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14 years agosched: add head drop fifo queue
Hagen Paul Pfeifer [Sun, 24 Jan 2010 12:30:59 +0000 (12:30 +0000)]
sched: add head drop fifo queue

This adds an additional queuing strategy, called pfifo_head_drop,
to remove the oldest skb in the case of an overflow within the queue -
the head element - instead of the last skb (tail). To remove the oldest
skb in congested situations is useful for sensor network environments
where newer packets reflect the superior information.

Reviewed-by: Florian Westphal <fw@strlen.de>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonetns xfrm: ipcomp6 support
Alexey Dobriyan [Mon, 25 Jan 2010 10:39:09 +0000 (10:39 +0000)]
netns xfrm: ipcomp6 support

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonetns xfrm: ipcomp support
Alexey Dobriyan [Mon, 25 Jan 2010 10:38:34 +0000 (10:38 +0000)]
netns xfrm: ipcomp support

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonetns xfrm: xfrm6_tunnel in netns
Alexey Dobriyan [Mon, 25 Jan 2010 10:37:54 +0000 (10:37 +0000)]
netns xfrm: xfrm6_tunnel in netns

I'm not sure about rcu stuff near kmem cache destruction:
* checks for non-empty hashes look bogus, they're done _before_
  rcu_berrier()
* unregistering netns ops is done before kmem_cache destoy
  (as it should), and unregistering involves rcu barriers by itself

So it looks nothing should be done.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonetns xfrm: fixup xfrm6_tunnel error propagation
Alexey Dobriyan [Mon, 25 Jan 2010 10:28:21 +0000 (10:28 +0000)]
netns xfrm: fixup xfrm6_tunnel error propagation

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet: merge fixup for qlge_main
Stephen Rothwell [Thu, 28 Jan 2010 14:13:13 +0000 (06:13 -0800)]
net: merge fixup for qlge_main

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
David S. Miller [Thu, 28 Jan 2010 14:12:38 +0000 (06:12 -0800)]
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

14 years agonetdev: remove HAVE_ leftovers
Alexey Dobriyan [Wed, 27 Jan 2010 10:17:41 +0000 (10:17 +0000)]
netdev: remove HAVE_ leftovers

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agobonding: bond_open error return value
stephen hemminger [Mon, 25 Jan 2010 23:34:15 +0000 (23:34 +0000)]
bonding: bond_open error return value

The convention for API functions in kernel is to return errno value;
bond_open would return -1 if alb setup failed. The only reason that
could happen is if kmalloc() failed.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbe: if ixgbe_copy_dcb_cfg is going to fail learn about it early
John Fastabend [Wed, 27 Jan 2010 16:38:06 +0000 (16:38 +0000)]
ixgbe: if ixgbe_copy_dcb_cfg is going to fail learn about it early

Call ixgbe_copy_dcb_cfg() earlier in the ixgbe_dcbnl_set_all() so that
we can learn if this is going to fail as early as possible.  Previously,
ixgbe_down or ixgbe_close were being called before this check and the
IXGBE_RESETTING bit was being set and cleared.  Worse if this failed
the corresponding ixgbe_up/ndo_open would not called.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbe: set the correct DCB bit for pg tx settings
John Fastabend [Wed, 27 Jan 2010 16:37:44 +0000 (16:37 +0000)]
ixgbe: set the correct DCB bit for pg tx settings

Set the correct bit BIT_PG_TX when tx PG settings are set.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoigbvf: fix issue w/ mapped_as_page being left set after unmap
Alexander Duyck [Wed, 27 Jan 2010 15:30:39 +0000 (15:30 +0000)]
igbvf: fix issue w/ mapped_as_page being left set after unmap

This change fixes an issue in igbvf with mapped_as_page being left set
after a page is unmapped which results in buffers which are mapped via map
single being unmapped as page.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agodrivers/net: ks8851_mll ethernet network driver
Choi, David [Wed, 27 Jan 2010 06:03:16 +0000 (06:03 +0000)]
drivers/net: ks8851_mll ethernet network driver

Hello David Miller,

I fix a bug in ks8851_mll driver, which has existed since 2.6.32-rc6.

>From : David J. Choi <david.choi@micrel.com>

Fix a bug that the data pointers in the interrupt handler are set wrong, which is related with the 5th parameter of request_irq().

Signed-off-by : David J. Choi <david.choi@micrel.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agobe2net: Bug fix to support newer generation of BE ASIC
Ajit Khaparde [Wed, 27 Jan 2010 21:56:44 +0000 (21:56 +0000)]
be2net: Bug fix to support newer generation of BE ASIC

Bug fix in be2net for newer generation of BladeEngine ASIC.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Thu, 28 Jan 2010 13:42:33 +0000 (05:42 -0800)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6

14 years agonet/atm: Cleanup dprint/ddprintk #defines and uses
Joe Perches [Tue, 26 Jan 2010 11:40:20 +0000 (11:40 +0000)]
net/atm: Cleanup dprint/ddprintk #defines and uses

Move "mpoa:%s: ", __func__/__FILE__ to #defines
Remove mpoa __func__/__FILE__ from dprintk uses
Add and use #define dprint_cont where appropriate

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/lec.c: Add __lec_arp_check_expire and other cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:19 +0000 (11:40 +0000)]
net/atm/lec.c: Add __lec_arp_check_expire and other cleanups

Reduce indentation in lec_arp_check_expire
Indent a case label
Remove != NULL logical tests from while ((skb = foo())) assign and tests

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/svc.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:18 +0000 (11:40 +0000)]
net/atm/svc.c: checkpatch cleanups

Convert #include <asm... to #include <linux...
Spacing cleanups
Mostly 80 column wrapped
Move trailing statements to new lines
switch/case cleanups

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/signaling.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:17 +0000 (11:40 +0000)]
net/atm/signaling.c: checkpatch cleanups

Mostly 80 column wrapped.
Move embedded assigns out of tests
Move trailing statements to new lines
switch/case cleanups

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/resources.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:16 +0000 (11:40 +0000)]
net/atm/resources.c: checkpatch cleanups

Spacing cleanups
Mostly 80 column wrapped.
Move embedded assigns out of tests
Move trailing statements to new lines
switch/case cleanups

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/raw.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:15 +0000 (11:40 +0000)]
net/atm/raw.c: checkpatch cleanups

Spacing cleanups
Mostly 80 column wrapped.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/pvc.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:14 +0000 (11:40 +0000)]
net/atm/pvc.c: checkpatch cleanups

Spacing cleanups
Mostly 80 column wrapped.
Move trailing statements to new lines

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/proc.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:13 +0000 (11:40 +0000)]
net/atm/proc.c: checkpatch cleanups

Convert #include <asm... to #include <linux...
Mostly 80 column wrapped.
Spacing cleanups
Move trailing statements to new lines
switch/case cleanups

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/pppoatm.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:12 +0000 (11:40 +0000)]
net/atm/pppoatm.c: checkpatch cleanups

Move embedded assigns out of tests
Move trailing statements to new lines
Move labels to column 1

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/mpoa_proc.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:11 +0000 (11:40 +0000)]
net/atm/mpoa_proc.c: checkpatch cleanups

Convert #include <asm... to #include <linux...
Add printk argument verification to dprintk and ddprintk
Spacing cleanups
Mostly 80 column wrapped.
Removed unnecessary breaks after returns
Use %pI4 in seq_printf of IP address

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/mpoa_caches.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:10 +0000 (11:40 +0000)]
net/atm/mpoa_caches.c: checkpatch cleanups

Convert #include <asm... to #include <linux...
Add printk argument verification to dprintk and ddprintk
Spacing cleanups
Mostly 80 column wrapped.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/mpc.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:09 +0000 (11:40 +0000)]
net/atm/mpc.c: checkpatch cleanups

Convert #include <asm... to #include <linux...
Add printk argument verification to dprintk and ddprintk
Spacing cleanups
Mostly 80 column wrapped.
printk->pr_info and pr_cont
Moved labels to column 1
Move trailing statements to new lines
switch/case cleanups
remove unnecessary breaks after returns
Remove unnecessary braces around single line statements

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/lec.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:08 +0000 (11:40 +0000)]
net/atm/lec.c: checkpatch cleanups

Convert #include <asm... to #include <linux...
Mostly 80 column wrapped.
Spacing cleanups
Convert printks to pr_<level>
Use print_hex_dump
Move embedded assigns out of tests
Move trailing statements to new lines
Remove unnecessary braces around single line statements
switch/case cleanups
Removed paren around returns
Use %pM
Moved leading continuation logical tests to end of previous line

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/ioctl.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:07 +0000 (11:40 +0000)]
net/atm/ioctl.c: checkpatch cleanups

Spacing cleanups
Moved EXPORT_SYMBOL
Mostly 80 column wrapped.
switch/case cleanups

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/common.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:06 +0000 (11:40 +0000)]
net/atm/common.c: checkpatch cleanups

Convert #include <asm... to #include <linux...
Move EXPORT_SYMBOL
Spacing cleanups
Use __func__ in printks
Indent switch/case statements
Move trailing statements to new line
Hoist assigns from if tests

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/clip.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:05 +0000 (11:40 +0000)]
net/atm/clip.c: checkpatch cleanups

Convert #include <asm... to #include <linux...
Spacing cleanups
Move labels to column 1
Move logical continuation tests to end of previous line

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/br2684.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:04 +0000 (11:40 +0000)]
net/atm/br2684.c: checkpatch cleanups

Convert #include <asm... to #include <linux...
Use print_hex_dump
Spacing cleanups
Move logical continuation tests to end of previous line
80 column wrapping
Move goto branch label to column 1
Remove unnecessary single statement braces

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/atm_sysfs.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:03 +0000 (11:40 +0000)]
net/atm/atm_sysfs.c: checkpatch cleanups

Add space after for
Indent switch/case statements
80 column wrapping

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/atm_misc.c: checkpatch cleanups
Joe Perches [Tue, 26 Jan 2010 11:40:02 +0000 (11:40 +0000)]
net/atm/atm_misc.c: checkpatch cleanups

Moved EXPORT_SYMBOL to follow definition
Add space after commas

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm/addr.c: Convert include <asm to include <linux
Joe Perches [Tue, 26 Jan 2010 11:40:01 +0000 (11:40 +0000)]
net/atm/addr.c: Convert include <asm to include <linux

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet/atm: Convert printk to pr_<level>
Joe Perches [Tue, 26 Jan 2010 11:40:00 +0000 (11:40 +0000)]
net/atm: Convert printk to pr_<level>

Add #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
Remove function names from output
Use single line pr_debug instead of broken multiple uses without newline

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agostarfire: clean up properly if firmware loading fails
Ben Hutchings [Tue, 26 Jan 2010 18:27:09 +0000 (18:27 +0000)]
starfire: clean up properly if firmware loading fails

netdev_open() will return without cleaning up net device or hardware state
if firmware loading fails.  This results in a BUG() on a second attempt to
bring the interface up, reported in
<http://bugzilla.kernel.org/show_bug.cgi?id=15091>, and probably has even
worse effects if the driver is removed afterwards.

Call netdev_close() to clean up on failure.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=15091

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Reported-by: Michael Moffatt <michael@moffatt.org.nz>
Tested-by: Michael Moffatt <michael@moffatt.org.nz>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agomac80211: fix NULL pointer dereference when ftrace is enabled
Zhu Yi [Tue, 26 Jan 2010 07:58:57 +0000 (15:58 +0800)]
mac80211: fix NULL pointer dereference when ftrace is enabled

I got below kernel oops when I try to bring down the network interface if
ftrace is enabled. The root cause is drv_ampdu_action() is passed with a
NULL ssn pointer in the BA session tear down case. We need to check and
avoid dereferencing it in trace entry assignment.

BUG: unable to handle kernel NULL pointer dereference
Modules linked in: at (null)
IP: [<f98fe02a>] ftrace_raw_event_drv_ampdu_action+0x10a/0x160 [mac80211]
*pde = 00000000
Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[...]
Call Trace:
 [<f98fdf20>] ? ftrace_raw_event_drv_ampdu_action+0x0/0x160 [mac80211]
 [<f98dac4c>] ? __ieee80211_stop_rx_ba_session+0xfc/0x220 [mac80211]
 [<f98d97fb>] ? ieee80211_sta_tear_down_BA_sessions+0x3b/0x50 [mac80211]
 [<f98dc6f6>] ? ieee80211_set_disassoc+0xe6/0x230 [mac80211]
 [<f98dc6ac>] ? ieee80211_set_disassoc+0x9c/0x230 [mac80211]
 [<f98dcbb8>] ? ieee80211_mgd_deauth+0x158/0x170 [mac80211]
 [<f98e4bdb>] ? ieee80211_deauth+0x1b/0x20 [mac80211]
 [<f8987f49>] ? __cfg80211_mlme_deauth+0xe9/0x120 [cfg80211]
 [<f898b870>] ? __cfg80211_disconnect+0x170/0x1d0 [cfg80211]

Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: stable@kernel.org
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoariadne: Fix build.
David S. Miller [Tue, 26 Jan 2010 13:17:00 +0000 (05:17 -0800)]
ariadne: Fix build.

References removed HAVE_MULTICAST.

Reporeted-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoipv6: conntrack: Add member of user to nf_ct_frag6_queue structure
Shan Wei [Tue, 26 Jan 2010 02:40:38 +0000 (02:40 +0000)]
ipv6: conntrack: Add member of user to nf_ct_frag6_queue structure

The commit 0b5ccb2(title:ipv6: reassembly: use seperate reassembly queues for
conntrack and local delivery) has broken the saddr&&daddr member of
nf_ct_frag6_queue when creating new queue.  And then hash value
generated by nf_hashfn() was not equal with that generated by fq_find().
So, a new received fragment can't be inserted to right queue.

The patch fixes the bug with adding member of user to nf_ct_frag6_queue structure.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agovirtio_net: Make delayed refill more reliable
Herbert Xu [Mon, 25 Jan 2010 23:51:01 +0000 (15:51 -0800)]
virtio_net: Make delayed refill more reliable

I have seen RX stalls on a machine that experienced a suspected
OOM.  After the stall, the RX buffer is empty on the guest side
and there are exactly 16 entries available on the host side.  As
the number of entries is less than that required by a maximal
skb, the host cannot proceed.

The guest did not have a refill job scheduled.

My diagnosis is that an OOM had occured, with the delayed refill
job scheduled.  The job was able to allocate at least one skb, but
not enough to overcome the minimum required by the host to proceed.

As the refill job would only reschedule itself if it failed completely
to allocate any skbs, this would lead to an RX stall.

The following patch removes this stall possibility by always
rescheduling the refill job until the ring is totally refilled.

Testing has shown that the RX stall no longer occurs whereas
previously it would occur within a day.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agosfc: Use fixed-size buffers for MCDI NVRAM requests
Ben Hutchings [Mon, 25 Jan 2010 23:49:59 +0000 (15:49 -0800)]
sfc: Use fixed-size buffers for MCDI NVRAM requests

The low-level MCDI code always uses 32-bit MMIO operations, and
callers must pad input and output buffers to multiples of 4 bytes.
The MCDI NVRAM functions are not doing this.  Also, their buffers are
declared as variable-length arrays with no explicit maximum length.

Switch to a fixed buffer size based on the chunk size used by the
MTD driver (which is a multiple of 4).

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agosfc: Add workspace for GMAC bug workaround to MCDI MAC_STATS buffer
Guido Barzini [Mon, 25 Jan 2010 23:49:19 +0000 (15:49 -0800)]
sfc: Add workspace for GMAC bug workaround to MCDI MAC_STATS buffer

Due to a hardware bug in the SFC9000 family, the firmware must
transfer raw GMAC statistics to host memory before aggregating them
into the cooked (speed-independent) MAC statistics.  Extend the stats
buffer to support this.

The length of the buffer is explicit in the MAC_STATS command, so this
change is backward-compatible on both sides.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agotcp_probe: avoid modulus operation and wrap fix
Stephen Hemminger [Mon, 25 Jan 2010 23:47:50 +0000 (15:47 -0800)]
tcp_probe: avoid modulus operation and wrap fix

By rounding up the buffer size to power of 2, several expensive
modulus operations can be avoided.  This patch also solves a bug where
the gap need when ring gets full was not being accounted for.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoqlge: Only free resources if they were allocated
Breno Leitao [Mon, 25 Jan 2010 23:46:58 +0000 (15:46 -0800)]
qlge: Only free resources if they were allocated

Currently qlge tries to release regions even if they were not allocated.
This causes messages like the following in the kernel log

Trying to free nonexistent resource <00000000006af400-00000000006af4ff>
Trying to free nonexistent resource <00003c04ff9f4000-00003c04ff9f7fff>
Trying to free nonexistent resource <00003c04ffc00000-00003c04ffcfffff>

This patch fixes the goto logic in order to not release the resources
if they were not allocated.

Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet: use helpers to access uc list V2
Jiri Pirko [Mon, 25 Jan 2010 21:36:10 +0000 (13:36 -0800)]
net: use helpers to access uc list V2

This patch introduces three macros to work with uc list from net drivers.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoath9k: fix eeprom INI values override for 2GHz-only cards
Felix Fietkau [Sat, 23 Jan 2010 19:04:18 +0000 (20:04 +0100)]
ath9k: fix eeprom INI values override for 2GHz-only cards

Among other changes, this commit:

   commit 06d0f0663e11cab4ec5f2c143a118d71a12fbbe9
   Author: Sujith <Sujith.Manoharan@atheros.com>
   Date:   Thu Feb 12 10:06:45 2009 +0530

   ath9k: Enable Fractional N mode

changed the hw attach code to fix up initialization values only for
dual band devices, however the commit message did not give a reason as
to why this would be useful or necessary.

According to tests by Jorge Boncompte, this breaks at least some
2GHz-only cards, so the code should be changed back to the
unconditional INI fixup.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Reported-by: Jorge Boncompte <jorge@dti2.net>
Cc: stable@kernel.org
Tested-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agoiwlwifi: fix pointer signedness warning
Johannes Berg [Fri, 22 Jan 2010 22:22:34 +0000 (14:22 -0800)]
iwlwifi: fix pointer signedness warning

There are a few station addresses that are
char *, instead of the normal u8 *; gcc
gives pointer signedness warnings for some
of those, so use u8 * consistently.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
14 years agonetns xfrm: deal with dst entries in netns
Alexey Dobriyan [Mon, 25 Jan 2010 06:47:53 +0000 (22:47 -0800)]
netns xfrm: deal with dst entries in netns

GC is non-existent in netns, so after you hit GC threshold, no new
dst entries will be created until someone triggers cleanup in init_net.

Make xfrm4_dst_ops and xfrm6_dst_ops per-netns.
This is not done in a generic way, because it woule waste
(AF_MAX - 2) * sizeof(struct dst_ops) bytes per-netns.

Reorder GC threshold initialization so it'd be done before registering
XFRM policies.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agosky2: revert config space change
stephen hemminger [Sun, 24 Jan 2010 18:46:06 +0000 (18:46 +0000)]
sky2: revert config space change

Obviously, this register had some other impact that is causing
the regression.  Either it is masking some other access or needs
to be reset in some path.

Either, way it is best to just revert the change for 2.6.33

This reverts commit 166a0fd4c788ec7f10ca8194ec6d526afa12db75.

Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agovlan: fix vlan_skb_recv()
Eric Dumazet [Mon, 25 Jan 2010 03:52:24 +0000 (19:52 -0800)]
vlan: fix vlan_skb_recv()

Bruno Prémont found commit 9793241fe92f7d930
(vlan: Precise RX stats accounting) added a regression for non
hw accelerated vlans.

[   26.390576] BUG: unable to handle kernel NULL pointer dereference at (null)
[   26.396369] IP: [<df856b89>] vlan_skb_recv+0x89/0x280 [8021q]

vlan_dev_info() was used with original device, instead of
skb->dev. Also spotted by Américo Wang.

Reported-By: Bruno Prémont <bonbons@linux-vserver.org>
Tested-By: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonetns xfrm: fix "ip xfrm state|policy count" misreport
Alexey Dobriyan [Sat, 23 Jan 2010 13:37:10 +0000 (13:37 +0000)]
netns xfrm: fix "ip xfrm state|policy count" misreport

"ip xfrm state|policy count" report SA/SP count from init_net,
not from netns of caller process.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agosky2: Enable/disable WOL per hardware device
Mike McCormack [Sat, 23 Jan 2010 10:09:26 +0000 (02:09 -0800)]
sky2: Enable/disable WOL per hardware device

Y2_HW_WOL_ON/Y2_HW_WOL_OFF should be set and cleared per chip,
not per port.  On dual port cards, Y2_HW_WOL_ON should be
enabled if either sky2 port has WOL enabled.

Found while reviewing code for a WOL regression, though this is
probably not the cause of the regression.

Signed-off-by: Mike McCormack <mikem@ring3k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbevf: Fix IPv6 GSO type checks
Jeff Kirsher [Sat, 23 Jan 2010 10:06:26 +0000 (02:06 -0800)]
ixgbevf: Fix IPv6 GSO type checks

Based on patch from Sridhar Samudrala

The following patch fixes the check for IPv6 GSO packet in ixgbevf
driver to use skb_is_gso_v6(). SKB_GSO_DODGY is also set
when packets are forwarded from a guest.

CC: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet: Fix IPv6 GSO type checks in Intel ethernet drivers
Sridhar Samudrala [Sat, 23 Jan 2010 10:02:21 +0000 (02:02 -0800)]
net: Fix IPv6 GSO type checks in Intel ethernet drivers

Found this problem when testing IPv6 from a KVM guest to a remote
host via e1000e device on the host.
The following patch fixes the check for IPv6 GSO packet in Intel
ethernet drivers to use skb_is_gso_v6(). SKB_GSO_DODGY is also set
when packets are forwarded from a guest.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoIP: Send an ICMP "Fragment Reassembly Timeout" message when enabling connection track
Shan Wei [Sat, 23 Jan 2010 09:57:42 +0000 (01:57 -0800)]
IP: Send an ICMP "Fragment Reassembly Timeout" message when enabling connection track

No matter whether connection track is enabled, an end host should send
an ICMPv4 "Fragment Reassembly Timeout" message when defrag timeout.
The reasons are following two points:

1. RFC 792 says:
   >>>> >> > >   If a host reassembling a fragmented datagram cannot complete the
   >>>> >> > >   reassembly due to missing fragments within its time limit it
   >>>> >> > >   discards the datagram, and it may send a time exceeded message.
   >>>> >> > >
   >>>> >> > >   If fragment zero is not available then no time exceeded need be
   >>>> >> > >   sent at all.
   >>>> >> > >
   >>>> >> > > Read more: http://www.faqs.org/rfcs/rfc792.html#ixzz0aOXRD7Wp

2. Patrick McHardy also agrees with this opinion.   :-)
   About the discussion of this opinion, refer to http://patchwork.ozlabs.org/patch/41649

The patch fixed the problem like this:
When enabling connection track, fragments are received at PRE_ROUTING HOOK.
If they are failed to reassemble, ip_expire() will be called.
Before sending an ICMP "Fragment Reassembly Timeout" message,
the patch searches router table to get the destination entry only for host type.

The patch has been tested on both host type and route type.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoigb/igbvf: cleanup exception handling in tx_map_adv
Alexander Duyck [Sat, 23 Jan 2010 09:35:00 +0000 (01:35 -0800)]
igb/igbvf: cleanup exception handling in tx_map_adv

After removing the skb_dma_map/unmap calls the exception handling in
igb_tx_map_adv is not correct.  The issue is that the count value was not
being correctly handled so as a result we were not rewinding the ring as
back as we should have been.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoicmp: move icmp_err_convert[] to .rodata
Alexey Dobriyan [Fri, 22 Jan 2010 10:18:25 +0000 (10:18 +0000)]
icmp: move icmp_err_convert[] to .rodata

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonet: constify MIB name tables
Alexey Dobriyan [Fri, 22 Jan 2010 10:17:26 +0000 (10:17 +0000)]
net: constify MIB name tables

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoneigh: simplify seq_file code
Alexey Dobriyan [Fri, 22 Jan 2010 10:16:05 +0000 (10:16 +0000)]
neigh: simplify seq_file code

Simpily pass 'struct neigh_table' with seq_file private pointer,
and save one dereference. Proc entry itself isn't interesting.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agonetdev: remove certain HAVE_ macros
Alexey Dobriyan [Fri, 22 Jan 2010 10:13:10 +0000 (10:13 +0000)]
netdev: remove certain HAVE_ macros

After netdev_ops compat code HAVE_* macros aren't needed, in fact
they _will_ result in compile breakage for out of tree drivers.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoMAINTAINERS: Add Intel igbvf maintainer
Jeff Kirsher [Sat, 23 Jan 2010 09:20:22 +0000 (01:20 -0800)]
MAINTAINERS: Add Intel igbvf maintainer

Add igbvf to the list of supported Intel drivers and Alex to the list of
maintainers.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbevf: Tell network stack to stop tx when the VF detects PF reset
Greg Rose [Fri, 22 Jan 2010 22:47:37 +0000 (22:47 +0000)]
ixgbevf: Tell network stack to stop tx when the VF detects PF reset

When the VF detects that the PF has reset turn off carrier and stop all
tx queues.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbevf: Fix panics in the VF driver
Greg Rose [Fri, 22 Jan 2010 22:47:18 +0000 (22:47 +0000)]
ixgbevf: Fix panics in the VF driver

Fix panics in the VF driver that occur when you bring it down after
having already brought the PF down.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbevf: Take action when the PF notifies the VF it is resetting.
Greg Rose [Fri, 22 Jan 2010 22:47:00 +0000 (22:47 +0000)]
ixgbevf: Take action when the PF notifies the VF it is resetting.

When the VF driver gets a control message from the PF that indicates the
PF is about to reset or go down we schedule the watchdog timer so that
it will detect the PF has gone offline and take appropriate action.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbe: Improve reset coordination between the PF and the VF
Greg Rose [Fri, 22 Jan 2010 22:46:40 +0000 (22:46 +0000)]
ixgbe: Improve reset coordination between the PF and the VF

Inadequate coordination between the PF driver and the VF driver results
in tx hangs in the VF driver when you perform certain actions that will
lead to a re-init of the PF.  Add feature to notify active VFs when the PF
is about to re-initialize so that the VFs can take appropriate action.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbe: Allow the VF driver to be loaded before the PF driver
Greg Rose [Fri, 22 Jan 2010 22:46:22 +0000 (22:46 +0000)]
ixgbe: Allow the VF driver to be loaded before the PF driver

The PF Reset Done bit should not be set in the extended control register
until the PF has actually completed the bring up process.  It is a mis-
interpretation of the purpose of this bit to assume it should be set
when the physical reset of the device is done.  Instead it should be used
to indicate to the VFs when the PF is ready to provide them with required
services.  This is not until after the PF is finished coming up and ready
to process mailbox events.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbe: Remove unused emulation MAC storage from the per VF data structure.
Greg Rose [Fri, 22 Jan 2010 22:46:02 +0000 (22:46 +0000)]
ixgbe: Remove unused emulation MAC storage from the per VF data structure.

This data storage for SW emulated MAC addresses is unlikely to ever be used
so pull it.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoixgbe: Set the correct pool when VLANs are added in SR-IOV mode.
Greg Rose [Fri, 22 Jan 2010 22:45:43 +0000 (22:45 +0000)]
ixgbe: Set the correct pool when VLANs are added in SR-IOV mode.

When VFs are allocated (as indicated by adapter->num_vfs is non-zero) then
the PF pool is no longer zero.  Instead it will be the same as the number
of VFs allocated.  When setting the VLVF entry for the PF we need to use
the correct pool otherwise the PF will get VLAN packets from the wire
because the packet will pass VFTA filtering and the PF has the default
pool, but it will not get VLAN packets from the VFs because it has
not set the correct pool bit in the VLVF entry.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoe1000/e1000e: don't use small hardware rx buffers
Jesse Brandeburg [Fri, 22 Jan 2010 22:56:16 +0000 (22:56 +0000)]
e1000/e1000e: don't use small hardware rx buffers

When testing the "e1000: enhance frame fragment detection" (and e1000e)
patches we found some bugs with reducing the MTU size.  The 1024 byte
descriptor used with the 1000 mtu test also (re) introduced the
(originally) reported bug, and causes us to need the e1000_clean_tx_irq
"enhance frame fragment detection" fix.

So what has occured here is that 2.6.32 is only vulnerable for mtu <
1500 due to the jumbo specific routines in both e1000 and e1000e.
So, 2.6.32 needs the 2kB buffer len fix for those smaller MTUs, but
is not vulnerable to the original issue reported.  It has been pointed
out that this vulnerability needs to be patched in older kernels that
don't have the e1000 jumbo routine.  Without the jumbo routines, we
need the "enhance frame fragment detection" fix the e1000, old
e1000e is only vulnerable for < 1500 mtu, and needs a similar
fix.  We split the patches up to provide easy backport paths.

There is only a slight bit of extra code when this fix and the
original "enhance frame fragment detection" fixes are applied, so
please apply both, even though it is a bit of overkill.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agofmvj18x_cs: add new id (Panasonic lan & modem card)
Ken Kawasaki [Fri, 22 Jan 2010 11:56:25 +0000 (11:56 +0000)]
fmvj18x_cs: add new id (Panasonic lan & modem card)

fmvj18x_cs, serial_cs:
 add new id
 Panasonic lan & modem card (model name:AL-VML101)

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agobe2net: swap only first 2 fields of mcc_wrb
Sathya Perla [Thu, 21 Jan 2010 22:51:36 +0000 (22:51 +0000)]
be2net: swap only first 2 fields of mcc_wrb

Only the first two fields of mcc wrb - embedded, payload_len
need to be cpu_to_le32() swapped while issuing a cmd to the hw.
The fields tag0, tag1 are opaque and returned back to cpu as is...

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoPlease add support for Microsoft MN-120 PCMCIA network card
Ron Murray [Tue, 19 Jan 2010 08:02:48 +0000 (08:02 +0000)]
Please add support for Microsoft MN-120 PCMCIA network card

Please add support for Microsoft MN-120 PCMCIA network card. It's an
old card, I know, but adding support is very easy. You just need to
get tulip_core.c to recognise its vendor/device ID.

Patch for kernel 2.6.32.4 (and many previous) attached.

 .....Ron Murray

Signed-off-by: Ron Murray <rjmx@rjmx.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoMerge branch 'linux-2.6.33.y' of git://git.kernel.org/pub/scm/linux/kernel/git/inaky...
David S. Miller [Sat, 23 Jan 2010 09:08:39 +0000 (01:08 -0800)]
Merge branch 'linux-2.6.33.y' of git://git.kernel.org/pub/scm/linux/kernel/git/inaky/wimax

14 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
David S. Miller [Sat, 23 Jan 2010 08:31:06 +0000 (00:31 -0800)]
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

14 years agoMerge branch 'master' of /home/davem/src/GIT/linux-2.6/
David S. Miller [Sat, 23 Jan 2010 06:45:46 +0000 (22:45 -0800)]
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

14 years agobe2net: fix bug in rx page posting
Sathya Perla [Fri, 22 Jan 2010 06:52:08 +0000 (22:52 -0800)]
be2net: fix bug in rx page posting

Pages are posted to the rxq in such a way that more than one frag
can share the page. The last frag that uses the page unmaps the
page.  In the case when a page is not fully used (due to lack of space in rxq)
the last frag that uses the page is not being set as a "last_page_user";
instead, the next frag in the rxq is incorrectly being set.

The fix has also been tested on ppc64 with 64k pages...

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agobe2net: Add link test to list of ethtool self tests.
Sarveshwar Bandi [Tue, 19 Jan 2010 05:15:36 +0000 (05:15 +0000)]
be2net: Add link test to list of ethtool self tests.

Signed-off-by: Sarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agobe2net: ethtool self test reorganization.
Sarveshwar Bandi [Tue, 19 Jan 2010 05:15:00 +0000 (05:15 +0000)]
be2net: ethtool self test reorganization.

The ddr dma ethtool self test needs to be performed even when ETH_TEST_FL_OFFLINE is not set.

Signed-off-by: Sarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agowimax/i2400m: Add support for more i6x50 SKUs
Inaky Perez-Gonzalez [Wed, 20 Jan 2010 20:41:13 +0000 (12:41 -0800)]
wimax/i2400m: Add support for more i6x50 SKUs

The Intel WiMax Wireless Link 6050 can show under more than one USB
ID. Add support for all, introducing a generic flag (i2400mu->i6050)
that denotes a 6x50 based device.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
14 years agoLinux 2.6.33-rc5
Linus Torvalds [Thu, 21 Jan 2010 23:31:35 +0000 (15:31 -0800)]
Linux 2.6.33-rc5

14 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 21 Jan 2010 16:50:04 +0000 (08:50 -0800)]
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: x86: Add support for the ANY bit
  perf: Change the is_software_event() definition
  perf: Honour event state for aux stream data
  perf: Fix perf_event_do_pending() fallback callsite
  perf kmem: Print usage help for unknown commands
  perf kmem: Increase "Hit" column length
  hw-breakpoints, perf: Fix broken mmiotrace due to dr6 by reference change
  perf timechart: Use tid not pid for COMM change

14 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 21 Jan 2010 16:49:52 +0000 (08:49 -0800)]
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:
  sched: Reassign prev and switch_count when reacquire_kernel_lock() fail
  sched: Fix vmark regression on big machines

14 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Thu, 21 Jan 2010 15:42:59 +0000 (07:42 -0800)]
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: retry FS IOs even if it has failed with AC_ERR_INVALID

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
Linus Torvalds [Thu, 21 Jan 2010 15:37:20 +0000 (07:37 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  tty: fix race in tty_fasync
  serial: serial_cs: oxsemi quirk breaks resume
  serial: imx: bit &/| confusion
  serial: Fix crash if the minimum rate of the device is > 9600 baud
  serial-core: resume serial hardware with no_console_suspend
  serial: 8250_pnp: use wildcard for serial Wacom tablets
  nozomi: quick fix for the close/close bug
  compat_ioctl: Supress "unknown cmd" message on serial /dev/console

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
Linus Torvalds [Thu, 21 Jan 2010 15:36:55 +0000 (07:36 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
  Staging: hv: fix smp problems in the hyperv core code
  Staging: et131x: Fix 2.6.33rc1 regression in et131x
  Staging: asus_oled: fix oops in 2.6.32.2

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
Linus Torvalds [Thu, 21 Jan 2010 15:36:31 +0000 (07:36 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  Revert "sysdev: fix prototype for memory_sysdev_class show/store functions"
  driver-core: fix devtmpfs crash on s390

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Thu, 21 Jan 2010 15:35:43 +0000 (07:35 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: isp1362: fix build failure on ARM systems via irq_flags cleanup
  USB: isp1362: better 64bit printf warning fixes
  USB: fix usbstorage for 2770:915d delivers no FAT
  USB: Fix level of isp1760 Reloading ptd error message
  USB: FHCI: avoid NULL pointer dereference
  USB: Fix duplicate sysfs problem after device reset.
  USB: add speed values for USB 3.0 and wireless controllers
  USB: add missing delay during remote wakeup
  USB: EHCI & UHCI: fix race between root-hub suspend and port resume
  USB: EHCI: fix handling of unusual interrupt intervals
  USB: Don't use GFP_KERNEL while we cannot reset a storage device
  USB: fix bitmask merge error
  usb: serial: fix memory leak in generic driver
  USB: serial: fix USB serial fix kfifo_len locking

14 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Thu, 21 Jan 2010 15:32:11 +0000 (07:32 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  fs/bio.c: fix shadows sparse warning
  drbd: The kernel code is now equivalent to out of tree release 8.3.7
  drbd: Allow online resizing of DRBD devices while peer not reachable (needs to be explicitly forced)
  drbd: Don't go into StandAlone mode when authentification failes because of network error
  drivers/block/drbd/drbd_receiver.c: correct NULL test
  cfq-iosched: Respect ioprio_class when preempting
  genhd: overlapping variable definition
  block: removed unused as_io_context
  DM: Fix device mapper topology stacking
  block: bdev_stack_limits wrapper
  block: Fix discard alignment calculation and printing
  block: Correct handling of bottom device misaligment
  drbd: check on CONFIG_LBDAF, not LBD
  drivers/block/drbd: Correct NULL test
  drbd: Silenced an assert that could triggered after changing write ordering method
  drbd: Kconfig fix
  drbd: Fix for a race between IO and a detach operation [Bugz 262]
  drbd: Use drbd_crypto_is_hash() instead of an open coded check

14 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Thu, 21 Jan 2010 15:29:36 +0000 (07:29 -0800)]
Merge branch 'release' of git://git.kernel.org/pub/scm/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)
  ACPI: delete acpi_processor_power_verify_c2()
  ACPI: allow C3 > 1000usec
  ACPI: enable C2 and Turbo-mode on Nehalem notebooks on A/C
  ACPI: power_meter: remove double kfree()
  ACPI: processor: restrict early _PDC to opt-in platforms
  ACPI: Fix unused variable warning in sbs.c
  acpi: make ACPI device id constant
  sony-laptop - fix using of uninitialized variable
  ACPI: Fix section mismatch error for acpi_early_processor_set_pdc()
  eeepc-laptop: disable wireless hotplug for 1201N
  eeepc-laptop: add hotplug_disable parameter
  eeepc-laptop: switch to using sparse keymap library
  eeepc-laptop: dmi blacklist to disable pci hotplug code
  eeepc-laptop: disable cpu speed control on EeePC 701
  ACPI: don't cond_resched if irq is disabled
  ACPI: Remove unnecessary cast.
  ACPI: Advertise to BIOS in _OSC: _OST on _PPC changes
  ACPI: EC: Add wait for irq storm
  ACPI: SBS: Move SBS HC callback to faster Notify queue
  x86, ACPI: delete acpi_boot_table_init() return value
  ...

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs...
Linus Torvalds [Thu, 21 Jan 2010 15:28:54 +0000 (07:28 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
  ecryptfs: use after free
  ecryptfs: Eliminate useless code
  ecryptfs: fix interpose/interpolate typos in comments
  ecryptfs: pass matching flags to interpose as defined and used there
  ecryptfs: remove unnecessary d_drop calls in ecryptfs_link
  ecryptfs: don't ignore return value from lock_rename
  ecryptfs: initialize private persistent file before dereferencing pointer
  eCryptfs: Remove mmap from directory operations
  eCryptfs: Add getattr function
  eCryptfs: Use notify_change for truncating lower inodes

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
Linus Torvalds [Thu, 21 Jan 2010 15:28:05 +0000 (07:28 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: fix possible panic on unmount
  Btrfs: deal with NULL acl sent to btrfs_set_acl
  Btrfs: fix regression in orphan cleanup
  Btrfs: Fix race in btrfs_mark_extent_written
  Btrfs, fix memory leaks in error paths
  Btrfs: align offsets for btrfs_ordered_update_i_size
  btrfs: fix missing last-entry in readdir(3)

14 years agovmalloc: remove BUG_ON due to racy counting of VM_LAZY_FREE
Yongseok Koh [Tue, 19 Jan 2010 08:33:49 +0000 (17:33 +0900)]
vmalloc: remove BUG_ON due to racy counting of VM_LAZY_FREE

In free_unmap_area_noflush(), va->flags is marked as VM_LAZY_FREE first, and
then vmap_lazy_nr is increased atomically.

But, in __purge_vmap_area_lazy(), while traversing of vmap_are_list, nr
is counted by checking VM_LAZY_FREE is set to va->flags.  After counting
the variable nr, kernel reads vmap_lazy_nr atomically and checks a
BUG_ON condition whether nr is greater than vmap_lazy_nr to prevent
vmap_lazy_nr from being negative.

The problem is that, if interrupted right after marking VM_LAZY_FREE,
increment of vmap_lazy_nr can be delayed.  Consequently, BUG_ON
condition can be met because nr is counted more than vmap_lazy_nr.

It is highly probable when vmalloc/vfree are called frequently.  This
scenario have been verified by adding delay between marking VM_LAZY_FREE
and increasing vmap_lazy_nr in free_unmap_area_noflush().

Even the vmap_lazy_nr is for checking high watermark, it never be the
strict watermark.  Although the BUG_ON condition is to prevent
vmap_lazy_nr from being negative, vmap_lazy_nr is signed variable.  So,
it could go down to negative value temporarily.

Consequently, removing the BUG_ON condition is proper.

A possible BUG_ON message is like the below.

   kernel BUG at mm/vmalloc.c:517!
   invalid opcode: 0000 [#1] SMP
   EIP: 0060:[<c04824a4>] EFLAGS: 00010297 CPU: 3
   EIP is at __purge_vmap_area_lazy+0x144/0x150
   EAX: ee8a8818 EBX: c08e77d4 ECX: e7c7ae40 EDX: c08e77ec
   ESI: 000081fe EDI: e7c7ae60 EBP: e7c7ae64 ESP: e7c7ae3c
   DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
   Call Trace:
   [<c0482ad9>] free_unmap_vmap_area_noflush+0x69/0x70
   [<c0482b02>] remove_vm_area+0x22/0x70
   [<c0482c15>] __vunmap+0x45/0xe0
   [<c04831ec>] vmalloc+0x2c/0x30
   Code: 8d 59 e0 eb 04 66 90 89 cb 89 d0 e8 87 fe ff ff 8b 43 20 89 da 8d 48 e0 8d 43 20 3b 04 24 75 e7 fe 05 a8 a5 a3 c0 e9 78 ff ff ff <0f> 0b eb fe 90 8d b4 26 00 00 00 00 56 89 c6 b8 ac a5 a3 c0 31
   EIP: [<c04824a4>] __purge_vmap_area_lazy+0x144/0x150 SS:ESP 0068:e7c7ae3c

[ See also http://marc.info/?l=linux-kernel&m=126335856228090&w=2 ]

Signed-off-by: Yongseok Koh <yongseok.koh@samsung.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
Linus Torvalds [Thu, 21 Jan 2010 15:16:27 +0000 (07:16 -0800)]
Merge branch 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh64: wire up sys_accept4.
  sh: unwire sys_recvmmsg.
  sh: ms7724: Correct sh-eth EEPROM polling timeout.

14 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Thu, 21 Jan 2010 15:15:10 +0000 (07:15 -0800)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 5888/1: arm: Update comments in cacheflush.h and remove unnecessary V6 and V7 comments
  ARM: 5886/1: arm: Fix cpu_proc_fin() for proc-v7.S and make kexec work
  ARM: 5885/1: arm: Flush TLB entries in setup_mm_for_reboot()
  ARM: 5884/1: arm: Fix DCC console for v7
  ARM: 5883/1: Revert "disable NX support for OABI-supporting kernels"
  ARM: 5882/1: ARM: Fix uncompress code compile for different defines of flush(void)
  ARM: fix badly placed mach/plat entries in Kconfig & Makefile

14 years agoperf: x86: Add support for the ANY bit
Stephane Eranian [Mon, 18 Jan 2010 08:58:01 +0000 (10:58 +0200)]
perf: x86: Add support for the ANY bit

Propagate the ANY bit into the fixed counter config for v3 and higher.

Signed-off-by: Stephane Eranian <eranian@google.com>
[a.p.zijlstra@chello.nl: split from larger patch]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4b5430c6.0f975e0a.1bf9.ffff85fe@mx.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
14 years agoperf: Change the is_software_event() definition
Peter Zijlstra [Mon, 18 Jan 2010 13:02:16 +0000 (14:02 +0100)]
perf: Change the is_software_event() definition

The is_software_event() definition always confuses me because its an
exclusive expression, make it an inclusive one.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
14 years agoperf: Honour event state for aux stream data
Peter Zijlstra [Mon, 18 Jan 2010 08:12:32 +0000 (09:12 +0100)]
perf: Honour event state for aux stream data

Anton reported that perf record kept receiving events even after calling
ioctl(PERF_EVENT_IOC_DISABLE). It turns out that FORK,COMM and MMAP
events didn't respect the disabled state and kept flowing in.

Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Tested-by: Anton Blanchard <anton@samba.org>
LKML-Reference: <1263459187.4244.265.camel@laptop>
CC: stable@kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
14 years agoperf: Fix perf_event_do_pending() fallback callsite
Peter Zijlstra [Mon, 18 Jan 2010 08:08:26 +0000 (09:08 +0100)]
perf: Fix perf_event_do_pending() fallback callsite

Paul questioned the context in which we should call
perf_event_do_pending(). After looking at that I found that it should be
called from IRQ context these days, however the fallback call-site is
placed in softirq context. Ammend this by placing the callback in the IRQ
timer path.

Reported-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1263374859.4244.192.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
14 years agosched: Reassign prev and switch_count when reacquire_kernel_lock() fail
Yong Zhang [Mon, 11 Jan 2010 06:21:25 +0000 (14:21 +0800)]
sched: Reassign prev and switch_count when reacquire_kernel_lock() fail

Assume A->B schedule is processing, if B have acquired BKL before and it
need reschedule this time. Then on B's context, it will go to
need_resched_nonpreemptible for reschedule. But at this time, prev and
switch_count are related to A. It's wrong and will lead to incorrect
scheduler statistics.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <2674af741001102238w7b0ddcadref00d345e2181d11@mail.gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>