Commit Graph

88217 Commits

Author SHA1 Message Date
Herbert Xu
f32c5f2c38 [IPV6]: Fix ICMP relookup error path dst leak
When we encounter an error while looking up the dst the second
time we need to drop the first dst.  This patch is pretty much
the same as the one for IPv4.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-02 00:06:09 -07:00
Leonardo Potenza
a22eb6faae [ATM] drivers/atm/iphase.c: compilation warning fix
Removed the warning messages:
drivers/atm/iphase.c:961: warning: 'tcnter' defined but not used
drivers/atm/iphase.c:963: warning: 'xdump' defined but not used

tcnter and xdump() are used only in debug build

Signed-off-by: Leonardo Potenza <lpotenza@inwind.it>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-02 00:03:00 -07:00
Benoit Boissinot
eac55bf970 IPv6: do not create temporary adresses with too short preferred lifetime
From RFC341:
A temporary address is created only if this calculated Preferred
Lifetime is greater than REGEN_ADVANCE time units.  In particular, an
implementation must not create a temporary address with a zero
Preferred Lifetime.

Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-02 00:01:35 -07:00
Benoit Boissinot
c6fbfac2e6 IPv6: only update the lifetime of the relevant temporary address
When receiving a prefix information from a routeur, only update the
lifetimes of the temporary address associated with that prefix.

Otherwise if one deprecated prefix is advertized, all your temporary
addresses will become deprecated.

Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-02 00:00:58 -07:00
Dave Young
1905f6c736 bluetooth : __rfcomm_dlc_close lock fix
Lockdep warning will be trigged while rfcomm connection closing.

The locks taken in rfcomm_dev_add:
rfcomm_dev_lock --> d->lock

In __rfcomm_dlc_close:
d->lock --> rfcomm_dev_lock (in rfcomm_dev_state_change)

There's two way to fix it, one is in rfcomm_dev_add we first locking
d->lock then the rfcomm_dev_lock

The other (in this patch), remove the locking of d->lock for
rfcomm_dev_state_change because just locking "d->state = BT_CLOSED;"
is enough.

[  295.002046] =======================================================
[  295.002046] [ INFO: possible circular locking dependency detected ]
[  295.002046] 2.6.25-rc7 #1
[  295.002046] -------------------------------------------------------
[  295.002046] krfcommd/2705 is trying to acquire lock:
[  295.002046]  (rfcomm_dev_lock){-.--}, at: [<f89a090a>] rfcomm_dev_state_change+0x6a/0xd0 [rfcomm]
[  295.002046] 
[  295.002046] but task is already holding lock:
[  295.002046]  (&d->lock){--..}, at: [<f899c533>] __rfcomm_dlc_close+0x43/0xd0 [rfcomm]
[  295.002046] 
[  295.002046] which lock already depends on the new lock.
[  295.002046] 
[  295.002046] 
[  295.002046] the existing dependency chain (in reverse order) is:
[  295.002046] 
[  295.002046] -> #1 (&d->lock){--..}:
[  295.002046]        [<c0149b23>] check_prev_add+0xd3/0x200
[  295.002046]        [<c0149ce5>] check_prevs_add+0x95/0xe0
[  295.002046]        [<c0149f6f>] validate_chain+0x23f/0x320
[  295.002046]        [<c014b7b1>] __lock_acquire+0x1c1/0x760
[  295.002046]        [<c014c349>] lock_acquire+0x79/0xb0
[  295.002046]        [<c03d6b99>] _spin_lock+0x39/0x80
[  295.002046]        [<f89a01c0>] rfcomm_dev_add+0x240/0x360 [rfcomm]
[  295.002046]        [<f89a047e>] rfcomm_create_dev+0x6e/0xe0 [rfcomm]
[  295.002046]        [<f89a0823>] rfcomm_dev_ioctl+0x33/0x60 [rfcomm]
[  295.002046]        [<f899facc>] rfcomm_sock_ioctl+0x2c/0x50 [rfcomm]
[  295.002046]        [<c0363d38>] sock_ioctl+0x118/0x240
[  295.002046]        [<c0194196>] vfs_ioctl+0x76/0x90
[  295.002046]        [<c0194446>] do_vfs_ioctl+0x56/0x140
[  295.002046]        [<c0194569>] sys_ioctl+0x39/0x60
[  295.002046]        [<c0104faa>] syscall_call+0x7/0xb
[  295.002046]        [<ffffffff>] 0xffffffff
[  295.002046] 
[  295.002046] -> #0 (rfcomm_dev_lock){-.--}:
[  295.002046]        [<c0149a84>] check_prev_add+0x34/0x200
[  295.002046]        [<c0149ce5>] check_prevs_add+0x95/0xe0
[  295.002046]        [<c0149f6f>] validate_chain+0x23f/0x320
[  295.002046]        [<c014b7b1>] __lock_acquire+0x1c1/0x760
[  295.002046]        [<c014c349>] lock_acquire+0x79/0xb0
[  295.002046]        [<c03d6639>] _read_lock+0x39/0x80
[  295.002046]        [<f89a090a>] rfcomm_dev_state_change+0x6a/0xd0 [rfcomm]
[  295.002046]        [<f899c548>] __rfcomm_dlc_close+0x58/0xd0 [rfcomm]
[  295.002046]        [<f899d44f>] rfcomm_recv_ua+0x6f/0x120 [rfcomm]
[  295.002046]        [<f899e061>] rfcomm_recv_frame+0x171/0x1e0 [rfcomm]
[  295.002046]        [<f899e357>] rfcomm_run+0xe7/0x550 [rfcomm]
[  295.002046]        [<c013c18c>] kthread+0x5c/0xa0
[  295.002046]        [<c0105c07>] kernel_thread_helper+0x7/0x10
[  295.002046]        [<ffffffff>] 0xffffffff
[  295.002046] 
[  295.002046] other info that might help us debug this:
[  295.002046] 
[  295.002046] 2 locks held by krfcommd/2705:
[  295.002046]  #0:  (rfcomm_mutex){--..}, at: [<f899e2eb>] rfcomm_run+0x7b/0x550 [rfcomm]
[  295.002046]  #1:  (&d->lock){--..}, at: [<f899c533>] __rfcomm_dlc_close+0x43/0xd0 [rfcomm]
[  295.002046] 
[  295.002046] stack backtrace:
[  295.002046] Pid: 2705, comm: krfcommd Not tainted 2.6.25-rc7 #1
[  295.002046]  [<c0128a38>] ? printk+0x18/0x20
[  295.002046]  [<c014927f>] print_circular_bug_tail+0x6f/0x80
[  295.002046]  [<c0149a84>] check_prev_add+0x34/0x200
[  295.002046]  [<c0149ce5>] check_prevs_add+0x95/0xe0
[  295.002046]  [<c0149f6f>] validate_chain+0x23f/0x320
[  295.002046]  [<c014b7b1>] __lock_acquire+0x1c1/0x760
[  295.002046]  [<c014c349>] lock_acquire+0x79/0xb0
[  295.002046]  [<f89a090a>] ? rfcomm_dev_state_change+0x6a/0xd0 [rfcomm]
[  295.002046]  [<c03d6639>] _read_lock+0x39/0x80
[  295.002046]  [<f89a090a>] ? rfcomm_dev_state_change+0x6a/0xd0 [rfcomm]
[  295.002046]  [<f89a090a>] rfcomm_dev_state_change+0x6a/0xd0 [rfcomm]
[  295.002046]  [<f899c548>] __rfcomm_dlc_close+0x58/0xd0 [rfcomm]
[  295.002046]  [<f899d44f>] rfcomm_recv_ua+0x6f/0x120 [rfcomm]
[  295.002046]  [<f899e061>] rfcomm_recv_frame+0x171/0x1e0 [rfcomm]
[  295.002046]  [<c014abd9>] ? trace_hardirqs_on+0xb9/0x130
[  295.002046]  [<c03d6e89>] ? _spin_unlock_irqrestore+0x39/0x70
[  295.002046]  [<f899e357>] rfcomm_run+0xe7/0x550 [rfcomm]
[  295.002046]  [<c03d4559>] ? __sched_text_start+0x229/0x4c0
[  295.002046]  [<c0120000>] ? cpu_avg_load_per_task+0x20/0x30
[  295.002046]  [<f899e270>] ? rfcomm_run+0x0/0x550 [rfcomm]
[  295.002046]  [<c013c18c>] kthread+0x5c/0xa0
[  295.002046]  [<c013c130>] ? kthread+0x0/0xa0
[  295.002046]  [<c0105c07>] kernel_thread_helper+0x7/0x10
[  295.002046]  =======================

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-01 23:59:06 -07:00
Dave Young
68845cb2c8 bluetooth : use lockdep sub-classes for diffrent bluetooth protocol
'rfcomm connect' will trigger lockdep warnings which is caused by
locking diffrent kinds of bluetooth sockets at the same time.

So using sub-classes per AF_BLUETOOTH sub-type for lockdep.

Thanks for the hints from dave jones.

---
> From: Dave Jones <davej@codemonkey.org.uk>
> Date: Thu, 27 Mar 2008 12:21:56 -0400
>
> > Mar 27 08:10:57 localhost kernel: Pid: 3611, comm: obex-data-serve Not tainted 2.6.25-0.121.rc5.git4.fc9 #1
> > Mar 27 08:10:57 localhost kernel:  [__lock_acquire+2287/3089] __lock_acquire+0x8ef/0xc11
> > Mar 27 08:10:57 localhost kernel:  [sched_clock+8/11] ? sched_clock+0x8/0xb
> > Mar 27 08:10:57 localhost kernel:  [lock_acquire+106/144] lock_acquire+0x6a/0x90
> > Mar 27 08:10:57 localhost kernel:  [<f8bd9321>] ? l2cap_sock_bind+0x29/0x108 [l2cap]
> > Mar 27 08:10:57 localhost kernel:  [lock_sock_nested+182/198] lock_sock_nested+0xb6/0xc6
> > Mar 27 08:10:57 localhost kernel:  [<f8bd9321>] ? l2cap_sock_bind+0x29/0x108 [l2cap]
> > Mar 27 08:10:57 localhost kernel:  [security_socket_post_create+22/27] ? security_socket_post_create+0x16/0x1b
> > Mar 27 08:10:57 localhost kernel:  [__sock_create+388/472] ? __sock_create+0x184/0x1d8
> > Mar 27 08:10:57 localhost kernel:  [<f8bd9321>] l2cap_sock_bind+0x29/0x108 [l2cap]
> > Mar 27 08:10:57 localhost kernel:  [kernel_bind+10/13] kernel_bind+0xa/0xd
> > Mar 27 08:10:57 localhost kernel:  [<f8dad3d7>] rfcomm_dlc_open+0xc8/0x294 [rfcomm]
> > Mar 27 08:10:57 localhost kernel:  [lock_sock_nested+187/198] ? lock_sock_nested+0xbb/0xc6
> > Mar 27 08:10:57 localhost kernel:  [<f8dae18c>] rfcomm_sock_connect+0x8b/0xc2 [rfcomm]
> > Mar 27 08:10:57 localhost kernel:  [sys_connect+96/125] sys_connect+0x60/0x7d
> > Mar 27 08:10:57 localhost kernel:  [__lock_acquire+1370/3089] ? __lock_acquire+0x55a/0xc11
> > Mar 27 08:10:57 localhost kernel:  [sys_socketcall+140/392] sys_socketcall+0x8c/0x188
> > Mar 27 08:10:57 localhost kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
---

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-01 23:58:35 -07:00
Jarek Poplawski
4965291acf [ROSE/AX25] af_rose: rose_release() fix
rose_release() doesn't release sockets properly, e.g. it skips
sock_orphan(), so OOPSes are triggered in sock_def_write_space(),
which was observed especially while ROSE skbs were kfreed from
ax25_frames_acked(). There is also sock_hold() and lock_sock() added -
similarly to ax25_release(). Thanks to Bernard Pidoux for substantial
help in debugging this problem.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Reported-and-tested-by: Bernard Pidoux <bpidoux@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-01 23:56:17 -07:00
Joy Latten
1edcf2e1ee [CRYPTO] xcbc: Fix crash when ipsec uses xcbc-mac with big data chunk
The kernel crashes when ipsec passes a udp packet of about 14XX bytes
of data to aes-xcbc-mac.

It seems the first xxxx bytes of the data are in first sg entry,
and remaining xx bytes are in next sg entry. But we don't 
check next sg entry to see if we need to go look the page up.

I noticed in hmac.c, we do a scatterwalk_sg_next(), to do this check
and possible lookup, thus xcbc.c needs to use this routine too.

A 15-hour run of an ipsec stress test sending streams of tcp and
udp packets of various sizes,  using this patch and 
aes-xcbc-mac completed successfully, so hopefully this fixes the
problem.
 
Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-04-02 14:36:09 +08:00
Stephen Smalley
0794c66d49 selinux: handle files opened with flags 3 by checking ioctl permission
Handle files opened with flags 3 by checking ioctl permission.

Default to returning FILE__IOCTL from file_to_av() if the f_mode has neither
FMODE_READ nor FMODE_WRITE, and thus check ioctl permission on exec or
transfer, thereby validating such descriptors early as with normal r/w
descriptors and catching leaks of them prior to attempted usage.

Signed-off-by:  Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
2008-04-02 16:05:52 +11:00
Bjorn Helgaas
044dfc99fe V4L/DVB (7486): radio-cadet: wrap PNP probe code in #ifdef CONFIG_PNP
Wrap PNP probe code in #ifdef CONFIG_PNP.

Without this change, we'll have unresolved references to pnp_get_resource()
function when CONFIG_PNP=n.  (This is a new interface that's not in mainline
yet.)

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:47 -03:00
Adrian Bunk
19ac111c03 V4L/DVB (7485): v4l2-int-device.c: add MODULE_LICENSE
Now that it's in an own module it needs a MODULE_LICENSE.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:47 -03:00
Steven Toth
4b15b5ec36 V4L/DVB (7466): Avoid minor model number warning when an OEM HVR1250 board is detected
Avoid minor model number warning when an OEM HVR1250 board is detected.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:46 -03:00
Steven Toth
c88133ecb3 V4L/DVB (7465): Fix eeprom parsing and errors on the HVR1800 products
On some models, the valid Hauppauge eeprom data begins at a different offset.
This patch avoid unfriendly 'corrupt' eeprom errors during driver load.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:45 -03:00
Steven Toth
31c8cc9742 V4L/DVB (7464): Convert driver to use a single SRAM memory map
This reduces the memory footprint and removes the need to
manually configure each map, which lead to a bug where
the Fusion EXP 5 board broke for a while.
This also fixes digital support again for
the DViCO FusionHDTV5Express.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:45 -03:00
Cyrill Gorcunov
1a002ebf60 V4L/DVB (7461): bttv: fix missed index check
We should check for proper index first

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:45 -03:00
Robert Fitzsimons
c137918978 V4L/DVB (7400): bttv: Add a radio compat_ioctl file operation
Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:45 -03:00
Robert Fitzsimons
1b0690134e V4L/DVB (7278): bttv: Re-enable radio tuner support for VIDIOCGFREQ/VIDIOCSFREQ ioctls
Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:44 -03:00
Robert Fitzsimons
5cd3955cb8 V4L/DVB (7277): bttv: Re-enabling radio support requires the use of struct bttv_fh
A number of the radio tuner ioctl functions are shared with the TV
tuner, these functions require a struct bttv_fh data structure to be
allocated and initialized.

Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-01 19:35:44 -03:00
Linus Torvalds
0e81a8ae37 Linux 2.6.25-rc8 2008-04-01 12:44:26 -07:00
Vladimir Koutny
d43c7b37ad mac80211: correct use_short_preamble handling
ERP IE bit for preamble mode is 0 for short and 1 for long, not the other
way around. This fixes the value reported to the driver via
bss_conf->use_short_preamble field.

Signed-off-by: Vladimir Koutny <vlado@ksp.sk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 15:44:08 -04:00
Michael Buesch
e645890115 b43: Fix PCMCIA IRQ routing
This fixes the IRQ routing on PCMCIA devices.
With this patch the card will finally be able to receive IRQs.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 15:44:08 -04:00
Michael Buesch
539e6f8cff b43: Add DMA mapping failure messages
This adds messages for some DMA mapping failures.
These are useful for debugging DMA address problems, as they appear
on x86_64 machines with IOMMU enabled.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 15:44:08 -04:00
Jan Niehusmann
64f851e410 mac80211: trigger ieee80211_sta_work after opening interface
ieee80211_sta_work is disabled while network interface
is down. Therefore, if you configure wireless parameters
before bringing the interface up, these configurations are
not yet effective and association fails.

A workaround from userspace is calling a command like
'iwconfig wlan0 ap any' after the interface is brought up.

To fix this behaviour, trigger execution of ieee80211_sta_work from
ieee80211_open when in STA or IBSS mode.

Signed-off-by: Jan Niehusmann <jan@gondor.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-01 15:44:07 -04:00
Christoph Lameter
00460dd5f4 Fix undefined count_partial if !CONFIG_SLABINFO
Small typo in the patch recently merged to avoid the unused symbol
message for count_partial(). Discussion thread with confirmation of fix at
http://marc.info/?t=120696854400001&r=1&w=2

Typo in the check if we need the count_partial function that was
introduced by 53625b4204

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-01 12:44:06 -07:00
Linus Torvalds
670e23ceb1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: fw-ohci: plug dma memory leak in AR handler
2008-04-01 11:46:14 -07:00
Linus Torvalds
10027471a3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25:
  sh: Fix up uImage compression type
  remove include/asm-sh/floppy.h
  sh: Fix TIF_USEDFPU clearing under FPU emulation.
  sh: Fix occasional FPU register corruption under preempt.
2008-04-01 11:45:48 -07:00
Linus Torvalds
61434392f7 Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/ralf/upstream-linus
* 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/ralf/upstream-linus:
  [MIPS] XSS1500: Fix compilation
  [MIPS] Bigsur: make defconfig more useful.
  [MIPS] Alchemy: work around clock misdetection on early Au1000
  [MIPS] Add missing 4KEC TLB refill handler
  [MIPS] BCM1480: Fix PCI/HT IO access
  [MIPS] Fix the installation condition of MIPS clocksource
  [MIPS] Check for GCC r10k-cache-barrier support
  [MIPS] I8253: Export i2853_lock to modules.
  [MIPS] VPE loader: Check result of memory allocation.
2008-04-01 11:31:31 -07:00
Oliver Schuster
0e45adb8f5 [WATCHDOG] Fix it8712f_wdt.c wrong byte order accessing WDT_TIMEOUT
This patch corrects an error in the driver it8712f_wdt.  You cannot set
the 16-bit WDT_TIMEOUT access as a 16-bit outw, because the byte
ordering will be wrong.  So just do the high 8 bits as a separate
access.

Signed-off-by: Oliver Schuster <olivers137@aol.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-01 11:31:05 -07:00
Linus Torvalds
d5f1a21ca0 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 4875/1: Add MODULE_ALIAS to ixp4xx-beeper module
  [ARM] 4873/1: Fix ITE 8152 interrupt demux
  [ARM] 4878/1: Add oabi shim for fstatat64
2008-04-01 11:26:26 -07:00
Linus Torvalds
1f4cfbaa2b Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6:
  hwmon: (w83781d) Fix I/O resource conflict with PNP
2008-04-01 11:25:37 -07:00
Linus Torvalds
90c9d4f8ee Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: Remove incorrect use of preempt_count() from leds-gpio
  leds: Fix potential leds-gpio oops
2008-04-01 11:24:20 -07:00
Linus Torvalds
3344203948 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: make sure input interfaces pin parent input devices
  Input: apm-power - fix crash when unloading modules
  Input: pxa27x - fix keypad KPC macros
2008-04-01 11:23:05 -07:00
Rafael J. Wysocki
7731ce63d9 ACPI PM: Restore the 2.6.24 suspend ordering
Some time ago it turned out that our suspend code ordering broke some
NVidia-based systems that hung if _PTS was executed with one of the PCI
devices, specifically a USB controller, in a low power state.

Then, it was noticed that the suspend code ordering was not compliant
with ACPI 1.0, although it was compliant with ACPI 2.0 (and later), and
it was argued that the code had to be changed for that reason (ref.
http://bugzilla.kernel.org/show_bug.cgi?id=9528).

So we did, but evidently we did wrong, because it's now turning out that
some systems have been broken by this change. Refs:
	http://bugzilla.kernel.org/show_bug.cgi?id=10340
	https://bugzilla.novell.com/show_bug.cgi?id=374217#c16

[ I said at that time that something like this might happend, but the
  majority of people involved thought that it was improbable due to the
  necessity to preserve the compliance of hardware with ACPI 1.0. ]

This actually is a quite serious regression from 2.6.24.

Moreover, the ACPI 1.0 ordering of suspend code introduced another issue
that I have only noticed recently.  Namely, if the suspend of one of
devices fails, the already suspended devices will be resumed without
executing _WAK before, which leads to problems on some systems (for
example, in such situations thermal management is broken on my HP
nx6325).  Consequently, it also breaks suspend debugging on the affected
systems.

Note also, that the requirement to execute _PTS before suspending
devices does not really make sense, because the device in question may
be put into a low power state at run time for a reason unrelated to a
system-wide suspend.

For the reasons outlined above, the change of the suspend ordering
should be reverted, which is done by the patch below.

[ Felix Möller: "I am the reporter from the original Novell Bug:

	https://bugzilla.novell.com/show_bug.cgi?id=374217

  I just tried current git head (two hours ago) with the patch (the one
  from the beginning of this thread) from Rafael and without it.  With
  the patch my MacBook does suspend without it does not." ]

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Felix Möller <felix@derklecks.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-01 11:21:08 -07:00
Mikulas Patocka
cabce28ec0 plip: replace spin_lock_irq with spin_lock_irqsave in irq context
Plip uses spin_lock_irq/spin_unlock_irq in its IRQ handler (called from
parport IRQ handler), the latter enables interrupts without parport
subsystem IRQ handler expecting it.

The bug can be seen if you compile kernel with lock dependency checking
and use plip --- it produces a warning.

This patch changes it to spin_lock_irqsave/spin_lock_irqrestore, so that
it doesn't enable interrupts when already disabled.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-01 11:16:04 -07:00
Florian Fainelli
f9e8b78260 [MIPS] XSS1500: Fix compilation
This patch fixes the compilation of the Au1000 XSS1500
board setup and irqmap code.

Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01 15:46:34 +01:00
Ralf Baechle
0519649f7e [MIPS] Bigsur: make defconfig more useful.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01 15:46:34 +01:00
Sergei Shtylyov
758e285fac [MIPS] Alchemy: work around clock misdetection on early Au1000
Work around the CPU clock miscalculation on Au1000DA/HA/HB due the
sys_cpupll register being write-only, i.e. actually do what the comment
before cal_r4off() function advertised for years but the code failed at.
This is achieved by just giving user a chance to define the clock
explicitly  in the board config. via CONFIG_SOC_AU1000_FREQUENCY option,
defaulting to 396 MHz if the option is not given...

The patch is based on the AMD's big unpublished patch, the issue seems to
be an undocumented errata (or feature :-)...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01 15:46:34 +01:00
Thomas Bogendoerfer
b1ec4c8e48 [MIPS] Add missing 4KEC TLB refill handler
Early 4KEc were MIPS32r1 and therefore need some love to get a TLB
refill handler.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01 15:46:33 +01:00
Thomas Bogendoerfer
cf7b7e0b37 [MIPS] BCM1480: Fix PCI/HT IO access
- removed check for enable HT-PCI bridges, because some CFE version
  init only the needed one and scanning works even with disabled HT
  links
- implemented I/O access behind HT PCI busses
- fixed pci_map for IO resource behind PCI bridge

Tested with E100 and Tulip driver.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01 15:46:33 +01:00
Yoichi Yuasa
447cdf2628 [MIPS] Fix the installation condition of MIPS clocksource
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01 15:46:33 +01:00
Thomas Bogendoerfer
82933342c3 [MIPS] Check for GCC r10k-cache-barrier support
Check whether gcc supports -mr10-cache-barrier=1 and issue a cleaner
error message if not. This option is needed to build working SGI IP28
kernels.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01 15:46:33 +01:00
Ralf Baechle
a05e623f63 [MIPS] I8253: Export i2853_lock to modules.
This fixes:

  ERROR: "i8253_lock" [drivers/input/misc/pcspkr.ko] undefined!

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01 15:46:33 +01:00
Ralf Baechle
5408c490a4 [MIPS] VPE loader: Check result of memory allocation.
And while at it, make it a little cleaner.  Issue originally reported by
Tiejun Chen (tiejun.chen@windriver.com).

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01 15:46:33 +01:00
Dmitry Torokhov
a7097ff89c Input: make sure input interfaces pin parent input devices
Recent driver core change causes references to parent devices being
dropped early, at device_del() time, as opposed to when all children
are freed. This causes oops in evdev with grabbed devices. Take the
reference to the parent input device ourselves to ensure that it
stays around long enough.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-04-01 00:22:53 -04:00
Dmitry Torokhov
399f486286 Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus 2008-04-01 00:22:26 -04:00
Joonwoo Park
f83f1768f8 [LLC]: skb allocation size for responses
Allocate the skb for llc responses with the received packet size by
using the size adjustable llc_frame_alloc.
Don't allocate useless extra payload.
Cleanup magic numbers.

So, this fixes oops.
Reported by Jim Westfall:
kernel: skb_over_panic: text:c0541fc7 len:1000 put:997 head:c166ac00 data:c166ac2f tail:0xc166b017 end:0xc166ac80 dev:eth0
kernel: ------------[ cut here ]------------
kernel: kernel BUG at net/core/skbuff.c:95!

Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-31 21:02:47 -07:00
YOSHIFUJI Hideaki
b50660f1fe [IP] UDP: Use SEQ_START_TOKEN.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-31 19:38:15 -07:00
Adrian Bunk
5e0751f57a [NET]: Remove Documentation/networking/sk98lin.txt
Since the driver is gone there's no point in keeping the documentation.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-31 19:36:47 -07:00
Adrian Bunk
f4c4b4a631 [ATM] atm/idt77252.c: Make 2 functions static
This patch makes the following needlessly global functions static:
- idt77252_send()
- idt77252_dev_close()

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-31 19:35:52 -07:00
Adrian Bunk
0ee897d43e [ATM]: Make atm/he.c:read_prom_byte() static
This patch makes the needlessly global read_prom_byte() static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-31 19:34:44 -07:00