pandora-kernel.git
15 years agoV4L/DVB (7958): fix unaligned access in av7110.c
Al Viro [Wed, 21 May 2008 03:30:51 +0000 (00:30 -0300)]
V4L/DVB (7958): fix unaligned access in av7110.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7957): fix the roothole in av7110_av.c
Al Viro [Wed, 21 May 2008 03:30:41 +0000 (00:30 -0300)]
V4L/DVB (7957): fix the roothole in av7110_av.c

direct dereferencing from user-supplied address

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7956): cinergyT2: endianness annotations, endianness and race fixes
Al Viro [Wed, 21 May 2008 03:30:31 +0000 (00:30 -0300)]
V4L/DVB (7956): cinergyT2: endianness annotations, endianness and race fixes

Endianness annotations and fixes + fixing the handling of
->uncorrected_block_count

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7166): [v4l] Add new user class controls and deprecate others
David Woodhouse [Mon, 2 Jun 2008 18:46:51 +0000 (15:46 -0300)]
V4L/DVB (7166): [v4l] Add new user class controls and deprecate others

These were removed in commit 26d507fcfef7f7d0cd2eec874a87169cc121c835:

> -#define V4L2_CID_HCENTER               (V4L2_CID_BASE+22)
> -#define V4L2_CID_VCENTER               (V4L2_CID_BASE+23)
> -#define V4L2_CID_LASTP1                        (V4L2_CID_BASE+24) /*
> last CID + 1 */
> +
> +/* Deprecated, use V4L2_CID_PAN_RESET and V4L2_CID_TILT_RESET */
> +#define V4L2_CID_HCENTER_DEPRECATED    (V4L2_CID_BASE+22)
> +#define V4L2_CID_VCENTER_DEPRECATED    (V4L2_CID_BASE+23)

But there was no warning in Documentation/feature-removal-schedule.txt
and I'm receiving reports that it's breaking userspace apps (the
gstreamer-v4l2 plugin breaks in Fedora rawhide). You can't just pull
things from the published userspace API like that.

Please can we revert the addition of _DEPRECATED to these ioctl
definitions. Perhaps we can add a runtime warning if they actually get
used? Or a compile-time warning if we can manage that?

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7944): tuner-xc2028: use hybrid_tuner_request_state
Michael Krufky [Sat, 19 Apr 2008 00:22:50 +0000 (21:22 -0300)]
V4L/DVB (7944): tuner-xc2028: use hybrid_tuner_request_state

Use a standard method to manage multiple instances of a hybrid tuner.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7943): tuner: add macro, hybrid_tuner_report_instance_count
Michael Krufky [Fri, 18 Apr 2008 23:26:04 +0000 (20:26 -0300)]
V4L/DVB (7943): tuner: add macro, hybrid_tuner_report_instance_count

Create a macro to report the number of instances of the tuner driver
currently in use.  This will allow drivers to perform specific cleanups
before destroying the last instance of a tuner.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7934): cx18: move gpio_dir/val statics to the cx18 struct.
Hans Verkuil [Sun, 25 May 2008 17:34:36 +0000 (14:34 -0300)]
V4L/DVB (7934): cx18: move gpio_dir/val statics to the cx18 struct.

The gpio_dir/val statics cannot be global, they are card-specific.

Thanks to Andy Walls for pointing this out.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7932): cx18: mark Compro H900 as fully supported.
Hans Verkuil [Sun, 25 May 2008 14:45:53 +0000 (11:45 -0300)]
V4L/DVB (7932): cx18: mark Compro H900 as fully supported.

I always assumed that the Compro H900 could do digital as well,
but it turned out that it is an analog-only card.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7931): cx18: allow for simultaneous digital and analog capture
Hans Verkuil [Sun, 25 May 2008 14:21:27 +0000 (11:21 -0300)]
V4L/DVB (7931): cx18: allow for simultaneous digital and analog capture

The HVR-1600 can do both analog and digital capture at the same time.
Due to a driver bug -EBUSY would be returned when attempting to setup an
analog capture while a digital capture was already in progress.

Separate the two internally.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7930): ivtv: bump version to 1.3.0.
Hans Verkuil [Sat, 24 May 2008 15:43:43 +0000 (12:43 -0300)]
V4L/DVB (7930): ivtv: bump version to 1.3.0.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7928): cx18: fix audio registers 808 and 80c
Hans Verkuil [Wed, 21 May 2008 20:40:19 +0000 (17:40 -0300)]
V4L/DVB (7928): cx18: fix audio registers 808 and 80c

The handling of the audio registers 808 and 80c were based on old datasheets.
Updated to the latest information.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7925): cx18: ensure that the xceive pin is always asserted on init.
Hans Verkuil [Tue, 20 May 2008 01:13:02 +0000 (22:13 -0300)]
V4L/DVB (7925): cx18: ensure that the xceive pin is always asserted on init.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7922): tuner-simple: fix tuner_warn() induced kernel oops in simple_tuner_at...
Andy Walls [Mon, 26 May 2008 04:31:17 +0000 (01:31 -0300)]
V4L/DVB (7922): tuner-simple: fix tuner_warn() induced kernel oops in simple_tuner_attach()

The tuner_warn() macro relies on the local variable "priv" to be a valid
pointer.  There was a case in simple_tuner_attach() where this cannot be the
case yet, so tuner_warn() would dereference a NULL "priv" pointer.  Changed
the tuner_warn() to a printk() with the originally intended output format.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7919): VIDEO_AU0828 does not depend on VIDEO_DEV
Michael Krufky [Sun, 25 May 2008 02:49:03 +0000 (23:49 -0300)]
V4L/DVB (7919): VIDEO_AU0828 does not depend on VIDEO_DEV

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7918): au0828: remove irrelevent analog tuner standby code
Michael Krufky [Sun, 25 May 2008 02:48:16 +0000 (23:48 -0300)]
V4L/DVB (7918): au0828: remove irrelevent analog tuner standby code

This code is irrelevant to this driver and should be removed.  This was
copied from a hack in cx88-dvb.c, which prevents noise coming from the
analog tuner (via an audio patch cable from the pci card to the sound
hardware) when in digital mode by muting the tda988x.  This issue does
not apply to this USB hybrid chip design, where a single piece of
silicon handles both analog and digital demodulation.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7916): dib7000p: fix dib7000p_attach when !CONFIG_DVB_DIB7000P
Michael Krufky [Sun, 25 May 2008 16:09:51 +0000 (13:09 -0300)]
V4L/DVB (7916): dib7000p: fix dib7000p_attach when !CONFIG_DVB_DIB7000P

somebody forgot to to fix this header...

Thanks to Ingo Molnar for pointing this out.

Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7911): Remove v4l2_video_std_fps prototype declaration
Guennadi Liakhovetski [Thu, 22 May 2008 22:30:40 +0000 (19:30 -0300)]
V4L/DVB (7911): Remove v4l2_video_std_fps prototype declaration

The v4l2_video_std_fps function has been removed by Adrian Bunk in 2004
but then its prototype re-appeared in include/media/v4l2-dev.h. Remove it.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7910): usb: input layer dependency fixes
Ingo Molnar [Tue, 20 May 2008 11:02:33 +0000 (08:02 -0300)]
V4L/DVB (7910): usb: input layer dependency fixes

testing of the -tip tree found the following build failures on
2.6.26-rc3:

  drivers/built-in.o: In function `ttusb_dec_disconnect':
  ttusb_dec.c:(.text+0xa2c95): undefined reference to `input_unregister_device'

  drivers/built-in.o: In function `dvb_usb_read_remote_control':
  dvb-usb-remote.c:(.text+0xa6a94): undefined reference to `input_event'

with this config:

  http://redhat.com/~mingo/misc/config-Tue_May_20_03_48_57_CEST_2008.bad

these are due to the media/dvb/usb layer having dependencies on INPUT
functionality, without having that spelled out in the Kconfig file.

this patch makes that dependency explicit (for the drivers affected),
which solves the build error.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7908): always enter drivers/media/video/
Adrian Bunk [Mon, 26 May 2008 17:23:49 +0000 (14:23 -0300)]
V4L/DVB (7908): always enter drivers/media/video/

After commit 039d40019f3c5e26ea50ec5af4270189f63365e1
(V4L/DVB (7898): Fix VIDEO_MEDIA Kconfig logic)
VIDEO_MEDIA is no longer usable in Makefile's for deciding
which directories we enter, resulting in compile errors like the
following with CONFIG_VIDEO_DEV=y, CONFIG_DVB_CORE=m:

<--  snip  -->

...
  MODPOST 187 modules
...
make[2]: *** [__modpost] Error 1

<--  snip  -->

The easiest solution is to always enter video/

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7906): tuners/mxl5005s.c: don't define variables for enums
Adrian Bunk [Fri, 16 May 2008 03:15:53 +0000 (00:15 -0300)]
V4L/DVB (7906): tuners/mxl5005s.c: don't define variables for enums

It doesn't seem to be intended that "tuner_modu_type" and
"MXL5005_ControlName" were global variables.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7905): check_v4l2 should return -EINVAL on error
Marcin Slusarz [Sun, 11 May 2008 22:58:59 +0000 (19:58 -0300)]
V4L/DVB (7905): check_v4l2 should return -EINVAL on error

check_v4l2 always returns 0, so this change is an noop for now,
but a comment says it will return something else in the future

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7904): v4l/tuner-core: consistent handling of return values
Marcin Slusarz [Mon, 26 May 2008 17:03:02 +0000 (14:03 -0300)]
V4L/DVB (7904): v4l/tuner-core: consistent handling of return values

change check_mode and set_mode to return negative errors and fix all callers

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7903): gp8psk_power_ctrl should return negative errors
Marcin Slusarz [Sun, 11 May 2008 22:53:39 +0000 (19:53 -0300)]
V4L/DVB (7903): gp8psk_power_ctrl should return negative errors

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7902): fix handling of tea5761_autodetection return value
Marcin Slusarz [Sun, 11 May 2008 22:51:07 +0000 (19:51 -0300)]
V4L/DVB (7902): fix handling of tea5761_autodetection return value

tea5761_autodetection returns -EINVAL on error

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7901): zoran: use correct type for CPU flags
Andrew Morton [Thu, 15 May 2008 02:14:04 +0000 (23:14 -0300)]
V4L/DVB (7901): zoran: use correct type for CPU flags

locking-add-typecheck-on-irqsave-and-friends-for-correct-flags.patch will cause

drivers/media/video/zoran_driver.c: In function 'zoran_close_end_session':
drivers/media/video/zoran_driver.c:1172: warning: comparison of distinct pointer types lacks a cast

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years agoV4L/DVB (7885): ivtv/cx18: add compat_ioctl entries
Hans Verkuil [Mon, 12 May 2008 14:21:58 +0000 (11:21 -0300)]
V4L/DVB (7885): ivtv/cx18: add compat_ioctl entries

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
15 years ago[MTD] [MAPS] Fix cmdlineparse handling in mapping files
Kyungmin Park [Wed, 7 May 2008 02:54:10 +0000 (11:54 +0900)]
[MTD] [MAPS] Fix cmdlineparse handling in mapping files

Now it returns the 0 if cmdlineparse not supplied.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
15 years agoLinux 2.6.26-rc5 v2.6.26-rc5
Linus Torvalds [Thu, 5 Jun 2008 03:10:44 +0000 (20:10 -0700)]
Linux 2.6.26-rc5

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 5 Jun 2008 00:39:33 +0000 (17:39 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits)
  l2tp: Fix possible oops if transmitting or receiving when tunnel goes down
  tcp: Fix for race due to temporary drop of the socket lock in skb_splice_bits.
  tcp: Increment OUTRSTS in tcp_send_active_reset()
  raw: Raw socket leak.
  lt2p: Fix possible WARN_ON from socket code when UDP socket is closed
  USB ID for Philips CPWUA054/00 Wireless USB Adapter 11g
  ssb: Fix context assertion in ssb_pcicore_dev_irqvecs_enable
  libertas: fix command size for CMD_802_11_SUBSCRIBE_EVENT
  ipw2200: expire and use oldest BSS on adhoc create
  airo warning fix
  b43legacy: Fix controller restart crash
  sctp: Fix ECN markings for IPv6
  sctp: Flush the queue only once during fast retransmit.
  sctp: Start T3-RTX timer when fast retransmitting lowest TSN
  sctp: Correctly implement Fast Recovery cwnd manipulations.
  sctp: Move sctp_v4_dst_saddr out of loop
  sctp: retran_path update bug fix
  tcp: fix skb vs fack_count out-of-sync condition
  sunhme: Cleanup use of deprecated calls to save_and_cli and restore_flags.
  xfrm: xfrm_algo: correct usage of RIPEMD-160
  ...

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Thu, 5 Jun 2008 00:38:44 +0000 (17:38 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: switch /proc/led to seq_file
  sparc64: IO accessors fix

15 years agol2tp: Fix possible oops if transmitting or receiving when tunnel goes down
James Chapman [Wed, 4 Jun 2008 22:54:07 +0000 (15:54 -0700)]
l2tp: Fix possible oops if transmitting or receiving when tunnel goes down

Some problems have been experienced in the field which cause an oops
in the pppol2tp driver if L2TP tunnels fail while passing data.

The pppol2tp driver uses private data that is referenced via the
sk->sk_user_data of its UDP and PPPoL2TP sockets. This patch makes
sure that the driver uses sock_hold() when it holds a reference to the
sk pointer. This affects its sendmsg(), recvmsg(), getname(),
[gs]etsockopt() and ioctl() handlers.

Tested by ISP where problem was seen. System has been up 10 days with
no oops since running this patch. Without the patch, an oops would
occur every 1-2 days.

Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agotcp: Fix for race due to temporary drop of the socket lock in skb_splice_bits.
Octavian Purdila [Wed, 4 Jun 2008 22:45:58 +0000 (15:45 -0700)]
tcp: Fix for race due to temporary drop of the socket lock in skb_splice_bits.

skb_splice_bits temporary drops the socket lock while iterating over
the socket queue in order to break a reverse locking condition which
happens with sendfile. This, however, opens a window of opportunity
for tcp_collapse() to aggregate skbs and thus potentially free the
current skb used in skb_splice_bits and tcp_read_sock.

This patch fixes the problem by (re-)getting the same "logical skb"
after the lock has been temporary dropped.

Based on idea and initial patch from Evgeniy Polyakov.

Signed-off-by: Octavian Purdila <opurdila@ixiacom.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agotcp: Increment OUTRSTS in tcp_send_active_reset()
Sridhar Samudrala [Wed, 4 Jun 2008 22:19:35 +0000 (15:19 -0700)]
tcp: Increment OUTRSTS in tcp_send_active_reset()

TCP "resets sent" counter is not incremented when a TCP Reset is
sent via tcp_send_active_reset().

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoraw: Raw socket leak.
Denis V. Lunev [Wed, 4 Jun 2008 22:16:12 +0000 (15:16 -0700)]
raw: Raw socket leak.

The program below just leaks the raw kernel socket

int main() {
        int fd = socket(PF_INET, SOCK_RAW, IPPROTO_UDP);
        struct sockaddr_in addr;

        memset(&addr, 0, sizeof(addr));
        inet_aton("127.0.0.1", &addr.sin_addr);
        addr.sin_family = AF_INET;
        addr.sin_port = htons(2048);
        sendto(fd,  "a", 1, MSG_MORE, &addr, sizeof(addr));
        return 0;
}

Corked packet is allocated via sock_wmalloc which holds the owner socket,
so one should uncork it and flush all pending data on close. Do this in the
same way as in UDP.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agolt2p: Fix possible WARN_ON from socket code when UDP socket is closed
James Chapman [Wed, 4 Jun 2008 22:07:32 +0000 (15:07 -0700)]
lt2p: Fix possible WARN_ON from socket code when UDP socket is closed

If an L2TP daemon closes a tunnel socket while packets are queued in
the tunnel's reorder queue, a kernel warning is logged because the
socket is closed while skbs are still referencing it. The fix is to
purge the queue in the socket's release handler.

WARNING: at include/net/sock.h:351 udp_lib_unhash+0x41/0x68()
Pid: 12998, comm: openl2tpd Not tainted 2.6.25 #8
 [<c0423c58>] warn_on_slowpath+0x41/0x51
 [<c05d33a7>] udp_lib_unhash+0x41/0x68
 [<c059424d>] sk_common_release+0x23/0x90
 [<c05d16be>] udp_lib_close+0x8/0xa
 [<c05d8684>] inet_release+0x42/0x48
 [<c0592599>] sock_release+0x14/0x60
 [<c059299f>] sock_close+0x29/0x30
 [<c046ef52>] __fput+0xad/0x15b
 [<c046f1d9>] fput+0x17/0x19
 [<c046c8c4>] filp_close+0x50/0x5a
 [<c046da06>] sys_close+0x69/0x9f
 [<c04048ce>] syscall_call+0x7/0xb

Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireles...
David S. Miller [Wed, 4 Jun 2008 21:58:13 +0000 (14:58 -0700)]
Merge branch 'master' of /linux/kernel/git/linville/wireless-2.6

15 years agoUSB ID for Philips CPWUA054/00 Wireless USB Adapter 11g
Felix Homann [Thu, 29 May 2008 07:36:45 +0000 (00:36 -0700)]
USB ID for Philips CPWUA054/00 Wireless USB Adapter 11g

Enable the Philips CPWUA054/00 in p54usb.

Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agossb: Fix context assertion in ssb_pcicore_dev_irqvecs_enable
Michael Buesch [Mon, 2 Jun 2008 14:15:23 +0000 (16:15 +0200)]
ssb: Fix context assertion in ssb_pcicore_dev_irqvecs_enable

This fixes a context assertion in ssb that makes b44 print
out warnings on resume.

This fixes the following kernel oops:
http://www.kerneloops.org/oops.php?number=12732
http://www.kerneloops.org/oops.php?number=11410

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agolibertas: fix command size for CMD_802_11_SUBSCRIBE_EVENT
Holger Schurig [Fri, 30 May 2008 12:53:22 +0000 (14:53 +0200)]
libertas: fix command size for CMD_802_11_SUBSCRIBE_EVENT

The size was two small by two bytes.

Signed-off-by: Holger Schurig
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agoipw2200: expire and use oldest BSS on adhoc create
Dan Williams [Thu, 29 May 2008 18:38:28 +0000 (14:38 -0400)]
ipw2200: expire and use oldest BSS on adhoc create

If there are no networks on the free list, expire the oldest one when
creating a new adhoc network.  Because ipw2200 and the ieee80211 stack
don't actually cull old networks and place them back on the free list
unless they are needed for new probe responses, over time the free list
would become empty and creating an adhoc network would fail due to the !
list_empty(...) check.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agoairo warning fix
Andrew Morton [Wed, 28 May 2008 19:40:39 +0000 (12:40 -0700)]
airo warning fix

WARNING: space prohibited between function name and open parenthesis '('
#22: FILE: drivers/net/wireless/airo.c:2907:
+ while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) {

total: 0 errors, 1 warnings, 8 lines checked

./patches/wireless-airo-waitbusy-wont-delay.patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Dan Williams <dcbw@redhat.com>
Cc: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agob43legacy: Fix controller restart crash
Michael Buesch [Thu, 22 May 2008 15:06:36 +0000 (17:06 +0200)]
b43legacy: Fix controller restart crash

This fixes a kernel crash on rmmod, in the case where the controller
was restarted before doing the rmmod.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agosctp: Fix ECN markings for IPv6
Vlad Yasevich [Wed, 4 Jun 2008 19:40:15 +0000 (12:40 -0700)]
sctp: Fix ECN markings for IPv6

Commit e9df2e8fd8fbc95c57dbd1d33dada66c4627b44c ("[IPV6]: Use
appropriate sock tclass setting for routing lookup.") also changed the
way that ECN capable transports mark this capability in IPv6.  As a
result, SCTP was not marking ECN capablity because the traffic class
was never set.  This patch brings back the markings for IPv6 traffic.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosctp: Flush the queue only once during fast retransmit.
Vlad Yasevich [Wed, 4 Jun 2008 19:39:36 +0000 (12:39 -0700)]
sctp: Flush the queue only once during fast retransmit.

When fast retransmit is triggered by a sack, we should flush the queue
only once so that only 1 retransmit happens.  Also, since we could
potentially have non-fast-rtx chunks on the retransmit queue, we need
make sure any chunks eligable for fast retransmit are sent first
during fast retransmission.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Tested-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosctp: Start T3-RTX timer when fast retransmitting lowest TSN
Vlad Yasevich [Wed, 4 Jun 2008 19:39:11 +0000 (12:39 -0700)]
sctp: Start T3-RTX timer when fast retransmitting lowest TSN

When we are trying to fast retransmit the lowest outstanding TSN, we
need to restart the T3-RTX timer, so that subsequent timeouts will
correctly tag all the packets necessary for retransmissions.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Tested-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosctp: Correctly implement Fast Recovery cwnd manipulations.
Vlad Yasevich [Wed, 4 Jun 2008 19:38:43 +0000 (12:38 -0700)]
sctp: Correctly implement Fast Recovery cwnd manipulations.

Correctly keep track of Fast Recovery state and do not reduce
congestion window multiple times during sucht state.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Tested-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosctp: Move sctp_v4_dst_saddr out of loop
Gui Jianfeng [Wed, 4 Jun 2008 19:38:07 +0000 (12:38 -0700)]
sctp: Move sctp_v4_dst_saddr out of loop

There's no need to execute sctp_v4_dst_saddr() for each
iteration, just move it out of loop.

Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosctp: retran_path update bug fix
Gui Jianfeng [Wed, 4 Jun 2008 19:37:33 +0000 (12:37 -0700)]
sctp: retran_path update bug fix

If the current retran_path is the only active one, it should
update it to the the next inactive one.

Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoMerge branch 'net-2.6-misc-20080605a' of git://git.linux-ipv6.org/gitroot/yoshfuji...
David S. Miller [Wed, 4 Jun 2008 19:10:21 +0000 (12:10 -0700)]
Merge branch 'net-2.6-misc-20080605a' of git://git.linux-ipv6.org/gitroot/yoshfuji/linux-2.6-fix

15 years agotcp: fix skb vs fack_count out-of-sync condition
Ilpo Järvinen [Wed, 4 Jun 2008 19:07:44 +0000 (12:07 -0700)]
tcp: fix skb vs fack_count out-of-sync condition

This bug is able to corrupt fackets_out in very rare cases.
In order for this to cause corruption:
  1) DSACK in the middle of previous SACK block must be generated.
  2) In order to take that particular branch, part or all of the
     DSACKed segment must already be SACKed so that we have that
     in cache in the first place.
  3) The new info must be top enough so that fackets_out will be
     updated on this iteration.
...then fack_count is updated while skb wasn't, then we walk again
that particular segment thus updating fack_count twice for
a single skb and finally that value is assigned to fackets_out
by tcp_sacktag_one.

It is safe to call tcp_sacktag_one just once for a segment (at
DSACK), no need to call again for plain SACK.

Potential problem of the miscount are limited to premature entry
to recovery and to inflated reordering metric (which could even
cancel each other out in the most the luckiest scenarios :-)).
Both are quite insignificant in worst case too and there exists
also code to reset them (fackets_out once sacked_out becomes zero
and reordering metric on RTO).

This has been reported by a number of people, because it occurred
quite rarely, it has been very evasive. Andy Furniss was able to
get it to occur couple of times so that a bit more info was
collected about the problem using a debug patch, though it still
required lot of checking around. Thanks also to others who have
tried to help here.

This is listed as Bugzilla #10346. The bug was introduced by
me in commit 68f8353b48 ([TCP]: Rewrite SACK block processing &
sack_recv_cache use), I probably thought back then that there's
need to scan that entry twice or didn't dare to make it go
through it just once there. Going through twice would have
required restoring fack_count after the walk but as noted above,
I chose to drop the additional walk step altogether here.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agosunhme: Cleanup use of deprecated calls to save_and_cli and restore_flags.
Mark Asselstine [Wed, 4 Jun 2008 19:06:28 +0000 (12:06 -0700)]
sunhme: Cleanup use of deprecated calls to save_and_cli and restore_flags.

Make use of local_irq_save and local_irq_restore rather then the
deprecated save_and_cli and restore_flags calls.

Signed-off-by: Mark Asselstine <mark.asselstine@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoxfrm: xfrm_algo: correct usage of RIPEMD-160
Adrian-Ken Rueegsegger [Wed, 4 Jun 2008 19:04:55 +0000 (12:04 -0700)]
xfrm: xfrm_algo: correct usage of RIPEMD-160

This patch fixes the usage of RIPEMD-160 in xfrm_algo which in turn
allows hmac(rmd160) to be used as authentication mechanism in IPsec
ESP and AH (see RFC 2857).

Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years ago[IPV6]: Do not change protocol for UDPv6 sockets with pending sent data.
Denis V. Lunev [Wed, 4 Jun 2008 11:49:08 +0000 (15:49 +0400)]
[IPV6]: Do not change protocol for UDPv6 sockets with pending sent data.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6]: inet_sk(sk)->cork.opt leak
Denis V. Lunev [Wed, 4 Jun 2008 11:49:07 +0000 (15:49 +0400)]
[IPV6]: inet_sk(sk)->cork.opt leak

IPv6 UDP sockets wth IPv4 mapped address use udp_sendmsg to send the data
actually. In this case ip_flush_pending_frames should be called instead
of ip6_flush_pending_frames.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6]: Do not change protocol for raw IPv6 sockets.
Denis V. Lunev [Wed, 4 Jun 2008 11:49:06 +0000 (15:49 +0400)]
[IPV6]: Do not change protocol for raw IPv6 sockets.

It is not allowed to change underlying protocol for
   int fd = socket(PF_INET6, SOCK_RAW, IPPROTO_UDP);

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6] NETNS: Handle ancillary data in appropriate namespace.
YOSHIFUJI Hideaki [Wed, 4 Jun 2008 04:02:49 +0000 (13:02 +0900)]
[IPV6] NETNS: Handle ancillary data in appropriate namespace.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6]: Check outgoing interface even if source address is unspecified.
YOSHIFUJI Hideaki [Wed, 4 Jun 2008 04:01:37 +0000 (13:01 +0900)]
[IPV6]: Check outgoing interface even if source address is unspecified.

The outgoing interface index (ipi6_ifindex) in IPV6_PKTINFO
ancillary data, is not checked if the source address (ipi6_addr)
is unspecified.  If the ipi6_ifindex is the not-exist interface,
it should be fail.

Based on patch from Shan Wei <shanwei@cn.fujitsu.com> and
Brian Haley <brian.haley@hp.com>.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6]: Fix the data length of get destination options with short length
Yang Hongyang [Wed, 28 May 2008 08:27:28 +0000 (16:27 +0800)]
[IPV6]: Fix the data length of get destination options with short length

 If get destination options with length which is not enough for that
option,getsockopt() will still return the real length of the option,
which is larger then the buffer space.
 This is because ipv6_getsockopt_sticky() returns the real length of
the option.

This patch fix this problem.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6]: Fix the return value of get destination options with NULL data pointer
Yang Hongyang [Wed, 28 May 2008 08:23:47 +0000 (16:23 +0800)]
[IPV6]: Fix the return value of get destination options with NULL data pointer

If we pass NULL data buffer to getsockopt(), it will return 0,
and the option length is set to -EFAULT:
    getsockopt(sk, IPPROTO_IPV6, IPV6_DSTOPTS, NULL, &len);

This is because ipv6_getsockopt_sticky() will return -EFAULT or
-EINVAL if some error occur.

This patch fix this problem.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs.
YOSHIFUJI Hideaki [Tue, 27 May 2008 08:37:49 +0000 (17:37 +0900)]
[IPV6] ADDRCONF: Allow longer lifetime on 64bit archs.

- Allow longer lifetimes (>= 0x7fffffff/HZ) on 64bit archs
  by using unsigned long.
- Shadow this arithmetic overflow workaround by introducing
  helper functions: addrconf_timeout_fixup() and
  addrconf_finite_timeout().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV4] TUNNEL4: Fix incoming packet length check for inter-protocol tunnel.
YOSHIFUJI Hideaki [Fri, 30 May 2008 02:35:03 +0000 (11:35 +0900)]
[IPV4] TUNNEL4: Fix incoming packet length check for inter-protocol tunnel.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6] TUNNEL6: Fix incoming packet length check for inter-protocol tunnel.
Colin [Mon, 26 May 2008 16:04:43 +0000 (00:04 +0800)]
[IPV6] TUNNEL6: Fix incoming packet length check for inter-protocol tunnel.

I discover a strange behavior in [ipv4 in ipv6] tunnel. When IPv6 tunnel
payload is less than 40(0x28), packet can be sent to network, received in
physical interface, but not seen in IP tunnel interface. No counter increase
in tunnel interface.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6] ADDRCONF: Check range of prefix length
Thomas Graf [Wed, 28 May 2008 14:54:22 +0000 (16:54 +0200)]
[IPV6] ADDRCONF: Check range of prefix length

As of now, the prefix length is not vaildated when adding or deleting
addresses. The value is passed directly into the inet6_ifaddr structure
and later passed on to memcmp() as length indicator which relies on
the value never to exceed 128 (bits).

Due to the missing check, the currently code allows for any 8 bit
value to be passed on as prefix length while using the netlink
interface, and any 32 bit value while using the ioctl interface.

[Use unsigned int instead to generate better code - yoshfuji]

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years ago[IPV6] UDP: Possible dst leak in udpv6_sendmsg.
YOSHIFUJI Hideaki [Tue, 3 Jun 2008 16:30:25 +0000 (01:30 +0900)]
[IPV6] UDP: Possible dst leak in udpv6_sendmsg.

ip6_sk_dst_lookup returns held dst entry. It should be released
on all paths beyond this point. Add missed release when up->pending
is set.

Bug report and initial patch by Denis V. Lunev <den@openvz.org>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Denis V. Lunev <den@openvz.org>
15 years ago[SCTP]: Fix NULL dereference of asoc.
YOSHIFUJI Hideaki [Thu, 29 May 2008 10:55:05 +0000 (19:55 +0900)]
[SCTP]: Fix NULL dereference of asoc.

Commit 7cbca67c073263c179f605bdbbdc565ab29d801d ("[IPV6]: Support
Source Address Selection API (RFC5014)") introduced NULL dereference
of asoc to sctp_v6_get_saddr in net/sctp/ipv6.c.
Pointed out by Johann Felix Soden <johfel@users.sourceforge.net>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
15 years agoMerge branch 'davem-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
David S. Miller [Wed, 4 Jun 2008 18:50:00 +0000 (11:50 -0700)]
Merge branch 'davem-fixes' of /linux/kernel/git/jgarzik/netdev-2.6

15 years agotcp: Fix inconsistency source (CA_Open only when !tcp_left_out(tp))
Ilpo Järvinen [Wed, 4 Jun 2008 18:34:22 +0000 (11:34 -0700)]
tcp: Fix inconsistency source (CA_Open only when !tcp_left_out(tp))

It is possible that this skip path causes TCP to end up into an
invalid state where ca_state was left to CA_Open while some
segments already came into sacked_out. If next valid ACK doesn't
contain new SACK information TCP fails to enter into
tcp_fastretrans_alert(). Thus at least high_seq is set
incorrectly to a too high seqno because some new data segments
could be sent in between (and also, limited transmit is not
being correctly invoked there). Reordering in both directions
can easily cause this situation to occur.

I guess we would want to use tcp_moderate_cwnd(tp) there as well
as it may be possible to use this to trigger oversized burst to
network by sending an old ACK with huge amount of SACK info, but
I'm a bit unsure about its effects (mainly to FlightSize), so to
be on the safe side I just currently fixed it minimally to keep
TCP's state consistent (obviously, such nasty ACKs have been
possible this far). Though it seems that FlightSize is already
underestimated by some amount, so probably on the long term we
might want to trigger recovery there too, if appropriate, to make
FlightSize calculation to resemble reality at the time when the
losses where discovered (but such change scares me too much now
and requires some more thinking anyway how to do that as it
likely involves some code shuffling).

This bug was found by Brian Vowell while running my TCP debug
patch to find cause of another TCP issue (fackets_out
miscount).

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoFix uart_set_ldisc() function type
Linus Torvalds [Wed, 4 Jun 2008 17:35:03 +0000 (10:35 -0700)]
Fix uart_set_ldisc() function type

Commit 64e9159f5d2c4edf5fa6425031e556f8fddaf7e6 ("serial_core:
uart_set_ldisc infrastructure") introduced the ability for low-level
serial drivers to be informed when the tty ldisc changes.

However, the actual tty-layer function that does this callback for
serial devices was declared with the wrong type, having a spurious and
unused 'ldisc' argument.

This fixed the resulting compiler warning by just removing it.

Acked-by: Blithering Idiot <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agonetfilter: nf_conntrack_ipv6: fix inconsistent lock state in nf_ct_frag6_gather()
Jarek Poplawski [Wed, 4 Jun 2008 16:58:27 +0000 (09:58 -0700)]
netfilter: nf_conntrack_ipv6: fix inconsistent lock state in nf_ct_frag6_gather()

[   63.531438] =================================
[   63.531520] [ INFO: inconsistent lock state ]
[   63.531520] 2.6.26-rc4 #7
[   63.531520] ---------------------------------
[   63.531520] inconsistent {softirq-on-W} -> {in-softirq-W} usage.
[   63.531520] tcpsic6/3864 [HC0[0]:SC1[1]:HE1:SE0] takes:
[   63.531520]  (&q->lock#2){-+..}, at: [<c07175b0>] ipv6_frag_rcv+0xd0/0xbd0
[   63.531520] {softirq-on-W} state was registered at:
[   63.531520]   [<c0143bba>] __lock_acquire+0x3aa/0x1080
[   63.531520]   [<c0144906>] lock_acquire+0x76/0xa0
[   63.531520]   [<c07a8f0b>] _spin_lock+0x2b/0x40
[   63.531520]   [<c0727636>] nf_ct_frag6_gather+0x3f6/0x910
 ...

According to this and another similar lockdep report inet_fragment
locks are taken from nf_ct_frag6_gather() with softirqs enabled, but
these locks are mainly used in softirq context, so disabling BHs is
necessary.

Reported-and-tested-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agonetfilter: xt_connlimit: fix accouning when receive RST packet in ESTABLISHED state
Dong Wei [Wed, 4 Jun 2008 16:57:51 +0000 (09:57 -0700)]
netfilter: xt_connlimit: fix accouning when receive RST packet in ESTABLISHED state

In xt_connlimit match module, the counter of an IP is decreased when
the TCP packet is go through the chain with ip_conntrack state TW.
Well, it's very natural that the server and client close the socket
with FIN packet. But when the client/server close the socket with RST
packet(using so_linger), the counter for this connection still exsit.
The following patch can fix it which is based on linux-2.6.25.4

Signed-off-by: Dong Wei <dwei.zh@gmail.com>
Acked-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Wed, 4 Jun 2008 16:43:58 +0000 (09:43 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  [ALSA] hda - COMPAL IFL90/JFL-92 laptop quirk
  [ALSA] hda - Fix resume of auto-config mode with Realtek codecs
  [ALSA] hda - Fix model for LG LS75 laptop
  [ALSA] hda - Fix mic input on HP2133
  [ALSA] ac97 - Fix ASUS A9T laptop output

15 years ago[MTD] [NAND] pxa: fix incorrect calling of pxa3xx_nand_config() on resume path
Eric Miao [Wed, 21 May 2008 09:26:15 +0000 (17:26 +0800)]
[MTD] [NAND] pxa: fix incorrect calling of pxa3xx_nand_config() on resume path

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 4 Jun 2008 16:15:51 +0000 (09:15 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/x86/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip:
  x86, fpu: fix CONFIG_PREEMPT=y corruption of application's FPU stack
  suspend-vs-iommu: prevent suspend if we could not resume
  x86: section mismatch fix
  x86: fix Xorg crash with xf86MapVidMem error
  x86: fix pointer type warning in arch/x86/mm/init_64.c:early_memtest
  x86: fix bad pmd ffff810000207xxx(9090909090909090)
  x86: ioremap fix failing nesting check
  x86: fix broken math-emu with lazy allocation of fpu area
  x86: enable preemption in delay
  x86: disable preemption in native_smp_prepare_cpus
  x86: fix APIC warning on 32bit v2

15 years agoSmack: fuse mount hang fix
Casey Schaufler [Mon, 2 Jun 2008 17:04:32 +0000 (10:04 -0700)]
Smack: fuse mount hang fix

The d_instantiate hook for Smack can hang on the root inode of a
filesystem if the file system code has not really done all the set-up.
Fuse is known to encounter this problem.

This change detects an attempt to instantiate a root inode and addresses
it early in the processing, before any attempt is made to do something
that might hang.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Tested-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Wed, 4 Jun 2008 15:36:56 +0000 (08:36 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl
  libata: kill unused constants
  sata_mv: PHY_MODE4 cleanups
  [libata] ata_piix: more acer short cable quirks
  [libata] ACPI: Properly handle bay devices in dock stations

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
Linus Torvalds [Wed, 4 Jun 2008 15:36:09 +0000 (08:36 -0700)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] qla2xxx: Update version number to 8.02.01-k4.
  [SCSI] qla2xxx: Correct handling of AENs postings for vports.
  [SCSI] qla2xxx: Revert "qla2xxx: Use proper HA during asynchronous event handling."
  [SCSI] ibmvscsi: Non SCSI error status fixup
  [SCSI] fusion mpt: fix target missing after resetting external raid
  [SCSI] fix intermittent oops in scsi_bus_uevent
  [SCSI] qla2xxx: Update version number to 8.02.01-k3.
  [SCSI] qla2xxx: Revert "qla2xxx: Validate mid-layer 'underflow' during check-condition handling."
  [SCSI] qla2xxx: Disable local-interrupts while polling for RISC status.
  [SCSI] qla2xxx: Extend the 'fw_dump' SYSFS node the ability to initiate a firmware dump.
  [SCSI] qla2xxx: Don't depend on mailbox return values while enabling FCE tracing.
  [SCSI] qla2xxx: Convert vport_sem to a mutex
  [SCSI] qla2xxx: firmware semaphore to mutex
  [SCSI] qla2xxx: Correct locking within MSI-X interrupt handlers.
  [SCSI] qla2xxx: Display driver version at module init-time.
  [SCSI] qla2xxx: Return correct port_type to FC-transport for Vports.

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.26
Linus Torvalds [Wed, 4 Jun 2008 15:35:44 +0000 (08:35 -0700)]
Merge git://git./linux/kernel/git/lethal/sh-2.6.26

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.26:
  sh: Add defconfig for RSK7203.
  sh: Update SE7206 defconfig.
  sh: Disable 4KSTACKS on nommu.
  sh: fix miscompilation of ip_fast_csum with gcc >= 4.3
  sh: module.c use kernel unaligned helpers
  sh/kernel/cpu/irq/intc-sh5.c build fix

15 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel...
Linus Torvalds [Wed, 4 Jun 2008 15:08:27 +0000 (08:08 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jwessel/linux-2.6-kgdb

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
  kgdbts: Use HW breakpoints with CONFIG_DEBUG_RODATA
  kgdb: use common ascii helpers and put_unaligned_be32 helper

15 years agobogus format in ip6mr
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
bogus format in ip6mr

ptrdiff_t is %t..., not %Z...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agocelleb_scc_pciex endianness misannotations
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
celleb_scc_pciex endianness misannotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agompc52xx_gpio iomem annotations
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
mpc52xx_gpio iomem annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agos2io iomem annotations
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
s2io iomem annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agocifs endianness fixes
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
cifs endianness fixes

__le16 fields used as host-endian.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Steve French <smfrench@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoisp1760-if iomem annotations
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
isp1760-if iomem annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agocdc-wdm endianness fixes
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
cdc-wdm endianness fixes

* wMaxPacketSize is le16; copying it to a field of local structure and then
  using that field as host-endian (size of object to be allocated) is broken.
* bMaxPacketSize0 is 8-bit; feeding it to le16_to_cpu() is bogus and since the
  result is used as host-endian, it's not even misspelled cpu_to_le16().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agousb/c67x00 endianness annotations
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
usb/c67x00 endianness annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoibmaem endianness annotations
Al Viro [Mon, 2 Jun 2008 09:59:02 +0000 (10:59 +0100)]
ibmaem endianness annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agox86, fpu: fix CONFIG_PREEMPT=y corruption of application's FPU stack
Suresh Siddha [Mon, 2 Jun 2008 22:57:27 +0000 (15:57 -0700)]
x86, fpu: fix CONFIG_PREEMPT=y corruption of application's FPU stack

Jürgen Mell reported an FPU state corruption bug under CONFIG_PREEMPT,
and bisected it to commit v2.6.19-1363-gacc2076, "i386: add sleazy FPU
optimization".

Add tsk_used_math() checks to prevent calling math_state_restore()
which can sleep in the case of !tsk_used_math(). This prevents
making a blocking call in __switch_to().

Apparently "fpu_counter > 5" check is not enough, as in some signal handling
and fork/exec scenarios, fpu_counter > 5 and !tsk_used_math() is possible.

It's a side effect though. This is the failing scenario:

process 'A' in save_i387_ia32() just after clear_used_math()

Got an interrupt and pre-empted out.

At the next context switch to process 'A' again, kernel tries to restore
the math state proactively and sees a fpu_counter > 0 and !tsk_used_math()

This results in init_fpu() during the __switch_to()'s math_state_restore()

And resulting in fpu corruption which will be saved/restored
(save_i387_fxsave and restore_i387_fxsave) during the remaining
part of the signal handling after the context switch.

Bisected-by: Jürgen Mell <j.mell@t-online.de>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Tested-by: Jürgen Mell <j.mell@t-online.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org
15 years agosuspend-vs-iommu: prevent suspend if we could not resume
Pavel Machek [Thu, 29 May 2008 07:30:21 +0000 (00:30 -0700)]
suspend-vs-iommu: prevent suspend if we could not resume

iommu/gart support misses suspend/resume code, which can do bad stuff,
including memory corruption on resume.  Prevent system suspend in case we
would be unable to resume.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Tested-by: Patrick <ragamuffin@datacomm.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agox86: section mismatch fix
Andrew Morton [Thu, 29 May 2008 07:01:28 +0000 (00:01 -0700)]
x86: section mismatch fix

Fix this:

 WARNING: vmlinux.o(.text+0x114bb): Section mismatch in reference from
 the function nopat() to the function .cpuinit.text:pat_disable()
 The function nopat() references
 the function __cpuinit pat_disable().
 This is often because nopat lacks a __cpuinit
 annotation or the annotation of pat_disable is wrong.

Reported-by: "Fabio Comolli" <fabio.comolli@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agox86: fix Xorg crash with xf86MapVidMem error
Venki Pallipadi [Thu, 29 May 2008 19:01:44 +0000 (12:01 -0700)]
x86: fix Xorg crash with xf86MapVidMem error

Clarify the usage of mtrr_lookup() in PAT code, and to make PAT code
resilient to mtrr lookup problems.

Specifically, pat_x_mtrr_type() is restructured to highlight, under what
conditions we look for mtrr hint. pat_x_mtrr_type() uses a default type
when there are any errors in mtrr lookup (still maintaining the pat
consistency). And, reserve_memtype() highlights its usage ot mtrr_lookup
for request type of '-1' and also defaults in a sane way on any mtrr
lookup failure.

pat.c looks at mtrr type of a range to get a hint on what mapping type
to request when user/API: (1) hasn't specified any type (/dev/mem
mapping) and we do not want to take performance hit by always mapping
UC_MINUS. This will be the case for /dev/mem mappings used to map BIOS
area or ACPI region which are WB'able. In this case, as long as MTRR is
not WB, PAT will request UC_MINUS for such mappings.

(2) user/API requests WB mapping while in reality MTRR may have UC or
WC. In this case, PAT can map as WB (without checking MTRR) and still
effective type will be UC or WC. But, a subsequent request to map same
region as UC or WC may fail, as the region will get trackked as WB in
PAT list. Looking at MTRR hint helps us to track based on effective type
rather than what user requested. Again, here mtrr_lookup is only used as
hint and we fallback to WB mapping (as requested by user) as default.

In both cases, after using the mtrr hint, we still go through the
memtype list to make sure there are no inconsistencies among multiple
users.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Tested-by: Rufus & Azrael <rufus-azrael@numericable.fr>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agox86: fix pointer type warning in arch/x86/mm/init_64.c:early_memtest
Kevin Winchester [Fri, 30 May 2008 00:14:35 +0000 (21:14 -0300)]
x86: fix pointer type warning in arch/x86/mm/init_64.c:early_memtest

Changed the call to find_e820_area_size to pass u64 instead of unsigned long.

Signed-off-by: Kevin Winchester <kjwinchester@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agox86: fix bad pmd ffff810000207xxx(9090909090909090)
Hugh Dickins [Wed, 28 May 2008 18:36:07 +0000 (19:36 +0100)]
x86: fix bad pmd ffff810000207xxx(9090909090909090)

OGAWA Hirofumi and Fede have reported rare pmd_ERROR messages:
mm/memory.c:127: bad pmd ffff810000207xxx(9090909090909090).

Initialization's cleanup_highmap was leaving alignment filler
behind in the pmd for MODULES_VADDR: when vmalloc's guard page
would occupy a new page table, it's not allocated, and then
module unload's vfree hits the bad 9090 pmd entry left over.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agox86: ioremap fix failing nesting check
Ingo Molnar [Tue, 27 May 2008 07:56:49 +0000 (09:56 +0200)]
x86: ioremap fix failing nesting check

Mika Kukkonen noticed that the nesting check in early_iounmap() is not
actually done.

Reported-by: Mika Kukkonen <mikukkon@srv1-m700-lanp.koti>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: torvalds@linux-foundation.org
Cc: arjan@linux.intel.com
Cc: mikukkon@iki.fi
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
15 years agox86: fix broken math-emu with lazy allocation of fpu area
Suresh Siddha [Fri, 23 May 2008 23:26:37 +0000 (16:26 -0700)]
x86: fix broken math-emu with lazy allocation of fpu area

Fix the math emulation that got broken with the recent lazy allocation of FPU
area. init_fpu() need to be added for the math-emulation path aswell
for the FPU area allocation.

math emulation enabled kernel booted fine with this, in the presence
of "no387 nofxsr" boot param.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: hpa@zytor.com
Cc: mingo@elte.hu
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
15 years agox86: enable preemption in delay
Steven Rostedt [Sun, 25 May 2008 15:13:32 +0000 (11:13 -0400)]
x86: enable preemption in delay

The RT team has been searching for a nasty latency. This latency shows
up out of the blue and has been seen to be as big as 5ms!

Using ftrace I found the cause of the latency.

   pcscd-2995  3dNh1 52360300us : irq_exit (smp_apic_timer_interrupt)
   pcscd-2995  3dN.2 52360301us : idle_cpu (irq_exit)
   pcscd-2995  3dN.2 52360301us : rcu_irq_exit (irq_exit)
   pcscd-2995  3dN.1 52360771us : smp_apic_timer_interrupt (apic_timer_interrupt
)
   pcscd-2995  3dN.1 52360771us : exit_idle (smp_apic_timer_interrupt)

Here's an example of a 400 us latency. pcscd took a timer interrupt and
returned with "need resched" enabled, but did not reschedule until after
the next interrupt came in at 52360771us 400us later!

At first I thought we somehow missed a preemption check in entry.S. But
I also noticed that this always seemed to happen during a __delay call.

   pcscd-2995  3dN.2 52360836us : rcu_irq_exit (irq_exit)
   pcscd-2995  3.N.. 52361265us : preempt_schedule (__delay)

Looking at the x86 delay, I found my problem.

In git commit 35d5d08a085c56f153458c3f5d8ce24123617faf, Andrew Morton
placed preempt_disable around the entire delay due to TSC's not working
nicely on SMP.  Unfortunately for those that care about latencies this
is devastating! Especially when we have callers to mdelay(8).

Here I enable preemption during the loop and account for anytime the task
migrates to a new CPU. The delay asked for may be extended a bit by
the migration, but delay only guarantees that it will delay for that minimum
time. Delaying longer should not be an issue.

[
  Thanks to Thomas Gleixner for spotting that cpu wasn't updated,
    and to place the rep_nop between preempt_enabled/disable.
]

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Cc: akpm@osdl.org
Cc: Clark Williams <clark.williams@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Luis Claudio R. Goncalves" <lclaudio@uudg.org>
Cc: Gregory Haskins <ghaskins@novell.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andi Kleen <andi-suse@firstfloor.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
15 years agox86: disable preemption in native_smp_prepare_cpus
Ingo Molnar [Mon, 12 May 2008 13:44:38 +0000 (15:44 +0200)]
x86: disable preemption in native_smp_prepare_cpus

Priit Laes reported the following warning:

Call Trace:
 [<ffffffff8022f1e1>] warn_on_slowpath+0x51/0x63
 [<ffffffff80282e48>] sys_ioctl+0x2d/0x5d
 [<ffffffff805185ff>] _spin_lock+0xe/0x24
 [<ffffffff80227459>] task_rq_lock+0x3d/0x73
 [<ffffffff805133c3>] set_cpu_sibling_map+0x336/0x350
 [<ffffffff8021c1b8>] read_apic_id+0x30/0x62
 [<ffffffff806d921d>] verify_local_APIC+0x90/0x138
 [<ffffffff806d84b5>] native_smp_prepare_cpus+0x1f9/0x305
 [<ffffffff806ce7b1>] kernel_init+0x59/0x2d9
 [<ffffffff80518a26>] _spin_unlock_irq+0x11/0x2b
 [<ffffffff8020bf48>] child_rip+0xa/0x12
 [<ffffffff806ce758>] kernel_init+0x0/0x2d9
 [<ffffffff8020bf3e>] child_rip+0x0/0x12

fix this by generally disabling preemption in native_smp_prepare_cpus().

Reported-and-bisected-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
15 years agox86: fix APIC warning on 32bit v2
Yinghai Lu [Fri, 23 May 2008 01:22:30 +0000 (18:22 -0700)]
x86: fix APIC warning on 32bit v2

for http://bugzilla.kernel.org/show_bug.cgi?id=10613

BIOS bug, APIC version is 0 for CPU#0! fixing up to 0x10. (tell your hw vendor)

v2: fix 64 bit compilation

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Gabriel C <nix.or.die@googlemail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
15 years agolibata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl
Alan Cox [Thu, 29 May 2008 21:10:58 +0000 (22:10 +0100)]
libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl

- Make ata_sff_altstatus private so nobody uses it by mistake
- Drop the 400nS delay from it

Add

ata_sff_irq_status - encapsulates the IRQ check logic

This function keeps the existing behaviour for altstatus using devices. I
actually suspect the logic was wrong before the changes but -rc isn't the
time to play with that

ata_sff_sync - ensure writes hit the device

Really we want an io* operation for 'is posted' eg ioisposted(ioaddr) so
that we can fix the nasty delay this causes on most systems.

- ata_sff_pause - 400nS delay

Ensure the command hit the device and delay 400nS

- ata_sff_dma_pause

Ensure the I/O hit the device and enforce an HDMA1:0 transition delay.
Requires altstatus register exists, BUG if not so we don't risk
corruption in MWDMA modes. (UDMA the checksum will save your backside in
theory)

The only other complication then is devices with their own handlers.
rb532 can use dma_pause but scc needs to access its own altstatus
register for internal errata workarounds so directly call the drivers own
altstatus function.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agolibata: kill unused constants
Tejun Heo [Mon, 19 May 2008 17:17:50 +0000 (02:17 +0900)]
libata: kill unused constants

Kill a few unused constants.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>