Because "name" is static, it can be occasionally be filled with
somewhat garbage if two processes read /proc/net/snmp6.

Also, remove useless casts and "-1" -- snprintf() correctly terminates it's
output.
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If the device is suspended with the cable disconnected, then
resumed with the cable connected, dev->open is called before
resume. During resume, we request an IRQ, but the IRQ was
already assigned during dev->open, resulting in the warning
shown below.

Don't request an IRQ if the device is running.

Call Trace:
 [<c011b89a>] warn_on_slowpath+0x40/0x59
 [<c023df15>] raw_pci_read+0x4d/0x55
 [<c023dff3>] pci_read+0x1c/0x21
 [<c01bcd81>] __pci_find_next_cap_ttl+0x44/0x70
 [<c01bce86>] __pci_find_next_cap+0x1a/0x1f
 [<c01bcef9>] pci_find_capability+0x28/0x2c
 [<c01c4144>] pci_msi_check_device+0x53/0x62
 [<c01c49c2>] pci_enable_msi+0x3a/0x1cd
 [<e019f17b>] atl2_write_phy_reg+0x40/0x5f [atl2]
 [<c01061b1>] dma_generic_alloc_coherent+0x0/0xd7
 [<e019f107>] atl2_request_irq+0x15/0x49 [atl2]
 [<e01a1481>] atl2_open+0x20b/0x297 [atl2]
 [<c024a35c>] dev_open+0x62/0x91
 [<c0248b9a>] dev_change_flags+0x93/0x141
 [<c024f308>] do_setlink+0x238/0x2d5
 [<c02501b2>] rtnl_setlink+0xa9/0xbf
 [<c0297f0c>] mutex_lock+0xb/0x19
 [<c024ffa7>] rtnl_dump_ifinfo+0x0/0x69
 [<c0250109>] rtnl_setlink+0x0/0xbf
 [<c024fe42>] rtnetlink_rcv_msg+0x185/0x19f
 [<c0240fd1>] sock_rmalloc+0x23/0x57
 [<c024fcbd>] rtnetlink_rcv_msg+0x0/0x19f
 [<c0259457>] netlink_rcv_skb+0x2d/0x71
 [<c024fcb7>] rtnetlink_rcv+0x14/0x1a
 [<c025929e>] netlink_unicast+0x184/0x1e4
 [<c025992a>] netlink_sendmsg+0x233/0x240
 [<c023f405>] sock_sendmsg+0xb7/0xd0
 [<c0129131>] autoremove_wake_function+0x0/0x2b
 [<c0129131>] autoremove_wake_function+0x0/0x2b
 [<c0147796>] mempool_alloc+0x2d/0x9e
 [<c020c923>] scsi_pool_alloc_command+0x35/0x4f
 [<c0297f0c>] mutex_lock+0xb/0x19
 [<c028e867>] unix_stream_recvmsg+0x357/0x3e2
 [<c01b81c9>] copy_from_user+0x23/0x4f
 [<c02452ea>] verify_iovec+0x3e/0x6c
 [<c023f5ab>] sys_sendmsg+0x18d/0x1f0
 [<c023ffa8>] sys_recvmsg+0x146/0x1c8
 [<c0240016>] sys_recvmsg+0x1b4/0x1c8
 [<c0118f48>] __wake_up+0xf/0x15
 [<c02586cd>] netlink_table_ungrab+0x17/0x19
 [<c01b83ba>] copy_to_user+0x25/0x3b
 [<c023fe4a>] move_addr_to_user+0x50/0x68
 [<c0240266>] sys_getsockname+0x6f/0x9a
 [<c0240280>] sys_getsockname+0x89/0x9a
 [<c015046a>] do_wp_page+0x3ae/0x41a
 [<c0151525>] handle_mm_fault+0x4c5/0x540
 [<c02405d0>] sys_socketcall+0x176/0x1b0
 [<c010376d>] sysenter_do_call+0x12/0x21
Signed-off-by: NAlan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: NJay Cliburn <jcliburn@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In ip6mr.c, /proc entries /proc/net/ip6_mr_cache and /proc/net/ip6_mr_vif
are opened with seq_open_private(), thus seq_release_private() should be 
used to release them.
Should fix a small memory leak.
Signed-off-by: NBenjamin Thery <benjamin.thery@bull.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

nla_nest_start() might return NULL, causing a NULL pointer dereference.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NVernon Sauder <VernonInHand@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add AX_MEDIUM_ENCK also when speed = 10/100Mbps. This allows my belkin
f5d5055 to work with my 100Mbps switch and with an old 10Mbps ISA card.
Without this patch, the card is recognized and the interface is brought
up fine, but no packets actually flow through the interface.
Signed-off-by: NPantelis Koukousoulas <pktoss@gmail.com>
Acked-by: NDavid Hollis <dhollis@davehollis.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When mv643xx_eth allocates skbuffs, it adds
'dma_get_cache_alignment() - 1' to the length it needs, so that it can
align the skb's ->data pointer to a cache boundary.  When checking
whether a transmitted skbuff can be reused as a receive buffer, these
bytes needs to be included into the minimum bound for the recycle check.
Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Update to change of mii_bus interface and fix some warning.
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

    inet_sk_rebuild_header() does a new route lookup if the dst_entry
    associated with a socket becomes stale. However inet_sk_rebuild_header()
    didn't use struct flowi->flags, causing the route lookup to
    fail for foreign-bound IP_TRANSPARENT sockets, causing an error
    state to be set for the sockets in question.
Signed-off-by: NBalazs Scheidler <bazsi@balabit.hu>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

    udp_sendmsg() didn't fill struct flowi->flags, which means that
    the route lookup would fail for non-local IPs even if the
    IP_TRANSPARENT sockopt was set.

    This prevents sendto() to work properly for UDP sockets, whereas
    bind(foreign-ip) + connect() + send() worked fine.
Signed-off-by: NBalazs Scheidler <bazsi@balabit.hu>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

rxfd->frag_info is a __le64, IPG_RFI_FRAGLEN is a cpu-endian
constant and wants to be outside of the le64_to_cpu. Fixed
in multiple places.

Also an occurrence where le64_to_cpu was used instead of cpu_to_le64
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A previous patch, 51e2a384, made
genphy_config_aneg() not restart aneg by calling genphy_restart_aneg() if
the advertisement hadn't changed.

But, genphy_restart_aneg() doesn't just restart aneg, it may also *enable*
aneg or un-isolate the PHY from the MII (those functions are controlled by
the same register).  The code to avoid calling genphy_restart_aneg() didn't
consider this.

So, modify genphy_config_aneg() to also check if the PHY needs to have aneg
enabled or be un-isolated before deciding not to restart aneg.

This caused a problem with certain Davicom PHYs, as that driver isolates
the PHY (why?) before calling genphy_config_aneg() and expects the PHY to
be un-isolated by that function.
Signed-off-by: NTrent Piepho <tpiepho@freescale.com>
Reported-by: NScott Wood <scottwood@freescale.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This is the minimal patch to fix endian mismatches.  These are
probably bugs on big-endian arches, noops on little endian.

jme_rxsum_ok could be improved to directly take a __le16 and
change all of the masks/sets to be in little-endian, but
has not been done here to keep the patch small.
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

All MDIO bus drivers currently name bus with "%x" format.
There is one exception where mv643xx_eth driver is using "%d".
Phy address on the bus uses format "%02x".

Fixing phy name example to match all real life MDIO drivers.
Signed-off-by: NPaulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Several device drivers try to do things like netif_carrier_off()
before register_netdev() is invoked.  This is bogus, but too many
drivers do this to fix them all up in one go.
Reported-by: NFolkert van Heusden <folkert@vanheusden.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

  CC [M]  net/phonet/af_phonet.o
net/phonet/af_phonet.c: In function `pn_socket_create':
net/phonet/af_phonet.c:38: sorry, unimplemented: inlining failed in call to 'phonet_proto_put': function body not available
net/phonet/af_phonet.c:99: sorry, unimplemented: called from here
make[3]: *** [net/phonet/af_phonet.o] Error 1
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

  CC [M]  drivers/net/ixgbe/ixgbe_main.o
drivers/net/ixgbe/ixgbe_main.c: In function `ixgbe_intr':
drivers/net/ixgbe/ixgbe_main.c:1290: sorry, unimplemented: inlining failed in call to 'ixgbe_irq_enable': function body not available
drivers/net/ixgbe/ixgbe_main.c:1312: sorry, unimplemented: called from here
make[4]: *** [drivers/net/ixgbe/ixgbe_main.o] Error 1
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Acked-by: NPeter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

As number of TX queues in unrelated to number of CPU's we remove this test
and just make sure nxtq never gets exceeded.
Signed-off-by: NRobert Olsson <robert.olsson@its.uu.se>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Similarly to IPv6 ip6_mr_init() (fixed last week), the order of cleanup
operations in the error/exit section of ip_mr_init() is completely 
inversed. It should be the other way around.
Also a del_timer() is missing in the error path.

I should have guessed last week that this same error existed in ipmr.c
too, as ip6mr.c is largely inspired by ipmr.c.
Signed-off-by: NBenjamin Thery <benjamin.thery@bull.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

So I dug deeper into the DMA problems I had with iwlagn and a kind soul
helped me in that he said something about pci-e alignment and mentioned
the iwl_rx_allocate function to check for crossing 4KB boundaries. Since
there's 8KB A-MPDU support, crossing 4k boundaries didn't seem like
something the device would fail with, but when I looked into the
function for a minute anyway I stumbled over this little gem:

	BUG_ON(rxb->dma_addr & (~DMA_BIT_MASK(36) & 0xff));

Clearly, that is a totally bogus check, one would hope the compiler
removes it entirely. (Think about it)

After fixing it, I obviously ran into it, nothing guarantees the
alignment the way you want it,  because of the way skbs and their
headroom are allocated. I won't explain that here nor double-check that
I'm right, that goes beyond what most of the CC'ed people care about.

So then I came up with the patch below, and so far my system has
survived minutes with 64K pages, when it would previously fail in
seconds. And I haven't seen a single instance of the TX bug either. But
when you see the patch it'll be pretty obvious to you why.

This should fix the following reported kernel bugs:

http://bugzilla.kernel.org/show_bug.cgi?id=11596
http://bugzilla.kernel.org/show_bug.cgi?id=11393
http://bugzilla.kernel.org/show_bug.cgi?id=11983

I haven't checked if there are any elsewhere, but I suppose RHBZ will
have a few instances too...

I'd like to ask anyone who is CC'ed (those are people I know ran into
the bug) to try this patch.

I am convinced that this patch is correct in spirit, but I haven't
understood why, for example, there are so many unmap calls. I'm not
entirely convinced that this is the only bug leading to the TX reply
errors.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Before ieee80211_notify_mac() was added, it was presented with the
use case of using it to tell mac80211 that the association may
have been lost because the firmware crashed/reset.

Since then, it has also been used by iwlwifi to (slightly) speed
up re-association after resume, a workaround around the fact that
mac80211 has no suspend/resume handling yet. It is also not used
by any other drivers, so clearly it cannot be necessary for "good
enough" suspend/resume.

Unfortunately, the callback suffers from a severe problem: It only
works for station mode. If suspend/resume happens while in IBSS or
any other mode (but station), then the callback is pointless.

Recently, it has created a number of locking issues, first because
it required rtnl locking rather than RCU due to calling sleeping
functions within the critical section, and now because it's called
by iwlwifi from the mac80211 workqueue that may not use the rtnl
because it is flushed under rtnl.
(cf. http://bugzilla.kernel.org/show_bug.cgi?id=12046)

I think, therefore, that we should take a step back, remove it
entirely for now and add the small feature it provided properly.
For suspend and resume we will need to introduce new hooks, and for
the case where the firmware was reset the driver will probably
simply just pretend it has done a suspend/resume cycle to get
mac80211 to reprogram the hardware completely, not just try to
connect to the current AP again in station mode. When doing so, we
will need to take into account locking issues and possibly defer
to schedule_work from within mac80211 for the resume operation,
while the suspend operation must be done directly.

Proper suspend/resume should also not necessarily try to reconnect
to the current AP, the time spent in suspend may have been short
enough to not be disconnected from the AP, mac80211 will detect
that the AP went out of range quickly if it did, and if the
association is lost then the AP will disassoc as soon as a data
frame is sent. We might also take into account WWOL then, and
have mac80211 program the hardware into such a mode where it is
available and requested.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

skb->tail can't be meant here because it's not the same across 32/64 bit
compilations. This means there's no way the current driver can work on
64-bit architectures.
Signed-off-by: NJohannes Berg <johannes@sipsolutions.net>
Cc: stable@kernel.org [2.6.27]
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: hold extra reference to bio in blk_rq_map_user_iov()
  relay: fix cpu offline problem
  Release old elevator on change elevator
  block: fix boot failure with CONFIG_DEBUG_BLOCK_EXT_DEVT=y and nash
  block/md: fix md autodetection
  block: make add_partition() return pointer to hd_struct
  block: fix add_partition() error path

By using WARN(), kerneloops.org can collect which component is causing
the delay and make statistics about that. suspend_test_finish() is
currently the number 2 item but unless we can collect who's causing
it we're not going to be able to fix the hot topic ones..
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  kernel/profile.c: fix section mismatch warning
  function tracing: fix wrong pos computing when read buffer has been fulfilled
  tracing: fix mmiotrace resizing crash
  ring-buffer: no preempt for sched_clock()
  ring-buffer: buffer record on/off switch

Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/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:
  cpuset: fix regression when failed to generate sched domains
  sched, signals: fix the racy usage of ->signal in account_group_xxx/run_posix_cpu_timers
  sched: fix kernel warning on /proc/sched_debug access
  sched: correct sched-rt-group.txt pathname in init/Kconfig

Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  swiotlb: use coherent_dma_mask in alloc_coherent
  MAINTAINERS: remove me as RAID maintainer

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
  Blackfin arch: fix a broken define in dma-mapping
  Blackfin arch: fix bug - Turn on DEBUG_DOUBLEFAULT, booting SMP kernel crash
  Blackfin arch: fix bug - shared lib function in L2 failed be called
  Blackfin arch: fix incorrect limit check for bf54x check_gpio
  Blackfin arch: fix bug - Cpufreq assumes clocks in kHz and not Hz.
  Blackfin arch: dont warn when running a kernel on the oldest supported silicon
  Blackfin arch: fix bug - kernel build with write back policy fails to be booted up
  Blackfin arch: fix bug - dmacopy test case fail on all platform
  Blackfin arch: Fix typo when adding CONFIG_DEBUG_VERBOSE
  Blackfin arch: don't copy bss when copying L1
  Blackfin arch: fix bug - Fail to boot jffs2 kernel for BF561 with SMP patch
  Blackfin arch: handle case of d_path() returning error in decode_address()

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Fix resume of GPIO unsol event for STAC/IDT
  ALSA: hda - Add quirks for HP Pavilion DV models
  ALSA: hda - Fix GPIO initialization in patch_stac92hd71bxx()
  ALSA: hda - Check model type instead of SSID in patch_92hd71bxx()
  ALSA: sound/pci/pcxhr/pcxhr.c: introduce missing kfree and pci_disable_device
  ALSA: hda: STAC_VREF_EVENT value change
  ALSA: hda - Missing NULL check in hda_beep.c
  ALSA: hda - Add digital beep playback switch for STAC/IDT codecs

If the size passed in is OK but we end up mapping too many segments,
we call the unmap path directly like from IO completion. But from IO
completion we have an extra reference to the bio, so this error case
goes OOPS when it attempts to free and already free bio.

Fix it by getting an extra reference to the bio before calling the
unmap failure case.
Reported-by: NPetr Vandrovec <vandrove@vc.cvut.cz>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

relay_open() will close allocated buffers when failed.
but if cpu offlined, some buffer will not be closed.
this patch fixed it.

and did cleanup for relay_reset() too.
Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

We should release old elevator when change to use a new one.
Signed-off-by: NZhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

We run into system boot failure with kernel 2.6.28-rc. We found it on a
couple of machines, including T61 notebook, nehalem machine, and another
HPC NX6325 notebook.  All the machines use FedoraCore 8 or FedoraCore 9.
With kernel prior to 2.6.28-rc, system boot doesn't fail.

I debug it and locate the root cause. Pls. see
http://bugzilla.kernel.org/show_bug.cgi?id=11899
https://bugzilla.redhat.com/show_bug.cgi?id=471517

As a matter of fact, there are 2 bugs.

1)root=/dev/sda1, system boot randomly fails. Mostly, boot for 5 times
and fails once. nash has a bug. Some of its functions misuse return
value 0.  Sometimes, 0 means timeout and no uevent available. Sometimes,
0 means nash gets an uevent, but the uevent isn't block-related (for
exmaple, usb). If by coincidence, kernel tells nash that uevents are
available, but kernel also set timeout, nash might stops collecting
other uevents in queue if current uevent isn't block-related.  I work
out a patch for nash to fix it.
http://bugzilla.kernel.org/attachment.cgi?id=18858

2) root=LABEL=/, system always can't boot. initrd init reports
switchroot fails. Here is an executation branch of nash when booting:
    (1) nash read /sys/block/sda/dev; Assume major is 8 (on my desktop)
    (2) nash query /proc/devices with the major number; It found line
	"8 sd";
    (3) nash use 'sd' to search its own probe table to find device (DISK)
	type for the device and add it to its own list;
    (4) Later on, it probes all devices in its list to get filesystem
	labels; scsi register "8 sd" always.

When major is 259, nash fails to find the device(DISK) type. I enables
CONFIG_DEBUG_BLOCK_EXT_DEVT=y when compiling kernel, so 259 is picked up
for device /dev/sda1, which causes nash to fail to find device (DISK)
type.

To fixing issue 2), I create a patch for nash and another patch for
kernel.

http://bugzilla.kernel.org/attachment.cgi?id=18859
http://bugzilla.kernel.org/attachment.cgi?id=18837

Below is the patch for kernel 2.6.28-rc4. It registers blkext, a new
block device in proc/devices.

With 2 patches on nash and 1 patch on kernel, I boot my machines for
dozens of times without failure.

Signed-off-by Zhang Yanmin <yanmin.zhang@linux.intel.com>
Acked-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

Block ext devt conversion missed md_autodetect_dev() call in
rescan_partitions() leaving md autodetect unable to see partitions.
Fix it.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

Make add_partition() return pointer to the new hd_struct on success
and ERR_PTR() value on failure.  This change will be used to fix md
autodetection bug.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

Partition stats structure was not freed on devt allocation failure
path.  Fix it.
Signed-off-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>

Use cached write for setting the GPIO unsolicited event mask to be
restored properly at resume.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>