Commit graph

48847 commits

Author SHA1 Message Date
Jean-Francois Moine
8d768e14fc V4L/DVB (9080): gspca: Add a delay after writing to the sonixj sensors.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 23:09:51 -03:00
Shane
05d3c1e2fb V4L/DVB (9075): gspca: Bad check of returned status in i2c_read() spca561.
This makes auto gain functional on 04fc:0561.

Signed-off-by: Shane <gnome42@gmail.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 23:09:24 -03:00
Ralph Loader
fe6c700ff3 V4L/DVB (9053): fix buffer overflow in uvc-video
There is a buffer overflow in drivers/media/video/uvc/uvc_ctrl.c:

INFO: 0xf2c5ce08-0xf2c5ce0b. First byte 0xa1 instead of 0xcc
INFO: Allocated in uvc_query_v4l2_ctrl+0x3c/0x239 [uvcvideo] age=13 cpu=1 pid=4975
...

A fixed size 8-byte buffer is allocated, and a variable size field is read
into it; there is no particular bound on the size of the field (it is
dependent on hardware and configuration) and it can overflow [also
verified by inserting printk's.]

The patch attempts to size the buffer to the correctly.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 23:04:32 -03:00
Patrick Boettcher
bda1cda54b V4L/DVB (9043): S5H1420: Fix size of shadow-array to avoid overflow
The array size of 'shadow' still needs to be fixed in order to not overflow when reading register 0x00.

Thanks to Oliver Endriss for pointing that out.

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 23:01:21 -03:00
Patrick Boettcher
c18c5ffe13 V4L/DVB (9037): Fix support for Hauppauge Nova-S SE
Different backends have different input busses (saa7146, flexcop).
To reflect that a config-option to the s5h1420-driver was added which makes
the output mode selectable.

Furthermore the s5h1420-driver is now doing the same i2c-method as it was done
before adding support for other i2c-users.

This patch needs to go into the current release of the kernel, as this driver
is currently broken.

(Thanks to Eberhard Kaltenhaeuser for helping out to debug this issue.)

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 23:00:46 -03:00
Andreas Oberritter
dda06a8e46 V4L/DVB (9029): Fix deadlock in demux code
The functions dvb_dmxdev_section_callback, dvb_dmxdev_ts_callback,
dvb_dmx_swfilter_packet, dvb_dmx_swfilter_packets, dvb_dmx_swfilter and
dvb_dmx_swfilter_204 may be called from both interrupt and process
context. Therefore they need to be protected by spin_lock_irqsave()
instead of spin_lock().

This fixes a deadlock discovered by lockdep.

Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:59:55 -03:00
Michael Krufky
3d843c92da V4L/DVB (8979): sms1xxx: Add new USB product ID for Hauppauge WinTV MiniStick
2040:5510 is the same hardware as 2040:5500

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:44:58 -03:00
Michael Krufky
7a9b5fc5fd V4L/DVB (8978): sms1xxx: fix product name for Hauppauge WinTV MiniStick
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:44:52 -03:00
Devin Heitmueller
5ea7fe48a9 V4L/DVB (8967): Use correct XC3028L firmware for AMD ATI TV Wonder 600
The AMD ATI TV Wonder 600 has an XC3028L and *not* an XC3028, so we need to
load the proper firmware to prevent the device from overheating.

Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:43:41 -03:00
Dean Anderson
a1c4530e4e V4L/DVB (8963): s2255drv field count fix
Fixes videobuf field_count

Signed-off-by: Dean Anderson <dean@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:42:58 -03:00
Jean Delvare
a30ee3c747 V4L/DVB (8961): zr36067: Fix RGBR pixel format
The zr36067 driver is improperly declaring pixel format RGBP twice,
once as "16-bit RGB LE" and once as "16-bit RGB BE". The latter is
actually RGBR. Fix the code to properly map both pixel formats.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:40:33 -03:00
Andrew Morton
ec16d02083 V4L/DVB (8960): drivers/media/video/cafe_ccic.c needs mm.h
sparc32 allmodconfig:

drivers/media/video/cafe_ccic.c: In function 'cafe_setup_siobuf':
drivers/media/video/cafe_ccic.c:1192: error: implicit declaration of function 'PAGE_ALIGN'
drivers/media/video/cafe_ccic.c: At top level:
drivers/media/video/cafe_ccic.c:1430: error: variable 'cafe_v4l_vm_ops' has initializer but incomplete type
drivers/media/video/cafe_ccic.c:1431: error: unknown field 'open' specified in initializer
drivers/media/video/cafe_ccic.c:1431: warning: excess elements in struct initializer
drivers/media/video/cafe_ccic.c:1431: warning: (near initialization for 'cafe_v4l_vm_ops')
drivers/media/video/cafe_ccic.c:1432: error: unknown field 'close' specified in initializer
drivers/media/video/cafe_ccic.c:1433: warning: excess elements in struct initializer
drivers/media/video/cafe_ccic.c:1433: warning: (near initialization for 'cafe_v4l_vm_ops')
drivers/media/video/cafe_ccic.c: In function 'cafe_v4l_mmap':
drivers/media/video/cafe_ccic.c:1444: error: 'VM_WRITE' undeclared (first use in this function)
drivers/media/video/cafe_ccic.c:1444: error: (Each undeclared identifier is reported only once
drivers/media/video/cafe_ccic.c:1444: error: for each function it appears in.)
drivers/media/video/cafe_ccic.c:1444: error: 'VM_SHARED' undeclared (first use in this function)
drivers/media/video/cafe_ccic.c:1461: error: 'VM_DONTEXPAND' undeclared (first use in this function)

This build breakage is caused by some header file shuffle in linux-next.  But
I suggest that this patch be merged ahead of linux-next to avoid bisection
breakage.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:40:18 -03:00
Jean Delvare
bba4449c63 V4L/DVB (8958): zr36067: Return proper bytes-per-line value
The zr36067 driver should return the actual bytes-per-line value when
queried with ioctl VIDIOC_G_FMT, instead of 0. Otherwise user-space
applications can get confused.

Likewise, with ioctl VIDIOC_S_FMT, we are supposed to fill the
bytes-per-line value. And we shouldn't fail if the caller sets the
initial value to something different from 0. This is perfectly valid
for applications to pre-fill this field with the value they expect.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:38:49 -03:00
Jean Delvare
c014ec90bc V4L/DVB (8957): zr36067: Restore the default pixel format
Restore the default pixel format to YUYV as it used to be before
kernel 2.6.23. It was accidentally changed to BGR3 by commit
603d6f2c8f.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:38:39 -03:00
Jean Delvare
c37396c194 V4L/DVB (8955): bttv: Prevent NULL pointer dereference in radio_open
Fix the following crash in the bttv driver:

BUG: unable to handle kernel NULL pointer dereference at 000000000000036c
IP: [<ffffffffa037860a>] radio_open+0x3a/0x170 [bttv]

This happens because radio_open assumes that all present bttv devices
have a radio function. If a bttv device without radio and one with
radio are installed on the same system, and the one without radio is
registered first, then radio_open checks for the radio device number
of a bttv device that has no radio function, and this breaks. All we
have to do to fix it is to skip bttv devices without a radio function.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:38:12 -03:00
Douglas Schilling Landgraf
c737684b51 V4L/DVB (8935): em28xx-cards: Remove duplicate entry (EM2800_BOARD_KWORLD_USB2800)
Removed duplicated entry for EM2800_BOARD_KWORLD_USB2800

Signed-off-by: Douglas Schilling Landgraf <dougsland@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:34:24 -03:00
Costantino Leandro
5be8b73e12 V4L/DVB (8933): gspca: Disable light frquency for zc3xx cs2102 Kokom.
CS2102K stop streaming on setlightfreq (50Hz & 60Hz).
Disable it for now until a correct solution is found.

Signed-off-by: Costantino Leandro <le_costantino@pixartargentina.com.ar>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:34:20 -03:00
Jean-Francois Moine
0d0548e67f V4L/DVB (8926): gspca: Bad fix of leak memory (changeset 43d2ead315b1).
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:28:14 -03:00
Hans Verkuil
1167b2e495 V4L/DVB (8919): cx18: Fix tuner audio input for Compro H900 cards
Earlier fixes to get the tuner audio working correctly broke the audio
on the Compro VideoMate H900 cards. This is now fixed.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-04 22:27:16 -03:00
Rafael J. Wysocki
76acae04c8 ACPI: Make /proc/acpi/wakeup interface handle PCI devices (again)
Make the ACPI /proc/acpi/wakeup interface set the appropriate wake-up bits
of physical devices corresponding to the ACPI devices and make those bits
be set initially for devices that are enabled to wake up by default.  This
is needed to restore the 2.6.26 and earlier behavior for the PCI devices
that were previously handled correctly with the help of the
/proc/acpi/wakeup interface.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-03 18:22:19 -07:00
Sven Wegener
95bf14bff5 leds-pca955x: add proper error handling and fix bogus memory handling
Check the return value of led_classdev_register and unregister all
registered devices, if registering one device fails.  Also the dynamic
memory handling is totally bogus.  You can't allocate multiple chunks via
kzalloc() and expect them to be in order later.  I wonder how this ever
worked.

Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Acked-by: Nate Case <ncase@xes-inc.com>
Tested-by: Nate Case <ncase@xes-inc.com>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-03 18:22:18 -07:00
Sven Wegener
07f696c777 leds-fsg: change order of initialization and deinitialization
On initialization, we first do the ioremap and then register the led devices.
On deinitialization, we do it in reverse order. This prevents someone calling
into the brightness_set functions with an invalid latch_address.

Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Acked-by: Rod Whitby <rod@whitby.id.au>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-03 18:22:18 -07:00
Haavard Skinnemoen
7fe7b2f4ec dw_dmac: fix copy/paste bug in tasklet
The tasklet checks RAW.BLOCK twice, and does not check RAW.XFER. This is
obviously wrong, and could theoretically cause the driver to hang.

Reported-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-03 18:22:18 -07:00
Lennert Buytenhek
f2fe1638f6 orion_spi: fix handling of default transfer speed
Accept zero (the default!) as a per-transfer clock speed override.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-03 18:22:18 -07:00
Krzysztof Helt
aef7db4bd5 fbdev: fix recursive notifier and locking when fbdev console is blanked
Fix infinite recursive notifier in the fbdev layer.  This causes recursive
locking.  Dmitry Baryshkov found the problem and confirmed that the patch
fixes the bug.

After doing
# echo 1 > /sys/class/graphics/fb0/blank
I got the following in my kernel log:

=============================================
[ INFO: possible recursive locking detected ]
2.6.27-rc6-00086-gda63874-dirty #97
---------------------------------------------
echo/1564 is trying to acquire lock:
 ((fb_notifier_list).rwsem){..--}, at: [<c005a384>] __blocking_notifier_call_chain+0x38/0x6c

but task is already holding lock:
 ((fb_notifier_list).rwsem){..--}, at: [<c005a384>] __blocking_notifier_call_chain+0x38/0x6c

other info that might help us debug this:
2 locks held by echo/1564:
 #0:  (&buffer->mutex){--..}, at: [<c00ddde0>] sysfs_write_file+0x30/0x80
 #1:  ((fb_notifier_list).rwsem){..--}, at: [<c005a384>] __blocking_notifier_call_chain+0x38/0x6c

stack backtrace:
[<c0029fe4>] (dump_stack+0x0/0x14) from [<c0060ce0>] (print_deadlock_bug+0xa4/0xd0)
[<c0060c3c>] (print_deadlock_bug+0x0/0xd0) from [<c0060e54>] (check_deadlock+0x148/0x17c)
 r6:c397a1e0 r5:c397a530 r4:c04fcf98
[<c0060d0c>] (check_deadlock+0x0/0x17c) from [<c00637e8>] (validate_chain+0x3c4/0x4f0)
[<c0063424>] (validate_chain+0x0/0x4f0) from [<c0063efc>] (__lock_acquire+0x5e8/0x6b4)
[<c0063914>] (__lock_acquire+0x0/0x6b4) from [<c006402c>] (lock_acquire+0x64/0x78)
[<c0063fc8>] (lock_acquire+0x0/0x78) from [<c0316ca8>] (down_read+0x4c/0x60)
 r7:00000009 r6:ffffffff r5:c0427a40 r4:c005a384
[<c0316c5c>] (down_read+0x0/0x60) from [<c005a384>] (__blocking_notifier_call_chain+0x38/0x6c)
 r5:c0427a40 r4:c0427a74
[<c005a34c>] (__blocking_notifier_call_chain+0x0/0x6c) from [<c005a3d8>] (blocking_notifier_call_chain+0x20/0x28)
 r8:00000009 r7:c086d640 r6:c3967940 r5:00000000 r4:c38984b8
[<c005a3b8>] (blocking_notifier_call_chain+0x0/0x28) from [<c014baa0>] (fb_notifier_call_chain+0x1c/0x24)
[<c014ba84>] (fb_notifier_call_chain+0x0/0x24) from [<c014c18c>] (fb_blank+0x64/0x70)
[<c014c128>] (fb_blank+0x0/0x70) from [<c0155978>] (fbcon_blank+0x114/0x1bc)
 r5:00000001 r4:c38984b8
[<c0155864>] (fbcon_blank+0x0/0x1bc) from [<c0170ea8>] (do_blank_screen+0x1e0/0x2a0)
[<c0170cc8>] (do_blank_screen+0x0/0x2a0) from [<c0154024>] (fbcon_fb_blanked+0x74/0x94)
 r5:c3967940 r4:00000001
[<c0153fb0>] (fbcon_fb_blanked+0x0/0x94) from [<c0154228>] (fbcon_event_notify+0x100/0x12c)
 r5:fffffffe r4:c39bc194
[<c0154128>] (fbcon_event_notify+0x0/0x12c) from [<c005a0d4>] (notifier_call_chain+0x38/0x7c)
[<c005a09c>] (notifier_call_chain+0x0/0x7c) from [<c005a3a0>] (__blocking_notifier_call_chain+0x54/0x6c)
 r8:c3b51ea0 r7:00000009 r6:ffffffff r5:c0427a40 r4:c0427a74
[<c005a34c>] (__blocking_notifier_call_chain+0x0/0x6c) from [<c005a3d8>] (blocking_notifier_call_chain+0x20/0x28)
 r8:00000001 r7:c3a7e000 r6:00000000 r5:00000000 r4:c38984b8
[<c005a3b8>] (blocking_notifier_call_chain+0x0/0x28) from [<c014baa0>] (fb_notifier_call_chain+0x1c/0x24)
[<c014ba84>] (fb_notifier_call_chain+0x0/0x24) from [<c014c18c>] (fb_blank+0x64/0x70)
[<c014c128>] (fb_blank+0x0/0x70) from [<c014e450>] (store_blank+0x54/0x7c)
 r5:c38984b8 r4:c3b51ec4
[<c014e3fc>] (store_blank+0x0/0x7c) from [<c017981c>] (dev_attr_store+0x28/0x2c)
 r8:00000001 r7:c042bf80 r6:c39eba10 r5:c3967c30 r4:c38e0140
[<c01797f4>] (dev_attr_store+0x0/0x2c) from [<c00ddaac>] (flush_write_buffer+0x54/0x68)
[<c00dda58>] (flush_write_buffer+0x0/0x68) from [<c00dde08>] (sysfs_write_file+0x58/0x80)
 r8:c3b51f78 r7:c3bcb070 r6:c39eba10 r5:00000001 r4:00000001
[<c00dddb0>] (sysfs_write_file+0x0/0x80) from [<c009de04>] (vfs_write+0xb8/0x148)
[<c009dd4c>] (vfs_write+0x0/0x148) from [<c009e384>] (sys_write+0x44/0x70)
 r7:00000004 r6:c3bcb070 r5:00000000 r4:00000000
[<c009e340>] (sys_write+0x0/0x70) from [<c0025d00>] (ret_fast_syscall+0x0/0x2c)
 r6:4001b000 r5:00000001 r4:401dc658

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reported-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Testted-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-03 18:22:17 -07:00
Marcin Slusarz
2e4a75cdcb rtc: fix kernel panic on second use of SIGIO nofitication
When userspace uses SIGIO notification and forgets to disable it before
closing file descriptor, rtc->async_queue contains stale pointer to struct
file.  When user space enables again SIGIO notification in different
process, kernel dereferences this (poisoned) pointer and crashes.

So disable SIGIO notification on close.

Kernel panic:
(second run of qemu (requires echo 1024 > /sys/class/rtc/rtc0/max_user_freq))

general protection fault: 0000 [1] PREEMPT
CPU 0
Modules linked in: af_packet snd_pcm_oss snd_mixer_oss snd_seq_oss snd_seq_midi_event snd_seq usbhid tuner tea5767 tda8290 tuner_xc2028 xc5000 tda9887 tuner_simple tuner_types mt20xx tea5761 tda9875 uhci_hcd ehci_hcd usbcore bttv snd_via82xx snd_ac97_codec ac97_bus snd_pcm snd_timer ir_common compat_ioctl32 snd_page_alloc videodev v4l1_compat snd_mpu401_uart snd_rawmidi v4l2_common videobuf_dma_sg videobuf_core snd_seq_device snd btcx_risc soundcore tveeprom i2c_viapro
Pid: 5781, comm: qemu-system-x86 Not tainted 2.6.27-rc6 #363
RIP: 0010:[<ffffffff8024f891>]  [<ffffffff8024f891>] __lock_acquire+0x3db/0x73f
RSP: 0000:ffffffff80674cb8  EFLAGS: 00010002
RAX: ffff8800224c62f0 RBX: 0000000000000046 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8800224c62f0
RBP: ffffffff80674d08 R08: 0000000000000002 R09: 0000000000000001
R10: ffffffff80238941 R11: 0000000000000001 R12: 0000000000000000
R13: 6b6b6b6b6b6b6b6b R14: ffff88003a450080 R15: 0000000000000000
FS:  00007f98b69516f0(0000) GS:ffffffff80623200(0000) knlGS:00000000f7cc86d0
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000a87000 CR3: 0000000022598000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process qemu-system-x86 (pid: 5781, threadinfo ffff880028812000, task ffff88003a450080)
Stack:  ffffffff80674cf8 0000000180238440 0000000200000002 0000000000000000
 ffff8800224c62f0 0000000000000046 0000000000000000 0000000000000002
 0000000000000002 0000000000000000 ffffffff80674d68 ffffffff8024fc7a
Call Trace:
 <IRQ>  [<ffffffff8024fc7a>] lock_acquire+0x85/0xa9
 [<ffffffff8029cb62>] ? send_sigio+0x2a/0x184
 [<ffffffff80491d1f>] _read_lock+0x3e/0x4a
 [<ffffffff8029cb62>] ? send_sigio+0x2a/0x184
 [<ffffffff8029cb62>] send_sigio+0x2a/0x184
 [<ffffffff8024fb97>] ? __lock_acquire+0x6e1/0x73f
 [<ffffffff8029cd4d>] ? kill_fasync+0x2c/0x4e
 [<ffffffff8029cd10>] __kill_fasync+0x54/0x65
 [<ffffffff8029cd5b>] kill_fasync+0x3a/0x4e
 [<ffffffff80402896>] rtc_update_irq+0x9c/0xa5
 [<ffffffff80404640>] cmos_interrupt+0xae/0xc0
 [<ffffffff8025d1c1>] handle_IRQ_event+0x25/0x5a
 [<ffffffff8025e5e4>] handle_edge_irq+0xdd/0x123
 [<ffffffff8020da34>] do_IRQ+0xe4/0x144
 [<ffffffff8020bad6>] ret_from_intr+0x0/0xf
 <EOI>  [<ffffffff8026fdc2>] ? __alloc_pages_internal+0xe7/0x3ad
 [<ffffffff8033fe67>] ? clear_page_c+0x7/0x10
 [<ffffffff8026fc10>] ? get_page_from_freelist+0x385/0x450
 [<ffffffff8026fdc2>] ? __alloc_pages_internal+0xe7/0x3ad
 [<ffffffff80280aac>] ? anon_vma_prepare+0x2e/0xf6
 [<ffffffff80279400>] ? handle_mm_fault+0x227/0x6a5
 [<ffffffff80494716>] ? do_page_fault+0x494/0x83f
 [<ffffffff8049251d>] ? error_exit+0x0/0xa9

Code: cc 41 39 45 28 74 24 e8 5e 1d 0f 00 85 c0 0f 84 6a 03 00 00 83 3d 8f a9 aa 00 00 be 47 03 00 00 0f 84 6a 02 00 00 e9 53 03 00 00 <41> ff 85 38 01 00 00 45 8b be 90 06 00 00 41 83 ff 2f 76 24 e8
RIP  [<ffffffff8024f891>] __lock_acquire+0x3db/0x73f
 RSP <ffffffff80674cb8>
---[ end trace 431877d860448760 ]---
Kernel panic - not syncing: Aiee, killing interrupt handler!

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Alessandro Zummo <alessandro.zummo@towertech.it>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-03 18:22:17 -07:00
Jan Glauber
75f6276187 [S390] qdio: prevent stack clobber
Don't print more information than fits into the string on the
stack. Combine the informational output of qdio to fit into
one line.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-10-03 21:55:55 +02:00
Bob Sharp
7191a0a182 RDMA/nes: Fix routed RDMA connections
Fix routed RDMA connections to destinations where the next hop is not
the final destination.  Use neigh_*() to properly locate neighbor.

Signed-off-by: Bob Sharp <bsharp@neteffect.com>
Signed-off-by: Sweta Bhatt <sweta.bhatt@einfochips.com>
Signed-off-by: Chien Tung <ctung@neteffect.com>
2008-10-03 12:21:19 -07:00
Vadim Makhervaks
7e36d3d732 RDMA/nes: Enhanced PFT management scheme
Change management of perfect filter table to allow enhanced
performance applications.

Signed-off-by: Vadim Makhervaks <vmakhervaks@neteffect.com>
Signed-off-by: Sweta Bhatt <sweta.bhatt@einfochips.com>
Signed-off-by: Chien Tung <ctung@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-10-03 12:21:18 -07:00
Swen Schillig
41bfcf9010 [SCSI] zfcp: fix double dbf id usage
Trace ids 107 and 3 are used twice, fix this to have unique ids for
the erp triggers.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:56 -05:00
Swen Schillig
091694a556 [SCSI] zfcp: wait on SCSI work to be finished before proceeding with init dev
Due to the character of a scheduled work we cannot guarantee the
LUN register to be finished before an initial device tries to use it.
Therefor we have to wait for PENDING_SCSI_WORK flag to be cleared
before proceeding.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:56 -05:00
Swen Schillig
9fb3cd86e4 [SCSI] zfcp: fix erp list usage without using locks
The zfcp_erp_thread was using the nolock version of the dbf function.
This resulted in a list access while other tasks could modifying the
list. The symptom was an erp thread running at 100% CPU and never
returning from the dbf function.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:56 -05:00
Swen Schillig
e4e9ba5d93 [SCSI] zfcp: prevent fc_remote_port_delete calls for unregistered rport
In case of an adapter reopen all rports have to be deleted from the
environment. This should only happen for already registered rports
otherwise fc_remote_port_delete is called with a NULL pointer.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:55 -05:00
Swen Schillig
b7f15f3c94 [SCSI] zfcp: fix deadlock caused by shared work queue tasks
Each adapter reopen trigger automatically a scan_port task which
is waiting for the ERP to be finished before further processing.
Since the initial device setup enqueues adapter, port and LUN which
are individual ERP actions, this process would start after
everything is done. Unfortunately the port_reopen requires another
scheduled work to be finished which is queued after the automatic
scan_port -> deadlock !

This fix creates an own work queue for ERP based nameserver requests.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:55 -05:00
Swen Schillig
5706938669 [SCSI] zfcp: put threshold data in hba trace
Now that we removed the long messages for the bit error threshold
data, put the data in the hba trace. This way, we get a short warning
for the threshold event from the hardware and have the data in the
trace for further analysis.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:55 -05:00
Christof Schmitt
0406289ed5 [SCSI] zfcp: Simplify zfcp data structures
Reduce the size of zfcp data structures by removing unused and
redundant members. scsi_lun is only the mangled version of the
fcp_lun. So, remove the redundant field and use the fcp_lun instead.

Since the queue lock and the pci_batch indicator are only used in the
request queue, move them from the common queue struct to the adapter
struct.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:54 -05:00
Swen Schillig
a1b449de5d [SCSI] zfcp: Simplify get_adapter_by_busid
Call the helper function from cio instead looping through all zfcp
adapters.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:53 -05:00
Swen Schillig
7ba58c9cc1 [SCSI] zfcp: remove all typedefs and replace them with standards
Remove typedefs from zfcp, use already existing types instead.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:53 -05:00
Swen Schillig
5ab944f97e [SCSI] zfcp: attach and release SAN nameserver port on demand
Changing the zfcp behaviour from always having the nameserver port
open to an on-demand strategy.  This strategy reduces the use of
limited resources like port connections. The patch provides a common
infrastructure which could be used for all WKA ports in future.

Also reduce the number of nameserver lookups by changing the zfcp
behaviour of always querying the nameserver for the corresponding
destination ID of the remote port.  If the destination ID has changed
during the reopen process we will be informed and then trigger a
nameserver query on demand.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:53 -05:00
Swen Schillig
44cc76f2d1 [SCSI] zfcp: remove unused references, declarations and flags
- Remove unused references and declarations, including one instance
   of the FC ls_adisc struct that has been defined twice.
 - Also remove the flags COMMON_OPENING, COMMON_CLOSING,
   ADAPTER_REGISTERED and XPORT_OK that are only set and cleared, but
   not checked anywhere.
 - Remove the zfcp specific atomic_test_mask makro. Simply use
   atomic_read directly instead.
 - Remove the zfcp internal sg helper functions and switch the places
   where it is still used to call sg_virt directly.
 - With the update of the QDIO code, the QDIO data structures no
   longer use the volatile type qualifier. Now we can also remove the
   volatile qualifiers from the zfcp code.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:52 -05:00
Christof Schmitt
ff3b24fa53 [SCSI] zfcp: Update message with input from review
Update the kernel messages in zfcp with input from the message review
and remove some messages that have been identified as redundant.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:52 -05:00
Stefan Raspl
2450d3e7b8 [SCSI] zfcp: add queue_full sysfs attribute
Adds a new sysfs attribute queue_full for adapters that records the number
of incidents where a requests could not be submitted due to insufficient
free space on the request queue.

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:52 -05:00
James Bottomley
7ae628d9d2 [SCSI] scsi_dh: suppress comparison warning
On Mon, 2008-09-22 at 14:56 -0700, akpm@linux-foundation.org wrote:
> From: Andrew Morton <akpm@linux-foundation.org>
>
> s390:
>
> drivers/scsi/device_handler/scsi_dh_emc.c: In function 'parse_sp_info_reply':
> drivers/scsi/device_handler/scsi_dh_emc.c:179: warning: comparison is always false due to limited range of data type
>
> because chars are unsigned, I assume.

Fix by making csdev->buffer explicitly an unsigned char and dropping
the < 0 test.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:51 -05:00
Yanqing_Liu@Dell.com
650849d71c [SCSI] scsi_dh: add Dell product information into rdac device handler
Add Dell Powervault storage arrays into device list of rdac device
handler.

Signed-off-by: Yanqing Liu <yanqing_liu@dell.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:51 -05:00
Adrian Bunk
b78ded8915 [SCSI] qla2xxx: remove the unused SCSI_QLOGIC_FC_FIRMWARE option
This option was forgotten when the SCSI_QLOGIC_FC driver was removed.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 12:11:51 -05:00
Alexander Beregalov
4a3e1ea8b2 [SCSI] qla2xxx: fix printk format warnings
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 11:46:19 -05:00
Andrew Vasquez
36d1cdcffb [SCSI] qla2xxx: Update version number to 8.02.01-k8.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 11:46:19 -05:00
Ravi Anand
59d72d873c [SCSI] qla2xxx: Ignore payload reserved-bits during RSCN processing.
As the driver is only interested in bits 0-9 of the 1st
RSCN-payload word:

	rsvd[15:14]RscnEventQualifier[13:10]Fmt[9:8]Domain[7:0]
	Area[15:8]Alpa[7:0]

Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 11:46:19 -05:00
Andrew Vasquez
2d13693879 [SCSI] qla2xxx: Additional residual-count corrections during UNDERRUN handling.
Add additional tightening of residual-count handling (originally
from commit 6acf819002) where the
driver should discard any lower SCSI-status during
firmware/transport residual-count mismatches.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 11:46:18 -05:00
Bjorn Helgaas
cc3ef7bc40 [SCSI] qla2xxx: Fix "occured" spelling errors.
Fix "occured" spelling errors.  Most of these are in comments, which
I wouldn't normally bother with, but a couple are in printks, which
irritate me more.  So I just fixed them all at the same time.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-03 11:46:18 -05:00