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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
net: Fix recursive descent in __scm_destroy().
iwl3945: fix deadlock on suspend
iwl3945: do not send scan command if channel count zero
iwl3945: clear scanning bits upon failure
ath5k: correct handling of rx status fields
zd1211rw: Add 2 device IDs
Fix logic error in rfkill_check_duplicity
iwlagn: avoid sleep in softirq context
iwlwifi: clear scanning bits upon failure
Revert "ath5k: honor FIF_BCN_PRBRESP_PROMISC in STA mode"
tcp: Fix recvmsg MSG_PEEK influence of blocking behavior.
netfilter: netns ct: walk netns list under RTNL
ipv6: fix run pending DAD when interface becomes ready
net/9p: fix printk format warnings
net: fix packet socket delivery in rx irq handler
xfrm: Have af-specific init_tempsel() initialize family field of temporary selector
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This patch fixes iwl3945 deadlock during suspend by moving notify_mac out
of iwl3945 mutex. This is a portion of the same fix for iwlwifi by Tomas.
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Do not send scan command if no channels to scan.
This avoids a Microcode error as reported in:
http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1650
http://bugzilla.kernel.org/show_bug.cgi?id=11806
http://marc.info/?l=linux-wireless&m=122437145211886&w=2
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch ensures we clear any scan status bit when
an error occurs while sending the scan command. It is
the implementation of patch:
"iwlwifi: clear scanning bits upon failure"
for iwl3945.
Signed-off-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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ath5k_rx_status fields rs_antenna and rs_more are u8s, but we
were setting them with bitwise ANDs of 32-bit values.
As a consequence, jumbo frames would not be discarded as intended.
Then, because the hw rate value of such frames is zero, and, since
"ath5k: rates cleanup", we do not fall back to the basic rate, such
packets would trigger the following WARN_ON:
------------[ cut here ]------------
WARNING: at net/mac80211/rx.c:2192 __ieee80211_rx+0x4d/0x57e [mac80211]()
Modules linked in: ath5k af_packet sha256_generic aes_i586 aes_generic cbc loop i915 drm binfmt_misc acpi_cpufreq fan container nls_utf8 hfsplus dm_crypt dm_mod kvm_intel kvm fuse sbp2 snd_hda_intel snd_pcm_oss snd_pcm snd_mixer_oss snd_seq_dummy snd_seq_oss arc4 joydev hid_apple ecb snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device usbhid appletouch mac80211 sky2 snd ehci_hcd ohci1394 bitrev crc32 sr_mod cdrom rtc sg uhci_hcd snd_page_alloc cfg80211 ieee1394 thermal ac battery processor button evdev unix [last unloaded: ath5k]
Pid: 0, comm: swapper Tainted: G W 2.6.28-rc2-wl #14
Call Trace:
[<c0123d1e>] warn_on_slowpath+0x41/0x5b
[<c012005d>] ? sched_debug_show+0x31e/0x9c6
[<c012489f>] ? vprintk+0x369/0x389
[<c0309539>] ? _spin_unlock_irqrestore+0x54/0x58
[<c011cd8f>] ? try_to_wake_up+0x14f/0x15a
[<f81918cb>] __ieee80211_rx+0x4d/0x57e [mac80211]
[<f828872a>] ath5k_tasklet_rx+0x5a1/0x5e4 [ath5k]
[<c013b9cd>] ? clockevents_program_event+0xd4/0xe3
[<c01283a9>] tasklet_action+0x94/0xfd
[<c0127d19>] __do_softirq+0x8c/0x13e
[<c0127e04>] do_softirq+0x39/0x55
[<c0128082>] irq_exit+0x46/0x85
[<c010576c>] do_IRQ+0x9a/0xb2
[<c010461c>] common_interrupt+0x28/0x30
[<f80e934a>] ? acpi_idle_enter_bm+0x2ad/0x31b [processor]
[<c02976bf>] cpuidle_idle_call+0x65/0x9a
[<c010262c>] cpu_idle+0x76/0xa6
[<c02fb402>] rest_init+0x62/0x64
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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07fa/1196
Bewan BWIFI-USB54AR: Tested by night1308, this device is a ZD1211B with
an AL2230S radio.
0ace/b215
HP 802.11abg: Tested by Robert Philippe
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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__ieee80211_tasklet_handler -> __ieee80211_rx ->
__ieee80211_rx_handle_packet -> ieee80211_invoke_rx_handlers ->
ieee80211_rx_h_decrypt -> ieee80211_crypto_tkip_decrypt ->
ieee80211_tkip_decrypt_data -> iwl4965_mac_update_tkip_key ->
iwl_scan_cancel_timeout -> msleep
Ooops!
Avoid the sleep by changing iwl_scan_cancel_timeout with
iwl_scan_cancel and simply returning on failure if the scan persists.
This will cause hardware decryption to fail and we'll handle a few more
frames with software decryption.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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In iwl_bg_request_scan function, if we could not send a
scan command it will go to done.
In done it does the right thing to call mac80211 with
scan complete, but the problem is STATUS_SCAN_HW is still
set causing any future scan to fail. Fix by clearing the scanning status
bits if scan fails.
Signed-off-by: Mohamed Abbas <mohamed.abbas@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Unfortunately, the result was that mac80211 didn't see all the beacons
it actually wanted to see. This caused lost associations.
Hopefully we can revisit this when mac80211 is less greedy about seeing
beacons directly...
This reverts commit 063279062a8c530cc90fb77797db16c49c905b26.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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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:
ieee1394: dv1394: fix possible deadlock in multithreaded clients
ieee1394: raw1394: fix possible deadlock in multithreaded clients
ieee1394: struct device - replace bus_id with dev_name(), dev_set_name()
firewire: struct device - replace bus_id with dev_name(), dev_set_name()
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Fix a possible though highly unlikely deadlock:
Thread A: Thread B:
- acquire mmap_sem - dv1394_ioctl/read/write()
- dv1394_mmap() - acquire video->mtx
- acquire video->mtx - copy_to/from_user(), possible page fault:
acquire mmap_sem
The simplest fix is to use mutex_trylock() instead of mutex_lock() in
dv1394_mmap(). This changes the behavior under contention in a way
which is visible to userspace clients. However, my guess is that no
clients exist which use mmap vs. ioctl/read/write on the dv1394
character device file interface in concurrent threads.
Reported-by: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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Regression in 2.6.28-rc1: When I added the new state_mutex which
prevents corruption of raw1394's internal state when accessed by
multithreaded client applications, the following possible though
highly unlikely deadlock slipped in:
Thread A: Thread B:
- acquire mmap_sem - raw1394_write() or raw1394_ioctl()
- raw1394_mmap() - acquire state_mutex
- acquire state_mutex - copy_to/from_user(), possible page fault:
acquire mmap_sem
The simplest fix is to use mutex_trylock() instead of mutex_lock() in
raw1394_mmap(). This changes the behavior under contention in a way
which is visible to userspace clients. However, since multithreaded
access was entirely buggy before state_mutex was added and libraw1394's
documentation advised application programmers to use a handle only in a
single thread, this change in behaviour should not be an issue in
practice at all.
Since we have to use mutex_trylock() in raw1394_mmap() regardless
whether /dev/raw1394 was opened with O_NONBLOCK or not, we now use
mutex_trylock() unconditionally everywhere for state_mutex, just to have
consistent behavior.
Reported-by: Johannes Weiner <hannes@saeurebad.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] SAM9 watchdog - supported on all SAM9 and CAP9 processors
[WATCHDOG] SAM9 watchdog - update for moved headers
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The SAM9 watchdog driver is usable on the whole family of AT91SAM9 and
CAP9 processors.
Update the configuration to indicate this and allow the driver to be selected.
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The architecture header files were recently moved from
include/asm-arm/mach-at91/ to arch/arm/mach-at91/include/mach/.
The SAM9 watchdog driver still includes a header from the old location.
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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* 'for-linus' of git://neil.brown.name/md:
md: linear: Fix a division by zero bug for very small arrays.
md: fix bug in raid10 recovery.
md: revert the recent addition of a call to the BLKRRPART ioctl.
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We currently oops with a divide error on starting a linear software
raid array consisting of at least two very small (< 500K) devices.
The bug is caused by the calculation of the hash table size which
tries to compute sector_div(sz, base) with "base" being zero due to
the small size of the component devices of the array.
Fix this by requiring the hash spacing to be at least one which
implies that also "base" is non-zero.
This bug has existed since about 2.6.14.
Cc: stable@kernel.org
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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Adding a spare to a raid10 doesn't cause recovery to start.
This is due to an silly type in
commit 6c2fce2ef6b4821c21b5c42c7207cb9cf8c87eda
and so is a bug in 2.6.27 and .28-rc.
Thanks to Thomas Backlund for bisecting to find this.
Cc: Thomas Backlund <tmb@mandriva.org>
Cc: stable@kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
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It turns out that it is only safe to call blkdev_ioctl when the device
is actually open (as ->bd_disk is set to NULL on last close). And it
is quite possible for do_md_stop to be called when the device is not
open. So discard the call to blkdev_ioctl(BLKRRPART) which was
added in
commit 934d9c23b4c7e31840a895ba4b7e88d6413c81f3
It is just as easy to call this ioctl from userspace when needed (on
mdadm -S) so leave it out of the kernel
Signed-off-by: NeilBrown <neilb@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc: Fix "unused variable" warning in pci_dlpar.c
powerpc/cell: Fix compile error in ras.c
powerpc/ps3: Fix compile error in ps3-lpm.c
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Compiling with CONFIG_SMP = n and CONFIG_PS3_LPM != n gives this error:
drivers/ps3/ps3-lpm.c:838: error: implicit declaration of function 'get_hard_smp_processor_id'
This fixes it. We have to include <asm/smp.h> rather than
<linux/smp.h> because the UP definition of get_hard_smp_processor_id()
is in <asm/smp.h>, and <linux/smp.h> only includes <asm/smp.h> if
CONFIG_SMP = y.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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