Jiri Bohac [Thu, 12 Jun 2008 22:21:51 +0000 (15:21 -0700)]
console keyboard mapping broken by
04c71976
Several console keyboard maps are broken since
commit
04c71976500352d02f60616d2b960267d8c5fe24
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Tue Oct 16 23:27:04 2007 -0700
unicode diacritics support
because that changeset made k_self consider the value as a latin1
character when in Unicode mode, which is wrong; k_self should still take
the console map into account.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Menage [Thu, 12 Jun 2008 22:21:49 +0000 (15:21 -0700)]
/proc/sysvipc/shm: fix 32-bit truncation of segment sizes
sysvipc_shm_proc_show() picks between format strings (based on the
expected maximum length of a SHM segment) in a way that prevents gcc from
performing format checks on the seq_printf() parameters. This hid two
format errors - shp->shm_segsz and shp->shm_nattach are both unsigned
long, but were being printed as unsigned int and signed int respectively.
This leads to 32-bit truncation of SHM segment sizes reported in
/proc/sysvipc/shm. (And for nattach, but that's less of a problem for
most users).
This patch makes the format string directly visible to gcc's format
specifier checker, and fixes the two broken format specifiers.
Signed-off-by: Paul Menage <menage@google.com>
Cc: Nadia Derbey <Nadia.Derbey@bull.net>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Pierre Peiffer <peifferp@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Hansen [Thu, 12 Jun 2008 22:21:48 +0000 (15:21 -0700)]
pagemap: fix large pages in pagemap
We were walking right into huge page areas in the pagemap walker, and
calling the pmds pmd_bad() and clearing them.
That leaked huge pages. Bad.
This patch at least works around that for now. It ignores huge pages in
the pagemap walker for the time being, and won't leak those pages.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Hansen [Thu, 12 Jun 2008 22:21:47 +0000 (15:21 -0700)]
pagemap: pass mm into pagewalkers
We need this at least for huge page detection for now, because powerpc
needs the vm_area_struct to be able to determine whether a virtual address
is referring to a huge page (its pmd_huge() doesn't work).
It might also come in handy for some of the other users.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Philippe De Muyter [Thu, 12 Jun 2008 22:21:46 +0000 (15:21 -0700)]
driver/char/generic_nvram: fix banner
The generic nvram driver announces itself as
'Macintosh non-volatile memory driver'
instead of 'Generic non-volatile memory driver'. Fix that.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Philippe De Muyter [Thu, 12 Jun 2008 22:21:45 +0000 (15:21 -0700)]
drivers/video/cirrusfb: fix RAM address printk
In the cirrusfb driver, the RAM address printk has a superfluous 'x' that
could be interpreted as "don't care", while it is actually a typo. Fix
that.
[akpm@linux-foundation.org: join the two printk strings to make it atomic]
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stephen Hemminger [Thu, 12 Jun 2008 22:21:45 +0000 (15:21 -0700)]
intel_rng: make device not found a warning
Since many distros load this driver by default (throw it against the wall
and see what sticks method). Change the error message severity level to
avoid alarming users. Isn't it annoying when users actually read the
error logs...
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Cc: Michael Buesch <mb@bu3sch.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Julia Lawall [Thu, 12 Jun 2008 22:21:43 +0000 (15:21 -0700)]
drivers/isdn/sc/ioctl.c: add missing kfree
spid has been allocated in this function and so should be freed before
leaving it, as in the other error handling cases.
The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
@r exists@
expression E,E1;
statement S;
position p1,p2,p3;
@@
E =@p1 \(kmalloc\|kcalloc\|kzalloc\)(...)
... when != E = E1
if (E == NULL || ...) S
... when != E = E1
if@p2 (...) {
... when != kfree(E)
}
... when != E = E1
kfree@p3(E);
@forall@
position r.p2;
expression r.E;
int E1 != 0;
@@
* if@p2 (...) {
... when != kfree(E)
when strict
return E1; }
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chuck Ebbert [Thu, 12 Jun 2008 22:21:42 +0000 (15:21 -0700)]
mmc: wbsd: initialize tasklets before requesting interrupt
With CONFIG_DEBUG_SHIRQ set we will get an interrupt as soon as we
allocate one. Tasklets may be scheduled in the interrupt handler but they
will be initialized after the handler returns, causing a BUG() in
kernel/softirq.c when they run.
Should fix this Fedora bug report:
https://bugzilla.redhat.com/show_bug.cgi?id=449817
Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Miao [Thu, 12 Jun 2008 22:21:41 +0000 (15:21 -0700)]
MAINTAINERS: update maintainership of pxa2xx/pxa3xx
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Dike [Thu, 12 Jun 2008 22:21:41 +0000 (15:21 -0700)]
uml: work around broken host PTRACE_SYSEMU
Fedora broke PTRACE_SYSEMU again, and UML crashes as a result when it
doesn't need to. This patch makes the PTRACE_SYSEMU check fail gracefully
and makes UML fall back to PTRACE_SYSCALL.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Dike [Thu, 12 Jun 2008 22:21:40 +0000 (15:21 -0700)]
uml: remove include of asm/user.h
I allowed an include of asm/user.h to sneak back in. This patch replaces
it with sys/user.h.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Haavard Skinnemoen [Thu, 12 Jun 2008 22:21:38 +0000 (15:21 -0700)]
rtc-at32ap700x: fix bug in at32_rtc_readalarm()
alarm->pending indicates whether there's an alarm that has actually been
triggered, not whether we're waiting for it. alarm->enabled indicates
that.
Also add missing locking around reading the RTC registers.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
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>
Philippe De Muyter [Thu, 12 Jun 2008 22:21:36 +0000 (15:21 -0700)]
m68knommu: init coldfire timer TRR with n - 1, not n
The coldfire timer must be initialised to n - 1 if we want it to count n
cycles between each tick interrupt. This was already fixed, but has been
lost with the conversion to GENERIC_TIMER.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Acked-by: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Masami Hiramatsu [Thu, 12 Jun 2008 22:21:35 +0000 (15:21 -0700)]
kprobes: fix error checking of batch registration
Fix error checking routine to catch an error which occurs in first
__register_*probe().
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: David Miller <davem@davemloft.net>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Miller [Thu, 12 Jun 2008 22:21:34 +0000 (15:21 -0700)]
cciss: add new hardware support
Add support for the next generation of HP Smart Array SAS/SATA
controllers. Shipping date is late Fall 2008.
Bump the driver version to 3.6.20 to reflect the new hardware support from
patch 1 of this set.
Signed-off-by: Mike Miller <mike.miller@hp.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew G. Morgan [Thu, 12 Jun 2008 22:21:33 +0000 (15:21 -0700)]
capabilities: add (back) dummy support for KEEPCAPS
The dummy module is used by folk that run security conscious code(!?). A
feature of such code (for example, dhclient) is that it tries to operate
with minimum privilege (dropping unneeded capabilities). While the dummy
module doesn't restrict code execution based on capability state, the user
code expects the kernel to appear to support it. This patch adds back
faked support for the PR_SET_KEEPCAPS etc., calls - making the kernel
behave as before 2.6.26.
For details see: http://bugzilla.kernel.org/show_bug.cgi?id=10748
Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: James Morris <jmorris@namei.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ben Nizette [Thu, 12 Jun 2008 22:21:31 +0000 (15:21 -0700)]
proc_fs.h: move struct mm_struct forward-declaration
Move the forward-declaration of struct mm_struct a little way up
proc_fs.h. This fixes a bunch of "'struct mm_struct' declared inside
parameter list" warnings with CONFIG_PROC_FS=n
Signed-off-by: Ben Nizette <bn@niasdigital.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Jackson [Thu, 12 Jun 2008 22:21:31 +0000 (15:21 -0700)]
cpusets: provide another web page URL in MAINTAINERS file
Add URL for another CPUSETS web page to the MAINTAINERS file.
This URL provides links to major LGPL user level C libraries supporting
cpuset usage and user level cpu and node masks.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Thu, 12 Jun 2008 22:21:29 +0000 (15:21 -0700)]
hgafb: resource management fix
Release ports which are requested during detection which are not freed if
there is no hga card. Otherwise there is a crash during cat /proc/ioports
command.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Aneesh Kumar K.V [Thu, 12 Jun 2008 22:21:29 +0000 (15:21 -0700)]
m68k: Add ext2_find_{first,next}_bit() for ext4
Add ext2_find_{first,next}_bit(), which are needed for ext4. They're
derived out of the ext2_find_next_zero_bit found in the same file.
Compile tested with crosstools
[Reworked to preserve all symmetry with ext2_find_{first,next}_zero_bit()]
This fixes http://bugzilla.kernel.org/show_bug.cgi?id=10393
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
OGAWA Hirofumi [Thu, 12 Jun 2008 22:21:28 +0000 (15:21 -0700)]
fat: relax the permission check of fat_setattr()
New chmod() allows only acceptable permission, and if not acceptable, it
returns -EPERM. Old one allows even if it can't store permission to on
disk inode. But it seems too strict for users.
E.g. https://bugzilla.redhat.com/show_bug.cgi?id=449080: With new one,
rsync couldn't create the temporary file.
So, this patch allows like old one, but now it doesn't change the
permission if it can't store, and it returns 0.
Also, this patch fixes missing check.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kosaki.motohiro@jp.fujitsu.com [Thu, 12 Jun 2008 22:21:27 +0000 (15:21 -0700)]
mm: fix incorrect variable type in do_try_to_free_pages()
"Smarter retry of costly-order allocations" patch series change behaver of
do_try_to_free_pages(). But unfortunately ret variable type was
unchanged.
Thus an overflow is possible.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Amit Kucheria [Thu, 12 Jun 2008 22:21:26 +0000 (15:21 -0700)]
agp: add support for Radeon Mobility 9000 chipset
Addresses https://bugs.edge.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/178634
Signed-off-by: Amit Kucheria <amit.kucheria@ubuntu.com>
Signed-off-by: maximilian attems <max@stro.at>
Acked-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 12 Jun 2008 21:22:24 +0000 (14:22 -0700)]
Linux 2.6.26-rc6
.. and a new name, courtesy of Alan.
Linus Torvalds [Thu, 12 Jun 2008 19:55:32 +0000 (12:55 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: fix pointer type warning in arch/x86/mm/init_64.c:early_memtest
x86, lockdep: fix "WARNING: at kernel/lockdep.c:2658 check_flags+0x4c/0x128()"
x86: fix an incompatible pointer type warning on 64-bit compilations
x86: fix lockdep warning during suspend-to-ram
x86: fix unused variable 'loops' warning in arch/x86/boot/a20.c
Revert "x86: fix ioapic bug again"
x86: fix asm warning in head_32.S
x86: fix endless page faults in mount_block_root for Linux 2.6
geode: fix modular build
Linus Torvalds [Thu, 12 Jun 2008 19:55:18 +0000 (12:55 -0700)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: 64-bit: fix arithmetics overflow
sched: fair group: fix overflow(was: fix divide by zero)
sched: fix TASK_WAKEKILL vs SIGKILL race
Kevin Winchester [Fri, 30 May 2008 00:14:35 +0000 (21:14 -0300)]
x86: fix pointer type warning in arch/x86/mm/init_64.c:early_memtest
Changed the call to find_e820_area_size to pass u64 instead of unsigned long.
Signed-off-by: Kevin Winchester <kjwinchester@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Vegard Nossum [Thu, 12 Jun 2008 06:55:59 +0000 (08:55 +0200)]
x86, lockdep: fix "WARNING: at kernel/lockdep.c:2658 check_flags+0x4c/0x128()"
Alessandro Suardi reported:
> Recently upgraded my FC6 desktop to Fedora 9; with the
> latest nautilus RPM updates my VNC session went nuts
> with nautilus pegging the CPU for everything that breathed.
>
> I now reverted to an earlier nautilus package, but during
> the peak CPU period my kernel spat this:
>
> [314185.623294] ------------[ cut here ]------------
> [314185.623414] WARNING: at kernel/lockdep.c:2658 check_flags+0x4c/0x128()
> [314185.623514] Modules linked in: iptable_filter ip_tables x_tables
> sunrpc ipv6 fuse snd_via82xx snd_ac97_codec ac97_bus snd_mpu401_uart
> snd_rawmidi via686a hwmon parport_pc sg parport uhci_hcd ehci_hcd
> [314185.623924] Pid: 12314, comm: nautilus Not tainted 2.6.26-rc5-git2 #4
> [314185.624021] [<
c0115b95>] warn_on_slowpath+0x41/0x7b
> [314185.624021] [<
c010de70>] ? do_page_fault+0x2c1/0x5fd
> [314185.624021] [<
c0128396>] ? up_read+0x16/0x28
> [314185.624021] [<
c010de70>] ? do_page_fault+0x2c1/0x5fd
> [314185.624021] [<
c012fa33>] ? __lock_acquire+0xbb4/0xbc3
> [314185.624021] [<
c012d0a0>] check_flags+0x4c/0x128
> [314185.624021] [<
c012fa73>] lock_acquire+0x31/0x7d
> [314185.624021] [<
c0128cf6>] __atomic_notifier_call_chain+0x30/0x80
> [314185.624021] [<
c0128cc6>] ? __atomic_notifier_call_chain+0x0/0x80
> [314185.624021] [<
c0128d52>] atomic_notifier_call_chain+0xc/0xe
> [314185.624021] [<
c0128d81>] notify_die+0x2d/0x2f
> [314185.624021] [<
c01043b0>] do_int3+0x1f/0x4d
> [314185.624021] [<
c02f2d3b>] int3+0x27/0x2c
> [314185.624021] =======================
> [314185.624021] ---[ end trace
1923f65a2d7bb246 ]---
> [314185.624021] possible reason: unannotated irqs-off.
> [314185.624021] irq event stamp: 488879
> [314185.624021] hardirqs last enabled at (488879): [<
c0102d67>]
> restore_nocheck+0x12/0x15
> [314185.624021] hardirqs last disabled at (488878): [<
c0102dca>]
> work_resched+0x19/0x30
> [314185.624021] softirqs last enabled at (488876): [<
c011a1ba>]
> __do_softirq+0xa6/0xac
> [314185.624021] softirqs last disabled at (488865): [<
c010476e>]
> do_softirq+0x57/0xa6
>
> I didn't seem to find it with some googling, so here it is.
>
> I was incidentally ltracing that process to try and find out
> what was gulping down that much CPU (sorry, no idea
> whether ltrace and the WARNING happened at the same
> time or which came first) and:
Yeah, this is extremely likely to be the source of the warning.
The warning should be harmless, however.
> Box is my trusty noname K7-800, 512MB RAM; if there's
> anything else useful I might be able to provide, just ask.
It would be interesting to see where the int3 comes from. Too bad,
lockdep doesn't provide the register dump. The stacktrace also doesn't
go further than the int3(), I wonder if this int3 came from userspace?
The ltrace readme says "software breakpoints, like gdb", so I guess
this is the case. Yep, seems like it.
This looks relevant:
| commit
fb1dac909d94ff807cd833d340c6827c3a957159
| Author: Peter Zijlstra <a.p.zijlstra@chello.nl>
| Date: Wed Jan 16 09:51:59 2008 +0100
|
| lockdep: more hardirq annotations for notify_die()
I'm attaching a similarly-looking patch for this case (DO_VM86_ERROR),
though I suspect it might be missing for the other cases
(DO_ERROR/DO_ERROR_INFO) as well.
Reported-by: Alessandro Suardi <alessandro.suardi@gmail.com>
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
David Howells [Sat, 7 Jun 2008 16:18:40 +0000 (17:18 +0100)]
x86: fix an incompatible pointer type warning on 64-bit compilations
Fix an incompatible pointer type warning on x86_64 compilations.
early_memtest() is passing a u64* to find_e820_area_size() which is expecting
an unsigned long. Change t_start and t_size to unsigned long as those are
also 64-bit types on x88_64.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra [Fri, 6 Jun 2008 08:14:08 +0000 (10:14 +0200)]
x86: fix lockdep warning during suspend-to-ram
Andrew Morton wrote:
> I've been seeing the below for a long time during suspend-to-ram on the Vaio.
>
>
> PM: Syncing filesystems ... done.
> PM: Preparing system for mem sleep
> Freezing user space processes ... <4>------------[ cut here ]------------
> WARNING: at kernel/lockdep.c:2658 check_flags+0x4c/0x127()
> Modules linked in: i915 drm ipw2200 sonypi ipv6 autofs4 hidp l2cap bluetooth sunrpc nf_conntrack_netbios_ns ipt_REJECT nf_conntrack_ipv4 xt_state nf_conntrack xt_tcpudp iptable_filter ip_tables x_tables acpi_cpufreq nvram ohci1394 ieee1394 ehci_hcd uhci_hcd sg joydev snd_hda_intel snd_seq_dummy sr_mod snd_seq_oss cdrom snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss ieee80211 pcspkr ieee80211_crypt snd_pcm i2c_i801 snd_timer i2c_core ide_pci_generic piix snd soundcore snd_page_alloc button ext3 jbd ide_disk ide_core [last unloaded: ipw2200]
> Pid: 3250, comm: zsh Not tainted 2.6.26-rc5 #1
> [<
c011c5f5>] warn_on_slowpath+0x41/0x6d
> [<
c01080e6>] ? native_sched_clock+0x82/0x96
> [<
c013789c>] ? mark_held_locks+0x41/0x5c
> [<
c0315688>] ? _spin_unlock_irqrestore+0x36/0x58
> [<
c0137a29>] ? trace_hardirqs_on+0xe6/0x10d
> [<
c0138637>] ? __lock_acquire+0xae3/0xb2b
> [<
c0313413>] ? schedule+0x39b/0x3b4
> [<
c0135596>] check_flags+0x4c/0x127
> [<
c01386b9>] lock_acquire+0x3a/0x86
> [<
c0315075>] _spin_lock+0x26/0x53
> [<
c0140660>] ? refrigerator+0x13/0xc3
> [<
c0140660>] refrigerator+0x13/0xc3
> [<
c012684a>] get_signal_to_deliver+0x3c/0x31e
> [<
c0102fe7>] do_notify_resume+0x91/0x6ee
> [<
c01359fd>] ? lock_release_holdtime+0x50/0x56
> [<
c0315688>] ? _spin_unlock_irqrestore+0x36/0x58
> [<
c0235d24>] ? read_chan+0x0/0x58c
> [<
c0137a29>] ? trace_hardirqs_on+0xe6/0x10d
> [<
c0315694>] ? _spin_unlock_irqrestore+0x42/0x58
> [<
c0230afa>] ? tty_ldisc_deref+0x5c/0x63
> [<
c0233104>] ? tty_read+0x66/0x98
> [<
c014b3f0>] ? audit_syscall_exit+0x2aa/0x2c5
> [<
c0109430>] ? do_syscall_trace+0x6b/0x16f
> [<
c0103a9c>] work_notifysig+0x13/0x1b
> =======================
> ---[ end trace
25b49fe59a25afa5 ]---
> possible reason: unannotated irqs-off.
> irq event stamp: 58919
> hardirqs last enabled at (58919): [<
c0103afd>] syscall_exit_work+0x11/0x26
Joy - I so love entry.S
Best I can make of it:
syscall_exit_work
resume_userspace
DISABLE_INTERRUPTS
(no TRACE_IRQS_OFF)
work_pending
work_notifysig
do_notify_resume()
do_signal()
get_signal_to_deliver()
try_to_freeze()
refrigerator()
task_lock() -> check_flags() -> BANG
The normal path is:
syscall_exit_work
resume_userspace
DISABLE_INTERRUPTS
restore_all
TRACE_IRQS_IRET
iret
No idea why that would not warn..
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Manish Katiyar [Thu, 5 Jun 2008 13:44:15 +0000 (19:14 +0530)]
x86: fix unused variable 'loops' warning in arch/x86/boot/a20.c
Following patch fixes the below warning message :
arch/x86/boot/a20.c:118: warning: unused variable 'loops'
Signed-off-by : Manish Katiyar <mkatiyar@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 9 Jun 2008 11:29:43 +0000 (13:29 +0200)]
Revert "x86: fix ioapic bug again"
This reverts commit
6e908947b4995bc0e551a8257c586d5c3e428201.
Németh Márton reported:
| there is a problem in 2.6.26-rc3 which was not there in case of
| 2.6.25: the CPU wakes up ~90,000 times per sec instead of ~60 per sec.
|
| I also "git bisected" the problem, the result is:
|
|
6e908947b4995bc0e551a8257c586d5c3e428201 is first bad commit
| commit
6e908947b4995bc0e551a8257c586d5c3e428201
| Author: Ingo Molnar <mingo@elte.hu>
| Date: Fri Mar 21 14:32:36 2008 +0100
|
| x86: fix ioapic bug again
the original problem is fixed by Maciej W. Rozycki in the tip/x86/apic
branch (confirmed by Márton), but those changes are too intrusive for
v2.6.26 so we'll go for the less intrusive (repeated) revert now.
Reported-and-bisected-by: Németh Márton <nm127@freemail.hu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Joe Korty [Mon, 2 Jun 2008 21:21:06 +0000 (17:21 -0400)]
x86: fix asm warning in head_32.S
On Mon, May 19, 2008 at 04:10:02PM -0700, Linus Torvalds wrote:
> It also causes these warnings on 32-bit PAE:
>
> AS arch/x86/kernel/head_32.o
> arch/x86/kernel/head_32.S: Assembler messages:
> arch/x86/kernel/head_32.S:225: Warning: left operand is a bignum; integer 0 assumed
> arch/x86/kernel/head_32.S:609: Warning: left operand is a bignum; integer 0 assumed
>
> and I do not see why (the end result seems to be identical).
Fix head_32.S gcc bignum warnings when CONFIG_PAE=y.
arch/x86/kernel/head_32.S: Assembler messages:
arch/x86/kernel/head_32.S:225: Warning: left operand is a bignum; integer 0 assumed
arch/x86/kernel/head_32.S:609: Warning: left operand is a bignum; integer 0 assumed
The assembler was stumbling over the 64-bit constant 0x100000000 in the
KPMDS #define.
Testing: a cmp(1) on head_32.o before and after shows the binary is unchanged.
Signed-off-by: Joe Korty <joe.korty@ccur.com
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Theodore Tso <tytso@mit.edu>
Cc: Gabriel C <nix.or.die@googlemail.com>
Cc: Keith Packard <keithp@keithp.com>
Cc: "Pallipadi Venkatesh" <venkatesh.pallipadi@intel.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: "Siddha Suresh B" <suresh.b.siddha@intel.com>
Cc: bugme-daemon@bugzilla.kernel.org
Cc: airlied@linux.ie
Cc: "Barnes Jesse" <jesse.barnes@intel.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Henry Nestler [Mon, 12 May 2008 13:44:39 +0000 (15:44 +0200)]
x86: fix endless page faults in mount_block_root for Linux 2.6
Page faults in kernel address space between PAGE_OFFSET up to
VMALLOC_START should not try to map as vmalloc.
Fix rarely endless page faults inside mount_block_root for root
filesystem at boot time.
All 32bit kernels up to 2.6.25 can fail into this hole.
I can not present this under native linux kernel. I see, that the 64bit
has fixed the problem. I copied the same lines into 32bit part.
Recorded debugs are from coLinux kernel 2.6.22.18 (virtualisation):
http://www.henrynestler.com/colinux/testing/pfn-check-0.7.3/
20080410-antinx/bug16-recursive-page-fault-endless.txt
The physicaly memory was trimmed down to 192MB to better catch the bug.
More memory gets the bug more rarely.
Details, how every x86 32bit system can fail:
Start from "mount_block_root",
http://lxr.linux.no/linux/init/do_mounts.c#L297
There the variable "fs_names" got one memory page with 4096 bytes.
Variable "p" walks through the existing file system types. The first
string is no problem.
But, with the second loop in mount_block_root the offset of "p" is not
at beginning of page, the offset is for example +9, if "reiserfs" is the
first in list.
Than calls do_mount_root, and lands in sys_mount.
Remember: Variable "type_page" contains now "fs_type+9" and not contains
a full page.
The sys_mount copies 4096 bytes with function "exact_copy_from_user()":
http://lxr.linux.no/linux/fs/namespace.c#L1540
Mostly exist pages after the buffer "fs_names+4096+9" and the page fault
handler was not called. No problem.
In the case, if the page after "fs_names+4096" is not mapped, the page
fault handler was called from http://lxr.linux.no/linux/fs/namespace.c#L1320
The do_page_fault gots an address 0xc03b4000.
It's kernel address, address >= TASK_SIZE, but not from vmalloc! It's
from "__getname()" alias "kmem_cache_alloc".
The "error_code" is 0. "vmalloc_fault" will be call:
http://lxr.linux.no/linux/arch/i386/mm/fault.c#L332
"vmalloc_fault" tryed to find the physical page for a non existing
virtual memory area. The macro "pte_present" in vmalloc_fault()
got a next page fault for 0xc0000ed0 at:
http://lxr.linux.no/linux/arch/i386/mm/fault.c#L282
No PTE exist for such virtual address. The page fault handler was trying
to sync the physical page for the PTE lockup.
This called vmalloc_fault() again for address 0xc000000, and that also
was not existing. The endless began...
In normal case the cpu would still loop with disabled interrrupts. Under
coLinux this was catched by a stack overflow inside printk debugs.
Signed-off-by: Henry Nestler <henry.nestler@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Ingo Molnar [Wed, 4 Jun 2008 16:13:37 +0000 (18:13 +0200)]
geode: fix modular build
-tip testing found this build bug:
MODPOST 331 modules
ERROR: "geode_mfgpt_toggle_event" [drivers/watchdog/geodewdt.ko] undefined!
ERROR: "geode_mfgpt_alloc_timer" [drivers/watchdog/geodewdt.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
with this config:
http://redhat.com/~mingo/misc/config-Wed_Jun__4_18_01_59_CEST_2008.bad
export those symbols.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Carl Henrik Lunde [Thu, 12 Jun 2008 18:13:58 +0000 (20:13 +0200)]
block: disable IRQs until data is written to relay channel
As we may run relay_reserve from interrupt context we must always disable
IRQs. This is because a call to relay_reserve may expose previously written
data to use space.
Updated new message code and an old but related comment.
Signed-off-by: Carl Henrik Lunde <chlunde@ping.uio.no>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 12 Jun 2008 14:56:39 +0000 (07:56 -0700)]
Merge git://git./linux/kernel/git/sam/kbuild-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
kbuild: ignore powerpc specific symbols in modpost
Paul Mundt [Thu, 12 Jun 2008 07:29:55 +0000 (16:29 +0900)]
nommu: Correct kobjsize() page validity checks.
This implements a few changes on top of the recent kobjsize() refactoring
introduced by commit
6cfd53fc03670c7a544a56d441eb1a6cc800d72b.
As Christoph points out:
virt_to_head_page cannot return NULL. virt_to_page also
does not return NULL. pfn_valid() needs to be used to
figure out if a page is valid. Otherwise the page struct
reference that was returned may have PageReserved() set
to indicate that it is not a valid page.
As discussed further in the thread, virt_addr_valid() is the preferable
way to validate the object pointer in this case. In addition to fixing
up the reserved page case, it also has the benefit of encapsulating the
hack introduced by commit
4016a1390d07f15b267eecb20e76a48fd5c524ef on
the impacted platforms, allowing us to get rid of the extra checking in
kobjsize() for the platforms that don't perform this type of bizarre
memory_end abuse (every nommu platform that isn't blackfin). If blackfin
decides to get in line with every other platform and use PageReserved
for the DMA pages in question, kobjsize() will also continue to work
fine.
It also turns out that compound_order() will give us back 0-order for
non-head pages, so we can get rid of the PageCompound check and just
use compound_order() directly. Clean that up while we're at it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Mahoney [Thu, 12 Jun 2008 06:05:26 +0000 (02:05 -0400)]
fsl-diu-db: compile fix
This patch fixes a compile failure in 2.6.26-rc5-git5.
The variable is expected to be called ofdev.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 12 Jun 2008 14:47:44 +0000 (07:47 -0700)]
Merge branch 'core/iter-div' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core/iter-div' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
always_inline timespec_add_ns
add an inlined version of iter_div_u64_rem
common implementation of iterative div/mod
Sam Ravnborg [Thu, 12 Jun 2008 13:02:55 +0000 (15:02 +0200)]
kbuild: ignore powerpc specific symbols in modpost
Kumar Gala <galak@kernel.crashing.org> wrote:
We have a case in powerpc in which we want to link some library
routines with all module objects. The routines are intended for
handling out-of-line function call register save/restore so having
them as EXPORT_SYMBOL() is counter productive (we do also need to
link the same "library" code into the kernel).
Without this patch a powerpc build would error out and fail
to build modules with the added register save/restore module.
There were two obvious solutions:
1) To link the .o file before the modpost stage
2) To ignore the symbols in modpost
Option 1) was ruled out because we do not have any separate
linking stage for single file modules.
This patch implements option 2 - and do so only for powerpc.
The symbols we ignore are all undefined symbols named:
_restgpr_*, _savegpr_*, _rest32gpr_*, _save32gpr_*
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Lai Jiangshan [Thu, 12 Jun 2008 08:43:07 +0000 (16:43 +0800)]
sched: 64-bit: fix arithmetics overflow
(overflow means weight >= 2^32 here, because inv_weigh = 2^32/weight)
A weight of a cfs_rq is the sum of weights of which entities
are queued on this cfs_rq, so it will overflow when there are
too many entities.
Although, overflow occurs very rarely, but it break fairness when
it occurs. 64-bits systems have more memory than 32-bit systems
and 64-bit systems can create more process usually, so overflow may
occur more frequently.
This patch guarantees fairness when overflow happens on 64-bit systems.
Thanks to the optimization of compiler, it changes nothing on 32-bit.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Lai Jiangshan [Thu, 12 Jun 2008 08:42:58 +0000 (16:42 +0800)]
sched: fair group: fix overflow(was: fix divide by zero)
I found a bug which can be reproduced by this way:(linux-2.6.26-rc5, x86-64)
(use 2^32, 2^33, ...., 2^63 as shares value)
# mkdir /dev/cpuctl
# mount -t cgroup -o cpu cpuctl /dev/cpuctl
# cd /dev/cpuctl
# mkdir sub
# echo 0x8000000000000000 > sub/cpu.shares
# echo $$ > sub/tasks
oops here! divide by zero.
This is because do_div() expects the 2th parameter to be 32 bits,
but unsigned long is 64 bits in x86_64.
Peter Zijstra pointed it out that the sane thing to do is limit the
shares value to something smaller instead of using an even more
expensive divide.
Also, I found another bug about "the shares value is too large":
pid1 and pid2 are set affinity to cpu#0
pid1 is attached to cg1 and pid2 is attached to cg2
if cg1/cpu.shares = 1024 cg2/cpu.shares =
2000000000
then pid2 got 100% usage of cpu, and pid1 0%
if cg1/cpu.shares = 1024 cg2/cpu.shares =
20000000000
then pid2 got 0% usage of cpu, and pid1 100%
And a weight of a cfs_rq is the sum of weights of which entities
are queued on this cfs_rq, so the shares value should be limited
to a smaller value.
I think that (1UL << 18) is a good limited value:
1) it's not too large, we can create a lot of group before overflow
2) it's several times the weight value for nice=-19 (not too small)
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jeremy Fitzhardinge [Thu, 12 Jun 2008 08:48:00 +0000 (10:48 +0200)]
always_inline timespec_add_ns
timespec_add_ns is used from the x86-64 vdso, which cannot call out to
other kernel code. Make sure that timespec_add_ns is always inlined
(and only uses always_inlined functions) to make sure there are no
unexpected calls.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jeremy Fitzhardinge [Thu, 12 Jun 2008 08:47:58 +0000 (10:47 +0200)]
add an inlined version of iter_div_u64_rem
iter_div_u64_rem is used in the x86-64 vdso, which cannot call other
kernel code. For this case, provide the always_inlined version,
__iter_div_u64_rem.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jeremy Fitzhardinge [Thu, 12 Jun 2008 08:47:56 +0000 (10:47 +0200)]
common implementation of iterative div/mod
We have a few instances of the open-coded iterative div/mod loop, used
when we don't expcet the dividend to be much bigger than the divisor.
Unfortunately modern gcc's have the tendency to strength "reduce" this
into a full mod operation, which isn't necessarily any faster, and
even if it were, doesn't exist if gcc implements it in libgcc.
The workaround is to put a dummy asm statement in the loop to prevent
gcc from performing the transformation.
This patch creates a single implementation of this loop, and uses it
to replace the open-coded versions I know about.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Christian Kujau <lists@nerdbynature.de>
Cc: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Linus Torvalds [Thu, 12 Jun 2008 00:29:32 +0000 (17:29 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: don't use reset-resume if drivers don't support it
USB: isp1760: Assign resource fields before adding hcd
isight_firmware: Avoid crash on loading invalid firmware
USB: fix build bug in USB_ISIGHTFW
Linus Torvalds [Thu, 12 Jun 2008 00:29:06 +0000 (17:29 -0700)]
Merge git://git./linux/kernel/git/gregkh/driver-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
kobject: Documentation Spelling Patch
dev_set_name: fix missing kernel-doc
Linus Torvalds [Thu, 12 Jun 2008 00:16:32 +0000 (17:16 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (23 commits)
ACPICA: fix stray va_end() caused by mis-merge
ACPI: Reject below-freezing temperatures as invalid critical temperatures
ACPICA: Fix for access to deleted object <regression>
ACPICA: Fix to make _SST method optional
ACPICA: Fix for Load operator, load table at the namespace root
ACPICA: Ignore ACPI table signature for Load() operator
ACPICA: Fix to allow zero-length ASL field declarations
ACPI: use memory_read_from_buffer()
bay: exit if notify handler cannot be installed
dock.c remove trailing printk whitespace
proper prototype for acpi_processor_tstate_has_changed()
ACPI: handle invalid ACPI SLIT table
PNPACPI: use _CRS IRQ descriptor length for _SRS
pnpacpi: fix shareable IRQ encode/decode
pnpacpi: fix IRQ flag decoding
MAINTAINERS: update ACPI homepage
ACPI 2.6.26-rc2: Add missing newline to DSDT/SSDT warning message
ACPI: EC: Use msleep instead of udelay while waiting for event.
thinkpad-acpi: fix LED handling on older ThinkPads
thinkpad-acpi: fix initialization error paths
...
Linus Torvalds [Tue, 10 Jun 2008 18:59:43 +0000 (14:59 -0400)]
USB: don't use reset-resume if drivers don't support it
This patch tries to identify which devices are able to accept
reset-resume handling, by checking that there is at least one
interface driver bound and that all of the drivers have a reset_resume
method defined. If these conditions don't hold then during resume
processing, the device is logicall disconnected.
This is only a temporary fix. Later on we will explicitly unbind
drivers that can't handle reset-resumes.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: Pavel Machek <pavel@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nate Case [Wed, 21 May 2008 21:28:20 +0000 (16:28 -0500)]
USB: isp1760: Assign resource fields before adding hcd
This fixes the bogus "io mem 0x00000000" message printed
during driver init due to hcd->rsrc_start being assigned after
the call to usb_add_hcd().
Signed-off-by: Nate Case <ncase@xes-inc.com>
Acked-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Matthew Garrett [Fri, 6 Jun 2008 19:35:15 +0000 (12:35 -0700)]
isight_firmware: Avoid crash on loading invalid firmware
Different tools generate slightly different formats of the isight
firmware. Ensure that the firmware buffer is not overrun, while still
ensuring that the correct amount of data is written if trailing data is
present.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Report-by: Justin Mattock <justinmattock@gmail.com>
Tested-by: Justin Mattock <justinmattock@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ingo Molnar [Mon, 2 Jun 2008 19:21:03 +0000 (21:21 +0200)]
USB: fix build bug in USB_ISIGHTFW
USB: fix build bug in USB_ISIGHTFW
-tip tree testing found this build bug:
drivers/built-in.o: In function `isight_firmware_load':
isight_firmware.c:(.text+0x1ade08): undefined reference to `request_firmware'
isight_firmware.c:(.text+0x1adf9c): undefined reference to `release_firmware'
select FW_LOADER in USB_ISIGHTFW.
From: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brigada [Wed, 11 Jun 2008 17:27:32 +0000 (13:27 -0400)]
kobject: Documentation Spelling Patch
Signed-off-by: David Brigada <brigad@rpi.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Randy Dunlap [Thu, 5 Jun 2008 04:40:43 +0000 (21:40 -0700)]
dev_set_name: fix missing kernel-doc
Fix kernel-doc for new dev_set_name() function:
Warning(lin2626-rc5//drivers/base/core.c:767): No description found for parameter 'fmt'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Len Brown [Fri, 6 Jun 2008 19:32:39 +0000 (15:32 -0400)]
ACPICA: fix stray va_end() caused by mis-merge
Signed-off-by: Len Brown <len.brown@intel.com>
Arjan van de Ven [Mon, 19 May 2008 22:55:15 +0000 (15:55 -0700)]
ACPI: Reject below-freezing temperatures as invalid critical temperatures
My laptop thinks that it's a good idea to give -73C as the critical
CPU temperature.... which isn't the best thing since it causes a shutdown
right at bootup.
Temperatures below freezing are clearly invalid critical thresholds
so just reject these as such.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Bob Moore [Tue, 10 Jun 2008 06:29:26 +0000 (14:29 +0800)]
ACPICA: Fix for access to deleted object <regression>
Fixes problem introduced in
20080123, with fix for Unload operator.
Parse tree object can be already deleted; must use the opcode
within the WalkState.
ACPI: kmemcheck: Caught 16-bit read from freed memory
http://bugzilla.kernel.org/show_bug.cgi?id=10669
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Bob Moore [Tue, 10 Jun 2008 06:26:57 +0000 (14:26 +0800)]
ACPICA: Fix to make _SST method optional
Fixes a problem introduced in
20080514 where the status of
execution of _SST is incorrectly returned to the caller. _SST
is optional, and if it is AE_NOT_FOUND, the exception should be
ignored.
http://www.acpica.org/bugzilla/show_bug.cgi?id=716
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Bob Moore [Tue, 10 Jun 2008 06:14:17 +0000 (14:14 +0800)]
ACPICA: Fix for Load operator, load table at the namespace root
This reverts a change introduced in version
20071019. The table
is now loaded at the namespace root even though this goes against
the ACPI specification. This provides compatibility with other
ACPI implementations.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Bob Moore [Tue, 10 Jun 2008 06:12:50 +0000 (14:12 +0800)]
ACPICA: Ignore ACPI table signature for Load() operator
Only "SSDT" is acceptable to the ACPI spec, but tables are
seen with OEMx and null sigs. Therefore, signature validation
is worthless. Apparently MS ACPI accepts such signatures, ACPICA
must be compatible.
http://bugzilla.kernel.org/show_bug.cgi?id=10454
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Bob Moore [Tue, 10 Jun 2008 05:00:32 +0000 (13:00 +0800)]
ACPICA: Fix to allow zero-length ASL field declarations
Allows null field list in Field(), BankField(), and IndexField().
2.6.26-rc1 regression: ACPI fails to load SDT. - Dell M1530
http://bugzilla.kernel.org/show_bug.cgi?id=10606
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Akinobu Mita [Mon, 9 Jun 2008 23:22:26 +0000 (16:22 -0700)]
ACPI: use memory_read_from_buffer()
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Holger Macht [Mon, 9 Jun 2008 23:22:24 +0000 (16:22 -0700)]
bay: exit if notify handler cannot be installed
If acpi_install_notify_handler() for a bay device fails, the bay driver is
superfluous. Most likely, another driver (like libata) is already caring
about this device anyway. Furthermore,
register_hotplug_dock_device(acpi_handle) from the dock driver must not be
called twice with the same handler. This would result in an endless loop
consuming 100% of CPU. So clean up and exit.
Signed-off-by: Holger Macht <hmacht@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Tim Pepper [Mon, 9 Jun 2008 23:22:25 +0000 (16:22 -0700)]
dock.c remove trailing printk whitespace
Signed-off-by: Tim Pepper <lnxninja@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Adrian Bunk [Mon, 9 Jun 2008 23:22:24 +0000 (16:22 -0700)]
proper prototype for acpi_processor_tstate_has_changed()
This patch adds a proper prototype for acpi_processor_tstate_has_changed()
in include/acpi/processor.h
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Fenghua Yu [Mon, 9 Jun 2008 23:48:18 +0000 (16:48 -0700)]
ACPI: handle invalid ACPI SLIT table
This is a SLIT sanity checking patch. It moves slit_valid() function to
generic ACPI code and does sanity checking for both x86 and ia64. It sets up
node_distance with LOCAL_DISTANCE and REMOTE_DISTANCE when hitting invalid
SLIT table on ia64. It also cleans up unused variable localities in
acpi_parse_slit() on x86.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Bjorn Helgaas [Mon, 9 Jun 2008 23:52:06 +0000 (16:52 -0700)]
PNPACPI: use _CRS IRQ descriptor length for _SRS
When configuring the resources of an ACPI device, we first evaluate _CRS
to get a template of resource descriptors, then fill in the specific
resource values we want, and finally evaluate _SRS to actually configure
the device.
Some resources have optional fields, so the size of encoded descriptors
varies depending on the specific values. For example, IRQ descriptors can
be either two or three bytes long. The third byte contains triggering
information and can be omitted if the IRQ is edge-triggered and active
high.
The BIOS often assumes that IRQ descriptors in the _SRS buffer use the
same format as those in the _CRS buffer, so this patch enforces that
constraint.
The "Start Dependent Function" descriptor also has an optional byte, but
we don't currently encode those descriptors, so I didn't do anything for
those.
I have tested this patch on a Toshiba Portege 4000. Without the patch,
parport_pc claims the parallel port only if I use "pnpacpi=off". This
patch makes it work with PNPACPI.
This is an extension of a patch by Tom Jaeger:
http://bugzilla.kernel.org/show_bug.cgi?id=9487#c42
References:
http://bugzilla.kernel.org/show_bug.cgi?id=5832 Enabling ACPI Plug and Play in kernels >2.6.9 kills Parallel support
http://bugzilla.kernel.org/show_bug.cgi?id=9487 buggy firmware expects four-byte IRQ resource descriptor (was: Serial port disappears after Suspend on Toshiba R25)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=
1d5b285da1893b90507b081664ac27f1a8a3dc5b related ACPICA fix
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Bjorn Helgaas [Mon, 9 Jun 2008 23:52:05 +0000 (16:52 -0700)]
pnpacpi: fix shareable IRQ encode/decode
When we encode IRQ resources, we should use the "shareable" flag we got
from _PRS rather than guessing based on the IRQ trigger mode.
This is based on a patch by Tom Jaeger:
http://bugzilla.kernel.org/show_bug.cgi?id=9487#c32
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Bjorn Helgaas [Mon, 9 Jun 2008 23:52:04 +0000 (16:52 -0700)]
pnpacpi: fix IRQ flag decoding
When decoding IRQ trigger mode and polarity, it is not enough to mask by
IORESOURCE_BITS because there are now additional bits defined. For
example, if IORESOURCE_IRQ_SHAREABLE was set, we failed to set *triggering
and *polarity at all.
I can't point to a failure that this patch fixes, but
bugs in this area have caused problems when resuming after
suspend, for example:
http://bugzilla.kernel.org/show_bug.cgi?id=6316
http://bugzilla.kernel.org/show_bug.cgi?id=9487
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/152187
This is based on a patch by Tom Jaeger:
http://bugzilla.kernel.org/show_bug.cgi?id=9487#c32
[rene.herman@keyaccess.nl: fix comment]
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Adrian Bunk [Mon, 19 May 2008 22:08:23 +0000 (01:08 +0300)]
MAINTAINERS: update ACPI homepage
This patch updates the location of the ACPI homepage in MAINTAINERS.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Alistair John Strachan [Mon, 12 May 2008 18:13:09 +0000 (19:13 +0100)]
ACPI 2.6.26-rc2: Add missing newline to DSDT/SSDT warning message
As of recently (probably 2.6.26-rc1) I've been getting the following mangling
in the kernel log:
[4294014.568167] ACPI: DSDT override uses original SSDTs unless "acpi_no_auto_ssdt"<6>CPU0: Intel(R) Pentium(R) Dual CPU E2160 @ 1.80GHz stepping 0d
This is due to a missing newline character in the first message. The following
patch against 2.6.26-rc2 fixes it. Please apply.
Signed-off-by: Alistair John Strachan <alistair@devzero.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
Alexey Starikovskiy [Fri, 6 Jun 2008 15:49:33 +0000 (11:49 -0400)]
ACPI: EC: Use msleep instead of udelay while waiting for event.
http://bugzilla.kernel.org/show_bug.cgi?id=10724
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Henrique de Moraes Holschuh [Wed, 4 Jun 2008 02:36:11 +0000 (23:36 -0300)]
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit
af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Henrique de Moraes Holschuh [Wed, 4 Jun 2008 02:36:10 +0000 (23:36 -0300)]
thinkpad-acpi: fix initialization error paths
Rework some subdriver init and exit handlers, in order to fix some
initialization error paths that were missing, or broken.
Hitting those bugs should be extremely rare in the real world, but should
that happen, thinkpad-acpi would fail to dealocate some resources and a
reboot might well be needed to be able to load the driver again.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Henrique de Moraes Holschuh [Wed, 4 Jun 2008 02:36:09 +0000 (23:36 -0300)]
thinkpad-acpi: SW_RADIO to SW_RFKILL_ALL rename
Rename SW_RADIO to SW_RFKILL_ALL in thinkpad-acpi code and docs, following
5adad0133907790c50283bf03271d920d6897043 "Input: rename SW_RADIO to
SW_RFKILL_ALL".
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
Venkatesh Pallipadi [Mon, 19 May 2008 23:09:27 +0000 (19:09 -0400)]
cpuidle acpi driver: fix oops on AC<->DC
cpuidle and acpi driver interaction bug with the way cpuidle_register_driver()
is called. Due to this bug, there will be oops on
AC<->DC on some systems, where they support C-states in one DC and not in AC.
The current code does
ON BOOT:
Look at CST and other C-state info to see whether more than C1 is
supported. If it is, then acpi processor_idle does a
cpuidle_register_driver() call, which internally enables the device.
ON CST change notification (AC<->DC) and on suspend-resume:
acpi driver temporarily disables device, updates the device with
any new C-states, and reenables the device.
The problem is is on boot, there are no C2, C3 states supported and we skip
the register. Later on AC<->DC, we may get a CST notification and we try
to reevaluate CST and enabled the device, without actually registering it.
This causes breakage as we try to create /sys fs sub directory, without the
parent directory which is created at register time.
Thanks to Sanjeev for reporting the problem here.
http://bugzilla.kernel.org/show_bug.cgi?id=10394
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Zhao Yakui [Wed, 14 May 2008 03:32:59 +0000 (11:32 +0800)]
ACPI: Disable Fixed_RTC event when installing RTC handler
The Fixed_RTC event should be disabled when installing RTC handler.
Only when RTC alarm is set will it be enabled again. If it is not
disabled, maybe some machines will be powered on automatically after
the system is shutdown even when the RTC alarm is not set.
http://bugzilla.kernel.org/show_bug.cgi?id=10010
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Linus Torvalds [Wed, 11 Jun 2008 17:35:44 +0000 (10:35 -0700)]
Merge branch 'kvm-updates-2.6.26' of git://git./linux/kernel/git/avi/kvm
* 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
KVM: MMU: Fix is_empty_shadow_page() check
KVM: MMU: Fix printk() format string
KVM: IOAPIC: only set remote_irr if interrupt was injected
KVM: MMU: reschedule during shadow teardown
KVM: VMX: Clear CR4.VMXE in hardware_disable
KVM: migrate PIT timer
KVM: ppc: Report bad GFNs
KVM: ppc: Use a read lock around MMU operations, and release it on error
KVM: ppc: Remove unmatched kunmap() call
KVM: ppc: add lwzx/stwz emulation
KVM: ppc: Remove duplicate function
KVM: s390: Fix race condition in kvm_s390_handle_wait
KVM: s390: Send program check on access error
KVM: s390: fix interrupt delivery
KVM: s390: handle machine checks when guest is running
KVM: s390: fix locking order problem in enable_sie
KVM: s390: use yield instead of schedule to implement diag 0x44
KVM: x86 emulator: fix hypercall return value on AMD
KVM: ia64: fix zero extending for mmio ld1/2/4 emulation in KVM
Linus Torvalds [Wed, 11 Jun 2008 16:45:51 +0000 (09:45 -0700)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
[CIFS] cifs: fix oops on mount when CONFIG_CIFS_DFS_UPCALL is enabled
[CIFS] Fix hang in mount when negprot causes server to kill tcp session
disable most mode changes on non-unix/non-cifsacl mounts
[CIFS] Correct incorrect obscure open flag
[CIFS] warn if both dynperm and cifsacl mount options specified
silently ignore ownership changes unless unix extensions are enabled or we're faking uid changes
[CIFS] remove trailing whitespace
when creating new inodes, use file_mode/dir_mode exclusively on mount without unix extensions
on non-posix shares, clear write bits in mode when ATTR_READONLY is set
[CIFS] remove unused variables
Linus Torvalds [Wed, 11 Jun 2008 15:39:51 +0000 (08:39 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits)
net: Fix routing tables with id > 255 for legacy software
sky2: Hold RTNL while calling dev_close()
s2io iomem annotations
atl1: fix suspend regression
qeth: start dev queue after tx drop error
qeth: Prepare-function to call s390dbf was wrong
qeth: reduce number of kernel messages
qeth: Use ccw_device_get_id().
qeth: layer 3 Oops in ip event handler
virtio: use callback on empty in virtio_net
virtio: virtio_net free transmit skbs in a timer
virtio: Fix typo in virtio_net_hdr comments
virtio_net: Fix skb->csum_start computation
ehea: set mac address fix
sfc: Recover from RX queue flush failure
add missing lance_* exports
ixgbe: fix typo
forcedeth: msi interrupts
ipsec: pfkey should ignore events when no listeners
pppoe: Unshare skb before anything else
...
Bryan Wu [Wed, 11 Jun 2008 04:08:39 +0000 (12:08 +0800)]
smc91x: fix build error from the SMC_GET_MAC_ADDR API change
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David S. Miller [Tue, 10 Jun 2008 23:21:55 +0000 (16:21 -0700)]
Merge branch 'davem-fixes' of /linux/kernel/git/jgarzik/netdev-2.6
Krzysztof Piotr Oledzki [Tue, 10 Jun 2008 22:44:49 +0000 (15:44 -0700)]
net: Fix routing tables with id > 255 for legacy software
Most legacy software do not like tables > 255 as rtm_table is u8
so tb_id is sent &0xff and it is possible to mismatch for example
table 510 with table 254 (main).
This patch introduces RT_TABLE_COMPAT=252 so the code uses it if
tb_id > 255. It makes such old applications happy, new
ones are still able to use RTA_TABLE to get a proper table id.
Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ben Hutchings [Sat, 31 May 2008 15:52:52 +0000 (16:52 +0100)]
sky2: Hold RTNL while calling dev_close()
dev_close() must be called holding the RTNL.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
s2io iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Jay Cliburn [Sun, 1 Jun 2008 21:57:11 +0000 (16:57 -0500)]
atl1: fix suspend regression
Using vendor magic to force the PHY into power save mode breaks
suspend. It isn't needed anyway, so remove it.
Tested-by: Avuton Olrich <avuton@gmail.com>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Frank Blaschka [Fri, 6 Jun 2008 10:37:48 +0000 (12:37 +0200)]
qeth: start dev queue after tx drop error
In case the xmit function drop out with an error, we have to wake
the netdevice queue to start another xmit.
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Peter Tiedemann [Fri, 6 Jun 2008 10:37:47 +0000 (12:37 +0200)]
qeth: Prepare-function to call s390dbf was wrong
Prepare-function to call s390dbf was wrong handling variable arguments.
This worked as macro but not as function any more.
Now using va_list processing.
Signed-off-by: Peter Tiedemann <ptiedem@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Frank Blaschka [Fri, 6 Jun 2008 10:37:46 +0000 (12:37 +0200)]
qeth: reduce number of kernel messages
Remove unnecessary messages. Write important debug information to
s390dbf.
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cornelia Huck [Fri, 6 Jun 2008 10:37:45 +0000 (12:37 +0200)]
qeth: Use ccw_device_get_id().
Get the devno from the ccw device via ccw_device_get_id() instead
of parsing the bus_id.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Frank Blaschka [Fri, 6 Jun 2008 10:37:44 +0000 (12:37 +0200)]
qeth: layer 3 Oops in ip event handler
The ip event handler may present us non qeth network interfaces.
Add qeth card pointer check.
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Rusty Russell [Sun, 8 Jun 2008 10:51:55 +0000 (20:51 +1000)]
virtio: use callback on empty in virtio_net
virtio_net uses a timer to free old transmitted packets, rather than
leaving callbacks enabled all the time. If the host promises to
always notify us when the transmit ring is empty, we can free packets
at that point and avoid the timer.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Mark McLoughlin [Sun, 8 Jun 2008 10:50:56 +0000 (20:50 +1000)]
virtio: virtio_net free transmit skbs in a timer
virtio_net currently only frees old transmit skbs just
before queueing new ones. If the queue is full, it then
enables interrupts and waits for notification that more
work has been performed.
However, a side-effect of this scheme is that there are
always xmit skbs left dangling when no new packets are
sent, against the Documentation/networking/driver.txt
guideline:
"... it is not allowed for your TX mitigation scheme
to let TX packets "hang out" in the TX ring unreclaimed
forever if no new TX packets are sent."
Add a timer to ensure that any time we queue new TX
skbs, we will shortly free them again.
This fixes an easily reproduced hang at shutdown where
iptables attempts to unload nf_conntrack and nf_conntrack
waits for an skb it is tracking to be freed, but virtio_net
never frees it.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Mark McLoughlin [Sun, 8 Jun 2008 10:49:59 +0000 (20:49 +1000)]
virtio: Fix typo in virtio_net_hdr comments
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Mark McLoughlin [Sun, 8 Jun 2008 10:49:00 +0000 (20:49 +1000)]
virtio_net: Fix skb->csum_start computation
hdr->csum_start is the offset from the start of the ethernet
header to the transport layer checksum field. skb->csum_start
is the offset from skb->head.
skb_partial_csum_set() assumes that skb->data points to the
ethernet header - i.e. it computes skb->csum_start by adding
the headroom to hdr->csum_start.
Since eth_type_trans() skb_pull()s the ethernet header,
skb_partial_csum_set() should be called before
eth_type_trans().
(Without this patch, GSO packets from a guest to the world outside the
host are corrupted).
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Jan-Bernd Themann [Mon, 9 Jun 2008 14:17:37 +0000 (15:17 +0100)]
ehea: set mac address fix
eHEA has to call firmware functions in order to change the mac address
of a logical port. This patch checks if the logical port is up
when calling the register / deregister mac address calls. If the port
is down these firmware calls would fail and are therefore not executed.
Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Steve Hodgson [Mon, 9 Jun 2008 18:34:32 +0000 (19:34 +0100)]
sfc: Recover from RX queue flush failure
RX queue flush can fail if traffic continues to arrive. Recover by
performing an invisible reset.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Adrian Bunk [Mon, 9 Jun 2008 22:22:16 +0000 (01:22 +0300)]
add missing lance_* exports
This patch fixes the following build error:
<-- snip -->
...
Building modules, stage 2.
MODPOST 1203 modules
ERROR: "lance_open" [drivers/net/mvme147.ko] undefined!
ERROR: "lance_close" [drivers/net/mvme147.ko] undefined!
ERROR: "lance_tx_timeout" [drivers/net/mvme147.ko] undefined!
ERROR: "lance_set_multicast" [drivers/net/mvme147.ko] undefined!
ERROR: "lance_start_xmit" [drivers/net/mvme147.ko] undefined!
...
make[2]: *** [__modpost] Error 1
<-- snip -->
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>