Jens Axboe [Fri, 29 Oct 2010 17:31:42 +0000 (11:31 -0600)]
block: take care not to overflow when calculating total iov length
commit
9f864c80913467312c7b8690e41fb5ebd1b50e92 upstream.
Reported-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jens Axboe [Fri, 29 Oct 2010 17:46:56 +0000 (11:46 -0600)]
block: limit vec count in bio_kmalloc() and bio_alloc_map_data()
commit
f3f63c1c28bc861a931fac283b5bc3585efb8967 upstream.
Reported-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jan Kara [Thu, 16 Sep 2010 18:36:36 +0000 (20:36 +0200)]
block: Fix race during disk initialization
commit
01ea50638bc04ca5259f5711fcdedefcdde1cf43 upstream.
When a new disk is being discovered, add_disk() first ties the bdev to gendisk
(via register_disk()->blkdev_get()) and only after that calls
bdi_register_bdev(). Because register_disk() also creates disk's kobject, it
can happen that userspace manages to open and modify the device's data (or
inode) before its BDI is properly initialized leading to a warning in
__mark_inode_dirty().
Fix the problem by registering BDI early enough.
This patch addresses https://bugzilla.kernel.org/show_bug.cgi?id=16312
Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Martin K. Petersen [Wed, 13 Oct 2010 19:18:03 +0000 (21:18 +0200)]
block: Ensure physical block size is unsigned int
commit
892b6f90db81cccb723d5d92f4fddc2d68b206e1 upstream.
Physical block size was declared unsigned int to accomodate the maximum
size reported by READ CAPACITY(16). Make sure we use the right type in
the related functions.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Mon, 22 Nov 2010 19:03:49 +0000 (11:03 -0800)]
Linux 2.6.36.1
Robin Holt [Tue, 26 Oct 2010 21:21:15 +0000 (14:21 -0700)]
sgi-xp: incoming XPC channel messages can come in after the channel's partition structures have been torn down
commit
09358972bff5ce99de496bbba97c85d417b3c054 upstream.
Under some workloads, some channel messages have been observed being
delayed on the sending side past the point where the receiving side has
been able to tear down its partition structures.
This condition is already detected in xpc_handle_activate_IRQ_uv(), but
that information is not given to xpc_handle_activate_mq_msg_uv(). As a
result, xpc_handle_activate_mq_msg_uv() assumes the structures still exist
and references them, causing a NULL-pointer deref.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mac Lin [Sun, 14 Nov 2010 22:17:23 +0000 (22:17 +0000)]
ARM: cns3xxx: Fixup the missing second parameter to addruart macro to allow them to build.
It can't be merged into Linus' tree because this file has already been
changed in incompatible ways.
Fixup the missing second parameter to addruart macro to allow them to build,
according to to commit
0e17226f7cd289504724466f4298abc9bdfca3fe.
Enabling DEBUG in head.S would cause:
rch/arm/boot/compressed/head.S: Assembler messages:
arch/arm/boot/compressed/head.S:1037: Error: too many positional arguments
arch/arm/boot/compressed/head.S:1055: Error: too many positional arguments
Signed-off-by: Mac Lin <mkl0301@gmail.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Rabin Vincent [Tue, 26 Oct 2010 17:49:00 +0000 (12:49 -0500)]
kgdb,arm: fix register dump
commit
834b2964b7ab047610da038e42d61dc8dac6339a upstream.
DBG_MAX_REG_NUM incorrectly had the number of indices in the GDB regs
array rather than the number of registers, leading to an oops when the
"rd" command is used in KDB.
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Eric Paris [Tue, 12 Oct 2010 15:40:08 +0000 (11:40 -0400)]
secmark: do not return early if there was no error
commit
15714f7b58011cf3948cab2988abea560240c74f upstream.
Commit
4a5a5c73 attempted to pass decent error messages back to userspace for
netfilter errors. In xt_SECMARK.c however the patch screwed up and returned
on 0 (aka no error) early and didn't finish setting up secmark. This results
in a kernel BUG if you use SECMARK.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Steve Dickson [Thu, 28 Oct 2010 12:17:54 +0000 (08:17 -0400)]
Fixed Regression in NFS Direct I/O path
commit
568a810d7edd58bd505222dd1c7e48895532290b upstream.
A typo, introduced by commit
f11ac8db, in the nfs_direct_write()
routine causes writes with O_DIRECT set to fail with a ENOMEM error.
Found-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Christie [Wed, 6 Oct 2010 08:10:59 +0000 (03:10 -0500)]
Fix regressions in scsi_internal_device_block
commit
986fe6c7f50974e871b8ab5a800f5310ea25b361 upstream.
Deleting a SCSI device on a blocked fc_remote_port (before
fast_io_fail_tmo fires) results in a hanging thread:
STACK:
0 schedule+1108 [0x5cac48]
1 schedule_timeout+528 [0x5cb7fc]
2 wait_for_common+266 [0x5ca6be]
3 blk_execute_rq+160 [0x354054]
4 scsi_execute+324 [0x3b7ef4]
5 scsi_execute_req+162 [0x3b80ca]
6 sd_sync_cache+138 [0x3cf662]
7 sd_shutdown+138 [0x3cf91a]
8 sd_remove+112 [0x3cfe4c]
9 __device_release_driver+124 [0x3a08b8]
10 device_release_driver+60 [0x3a0a5c]
11 bus_remove_device+266 [0x39fa76]
12 device_del+340 [0x39d818]
13 __scsi_remove_device+204 [0x3bcc48]
14 scsi_remove_device+66 [0x3bcc8e]
15 sysfs_schedule_callback_work+50 [0x260d66]
16 worker_thread+622 [0x162326]
17 kthread+160 [0x1680b0]
18 kernel_thread_starter+6 [0x10aaea]
During the delete, the SCSI device is in moved to SDEV_CANCEL. When
the FC transport class later calls scsi_target_unblock, this has no
effect, since scsi_internal_device_unblock ignores SCSI devics in this
state.
It looks like all these are regressions caused by:
5c10e63c943b4c67561ddc6bf61e01d4141f881f
[SCSI] limit state transitions in scsi_internal_device_unblock
Fix by rejecting offline and cancel in the state transition.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
[jejb: Original patch by Christof Schmitt, modified by Mike Christie]
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Christof Schmitt [Wed, 6 Oct 2010 11:19:44 +0000 (13:19 +0200)]
Fix race when removing SCSI devices
commit
546ae796bfac6399e30da4b5af2cf7a6d0f8a4ec upstream.
Removing SCSI devices through
echo 1 > /sys/bus/scsi/devices/ ... /delete
while the FC transport class removes the SCSI target can lead to an
oops:
Unable to handle kernel pointer dereference at virtual kernel address
00000000b6815000
Oops: 0011 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Modules linked in: sunrpc qeth_l3 binfmt_misc dm_multipath scsi_dh dm_mod ipv6 qeth ccwgroup [last unloaded: scsi_wait_scan]
CPU: 1 Not tainted 2.6.35.5-45.x.
20100924-s390xdefault #1
Process fc_wq_0 (pid: 861, task:
00000000b7331240, ksp:
00000000b735bac0)
Krnl PSW :
0704200180000000 00000000003ff6e4 (__scsi_remove_device+0x24/0xd0)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3
Krnl GPRS:
0000000000000001 0000000000000000 00000000b6815000 00000000bc24a8c0
00000000003ff7c8 000000000056dbb8 0000000000000002 0000000000835d80
ffffffff00000000 0000000000001000 00000000b6815000 00000000bc24a7f0
00000000b68151a0 00000000b6815000 00000000b735bc20 00000000b735bbf8
Krnl Code:
00000000003ff6d6:
a7840001 brc 8,3ff6d8
00000000003ff6da:
a7fbffd8 aghi %r15,-40
00000000003ff6de:
e3e0f0980024 stg %r14,152(%r15)
>
00000000003ff6e4:
e31021200004 lg %r1,288(%r2)
00000000003ff6ea:
a71f0000 cghi %r1,0
00000000003ff6ee:
a7a40011 brc 10,3ff710
00000000003ff6f2:
a7390003 lghi %r3,3
00000000003ff6f6:
c0e5ffffc8b1 brasl %r14,3f8858
Call Trace:
([<
0000000000001000>] 0x1000)
[<
00000000003ff7d2>] scsi_remove_device+0x42/0x54
[<
00000000003ff8ba>] __scsi_remove_target+0xca/0xfc
[<
00000000003ff99a>] __remove_child+0x3a/0x48
[<
00000000003e3246>] device_for_each_child+0x72/0xbc
[<
00000000003ff93a>] scsi_remove_target+0x4e/0x74
[<
0000000000406586>] fc_rport_final_delete+0xb2/0x23c
[<
000000000015d080>] worker_thread+0x200/0x344
[<
000000000016330c>] kthread+0xa0/0xa8
[<
0000000000106c1a>] kernel_thread_starter+0x6/0xc
[<
0000000000106c14>] kernel_thread_starter+0x0/0xc
INFO: lockdep is turned off.
Last Breaking-Event-Address:
[<
00000000003ff7cc>] scsi_remove_device+0x3c/0x54
The function __scsi_remove_target iterates through the SCSI devices on
the host, but it drops the host_lock before calling
scsi_remove_device. When the SCSI device is deleted from another
thread, the pointer to the SCSI device in scsi_remove_device can
become invalid. Fix this by getting a reference to the SCSI device
before dropping the host_lock to keep the SCSI device alive for the
call to scsi_remove_device.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Carpenter [Fri, 8 Oct 2010 07:03:07 +0000 (09:03 +0200)]
gdth: integer overflow in ioctl
commit
f63ae56e4e97fb12053590e41a4fa59e7daa74a4 upstream.
gdth_ioctl_alloc() takes the size variable as an int.
copy_from_user() takes the size variable as an unsigned long.
gen.data_len and gen.sense_len are unsigned longs.
On x86_64 longs are 64 bit and ints are 32 bit.
We could pass in a very large number and the allocation would truncate
the size to 32 bits and allocate a small buffer. Then when we do the
copy_from_user(), it would result in a memory corruption.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anil Ravindranath [Mon, 25 Oct 2010 22:41:54 +0000 (15:41 -0700)]
pmcraid: remove duplicate struct member
commit
df30e5059681ed0671c9cc6ff702fe9ca7f20042 upstream.
sense_buffer is both a direct member of struct pmcraid_cmd as well as
an indirect one via an anonymous union and struct. Fix this clash by
eliminating the direct member in favour of the anonymous struct/union
one. The name duplication apparently isn't noticed by gcc versions
earlier than 4.4
Reported-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Tue, 14 Sep 2010 12:12:54 +0000 (14:12 +0200)]
qla4xxx: fix build on PPC
commit
a6751ccb9ba85180c84135cc921eea11d83d5689 upstream.
We use read/write[bslq] but do not include linux/io.h. This causes
build failures on PPC. Include that file.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Milburn [Fri, 3 Sep 2010 22:13:03 +0000 (17:13 -0500)]
libsas: fix NCQ mixing with non-NCQ
commit
f0ad30d3d2dc924decc0e10b1ff6dc32525a5d99 upstream.
Some cards (like mvsas) have issue troubles if non-NCQ commands are
mixed with NCQ ones. Fix this by using the libata default NCQ check
routine which waits until all NCQ commands are complete before issuing
a non-NCQ one. The impact to cards (like aic94xx) which don't need
this logic should be minimal
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michael Reed [Mon, 20 Sep 2010 16:20:22 +0000 (11:20 -0500)]
sd name space exhaustion causes system hang
commit
1a03ae0f556a931aa3747b70e44b78308f5b0590 upstream.
Following a site power outage which re-enabled all the ports on my FC
switches, my system subsequently booted with far too many luns! I had
let it run hoping it would make multi-user. It didn't. :( It hung solid
after exhausting the last sd device, sdzzz, and attempting to create sdaaaa
and beyond. I was unable to get a dump.
Discovered using a 2.6.32.13 based system.
correct this by detecting when the last index is utilized and failing
the sd probe of the device. Patch applies to scsi-misc-2.6.
Signed-off-by: Michael Reed <mdr@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Corentin Chary [Tue, 24 Aug 2010 07:30:46 +0000 (09:30 +0200)]
asus-laptop: fix gps rfkill
commit
23f45c3a76e715217f40ac397c15815c774cad7f upstream.
The GPS rfkill crappy code. The ops_data argument wasn't
set, and was totally misused. The fix have been tested
on an Asus R2H.
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Thu, 14 Oct 2010 19:25:21 +0000 (15:25 -0400)]
USB: accept some invalid ep0-maxpacket values
commit
56626a72a47bf3e50875d960d6b5f17b9bee0ab2 upstream.
A few devices (such as the RCA VR5220 voice recorder) are so
non-compliant with the USB spec that they have invalid maxpacket sizes
for endpoint 0. Nevertheless, as long as we can safely use them, we
may as well do so.
This patch (as1432) softens our acceptance criterion by allowing
high-speed devices to have ep0-maxpacket sizes other than 64. A
warning is printed in the system log when this happens, and the
existing error message is clarified.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: James <bjlockie@lockie.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nobuhiro Iwamatsu [Thu, 14 Oct 2010 05:52:54 +0000 (14:52 +0900)]
usb: r8a66597-hcd: Change mistake of the outsw function
commit
ac9dfe9cdda4eb42ecaa9f13b0fee518e0b6518e upstream.
Some functions changed by
1c98347e613bf17ea2f18c9766ce0ab77f65a96d.
However, There was a change mistake of the function (outsw).
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Paul Mundt <lethal@linux-sh.org>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alon Ziv [Sun, 10 Oct 2010 06:32:18 +0000 (08:32 +0200)]
USB: opticon: Fix long-standing bugs in opticon driver
commit
97cd8dc4ca9a1a5efb2cc38758e01492e3b013e2 upstream.
The bulk-read callback had two bugs:
a) The bulk-in packet's leading two zeros were returned (and the two last
bytes truncated)
b) The wrong URB was transmitted for the second (and later) read requests,
causing further reads to return the entire packet (including leading
zeros)
Signed-off-by: Alon Ziv <alon-git@nolaviz.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johan Hovold [Mon, 11 Oct 2010 23:07:05 +0000 (01:07 +0200)]
USB: visor: fix initialisation of UX50/TH55 devices
commit
cfb8da8f69b81d367b766888e83ec0483a31bf01 upstream.
Fix regression introduced by commit
214916f2ec6701e1c9972f26c60b3dc37d3153c6 (USB: visor: reimplement using
generic framework) which broke initialisation of UX50/TH55 devices that
used re-mapped bulk-out endpoint addresses.
Reported-by: Robert Gadsdon <rgadsdon@bayarea.net>
Tested-by: Robert Gadsdon <rgadsdon@bayarea.net>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Thu, 30 Sep 2010 19:16:23 +0000 (15:16 -0400)]
USB: disable endpoints after unbinding interfaces, not before
commit
80f0cf3947889014d3a3dc0ad60fb87cfda4b12a upstream.
This patch (as1430) fixes a bug in usbcore. When a device
configuration change occurs or a device is removed, the endpoints for
the old config should be completely disabled. However it turns out
they aren't; this is because usb_unbind_interface() calls
usb_enable_interface() or usb_set_interface() to put interfaces back
in altsetting 0, which re-enables the interfaces' endpoints.
As a result, when a device goes through a config change or is
unconfigured, the ep_in[] and ep_out[] arrays may be left holding old
pointers to usb_host_endpoint structures. If the device is
deauthorized these structures get freed, and the stale pointers cause
errors when the the device is eventually unplugged.
The solution is to disable the endpoints after unbinding the
interfaces instead of before. This isn't as large a change as it
sounds, since usb_unbind_interface() disables all the interface's
endpoints anyway before calling the driver's disconnect routine,
unless the driver claims to support "soft" unbind.
This fixes Bugzilla #19192. Thanks to "Tom" Lei Ming for diagnosing
the underlying cause of the problem.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Carsten Sommer <carsten_sommer@ymail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jean-Christophe PLAGNIOL-VILLARD [Mon, 20 Sep 2010 16:31:07 +0000 (18:31 +0200)]
USB: atmel_usba_udc: force vbus_pin at -EINVAL when gpio_request failled
commit
969affff54702785330de553b790372e261e93f9 upstream.
to ensure gpio_is_valid return false
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Anders Larsen [Wed, 6 Oct 2010 21:46:25 +0000 (23:46 +0200)]
USB: cp210x: Add WAGO 750-923 Service Cable device ID
commit
93ad03d60b5b18897030038234aa2ebae8234748 upstream.
The WAGO 750-923 USB Service Cable is used for configuration and firmware
updates of several industrial automation products from WAGO Kontakttechnik GmbH.
Bus 004 Device 002: ID 1be3:07a6
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1be3
idProduct 0x07a6
bcdDevice 1.00
iManufacturer 1 Silicon Labs
iProduct 2 WAGO USB Service Cable
iSerial 3
1277796751
. . .
Signed-off-by: Anders Larsen <al@alarsen.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
DJ Delorie [Fri, 17 Sep 2010 15:09:06 +0000 (11:09 -0400)]
USB: cp210x: Add Renesas RX-Stick device ID
commit
2f1136d1d08a63dcdbcd462621373f30d8dfe590 upstream.
RX610 development board by Renesas
Bus 001 Device 024: ID 045b:0053 Hitachi, Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x045b Hitachi, Ltd
idProduct 0x0053
bcdDevice 1.00
iManufacturer 1 Silicon Labs
iProduct 2 RX-Stick
iSerial 3 0001
. . .
http://am.renesas.com/rx610stick
Signed-off-by: DJ Delorie <dj@delorie.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mauro Carvalho Chehab [Sun, 12 Sep 2010 14:41:50 +0000 (11:41 -0300)]
USB: option: Add more ZTE modem USB id's
commit
ecfa153ef616b901e86d9a051b329fcda7a6ce7b upstream.
There are lots of ZTE USB id's currently not covered by usb/serial. Adds them,
to allow those devices to work properly on Linux.
While here, put the USB ID's for 0x2002/0x2003 at the sorted order.
This patch is based on zte.c file found on MF645.
PS.: The ZTE driver is commenting the USB ID for 0x0053. It also adds, commented,
an USB ID for 0x0026.
Not sure why, but I think that 0053 is used by their devices in storage mode only.
So, I opted to keep the comment on this patch.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Praveena Nadahally [Fri, 10 Sep 2010 17:35:03 +0000 (23:05 +0530)]
USB: Change acm_iad_descriptor bFunctionProtocol to USB_CDC_ACM_PROTO_AT_V25TER
commit
5c8db070b4480c43394680d9dfd2ddb06b97d2ae upstream.
The protocol code is set 00 in IAD and it's set to 01 in ACM control
interface descriptor in f_acm.c file. Due to this, windows is unable to
install the modem(ACM) driver based on class-subclass-protocol matching.
This patch corrects the protocol code in ACM IAD to the same as in
acm_control_interface_desc protocol code.
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Shtylyov [Wed, 29 Sep 2010 06:54:31 +0000 (09:54 +0300)]
usb: musb: blackfin: call gpio_free() on error path in musb_platform_init()
commit
00be545e49d83485d49a598d3b7e090088934be8 upstream.
Blackfin's musb_platform_init() needs to call gpio_free() for error cleanup iff
otg_get_transceiver() call returns NULL.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Shtylyov [Wed, 29 Sep 2010 06:54:30 +0000 (09:54 +0300)]
usb: musb: blackfin: call usb_nop_xceiv_unregister() in musb_platform_exit()
commit
3daad24d6c72affdd40e8b6a75c87d3c175880b6 upstream.
Blackfin's musb_platform_exit() forgets to call usb_nop_xceiv_unregister().
While fixing this, also remove the unneeded blank line there.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sergei Shtylyov [Wed, 29 Sep 2010 06:54:29 +0000 (09:54 +0300)]
USB: MUSB: fix kernel WARNING/oops when unloading module in OTG mode
commit
f405387435a85a440d1ce16f3ca36e042281643a upstream.
Since commit
461972d8a4c94bc44f11a13046041c78a7cf18dd (musb_core: don't call
musb_platform_exit() twice), unloading the driver module results in a WARNING
"kobject: '(null)' (
c73de788): is not initialized, yet kobject_put() is being
called." (or even kernel oops) on e.g. DaVincis, though only in the OTG mode.
There exists dubious and unbalanced put_device() call in musb_free() which
takes place only in the OTG mode. As this commit caused musb_platform_exit()
to be called (and so unregister the NOP transceiver) before this put_device()
call, this function references already freed memory.
On the other hand, all the glue layers miss the otg_put_transceiver() call,
complementary to the otg_get_transceiver() call that they do. So, I think
the solution is to get rid of the strange put_device() call, and instead
call otg_put_transceiver() in the glue layers...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 19 Oct 2010 16:05:43 +0000 (09:05 -0700)]
USB: ftdi_sio: add device ids for ScienceScope
commit
0f266abd70cd83571eca019f764b5f1992da7361 upstream.
This adds the requested device ids to the ftdi_sio driver.
Reported-by: Ewan Bingham <ewan@auc.co.uk>
Cc: Kuba Ober <kuba@mareimbrium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Daniel Suchy [Tue, 12 Oct 2010 13:44:24 +0000 (15:44 +0200)]
USB: ftdi_sio: new VID/PIDs for various Papouch devices
commit
59c6ccd9f9aecfa59c99ceba6d4d34b180547a05 upstream.
This patch for FTDI USB serial driver ads new VID/PIDs used on various
devices manufactured by Papouch (http://www.papouch.com). These devices
have their own VID/PID, although they're using standard FTDI chip. In
ftdi_sio.c, I also made small cleanup to have declarations for all
Papouch devices together.
Signed-off-by: Daniel Suchy <danny@danysek.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Rainer Keller [Tue, 28 Sep 2010 10:27:43 +0000 (12:27 +0200)]
USB: add PID for FTDI based OpenDCC hardware
commit
99c1e4f89d1033444ce4d0c064bd2826e81c3775 upstream.
The OpenDCC project is developing a new hardware. This patch adds its
PID to the list of known FTDI devices. The PID can be found at
http://www.opendcc.de/elektronik/usb/opendcc_usb.html
Signed-off-by: Rainer Keller <mail@rainerkeller.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johan Hovold [Sun, 12 Sep 2010 14:31:45 +0000 (16:31 +0200)]
USB: ftdi_sio: revert "USB: ftdi_sio: fix DTR/RTS line modes"
commit
677aeafe19e88c282af74564048243ccabb1c590 upstream.
This reverts commit
6a1a82df91fa0eb1cc76069a9efe5714d087eccd.
RTS and DTR should not be modified based on CRTSCTS when calling
set_termios.
Modem control lines are raised at port open by the tty layer and should stay
raised regardless of whether hardware flow control is enabled or not.
This is in conformance with the way serial ports work today and many
applications depend on this behaviour to be able to talk to hardware
implementing hardware flow control (without the applications actually using
it).
Hardware which expects different behaviour on these lines can always
use TIOCMSET/TIOCMBI[SC] after port open to change them.
Reported-by: Daniel Mack <daniel@caiaq.de>
Reported-by: Dave Mielke <dave@mielke.cc>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Rich Mattes [Tue, 14 Sep 2010 04:35:40 +0000 (00:35 -0400)]
USB: ftdi_sio: Add PID for accesio products
commit
3126d8236ca6f68eb8292c6af22c2e59afbeef24 upstream.
Adds support for Accesio USB to Serial adapters, which are built around
FTDI FT232 UARTs. Tested with the Accesio USB-COM-4SM.
Signed-off-by: Rich Mattes <richmattes@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michal Nazarewicz [Thu, 12 Aug 2010 15:43:44 +0000 (17:43 +0200)]
USB: gadget: g_multi: fixed vendor and product ID
commit
1c6529e92b7682573837e9c9eb7b5ba7a8216a88 upstream.
This patch fixes the vendor and product ID the gadget uses
by replacing the temporary IDs that were used during
development (which should never get into mainline) with
proper IDs.
Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michal Nazarewicz [Thu, 12 Aug 2010 15:43:45 +0000 (17:43 +0200)]
USB: gadget: g_ffs: fixed vendor and product ID
commit
ba0534be935d7b24e5fdd6f82c443ee75abc9149 upstream.
This patch fixes the vendor and product ID the gadget uses
by replacing the temporary IDs that were used during
development (which should never get into mainline) with
proper IDs.
Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Roger Quadros [Wed, 8 Sep 2010 10:48:44 +0000 (13:48 +0300)]
usb gadget: composite: prevent OOPS for non-standard control request
commit
5c836e4d583701a5eecb288b5f131da39115f5ec upstream.
The composite gadget will OOPS if the host sends a control request
targetted to an interface of an un-configured composite device. This patch
prevents this.
The OOPS was observed during WHQL USB CV tests. With this patch, the device
STALLs as per requirement.
Failing test case: From host do the following. I used libusb-1.0
1) Set configuration to zero.
libusb_control_transfer(device_handle,
0, /* standard OUT */
0x9, /* setConfiguration */
0, 0, NULL, 0, 0);
2) Query current configuratioan.
libusb_control_transfer(device_handle,
0x80, /* standard IN*/
0x8, /* getConfiguration */
0, 0, data, 1, 0);
3) Send the non-standard ctrl transfer targetted to interface
libusb_control_transfer(device_handle,
0x81, /* standard IN to interface*/
0x6, /* getDescriptor */
0x2300, 0, data, 0x12, 0);
Signed-off-by: Roger Quadros <roger.quadros@nokia.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Robert Lukassen <robert.lukassen@tomtom.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Julia Lawall [Fri, 15 Oct 2010 13:00:06 +0000 (15:00 +0200)]
drivers/net/wireless/p54/eeprom.c: Return -ENOMEM on memory allocation failure
commit
0d91f22b75347d9503b17a42b6c74d3f7750acd6 upstream.
In this code, 0 is returned on memory allocation failure, even though other
failures return -ENOMEM or other similar values.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression ret;
expression x,e1,e2,e3;
@@
ret = 0
... when != ret = e1
*x = \(kmalloc\|kcalloc\|kzalloc\)(...)
... when != ret = e2
if (x == NULL) { ... when != ret = e3
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Christian Lamparter [Fri, 1 Oct 2010 20:01:24 +0000 (22:01 +0200)]
p54usb: add five more USBIDs
commit
1a92795dac419128eb511dce30a6aad672064b88 upstream.
Source:
http://www.wikidevi.com/wiki/Intersil/p54/usb/windows
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Christian Lamparter [Sun, 22 Aug 2010 20:41:33 +0000 (22:41 +0200)]
p54usb: fix off-by-one on !CONFIG_PM
commit
11791a6f7534906b4a01ffb54ba0b02ca39398ef upstream.
The ISL3887 chip needs a USB reset, whenever the
usb-frontend module "p54usb" is reloaded.
This patch fixes an off-by-one bug, if the user
is running a kernel without the CONFIG_PM option
set and for some reason (e.g.: compat-wireless)
wants to switch between different p54usb modules.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nicolas Kaiser [Thu, 21 Oct 2010 12:56:00 +0000 (14:56 +0200)]
pipe: fix failure to return error code on ->confirm()
commit
e5953cbdff26f7cbae7eff30cd9b18c4e19b7594 upstream.
The arguments were transposed, we want to assign the error code to
'ret', which is being returned.
Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johan Hovold [Thu, 21 Oct 2010 08:49:10 +0000 (10:49 +0200)]
USB: mct_u232: fix broken close
commit
92ca0dc5ee022e4c0e488177e1d8865a0778c6c2 upstream.
Fix regression introduced by commit
f26788da3b342099d2b02d99ba1cb7f154d6ef7b (USB: serial: refactor generic
close) which broke driver close().
This driver uses non-standard semantics for the read urb which makes the
generic close function fail to kill it (the read urb is actually an
interrupt urb and therefore bulk_in size is zero).
Reported-by: Eric Shattow "Eprecocious" <lucent@gmail.com>
Tested-by: Eric Shattow "Eprecocious" <lucent@gmail.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Joerg Roedel [Thu, 2 Sep 2010 15:29:46 +0000 (17:29 +0200)]
KVM: SVM: Restore correct registers after sel_cr0 intercept emulation
commit
cda0008299a06f0d7218c6037c3c02d7a865e954 upstream.
This patch implements restoring of the correct rip, rsp, and
rax after the svm emulation in KVM injected a selective_cr0
write intercept into the guest hypervisor. The problem was
that the vmexit is emulated in the instruction emulation
which later commits the registers right after the write-cr0
instruction. So the l1 guest will continue to run with the
l2 rip, rsp and rax resulting in unpredictable behavior.
This patch is not the final word, it is just an easy patch
to fix the issue. The real fix will be done when the
instruction emulator is made aware of nested virtualization.
Until this is done this patch fixes the issue and provides
an easy way to fix this in -stable too.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Joerg Roedel [Fri, 10 Sep 2010 15:31:06 +0000 (17:31 +0200)]
KVM: X86: Report SVM bit to userspace only when supported
commit
4c62a2dc92518c5adf434df8e5c2283c6762672a upstream.
This patch fixes a bug in KVM where it _always_ reports the
support of the SVM feature to userspace. But KVM only
supports SVM on AMD hardware and only when it is enabled in
the kernel module. This patch fixes the wrong reporting.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bart Oldeman [Thu, 23 Sep 2010 17:16:58 +0000 (13:16 -0400)]
x86, vm86: Fix preemption bug for int1 debug and int3 breakpoint handlers.
commit
6554287b1de0448f1e02e200d02b43914e997d15 upstream.
Impact: fix kernel bug such as:
BUG: scheduling while atomic: dosemu.bin/19680/0x00000004
See also Ubuntu bug 455067 at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/455067
Commits
4915a35e35a037254550a2ba9f367a812bc37d40
("Use preempt_conditional_sti/cli in do_int3, like on x86_64.")
and
3d2a71a596bd9c761c8487a2178e95f8a61da083
("x86, traps: converge do_debug handlers")
started disabling preemption in int1 and int3 handlers on i386.
The problem with vm86 is that the call to handle_vm86_trap() may jump
straight to entry_32.S and never returns so preempt is never enabled
again, and there is an imbalance in the preempt count.
Commit
be716615fe596ee117292dc615e95f707fb67fd1 ("x86, vm86:
fix preemption bug"), which was later (accidentally?) reverted by commit
08d68323d1f0c34452e614263b212ca556dae47f ("hw-breakpoints: modifying
generic debug exception to use thread-specific debug registers")
fixed the problem for debug exceptions but not for breakpoints.
There are three solutions to this problem.
1. Reenable preemption before calling handle_vm86_trap(). This
was the approach that was later reverted.
2. Do not disable preemption for i386 in breakpoint and debug handlers.
This was the situation before October 2008. As far as I understand
preemption only needs to be disabled on x86_64 because a seperate stack is
used, but it's nice to have things work the same way on
i386 and x86_64.
3. Let handle_vm86_trap() return instead of jumping to assembly code.
By setting a flag in _TIF_WORK_MASK, either TIF_IRET or TIF_NOTIFY_RESUME,
the code in entry_32.S is instructed to return to 32 bit mode from
V86 mode. The logic in entry_32.S was already present to handle signals.
(I chose TIF_IRET because it's slightly more efficient in
do_notify_resume() in signal.c, but in fact TIF_IRET can probably be
replaced by TIF_NOTIFY_RESUME everywhere.)
I'm submitting approach 3, because I believe it is the most elegant
and prevents future confusion. Still, an obvious
preempt_conditional_cli(regs); is necessary in traps.c to correct the
bug.
[ hpa: This is technically a regression, but because:
1. the regression is so old,
2. the patch seems relatively high risk, justifying more testing, and
3. we're late in the 2.6.36-rc cycle,
I'm queuing it up for the 2.6.37 merge window. It might, however,
justify as a -stable backport at a latter time, hence Cc: stable. ]
Signed-off-by: Bart Oldeman <bartoldeman@users.sourceforge.net>
LKML-Reference: <alpine.DEB.2.00.
1009231312330.4732@localhost.localdomain>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Cliff Wickman [Wed, 8 Sep 2010 15:14:27 +0000 (10:14 -0500)]
x86, kdump: Change copy_oldmem_page() to use cached addressing
commit
37a2f9f30a360fb03522d15c85c78265ccd80287 upstream.
The copy of /proc/vmcore to a user buffer proceeds much faster
if the kernel addresses memory as cached.
With this patch we have seen an increase in transfer rate from
less than 15MB/s to 80-460MB/s, depending on size of the
transfer. This makes a big difference in time needed to save a
system dump.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: kexec@lists.infradead.org
LKML-Reference: <E1OtMLz-0001yp-Ia@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Suresh Siddha [Fri, 27 Aug 2010 18:09:48 +0000 (11:09 -0700)]
x86, intr-remap: Set redirection hint in the IRTE
commit
75e3cfbed6f71a8f151dc6e413b6ce3c390030cb upstream.
Currently the redirection hint in the interrupt-remapping table entry
is set to 0, which means the remapped interrupt is directed to the
processors listed in the destination. So in logical flat mode
in the presence of intr-remapping, this results in a single
interrupt multi-casted to multiple cpu's as specified by the destination
bit mask. But what we really want is to send that interrupt to one of the cpus
based on the lowest priority delivery mode.
Set the redirection hint in the IRTE to '1' to indicate that we want
the remapped interrupt to be directed to only one of the processors
listed in the destination.
This fixes the issue of same interrupt getting delivered to multiple cpu's
in the logical flat mode in the presence of interrupt-remapping. While
there is no functional issue observed with this behavior, this will
impact performance of such configurations (<=8 cpu's using logical flat
mode in the presence of interrupt-remapping)
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <
20100827181049.
013051492@sbsiddha-MOBL3.sc.intel.com>
Cc: Weidong Han <weidong.han@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andreas Herrmann [Thu, 30 Sep 2010 12:32:35 +0000 (14:32 +0200)]
x86, mtrr: Assume SYS_CFG[Tom2ForceMemTypeWB] exists on all future AMD CPUs
commit
3fdbf004c1706480a7c7fac3c9d836fa6df20d7d upstream.
Instead of adapting the CPU family check in amd_special_default_mtrr()
for each new CPU family assume that all new AMD CPUs support the
necessary bits in SYS_CFG MSR.
Tom2Enabled is architectural (defined in APM Vol.2).
Tom2ForceMemTypeWB is defined in all BKDGs starting with K8 NPT.
In pre K8-NPT BKDG this bit is reserved (read as zero).
W/o this adaption Linux would unnecessarily complain about bad MTRR
settings on every new AMD CPU family, e.g.
[ 0.000000] WARNING: BIOS bug: CPU MTRRs don't cover all of memory, losing 4863MB of RAM.
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
LKML-Reference: <
20100930123235.GB20545@loge.amd.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Paul Fox [Fri, 1 Oct 2010 17:17:19 +0000 (18:17 +0100)]
x86, olpc: Don't retry EC commands forever
commit
286e5b97eb22baab9d9a41ca76c6b933a484252c upstream.
Avoids a potential infinite loop.
It was observed once, during an EC hacking/debugging
session - not in regular operation.
Signed-off-by: Daniel Drake <dsd@laptop.org>
Cc: dilinger@queued.net
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alok Kataria [Mon, 11 Oct 2010 21:37:08 +0000 (14:37 -0700)]
x86, kexec: Make sure to stop all CPUs before exiting the kernel
commit
76fac077db6b34e2c6383a7b4f3f4f7b7d06d8ce upstream.
x86 smp_ops now has a new op, stop_other_cpus which takes a parameter
"wait" this allows the caller to specify if it wants to stop until all
the cpus have processed the stop IPI. This is required specifically
for the kexec case where we should wait for all the cpus to be stopped
before starting the new kernel. We now wait for the cpus to stop in
all cases except for panic/kdump where we expect things to be broken
and we are doing our best to make things work anyway.
This patch fixes a legitimate regression, which was introduced during
2.6.30, by commit id
4ef702c10b5df18ab04921fc252c26421d4d6c75.
Signed-off-by: Alok N Kataria <akataria@vmware.com>
LKML-Reference: <
1286833028.1372.20.camel@ank32.eng.vmware.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
H. Peter Anvin [Thu, 7 Oct 2010 23:42:54 +0000 (16:42 -0700)]
x86, mrst: A function in a header file needs to be marked "inline"
commit
55572b293b3a5929e8c54bc91d14ae6264186bf6 upstream.
A function in a header file needs to be explicitly marked "inline", or
gcc will complain if it is not used.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
LKML-Reference: <
1274295685-6774-3-git-send-email-jacob.jun.pan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andre Przywara [Mon, 6 Sep 2010 13:14:17 +0000 (15:14 +0200)]
x86, cpu: Fix renamed, not-yet-shipping AMD CPUID feature bit
commit
7ef8aa72ab176e0288f363d1247079732c5d5792 upstream.
The AMD SSE5 feature set as-it has been replaced by some extensions
to the AVX instruction set. Thus the bit formerly advertised as SSE5
is re-used for one of these extensions (XOP).
Although this changes the /proc/cpuinfo output, it is not user visible, as
there are no CPUs (yet) having this feature.
To avoid confusion this should be added to the stable series, too.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
LKML-Reference: <
1283778860-26843-2-git-send-email-andre.przywara@amd.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Cliff Wickman [Thu, 16 Sep 2010 16:44:02 +0000 (11:44 -0500)]
mm, x86: Saving vmcore with non-lazy freeing of vmas
commit
3ee48b6af49cf534ca2f481ecc484b156a41451d upstream.
During the reading of /proc/vmcore the kernel is doing
ioremap()/iounmap() repeatedly. And the buildup of un-flushed
vm_area_struct's is causing a great deal of overhead. (rb_next()
is chewing up most of that time).
This solution is to provide function set_iounmap_nonlazy(). It
causes a subsequent call to iounmap() to immediately purge the
vma area (with try_purge_vmap_area_lazy()).
With this patch we have seen the time for writing a 250MB
compressed dump drop from 71 seconds to 44 seconds.
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: kexec@lists.infradead.org
LKML-Reference: <E1OwHZ4-0005WK-Tw@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Len Brown [Sun, 24 Oct 2010 03:25:53 +0000 (23:25 -0400)]
intel_idle: do not use the LAPIC timer for ATOM C2
commit
c25d29952b2a8c9aaf00e081c9162a0e383030cd upstream.
If we use the LAPIC timer during ATOM C2 on
some nvidia chisets, the system stalls.
https://bugzilla.kernel.org/show_bug.cgi?id=21032
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: Tom Gundersen <teg@jklm.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tejun Heo [Fri, 15 Oct 2010 09:00:08 +0000 (11:00 +0200)]
libahci: fix result_tf handling after an ATA PIO data-in command
commit
6ad601955315b010a117306b994f2204fae85fdc upstream.
ATA devices don't send D2H Reg FIS after an successful ATA PIO data-in
command. The host is supposed to take the TF and E_Status of the
preceding PIO Setup FIS. Update ahci_qc_fill_rtf() such that it takes
TF + E_Status from PIO Setup FIS after a successful ATA PIO data-in
command.
Without this patch, result_tf for such a command is filled with the
content of the previous D2H Reg FIS which belongs to a previous
command, which can make the command incorrectly seen as failed.
* Patch updated to grab the whole TF + E_Status from PIO Setup FIS
instead of just E_Status as suggested by Robert Hancock.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Mark Lord <kernel@teksavvy.com>
Cc: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Suresh Jayaraman [Fri, 17 Sep 2010 13:26:39 +0000 (18:56 +0530)]
cifs: fix broken oplock handling
commit
aa91c7e4ab9b0842b7d7a7cbf8cca18b20df89b5 upstream.
cifs_new_fileinfo() does not use the 'oplock' value from the callers. Instead,
it sets it to REQ_OPLOCK which seems wrong. We should be using the oplock value
obtained from the Server to set the inode's clientCanCacheAll or
clientCanCacheRead flags. Fix this by passing oplock from the callers to
cifs_new_fileinfo().
This change dates back to commit
a6ce4932 (2.6.30-rc3). So, all the affected
versions will need this fix. Please Cc stable once reviewed and accepted.
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Darren Hart [Sun, 17 Oct 2010 15:35:04 +0000 (08:35 -0700)]
futex: Fix errors in nested key ref-counting
commit
7ada876a8703f23befbb20a7465a702ee39b1704 upstream.
futex_wait() is leaking key references due to futex_wait_setup()
acquiring an additional reference via the queue_lock() routine. The
nested key ref-counting has been masking bugs and complicating code
analysis. queue_lock() is only called with a previously ref-counted
key, so remove the additional ref-counting from the queue_(un)lock()
functions.
Also futex_wait_requeue_pi() drops one key reference too many in
unqueue_me_pi(). Remove the key reference handling from
unqueue_me_pi(). This was paired with a queue_lock() in
futex_lock_pi(), so the count remains unchanged.
Document remaining nested key ref-counting sites.
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Reported-and-tested-by: Matthieu Fertré<matthieu.fertre@kerlabs.com>
Reported-by: Louis Rilling<louis.rilling@kerlabs.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: John Kacur <jkacur@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
LKML-Reference: <
4CBB17A8.70401@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nathan Holstein [Fri, 15 Oct 2010 15:54:02 +0000 (11:54 -0400)]
Bluetooth: fix oops in l2cap_connect_req
commit
d793fe8caa3911e6a1e826b45d4ee00d250cdec8 upstream.
In error cases when the ACL is insecure or we fail to allocate a new
struct sock, we jump to the "response" label. If so, "sk" will be
null and the kernel crashes.
Signed-off-by: Nathan Holstein <nathan.holstein@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Fri, 22 Oct 2010 13:11:26 +0000 (14:11 +0100)]
bluetooth: Fix missing NULL check
commit
c19483cc5e56ac5e22dd19cf25ba210ab1537773 upstream.
Fortunately this is only exploitable on very unusual hardware.
[Reported a while ago but nothing happened so just fixing it]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 13 Sep 2010 21:47:00 +0000 (17:47 -0400)]
sched: Fix string comparison in /proc/sched_features
commit
7740191cd909b75d75685fb08a5d1f54b8a9d28b upstream.
Fix incorrect handling of the following case:
INTERACTIVE
INTERACTIVE_SOMETHING_ELSE
The comparison only checks up to each element's length.
Changelog since v1:
- Embellish using some Rostedtisms.
[ mingo: ^^ == smaller and cleaner ]
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tony Lindgren <tony@atomide.com>
LKML-Reference: <
20100913214700.GB16118@Krystal>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Walleij [Mon, 11 Oct 2010 14:36:51 +0000 (16:36 +0200)]
sched: Drop all load weight manipulation for RT tasks
commit
17bdcf949d03306b308c5fb694849cd35f119807 upstream.
Load weights are for the CFS, they do not belong in the RT task. This makes all
RT scheduling classes leave the CFS weights alone.
This fixes a real bug as well: I noticed the following phonomena: a process
elevated to SCHED_RR forks with SCHED_RESET_ON_FORK set, and the child is
indeed SCHED_OTHER, and the niceval is indeed reset to 0. However the weight
inserted by set_load_weight() remains at 0, giving the task insignificat
priority.
With this fix, the weight is reset to what the task had before being elevated
to SCHED_RR/SCHED_FIFO.
Cc: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
1286807811-10568-1-git-send-email-linus.walleij@stericsson.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Vasiliy Kulikov [Sun, 17 Oct 2010 14:41:24 +0000 (18:41 +0400)]
pcmcia: synclink_cs: fix information leak to userland
commit
5b917a1420d3d1a9c8da49fb0090692dc9aaee86 upstream.
Structure new_line is copied to userland with some padding fields unitialized.
It leads to leaking of stack memory.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Paul Mackerras [Thu, 9 Sep 2010 19:02:40 +0000 (19:02 +0000)]
powerpc/perf: Fix sampling enable for PPC970
commit
9f5f9ffe50e90ed73040d2100db8bfc341cee352 upstream.
The logic to distinguish marked instruction events from ordinary events
on PPC970 and derivatives was flawed. The result is that instruction
sampling didn't get enabled in the PMU for some marked instruction
events, so they would never trigger. This fixes it by adding the
appropriate break statements in the switch statement.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Stephane Eranian [Fri, 15 Oct 2010 13:26:01 +0000 (15:26 +0200)]
perf_events: Fix bogus context time tracking
commit
c530ccd9a1864a44a7ff35826681229ce9f2357a upstream.
You can only call update_context_time() when the context
is active, i.e., the thread it is attached to is still running.
However, perf_event_read() can be called even when the context
is inactive, e.g., user read() the counters. The call to
update_context_time() must be conditioned on the status of
the context, otherwise, bogus time_enabled, time_running may
be returned. Here is an example on AMD64. The task program
is an example from libpfm4. The -p prints deltas every 1s.
$ task -p -e cpu_clk_unhalted sleep 5
2,266,610 cpu_clk_unhalted (0.00% scaling, ena=2,158,982, run=2,158,982)
0 cpu_clk_unhalted (0.00% scaling, ena=2,158,982, run=2,158,982)
0 cpu_clk_unhalted (0.00% scaling, ena=2,158,982, run=2,158,982)
0 cpu_clk_unhalted (0.00% scaling, ena=2,158,982, run=2,158,982)
0 cpu_clk_unhalted (0.00% scaling, ena=2,158,982, run=2,158,982)
5,242,358,071 cpu_clk_unhalted (99.95% scaling, ena=5,000,359,984, run=2,319,270)
Whereas if you don't read deltas, e.g., no call to perf_event_read() until
the process terminates:
$ task -e cpu_clk_unhalted sleep 5
2,497,783 cpu_clk_unhalted (0.00% scaling, ena=2,376,899, run=2,376,899)
Notice that time_enable, time_running are bogus in the first example
causing bogus scaling.
This patch fixes the problem, by conditionally calling update_context_time()
in perf_event_read().
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
4cb856dc.
51edd80a.5ae0.38fb@mx.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Stephane Eranian [Fri, 15 Oct 2010 13:15:01 +0000 (15:15 +0200)]
perf_events: Fix bogus AMD64 generic TLB events
commit
ba0cef3d149ce4db293c572bf36ed352b11ce7b9 upstream.
PERF_COUNT_HW_CACHE_DTLB:READ:MISS had a bogus umask value of 0 which
counts nothing. Needed to be 0x7 (to count all possibilities).
PERF_COUNT_HW_CACHE_ITLB:READ:MISS had a bogus umask value of 0 which
counts nothing. Needed to be 0x3 (to count all possibilities).
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
LKML-Reference: <
4cb85478.
41e9d80a.44e2.3f00@mx.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Sat, 9 Oct 2010 20:26:12 +0000 (13:26 -0700)]
Staging: phison: fix problem caused by libata change
commit
cf10700bf8047f0668dd874b607f89516612e6c7 upstream.
The libata core changed this function so it needed to call a different
one.
See https://bugzilla.kernel.org/show_bug.cgi?id=19872 for details.
Reported-by: Heinz Wiesinger <HMWiesinger@gmx.at>
Tested-by: Heinz Wiesinger <HMWiesinger@gmx.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Max Vozeler [Tue, 21 Sep 2010 15:43:30 +0000 (17:43 +0200)]
staging: usbip: Process event flags without delay
commit
584c5b7cf06194464240280483ee0376cdddbbae upstream.
The way the event handler works can cause it to delay
events until eventual wakeup for another event.
For example, on device detach (vhci):
- Write to sysfs detach file
-> usbip_event_add(VDEV_EVENT_DOWN)
-> wakeup()
#define VDEV_EVENT_DOWN (USBIP_EH_SHUTDOWN | USBIP_EH_RESET).
- Event thread wakes up and passes the event to
event_handler() to process.
- It processes and clears the USBIP_EH_SHUTDOWN
flag then returns.
- The outer event loop (event_handler_loop()) calls
wait_event_interruptible().
The processing of the second flag which is part of
VDEV_EVENT_DOWN (USBIP_EH_RESET) did not happen yet.
It is delayed until the next event.
This means the ->reset callback may not happen for
a long time (if ever), leaving the usbip port in a
weird state which prevents its reuse.
This patch changes the handler to process all flags
before waiting for another wakeup.
I have verified this change to fix a problem which
prevented reattach of a usbip device. It also helps
for socket errors which missed the RESET as well.
The delayed event processing also affects the stub
side of usbip and the error handling there.
Signed-off-by: Max Vozeler <mvz@vozeler.com>
Reported-by: Marco Lancione <marco@optikam.com>
Tested-by: Luc Jalbert <ljalbert@optikam.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Max Vozeler [Tue, 21 Sep 2010 15:31:40 +0000 (17:31 +0200)]
staging: usbip: Notify usb core of port status changes
commit
0c9a32f0192e656daa2ff3c9149f6d71b4a1b873 upstream.
This patch changes vhci to behave like dummy and
other hcds when disconnecting a device.
Previously detaching a device from the root hub
did not notify the usb core of the disconnect and
left the device visible.
Signed-off-by: Max Vozeler <mvz@vozeler.com>
Reported-by: Marco Lancione <marco@optikam.com>
Tested-by: Luc Jalbert <ljalbert@optikam.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Wed, 20 Oct 2010 20:30:22 +0000 (13:30 -0700)]
Linux 2.6.36
Linus Torvalds [Wed, 20 Oct 2010 20:18:21 +0000 (13:18 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
MIPS: O32 compat/N32: Fix to use compat syscall wrappers for AIO syscalls.
MAINTAINERS: Change list for ioc_serial to linux-serial.
SERIAL: ioc3_serial: Return -ENOMEM on memory allocation failure
MIPS: jz4740: Fix Kbuild Platform file.
MIPS: Repair Kbuild make clean breakage.
Amit Shah [Wed, 20 Oct 2010 03:15:43 +0000 (13:45 +1030)]
virtio: console: Don't block entire guest if host doesn't read data
If the host is slow in reading data or doesn't read data at all,
blocking write calls not only blocked the program that called write()
but the entire guest itself.
To overcome this, let's not block till the host signals it has given
back the virtio ring element we passed it. Instead, send the buffer to
the host and return to userspace. This operation then becomes similar
to how non-blocking writes work, so let's use the existing code for this
path as well.
This code change also ensures blocking write calls do get blocked if
there's not enough room in the virtio ring as well as they don't return
-EAGAIN to userspace.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
CC: stable@kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 20 Oct 2010 20:13:09 +0000 (13:13 -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] bsg: fix incorrect device_status value
[SCSI] Fix VPD inquiry page wrapper
Linus Torvalds [Wed, 20 Oct 2010 16:00:44 +0000 (09:00 -0700)]
Merge branch 'kvm-updates/2.6.36' of git://git./virt/kvm/kvm
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Fix fs/gs reload oops with invalid ldt
Michel Thebeau [Tue, 28 Sep 2010 18:15:37 +0000 (14:15 -0400)]
MIPS: O32 compat/N32: Fix to use compat syscall wrappers for AIO syscalls.
[Ralf: Michel's original patch only fixed N32; I replicated the same fix
for O32.]
Signed-off-by: Michel Thebeau <michel.thebeau@windriver.com>
Cc: paul.gortmaker@windriver.com
Cc: bruce.ashfield@windriver.com
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Ralf Baechle [Tue, 19 Oct 2010 17:32:41 +0000 (18:32 +0100)]
MAINTAINERS: Change list for ioc_serial to linux-serial.
IOC3 is also being used on SGI MIPS systems but this particular driver is
only being used on IA64 systems so linux-mips made no sense as a list. Pat
also thinks linux-serial@vger.kernel.org is the better list.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Julia Lawall [Fri, 15 Oct 2010 13:00:09 +0000 (15:00 +0200)]
SERIAL: ioc3_serial: Return -ENOMEM on memory allocation failure
In this code, 0 is returned on memory allocation failure, even though other
failures return -ENOMEM or other similar values.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression ret;
expression x,e1,e2,e3;
@@
ret = 0
... when != ret = e1
*x = \(kmalloc\|kcalloc\|kzalloc\)(...)
... when != ret = e2
if (x == NULL) { ... when != ret = e3
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
To: Pat Gefre <pfg@sgi.com>
Cc: kernel-janitors@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1704/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 19 Oct 2010 01:05:49 +0000 (18:05 -0700)]
MIPS: jz4740: Fix Kbuild Platform file.
The platform specific files should be included via the platform-y
variable.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Patchwork: https://patchwork.linux-mips.org/patch/1719/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 19 Oct 2010 00:51:26 +0000 (17:51 -0700)]
MIPS: Repair Kbuild make clean breakage.
When running make clean, Kbuild doesn't process the .config file, so nothing
generates a platform-y variable. We can get it to descend into the platform
directories by setting $(obj-).
The dec Platform file was unconditionally setting platform-, obliterating
its previous contents and preventing some directories from being cleaned.
This is change to an append operation '+=' to allow cavium-octeon to be
cleaned.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Patchwork: https://patchwork.linux-mips.org/patch/1718/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Torvalds [Tue, 19 Oct 2010 17:10:20 +0000 (10:10 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon/kms: avivo cursor workaround applies to evergreen as well
Avi Kivity [Tue, 19 Oct 2010 14:46:55 +0000 (16:46 +0200)]
KVM: Fix fs/gs reload oops with invalid ldt
kvm reloads the host's fs and gs blindly, however the underlying segment
descriptors may be invalid due to the user modifying the ldt after loading
them.
Fix by using the safe accessors (loadsegment() and load_gs_index()) instead
of home grown unsafe versions.
This is CVE-2010-3698.
KVM-Stable-Tag.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Linus Torvalds [Mon, 18 Oct 2010 20:10:36 +0000 (13:10 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
MIPS: Enable ISA_DMA_API config to fix build failure
MIPS: 32-bit: Fix build failure in asm/fcntl.h
MIPS: Remove all generated vmlinuz* files on "make clean"
MIPS: do_sigaltstack() expects userland pointers
MIPS: Fix error values in case of bad_stack
MIPS: Sanitize restart logics
MIPS: secure_computing, syscall audit: syscall number should in r2, not r0.
MIPS: Don't block signals if we'd failed to setup a sigframe
Linus Torvalds [Mon, 18 Oct 2010 20:10:08 +0000 (13:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: evdev - fix EVIOCSABS regression
Input: evdev - fix Ooops in EVIOCGABS/EVIOCSABS
Linus Torvalds [Mon, 18 Oct 2010 20:09:26 +0000 (13:09 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: ohci: fix TI TSB82AA2 regression since 2.6.35
Sascha Hauer [Mon, 18 Oct 2010 08:16:26 +0000 (10:16 +0200)]
mxc_nand: do not depend on disabling the irq in the interrupt handler
This patch reverts the driver to enabling/disabling the NFC interrupt
mask rather than enabling/disabling the system interrupt. This cleans
up the driver so that it doesn't rely on interrupts being disabled
within the interrupt handler.
For i.MX21 we keep the current behaviour, that is calling
enable_irq/disable_irq_nosync to enable/disable interrupts. This patch
is based on earlier work by John Ogness.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: John Ogness <john.ogness@linutronix.de>
Tested-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 18 Oct 2010 20:05:10 +0000 (13:05 -0700)]
Merge branch 'for-linus/i2c/2636-rc8' of git://git.fluff.org/bjdooks/linux
* 'for-linus/i2c/2636-rc8' of git://git.fluff.org/bjdooks/linux:
i2c-imx: do not allow interruptions when waiting for I2C to complete
i2c-davinci: Fix TX setup for more SoCs
Linus Torvalds [Mon, 18 Oct 2010 20:04:33 +0000 (13:04 -0700)]
Merge branch 'fixes'
* fixes:
v4l1: fix 32-bit compat microcode loading translation
De-pessimize rds_page_copy_user
Namhyung Kim [Mon, 18 Oct 2010 03:55:21 +0000 (12:55 +0900)]
MIPS: Enable ISA_DMA_API config to fix build failure
Add ISA_DMA_API config item and select it when GENERIC_ISA_DMA enabled.
This fixes build failure on allmodconfig like following:
CC sound/isa/es18xx.o
sound/isa/es18xx.c: In function 'snd_es18xx_playback1_prepare':
sound/isa/es18xx.c:501:9: error: implicit declaration of function 'snd_dma_program'
sound/isa/es18xx.c: In function 'snd_es18xx_playback_pointer':
sound/isa/es18xx.c:818:3: error: implicit declaration of function 'snd_dma_pointer'
make[3]: *** [sound/isa/es18xx.o] Error 1
make[2]: *** [sound/isa/es18xx.o] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1717/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Namhyung Kim [Sun, 17 Oct 2010 16:41:39 +0000 (01:41 +0900)]
MIPS: 32-bit: Fix build failure in asm/fcntl.h
CC security/integrity/ima/ima_fs.o
In file included from linux/include/linux/fcntl.h:4:0,
from linux/security/integrity/ima/ima_fs.c:18:
linux/arch/mips/include/asm/fcntl.h:63:2: error: expected specifier-qualifier-list before 'off_t'
make[3]: *** [security/integrity/ima/ima_fs.o] Error 1
make[2]: *** [security/integrity/ima/ima_fs.o] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1715/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Wu Zhangjin [Wed, 22 Sep 2010 06:03:57 +0000 (14:03 +0800)]
MIPS: Remove all generated vmlinuz* files on "make clean"
[Ralf: I changed the patch to explicitly list all files to be deleted out
of paranoia.]
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/1590/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Al Viro [Tue, 28 Sep 2010 17:50:57 +0000 (18:50 +0100)]
MIPS: do_sigaltstack() expects userland pointers
o32 compat does the right thing, native and n32 compat do not...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1700/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Al Viro [Tue, 28 Sep 2010 17:50:47 +0000 (18:50 +0100)]
MIPS: Fix error values in case of bad_stack
We want EFAULT, not -<syscall number>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1699/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Al Viro [Tue, 28 Sep 2010 17:50:37 +0000 (18:50 +0100)]
MIPS: Sanitize restart logics
Put the original syscall number into ->regs[0] when we leave syscall
with error. Use it in restart logics. Everything else will have
it 0 since we pass through SAVE_SOME on all the ways in. Note that
in places like bad_stack and inllegal_syscall we leave it 0 - it's not
restartable.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1698/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Al Viro [Tue, 28 Sep 2010 17:50:27 +0000 (18:50 +0100)]
MIPS: secure_computing, syscall audit: syscall number should in r2, not r0.
As it is, audit_syscall_entry() and secure_computing() get the
bogus value (0, in fact)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1697/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Al Viro [Tue, 28 Sep 2010 17:50:17 +0000 (18:50 +0100)]
MIPS: Don't block signals if we'd failed to setup a sigframe
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1696/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Daniel Mack [Mon, 18 Oct 2010 15:43:50 +0000 (08:43 -0700)]
Input: evdev - fix EVIOCSABS regression
448cd16 ("Input: evdev - rearrange ioctl handling") broke EVIOCSABS by
checking for the wrong direction bit.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Sven Neumann <s.neumann@raumfeld.com>
Tested-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Daniel Mack [Mon, 18 Oct 2010 15:43:30 +0000 (08:43 -0700)]
Input: evdev - fix Ooops in EVIOCGABS/EVIOCSABS
This fixes a regression introduced by the dynamic allocation of absinfo
for input devices. We need to bail out early for input devices which
don't have absolute axis.
[ 929.664303] Pid: 2989, comm: input Not tainted 2.6.36-rc8+ #14 MS-7260/MS-7260
[ 929.664318] EIP: 0060:[<
c12bdc01>] EFLAGS:
00010246 CPU: 0
[ 929.664331] EIP is at evdev_ioctl+0x4f8/0x59f
[ 929.664341] EAX:
00000040 EBX:
00000000 ECX:
00000006 EDX:
f45a1efc
[ 929.664355] ESI:
00000000 EDI:
f45a1efc EBP:
f45a1f24 ESP:
f45a1eb8
[ 929.664369] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 929.664402]
f470da74 f6a30e78 f462c240 00000018 bfe4a260 00000000 f45b06fc 00000000
[ 929.664429] <0>
000000c4 b769d000 c3544620 f470da74 f45b06fc f45b06fc f45a1f38 c107dd1f
[ 929.664458] <0>
f4710b74 000000c4 00000000 00000000 00000000 0000029d 00000a74 f4710b74
[ 929.664500] [<
c107dd1f>] ? handle_mm_fault+0x2be/0x59a
[ 929.664513] [<
c12bd709>] ? evdev_ioctl+0x0/0x59f
[ 929.664524] [<
c1099d30>] ? do_vfs_ioctl+0x494/0x4d9
[ 929.664538] [<
c10432a1>] ? up_read+0x16/0x29
[ 929.664550] [<
c101c818>] ? do_page_fault+0x2ff/0x32d
[ 929.664564] [<
c108d048>] ? do_sys_open+0xc5/0xcf
[ 929.664575] [<
c1099db6>] ? sys_ioctl+0x41/0x61
[ 929.664587] [<
c1002710>] ? sysenter_do_call+0x12/0x36
[ 929.684570] ---[ end trace
11b83e923bd8f2bb ]---
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Marc Kleine-Budde [Mon, 21 Jun 2010 07:27:05 +0000 (09:27 +0200)]
i2c-imx: do not allow interruptions when waiting for I2C to complete
The i2c_imx_trx_complete() function is using
wait_event_interruptible_timeout() to wait for the I2C controller to
signal that it has completed an I2C bus operation. If the process that
causes the I2C operation receives a signal, the wait will be
interrupted, returning an error. It is better to let the I2C operation
finished before handling the signal (i.e. returning into userspace).
It is safe to use wait_event_timeout() instead, because the timeout
will allow the process to exit if the I2C bus hangs. It's also better
to allow the I2C operation to finish, because unacknowledged I2C
operations can cause the I2C bus to hang.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Jon Povey [Tue, 12 Oct 2010 04:47:05 +0000 (13:47 +0900)]
i2c-davinci: Fix TX setup for more SoCs
This patch is an improvement to
4bba0fd8d1c6d405df666e2573e1a1f917098be0
which got to mainline a little early.
Sudhakar Rajashekhara explains that at least OMAP-L138 requires MDR mode
settings before DXR for correct behaviour, so load MDR first with
STT cleared and later load again with STT set.
Tested on DM355 connected to Techwell TW2836 and Wolfson WM8985
Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk>
Acked-by: Troy Kisky <troy.kisky@boundarydevices.com>
Tested-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>