.
In the normal case, the rcu_barrier is called when the network namespace
is exiting in the cleanup_net function.
But when a network namespace creation fails, and the subsystems are
undone (like the cleanup), the rcu_barrier is missing.
This patch adds the missing rcu_barrier.
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Point 1:
The unregistering of a network device schedule a netdev_run_todo.
This function calls dev->destructor when it is set and the
destructor calls free_netdev.
Point 2:
In the case of an initialization of a network device the usual code
is:
* alloc_netdev
* register_netdev
-> if this one fails, call free_netdev and exit with error.
Point 3:
In the register_netdevice function at the later state, when the device
is at the registered state, a call to the netdevice_notifiers is made.
If one of the notification falls into an error, a rollback to the
registered state is done using unregister_netdevice.
Conclusion:
When a network device fails to register during initialization because
one network subsystem returned an error during a notification call
chain, the network device is freed twice because of fact 1 and fact 2.
The second free_netdev will be done with an invalid pointer.
Proposed solution:
The following patch move all the code of unregister_netdevice *except*
the call to net_set_todo, to a new function "rollback_registered".
The following functions are changed in this way:
* register_netdevice: calls rollback_registered when a notification fails
* unregister_netdevice: calls rollback_register + net_set_todo, the call
order to net_set_todo is changed because it is the
latest now. Since it justs add an element to a list
that should not break anything.
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/fmr_pool: Stop ib_fmr threads from contributing to load average
IB/ipath: Fix incorrect use of sizeof on msg buffer (function argument)
IB/ipath: Limit length checksummed in eeprom
IB/ipath: Fix a race where s_last is updated without lock held
IB/mlx4: Lock SQ lock in mlx4_ib_post_send()
IPoIB/cm: Fix receive QP cleanup
I noticed my machine was at a constant load average of 1. This was
because ib_create_fmr_pool calls kthread_create but does not
immediately wake the thread up.
Change to using kthread_run so we enter ib_fmr_cleanup_thread(), set
TASK_INTERRUPTIBLE, then go to sleep.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Fix links to files in Documentation/* in various Kconfig files
Signed-off-by: Dirk Hohndel <hohndel@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit commit 65b8291c40 ("dio: invalidate
clean pages before dio write") introduced a bug which stopped dio from
ever invalidating the page cache after writes. It still invalidated it
before writes so most users were fine.
Karl Schendel reported ( http://lkml.org/lkml/2007/10/26/481 ) hitting
this bug when he had a buffered reader immediately reading file data
after an O_DIRECT wirter had written the data. The kernel issued
read-ahead beyond the position of the reader which overlapped with the
O_DIRECT writer. The failure to invalidate after writes caused the
reader to see stale data from the read-ahead.
The following patch is originally from Karl. The following commentary
is his:
The below 3rd try takes on your suggestion of just invalidating
no matter what the retval from the direct_IO call. I ran it
thru the test-case several times and it has worked every time.
The post-invalidate is probably still too early for async-directio,
but I don't have a testcase for that; just sync. And, this
won't be any worse in the async case.
I added a test to the aio-dio-regress repository which mimics Karl's IO
pattern. It verifed the bad behaviour and that the patch fixed it. I
agree with Karl, this still doesn't help the case where a buffered
reader follows an AIO O_DIRECT writer. That will require a bit more
work.
This gives up on the idea of returning EIO to indicate to userspace that
stale data remains if the invalidation failed.
Signed-off-by: Zach Brown <zach.brown@oracle.com>
Cc: Karl Schendel <kschendel@datallegro.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Leonid Ananiev <leonid.i.ananiev@linux.intel.com>
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Fix incorrect return value from ia64_setup_msi_irq()
[IA64] arch/ia64/sn/kernel/mca.c: undo lock when sn_oemdata can't be extended
[IA64] update sn2 defconfig to 64kb pages
[IA64] fix typo in per_cpu_offset
[IA64] /proc/cpuinfo "physical id" field cleanups
[IA64] vDSO vs --build-id
[IA64] check-segrel.lds vs --build-id
[IA64] vmcore_find_descriptor_size should be in __init
[IA64] ia64/mm/init.c: fix section mismatches
