Commit graph

63439 commits

Author SHA1 Message Date
Randy Dunlap
c8facbb621 various doc/kernel-parameters fixes
- tell what APIC (by request), MTD, & PARIDE mean
- correct some source file names
- remove IA64 "llsc*=" (seems to have been removed from source tree)
- removel SCSI "53c7xx=" (driver already removed)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:37 -07:00
Grant Likely
f53161d108 xilinxfb: Don't bail if the xilinxfb platform device doesn't have any pdata
Lack of pdata is not a fatal omission.  The driver can still be used even
if we do not know the screen dimensions.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Andrei Konovalov <akonovalov@ru.mvista.com>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:37 -07:00
Grant Likely
3f5b85d14e xilinxfb:Remove __initdata from xilinx_fb_fix and xilinx_fb_var
xilinxfb_drv_probe refers to both tables, but it cannot be initdata.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Andrei Konovalov <akonovalov@ru.mvista.com>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:37 -07:00
Ben Dooks
aff39a852e s3c2410fb: fix s3c2410 compilation
The implicit mapping has been removed from the arch
as this should be handled in the driver, this patch
fixes the s3c2410_fb driver to ioremap() the necessary
registers.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Acked-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:37 -07:00
Antonino A. Daplas
1692b37c99 fbdev: Fix logo if logo depth is less than framebuffer depth
The VGA16 logo (bpp = 4) and monochrome logo (bpp = 1) do not contain any
color information (no CLUT).  If the fb depth is > logo depth, these logo's
will not properly display. Fix by using the console palette instead of
creating a new one.

Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:37 -07:00
Antonino A. Daplas
c81f717cb9 fbcon: Fix typo and bogus logic in get_default_font
Reported in: Bugzilla Bug 8727

Fix typo and bogus logic in get_default_font(). The bug results in
get_default_font() returning a font that may not be displayed properly by a
framebuffer driver.

Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:37 -07:00
Paul Fulghum
bb029c67e4 synclink_gt: fix transmit DMA stall
Fix transmit DMA stall when write() called in window after previous
transmit DMA completes but before previous serial transmission completes.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:37 -07:00
Atsushi Nemoto
ddb437b7f7 serial_txx9: fix printk format mismatch
Since the commit 4f640efb31, "%lx" is not
suitable for p->mapbase (resource_size_t) in 32-bit.  This patch fixes a
compiler warning caused by the mismatch.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:37 -07:00
Randy Dunlap
e6b3322084 x86-64: Calgary: fix section mismatch warnings in tce
Fix section mismatch warnings:
these functions are called only from __init functions.

WARNING: vmlinux.o(.text+0x1861c): Section mismatch: reference to .init.text:free_bootmem (between 'free_tce_table' and 'build_tce_table')
WARNING: vmlinux.o(.text+0x187e5): Section mismatch: reference to .init.text:__alloc_bootmem_low (between 'alloc_tce_table' and 'kretprobe_trampoline_holder')

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:37 -07:00
David Rientjes
a5e58a6142 oom: print points as unsigned long
In badness(), the automatic variable 'points' is unsigned long.  Print it
as such.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:36 -07:00
Thomas Hommel
c8ed39ebe0 rtc-dev: Make RTC driver return ENOTTY instead of ENOIOCTLCMD
Prevent the RTC driver from returning ENOIOCTLCMD to userspace.

Signed-off-by: Thomas Hommel <thomas.hommel@gefanuc.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:36 -07:00
Mel Gorman
a8bbf72ab9 Do not trigger OOM-killer for high-order allocation failures
out_of_memory() may be called when an allocation is failing and the direct
reclaim is not making any progress.  This does not take into account the
requested order of the allocation.  If the request if for an order larger
than PAGE_ALLOC_COSTLY_ORDER, it is reasonable to fail the allocation
because the kernel makes no guarantees about those allocations succeeding.

This false OOM situation can occur if a user is trying to grow the hugepage
pool in a script like;

#!/bin/bash
REQUIRED=$1
echo 1 > /proc/sys/vm/hugepages_treat_as_movable
echo $REQUIRED > /proc/sys/vm/nr_hugepages
ACTUAL=`cat /proc/sys/vm/nr_hugepages`
while [ $REQUIRED -ne $ACTUAL ]; do
	echo Huge page pool at $ACTUAL growing to $REQUIRED
	echo $REQUIRED > /proc/sys/vm/nr_hugepages
	ACTUAL=`cat /proc/sys/vm/nr_hugepages`
	sleep 1
done

This is a reasonable scenario when ZONE_MOVABLE is in use but triggers OOM
easily on 2.6.23-rc1. This patch will fail an allocation for an order above
PAGE_ALLOC_COSTLY_ORDER instead of killing processes and retrying.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:36 -07:00
Ben Dooks
252e48389e s3c2410: fixup after arch moves
Fixup the changes from moving around the arch support for s3c24xx based
systems.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:36 -07:00
Neil Brown
a512cd5dfe Make Bruce Fields (co-)maintainer of kNFSDd
Make Bruce Fields (co-)maintainer of kNFSDd

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:36 -07:00
Fenghua Yu
45c876bf12 Fix uninitialized local variable "covered" in i386 acpi-cpufreq driver
The local variable "covered" is used without initialization in i386
acpi-cpufreq driver.  The initial value of covered should be 0.  The bug
will cause memory leak when hit.  The following patch fixes this bug.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:36 -07:00
Randy Dunlap
7f8e00f2b9 update dontdiff file
Updates based on recent .gitignore updates:

*.o.*: Says Alexey Dobriyan:
These are presumably temporary gcc files, which aren't interesting.

setup.bin, setup.elf: new x86 boot code files (from Matthew Wilcox)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:36 -07:00
Alexey Dobriyan
96918a35a0 .gitignore update
Somehow I ended up with the following in tree:

	$ git status
		...
	# Untracked files:
	#   (use "git add <file>..." to include in what will be committed)
	#
	#       fs/proc/root.o.FuMxJQ
	#       net/ipv4/tcp_minisocks.o.geCDYR

These are presumably temporary gcc files, which aren't interesting.

Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:36 -07:00
David Howells
2e92a3baee NOMMU: Fix SYSV IPC SHM
Fix the SYSV IPC SHM to work with the changes applied by the new fault handler
patches when CONFIG_MMU=n.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:36 -07:00
Thomas Graf
8072f085d7 [RTNETLINK]: Fix warning for !CONFIG_KMOD
replay label is unused otherwise.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 14:13:50 -07:00
Mariusz Kozlowski
376407039c [IPV4] ip_options.c: kmalloc + memset conversion to kzalloc
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 14:06:45 -07:00
Mariusz Kozlowski
f87966541e [DECNET]: kmalloc + memset conversion to kzalloc
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 14:05:56 -07:00
Mariusz Kozlowski
50aa485e1a [BBC_I2C]: kmalloc + memset conversion to kzalloc
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 14:04:57 -07:00
Mariusz Kozlowski
916e89fdd1 [BBC_ENVCTRL]: kmalloc + memset conversion to kzalloc
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 14:04:19 -07:00
Matthew Wilcox
313674afa8 [NET]: ethtool_perm_addr only has one implementation
All drivers implement ethtool get_perm_addr the same way -- by calling
the generic function.  So we can inline the generic function into the
caller and avoid going through the drivers.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 14:00:29 -07:00
Matthew Wilcox
61a44b9c4b [NET]: ethtool ops are the only way
During the transition to the ethtool_ops way of doing things, we supported
calling the device's ->do_ioctl method to allow unconverted drivers to
continue working.  Those days are long behind us, all in-tree drivers
use the ethtool_ops way, and so we no longer need to support this.

The bonding driver is the biggest beneficiary of this; it no longer
needs to call ioctl() as a fallback if ethtool_ops aren't supported.

Also put a proper copyright statement on ethtool.c.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 14:00:02 -07:00
Florian Zumbiehl
f1543f8b83 [PPPOE]: Improve hashing function in hash_item().
The new code produces the same results as the old version and is
~ 3 to 6 times faster for 4-bit hashes on the CPUs I tested.

Signed-off-by: Florian Zumbiehl <florz@florz.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 13:47:57 -07:00
H. Peter Anvin
ff659d13ed [x86 setup] EDD: Fix the computation of the MBR sector buffer
Some BIOSes require that sector buffers not cross 64K
boundaries.  As a result, we compute a dynamic address on the
setup heap.  Unfortunately, this address computation was just
totally wrong.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-07-31 16:18:05 -04:00
H. Peter Anvin
8b608d2f5a [x86 setup] Newline after setup signature failure message
End the "No setup signature found..." with a newline (the puts
routine will automatically add a carriage return.)

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-07-31 16:18:05 -04:00
Randy Dunlap
8218d029c5 x86 boot code comments typos
Fix comments typos in new x86 boot code.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-07-31 16:18:05 -04:00
Joakim Koskela
48b8d78315 [XFRM]: State selection update to use inner addresses.
This patch modifies the xfrm state selection logic to use the inner
addresses where the outer have been (incorrectly) used. This is
required for beet mode in general and interfamily setups in both
tunnel and beet mode.

Signed-off-by: Joakim Koskela <jookos@gmail.com>
Signed-off-by: Herbert Xu     <herbert@gondor.apana.org.au>
Signed-off-by: Diego Beltrami <diego.beltrami@gmail.com>
Signed-off-by: Miika Komu     <miika@iki.fi>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:33 -07:00
Herbert Xu
196b003620 [IPSEC]: Ensure that state inner family is set
Similar to the issue we had with template families which
specified the inner families of policies, we need to set
the inner families of states as the main xfrm user Openswan
leaves it as zero.

af_key is unaffected because the inner family is set by it
and not the KM.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:32 -07:00
Ilpo Järvinen
b8ed601cef [TCP]: Bidir flow must not disregard SACK blocks for lost marking
It's possible that new SACK blocks that should trigger new LOST
markings arrive with new data (which previously made is_dupack
false). In addition, I think this fixes a case where we get
a cumulative ACK with enough SACK blocks to trigger the fast
recovery (is_dupack would be false there too).

I'm not completely pleased with this solution because readability
of the code is somewhat questionable as 'is_dupack' in SACK case
is no longer about dupacks only but would mean something like
'lost_marker_work_todo' too... But because of Eifel stuff done
in CA_Recovery, the FLAG_DATA_SACKED check cannot be placed to
the if statement which seems attractive solution. Nevertheless,
I didn't like adding another variable just for that either... :-)

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:31 -07:00
Ilpo Järvinen
1e757f9996 [TCP]: Fix ratehalving with bidirectional flows
Actually, the ratehalving seems to work too well, as cwnd is
reduced on every second ACK even though the packets in flight
remains unchanged. Recoveries in a bidirectional flows suffer
quite badly because of this, both NewReno and SACK are affected.

After this patch, rate halving is performed for ACK only if
packets in flight was supposedly changed too.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:30 -07:00
James Chapman
143cf35324 [PPPOL2TP]: Add CONFIG_INET Kconfig dependency.
PPPOL2TP uses UDP so it obviously depends on CONFIG_INET.

Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:29 -07:00
David S. Miller
a309bb072b [NET]: Page offsets and lengths need to be __u32.
Based upon a report from Stephen Rothwell.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:28 -07:00
Adrian Bunk
131116989b [AF_UNIX]: Make code static.
The following code can now become static:
- struct unix_socket_table
- unix_table_lock

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:27 -07:00
Adrian Bunk
1a3a206f7f [NETFILTER]: Make nf_ct_ipv6_skip_exthdr() static.
nf_ct_ipv6_skip_exthdr() can now become static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:26 -07:00
Adrian Bunk
fea1ab0fcf [PKTGEN]: make get_ipsec_sa() static and non-inline
Non-static inline code usually doesn't makes sense.

In this case making is static and non-inline is the correct solution.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:25 -07:00
Florian Zumbiehl
8aeca8fea5 [PPPoE]: move lock_sock() in pppoe_sendmsg() to the right location
and the last one for now: Acquire the sock lock in pppoe_sendmsg()
before accessing the sock - and in particular avoid releasing the lock
even though it hasn't been acquired.

Signed-off-by: Florian Zumbiehl <florz@florz.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:23 -07:00
Florian Zumbiehl
86c1dcfc96 [PPPoX/E]: return ENOTTY on unknown ioctl requests
here another patch for the PPPoX/E code that makes sure that ENOTTY is
returned for unknown ioctl requests rather than 0 (and removes another
unneeded initializer which I didn't bother creating a separate patch for).

Signed-off-by: Florian Zumbiehl <florz@florz.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:22 -07:00
Dave Johnson
c61a7d10ef [IPV6]: ipv6_addr_type() doesn't know about RFC4193 addresses.
ipv6_addr_type() doesn't check for 'Unique Local IPv6 Unicast
Addresses' (RFC4193) and returns IPV6_ADDR_RESERVED for that range.

SCTP uses this function and will fail bind() and connect() calls that
use RFC4193 addresses, SCTP will also ignore inbound connections from
RFC4193 addresses if listening on IPV6_ADDR_ANY.

There may be other users of ipv6_addr_type() that could also have
problems.

Signed-off-by: Dave Johnson <djohnson@sw.starentnetworks.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:21 -07:00
Peter P Waskiewicz Jr
0773192b0f [NET]: Fix prio_tune() handling of root qdisc.
Fix the check in prio_tune() to see if sch->parent is TC_H_ROOT instead of
sch->handle to load or reject the qdisc for multiqueue devices.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:20 -07:00
Patrick McHardy
ffc8fefaf2 [NET]: Fix sch_api to properly set sch->parent on the root.
Fix sch_api to correctly set sch->parent for both ingress and egress
qdiscs in qdisc_create().

Signed-off-by: Patrick McHardy <trash@kaber.net>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:19 -07:00
Patrick McHardy
bdba91ec70 [NET_SCHED]: Fix prio/ingress classification logic error
Fix handling of empty or completely non-matching filter chains. In
that case -1 is returned and tcf_result is uninitialized, the
qdisc should fall back to default classification in that case.

Noticed by PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:18 -07:00
Herbert Xu
20283d84c7 [IPV6]: Remove circular dependency on if_inet6.h
net/if_inet6.h includes linux/ipv6.h which also tries to include
net/if_inet6.h.  Since the latter only needs it for forward
declarations, we can fix this by adding the declarations.

A number of files are implicitly including net/if_inet6.h through
linux/ipv6.h.  They also use net/ipv6.h so this patch includes
net/if_inet6.h there.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:17 -07:00
Herbert Xu
b217d616a1 [IPV4/IPV6]: Fail registration if inet device construction fails
Now that netdev notifications can fail, we can use this to signal
errors during registration for IPv4/IPv6.  In particular, if we
fail to allocate memory for the inet device, we can fail the netdev
registration.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:16 -07:00
Herbert Xu
fcc5a03ac4 [NET]: Allow netdev REGISTER/CHANGENAME events to fail
This patch adds code to allow errors to be passed up from event
handlers of NETDEV_REGISTER and NETDEV_CHANGENAME.  It also adds
the notifier_from_errno/notifier_to_errnor helpers to pass the
errno value up to the notifier caller.

If an error is detected when a device is registered, it causes
that operation to fail.  A NETDEV_UNREGISTER will be sent to
all event handlers.

Similarly if NETDEV_CHANGENAME fails the original name is restored
and a new NETDEV_CHANGENAME event is sent.

As such all event handlers must be idempotent with respect to
these events.

When an event handler is registered NETDEV_REGISTER events are
sent for all devices currently registered.  Should any of them
fail, we will send NETDEV_GOING_DOWN/NETDEV_DOWN/NETDEV_UNREGISTER
events to that handler for the devices which have already been
registered with it.  The handler registration itself will fail.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:15 -07:00
Herbert Xu
aeed9e82cd [NET] loopback: Panic if registration fails
Because IPv4 and IPv6 both depend on the presence of the loopback
device to function, failure in registration the loopback device should
be fatal.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:14 -07:00
Herbert Xu
7f988eab57 [NET]: Take dev_base_lock when moving device name hash list entry
When we added name-based hashing the dev_base_lock was designated as the
lock to take when changing the name hash list.  Unfortunately, because
it was a preexisting lock that just happened to be taken in the right
spots we neglected to take it in dev_change_name.

The race can affect calles of __dev_get_by_name that do so without taking
the RTNL.  They may end up walking down the wrong hash chain and end up
missing the device that they're looking for.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:13 -07:00
Herbert Xu
7ce1b0edcb [NET]: Call uninit if necessary in register_netdevice
This patch makes register_netdevice call dev->uninit if the regsitration
fails after dev->init has completed successfully.  Very few drivers use
the init/uninit calls but at least one (drivers/net/wan/sealevel.c) may
leak without this change.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-31 02:28:12 -07:00