platform/kernel/linux-rpi.git
13 years agoStaging: hv: Get rid of the forward declaration for blkvsc_do_read_capacity()
K. Y. Srinivasan [Fri, 22 Apr 2011 21:13:30 +0000 (14:13 -0700)]
Staging: hv: Get rid of the forward declaration for blkvsc_do_read_capacity()

Get rid of the forward declaration for blkvsc_do_read_capacity() by moving
the code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration for blkvsc_release()
K. Y. Srinivasan [Fri, 22 Apr 2011 21:13:29 +0000 (14:13 -0700)]
Staging: hv: Get rid of the forward declaration for blkvsc_release()

Get rid of the forward declaration for blkvsc_release() by moving the code
around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_shutdown()
K. Y. Srinivasan [Fri, 22 Apr 2011 21:13:28 +0000 (14:13 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_shutdown()

Get rid of the forward declaration of blkvsc_shutdown() by moving the
code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_remove()
K. Y. Srinivasan [Fri, 22 Apr 2011 21:13:27 +0000 (14:13 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_remove()

Get rid of the forward declaration of blkvsc_remove() by moving the code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_cancel_pending_reqs()
K. Y. Srinivasan [Fri, 22 Apr 2011 21:13:26 +0000 (14:13 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_cancel_pending_reqs()

Get rid of the forward declaration of blkvsc_cancel_pending_reqs() by moving
the code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_do_flush()
K. Y. Srinivasan [Fri, 22 Apr 2011 21:13:25 +0000 (14:13 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_do_flush()

Get rid of the forward declaration of blkvsc_do_flush() by moving the code
around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_cmd_completion()
K. Y. Srinivasan [Fri, 22 Apr 2011 21:13:24 +0000 (14:13 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_cmd_completion()

Get rid of the forward declaration of blkvsc_cmd_completion() by moving the
code  around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_ioctl()
K. Y. Srinivasan [Fri, 22 Apr 2011 21:13:23 +0000 (14:13 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_ioctl()

Get rid of the forward declaration of blkvsc_ioctl() by moving the code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_init_rw()
K. Y. Srinivasan [Fri, 22 Apr 2011 21:13:22 +0000 (14:13 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_init_rw()

Get rid of the forward declaration of blkvsc_init_rw() by moving the
code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: hv: convert function name NetVscDisconnectFromVsp to lower case
Haiyang Zhang [Thu, 21 Apr 2011 19:30:47 +0000 (12:30 -0700)]
staging: hv: convert function name NetVscDisconnectFromVsp to lower case

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: hv: clean up unused forward declarations
Haiyang Zhang [Thu, 21 Apr 2011 19:30:46 +0000 (12:30 -0700)]
staging: hv: clean up unused forward declarations

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: hv: move netvsc_device_add() to clean up forward declaration
Haiyang Zhang [Thu, 21 Apr 2011 19:30:45 +0000 (12:30 -0700)]
staging: hv: move netvsc_device_add() to clean up forward declaration

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: hv: move netvsc_destroy_send_buf() to clean up forward declaration
Haiyang Zhang [Thu, 21 Apr 2011 19:30:44 +0000 (12:30 -0700)]
staging: hv: move netvsc_destroy_send_buf() to clean up forward declaration

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: hv: move netvsc_destroy_recv_buf() to clean up forward declaration
Haiyang Zhang [Thu, 21 Apr 2011 19:30:43 +0000 (12:30 -0700)]
staging: hv: move netvsc_destroy_recv_buf() to clean up forward declaration

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: hv: move netvsc_send_recv_completion() to clean up forward declaration
Haiyang Zhang [Thu, 21 Apr 2011 19:30:42 +0000 (12:30 -0700)]
staging: hv: move netvsc_send_recv_completion() to clean up forward declaration

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: hv: move netvsc_receive_completion() to clean up forward declaration
Haiyang Zhang [Thu, 21 Apr 2011 19:30:41 +0000 (12:30 -0700)]
staging: hv: move netvsc_receive_completion() to clean up forward declaration

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: hv: move netvsc_initialize() to clean up forward declaration
Haiyang Zhang [Thu, 21 Apr 2011 19:30:40 +0000 (12:30 -0700)]
staging: hv: move netvsc_initialize() to clean up forward declaration

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging/easycap: easycap_probe: drop unuzed variables
Tomas Winkler [Wed, 6 Apr 2011 14:37:35 +0000 (17:37 +0300)]
staging/easycap: easycap_probe: drop unuzed variables

Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging/easycap: easycap_probe: take out duplicated code from ifdef - else
Tomas Winkler [Wed, 6 Apr 2011 14:37:34 +0000 (17:37 +0300)]
staging/easycap: easycap_probe: take out duplicated code from ifdef - else

Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging/easycap: easycap_probe : rename usb variables to common names
Tomas Winkler [Wed, 6 Apr 2011 14:37:33 +0000 (17:37 +0300)]
staging/easycap: easycap_probe : rename usb variables to common names

1. rename usb variables to more common names

struct usb_device *pusb_device -> usbdev
struct usb_host_interface *pusb_host_interface -> alt
struct usb_endpoint_descriptor *pepd ->
struct usb_interface_descriptor *pusb_interface_descriptor -> interface;

2. use usb_altnum_to_altsetting to access alternative settings

Cc: Mike Thomas <rmthomas@sciolus.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoIIO: GYRO: IIO driver for Analog Devices Digital Output Gyroscope ADXRS450
Michael Hennerich [Wed, 6 Apr 2011 09:42:49 +0000 (11:42 +0200)]
IIO: GYRO: IIO driver for Analog Devices Digital Output Gyroscope ADXRS450

From: Cliff Cai <cliff.cai@analog.com>

Add new IIO driver for Analog Devices digital output gyroscope ADXRS450

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoIIO: Documentation: Add ABI documentatio for gyro quadrature correction
Michael Hennerich [Wed, 6 Apr 2011 09:42:48 +0000 (11:42 +0200)]
IIO: Documentation: Add ABI documentatio for gyro quadrature correction

From: Cliff Cai <cliff.cai@analog.com>

Add ABI documentation for gyro quadrature correction.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoIIO: GYRO: Add MACRO for gyro quadrature correction
Michael Hennerich [Wed, 6 Apr 2011 09:42:47 +0000 (11:42 +0200)]
IIO: GYRO: Add MACRO for gyro quadrature correction

From: Cliff Cai <cliff.cai@analog.com>

Add gyro_z_quadrature_correction_raw define.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging/comedi: remove German in-file changelog
Uwe Kleine-König [Wed, 6 Apr 2011 14:48:53 +0000 (16:48 +0200)]
staging/comedi: remove German in-file changelog

My script that finds typos always wants to do s/Funktion/Function/.
Instead of adding some whilelist logic to my script just delete the
changelog that is useless in general and still more in this case as most
kernel developers don't understand it.

Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: iio: oaktrail AK8975 support via IIO
Alan Cox [Wed, 6 Apr 2011 12:31:40 +0000 (13:31 +0100)]
Staging: iio: oaktrail AK8975 support via IIO

Actually this is generic 'I have no GPIO' support for the AK8975, instead
we have to go bus polling.

Huang Liang produced an initial patch which worked by removing the support
for GPIO pins. This patch instead makes GPIO support optional and Huang then
fixed some bugs in it.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: brcm80211: removed static ASSERTs
Roland Vossen [Tue, 5 Apr 2011 19:11:58 +0000 (21:11 +0200)]
staging: brcm80211: removed static ASSERTs

Code cleanup. ASSERTs that check static (compile time) conditions
have been removed.

Signed-off-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: brcm80211: Remove symbol CONFIG_BRCM80211
Larry Finger [Sat, 2 Apr 2011 20:49:33 +0000 (15:49 -0500)]
staging: brcm80211: Remove symbol CONFIG_BRCM80211

Since the staging driver brcm80211 was renamed to brcmsmac, CONFIG_BRCM80211
is not really needed. In addition, a two-entry list hardly needs a separate
config menu.

The only awkward place in the revised code is the double addition of the
brcm80211 Makefile.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: rtl8712: fixed coding style issues
Javier M. Mellid [Sat, 2 Apr 2011 01:02:12 +0000 (03:02 +0200)]
staging: rtl8712: fixed coding style issues

Fixed some style and format issues with code.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: rtl8712: fixed coding style issues
Javier M. Mellid [Sat, 2 Apr 2011 01:01:49 +0000 (03:01 +0200)]
staging: rtl8712: fixed coding style issues

Fixed some style and format issues with headers.

Signed-off-by: Javier M. Mellid <jmunhoz@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: brcm80211: ASSERT cleanup in phy
Roland Vossen [Fri, 1 Apr 2011 10:07:10 +0000 (12:07 +0200)]
staging: brcm80211: ASSERT cleanup in phy

Code cleanup. Driver contains too many ASSERTs. Removed all ASSERTs
in the PHY that did not directly relate to a value being read from
hardware.

Signed-off-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agodrivers/staging/cx25821/cx25821-video.c: introduce missing kfree
Julia Lawall [Fri, 1 Apr 2011 14:23:44 +0000 (16:23 +0200)]
drivers/staging/cx25821/cx25821-video.c: introduce missing kfree

Error handling code following a kmalloc should free the allocated data.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
(
x->f1 = E
|
 (x->f1 == NULL || ...)
|
 f(...,x->f1,...)
)
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agodrivers/staging/intel_sst/intel_sst_app_interface.c: introduce missing kfree
Julia Lawall [Fri, 1 Apr 2011 14:23:45 +0000 (16:23 +0200)]
drivers/staging/intel_sst/intel_sst_app_interface.c: introduce missing kfree

Stream_bufs is initialized at the beginning of the function, and then the
#ifdef code declares a new variable with the same name and initializes
that.  If the if in the ifdef is taken, the then branch returns, implying
that the first stream_bufs is never used and is leaked.  The first
initialization is thus moved down after the ifdef.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
(
x->f1 = E
|
 (x->f1 == NULL || ...)
|
 f(...,x->f1,...)
)
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agodrivers/staging/brcm80211/brcmfmac/wl_iw.c: introduce missing kfree
Julia Lawall [Fri, 1 Apr 2011 14:23:42 +0000 (16:23 +0200)]
drivers/staging/brcm80211/brcmfmac/wl_iw.c: introduce missing kfree

Error handling code following a kmalloc should free the allocated data.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
(
x->f1 = E
|
 (x->f1 == NULL || ...)
|
 f(...,x->f1,...)
)
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: brcm80211: separate hndpmu functionality for brcmsmac driver
Arend van Spriel [Thu, 31 Mar 2011 13:56:13 +0000 (15:56 +0200)]
staging: brcm80211: separate hndpmu functionality for brcmsmac driver

The hndpmu source file has functions for brcmfmac and brcmsmac driver
but it turns out that on function level there is no reuse so for
the brcmsmac its set of functions now reside in wlc_pmu.c.

Reviewed-by: Henry Ptasinski <henryp@broadcom.com>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: brcm80211: removed ASSERTs in LCN phy code
Roland Vossen [Wed, 30 Mar 2011 10:16:00 +0000 (12:16 +0200)]
staging: brcm80211: removed ASSERTs in LCN phy code

Code cleanup. Driver contains far too many ASSERTs. Bringing driver
more in line with Greg KH's guidelines.

Signed-off-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: brcm80211: removed duplicate WMM code
Roland Vossen [Wed, 30 Mar 2011 09:21:01 +0000 (11:21 +0200)]
staging: brcm80211: removed duplicate WMM code

By calling wlc_wme_setparams() from wlc_edcf_setparams(), duplicate
code in wlc_edcf_setparams() could be removed.

Signed-off-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: brcm80211: made overlapping WMM functions more similar
Roland Vossen [Wed, 30 Mar 2011 09:21:00 +0000 (11:21 +0200)]
staging: brcm80211: made overlapping WMM functions more similar

Code cleanup. Functions wlc_edcf_setparams() and
wlc_wme_setparams() duplicate code amongst each other. This commit
attempts to make life easier for the reviewer, by introducing non
functional changes that bring wlc_edcf_setparams() more in line
with wlc_wme_setparams(). As a result the subsequent commit can be
reviewed more easily.

Signed-off-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: brcm80211: cleanup of WMM related functions
Roland Vossen [Wed, 30 Mar 2011 09:20:59 +0000 (11:20 +0200)]
staging: brcm80211: cleanup of WMM related functions

Signed-off-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging/keucr: transport usb use pr_<level>
Cho, Yu-Chen [Fri, 1 Apr 2011 06:38:43 +0000 (14:38 +0800)]
staging/keucr: transport usb use pr_<level>

transport.c usb.c use pr_<level> for messages

Signed-off-by: Cho, Yu-Chen <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging/keucr: smilmain use pr_<level> for messages
Cho, Yu-Chen [Fri, 1 Apr 2011 06:38:42 +0000 (14:38 +0800)]
staging/keucr: smilmain use pr_<level> for messages

smilmain.c use pr_<level> for messages

Signed-off-by: Cho, Yu-Chen <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging/keucr: scsiglue use pr_<level> for messages
Cho, Yu-Chen [Fri, 1 Apr 2011 06:38:41 +0000 (14:38 +0800)]
staging/keucr: scsiglue use pr_<level> for messages

scsiglue.c use pr_<level> for messages

Signed-off-by: Cho, Yu-Chen <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging/keucr: msscsi use pr_<level> for messages
Cho, Yu-Chen [Fri, 1 Apr 2011 06:38:40 +0000 (14:38 +0800)]
staging/keucr: msscsi use pr_<level> for messages

msscsi.c use pr_<level> for messages

Signed-off-by: Cho, Yu-Chen <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: winbond: wb35tx.c: Fixed coding style
Karthigan Srinivasan [Thu, 31 Mar 2011 20:00:17 +0000 (15:00 -0500)]
Staging: winbond: wb35tx.c: Fixed coding style

issue.

Fixed coding style issue.

Signed-off-by: Karthigan Srinivasan <karthigan.srinivasan2@gmail.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging/easycap: revamp reset function
Tomas Winkler [Wed, 30 Mar 2011 10:15:30 +0000 (12:15 +0200)]
staging/easycap: revamp reset function

fix indentation and drop success statements printouts
that just causes code be less readable

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging:ft1000: Remove dead code in ft1000_hw.c
Marek Belisko [Mon, 28 Mar 2011 11:10:27 +0000 (13:10 +0200)]
staging:ft1000: Remove dead code in ft1000_hw.c

Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agostaging: crystalhd: remove unused typedef bc_bool_t
Nicolas Kaiser [Sun, 27 Mar 2011 15:48:53 +0000 (17:48 +0200)]
staging: crystalhd: remove unused typedef bc_bool_t

Remove unused typedef bc_bool_t.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Reviewed-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: rtl8712: redundant null check before kfree()
Alexander Beregalov [Sat, 26 Mar 2011 17:18:14 +0000 (20:18 +0300)]
Staging: rtl8712: redundant null check before kfree()

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: rts_pstor: redundant null check before kfree()
Alexander Beregalov [Sat, 26 Mar 2011 17:18:13 +0000 (20:18 +0300)]
Staging: rts_pstor: redundant null check before kfree()

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: rts_pstor: s/rtsx_alloc_dma_buf/kmalloc/
Alexander Beregalov [Sun, 27 Mar 2011 00:06:43 +0000 (04:06 +0400)]
Staging: rts_pstor: s/rtsx_alloc_dma_buf/kmalloc/

Replace rtsx_alloc_dma_buf() with kfree() back,
chip parameter is not used; remove casts.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: rts_pstor: s/rtsx_free_dma_buf/kfree/
Alexander Beregalov [Sat, 26 Mar 2011 17:18:11 +0000 (20:18 +0300)]
Staging: rts_pstor: s/rtsx_free_dma_buf/kfree/

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: sbe-2t3e3: redundant null check before kfree()
Alexander Beregalov [Sat, 26 Mar 2011 17:18:10 +0000 (20:18 +0300)]
Staging: sbe-2t3e3: redundant null check before kfree()

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: sbe-2t3e3: remove T3E3_USE_CONTIGMALLOC
Alexander Beregalov [Sat, 26 Mar 2011 17:18:09 +0000 (20:18 +0300)]
Staging: sbe-2t3e3: remove T3E3_USE_CONTIGMALLOC

This code looks useless, t3e3_contigmemory_size is neither declared
nor used anywhere else, as well as T3E3_USE_CONTIGMALLOC.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: convert hv network driver to hw_features
Michał Mirosław [Tue, 19 Apr 2011 10:43:20 +0000 (12:43 +0200)]
Staging: convert hv network driver to hw_features

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agohv: make vmbus_loglevel writeable
Olaf Hering [Sat, 16 Apr 2011 16:50:42 +0000 (18:50 +0200)]
hv: make vmbus_loglevel writeable

make /sys/module/hv_vmbus/parameters/vmbus_loglevel writeable by root.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agohv: pass integer to tasklet_init()
Olaf Hering [Sat, 16 Apr 2011 16:50:41 +0000 (18:50 +0200)]
hv: pass integer to tasklet_init()

tasklet_init() takes an integer, so use one right away.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agohv: pass u32 to process_chn_event()
Olaf Hering [Sat, 16 Apr 2011 16:50:40 +0000 (18:50 +0200)]
hv: pass u32 to process_chn_event()

Change types in vmbus_on_event() to u32 since the input is u32 as well.
Pass u32 to process_chn_event() instead of casting arg to void* and back.
Update printk to reflect type change.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agohv: Reduce indention in vmbus_on_event
Olaf Hering [Sat, 16 Apr 2011 16:50:39 +0000 (18:50 +0200)]
hv: Reduce indention in vmbus_on_event

Reduce indention in vmbus_on_event() by converting two
if (var) to if (!var)

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of blkvsc_check_events()
K. Y. Srinivasan [Wed, 6 Apr 2011 23:05:01 +0000 (16:05 -0700)]
Staging: hv: Get rid of blkvsc_check_events()

We don't support removable media in Hyper-V block driver.
Get rid of blkvsc_check_events() as it is efectively "dead code".

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_getgeo()
K. Y. Srinivasan [Wed, 6 Apr 2011 21:35:02 +0000 (14:35 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_getgeo()

Get rid of the forward declaration of blkvsc_getgeo() by moving the code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_open()
K. Y. Srinivasan [Wed, 6 Apr 2011 21:35:01 +0000 (14:35 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_open()

Get rid of the forward declaration of blkvsc_open() by moving the code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_check_events()
K. Y. Srinivasan [Wed, 6 Apr 2011 21:35:00 +0000 (14:35 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_check_events()

Get rid of the forward declaration of  blkvsc_check_events()
by moving the code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Get rid of the forward declaration of blkvsc_submit_request()
K. Y. Srinivasan [Wed, 6 Apr 2011 21:34:59 +0000 (14:34 -0700)]
Staging: hv: Get rid of the forward declaration of blkvsc_submit_request()

Get rid of the forward declaration of  blkvsc_submit_request() by moving the
code around.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Zero out the request structure on allocation
K. Y. Srinivasan [Wed, 6 Apr 2011 18:25:39 +0000 (11:25 -0700)]
Staging: hv: Zero out the request structure on allocation

As part of the cleanup of the I/O request structure, allocate them zeroed
out. This fixes a bug that was introduced in the patch-set titled:
Staging: hv: Cleanup-storage-drivers-phase-II.
A corrected version of this patch-set was sent out earlier, however
the earlier (buggy) version of this patch-set was already applied.
This patch fixes the problem.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: hv: Properly capture the error state
K. Y. Srinivasan [Wed, 6 Apr 2011 18:25:38 +0000 (11:25 -0700)]
Staging: hv: Properly capture the error state

Properly capture the error state after the completion of I/O. This fixes a bug
that was introduced in the patch-set titled:
Staging: hv: Cleanup-storage-drivers-phase-II.
A corrected version of this patch-set was sent out earlier, however
the earlier (buggy) version of this patch-set was already applied.
This patch fixes the problem.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoStaging: merge 2.6.39-rc4 into staging-next
Greg Kroah-Hartman [Tue, 19 Apr 2011 13:37:49 +0000 (06:37 -0700)]
Staging: merge 2.6.39-rc4 into staging-next

This handles the removal of the samsung-laptop driver and other
minor merge issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
13 years agoLinux 2.6.39-rc4
Linus Torvalds [Tue, 19 Apr 2011 04:26:00 +0000 (21:26 -0700)]
Linux 2.6.39-rc4

13 years agoMerge branch 'for-39-rc4' of git://codeaurora.org/quic/kernel/davidb/linux-msm
Linus Torvalds [Mon, 18 Apr 2011 22:44:29 +0000 (15:44 -0700)]
Merge branch 'for-39-rc4' of git://codeaurora.org/quic/kernel/davidb/linux-msm

* 'for-39-rc4' of git://codeaurora.org/quic/kernel/davidb/linux-msm:
  msm: timer: fix missing return value
  msm: Remove extraneous ffa device check

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Mon, 18 Apr 2011 20:29:03 +0000 (13:29 -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: xen-kbdfront - fix mouse getting stuck after save/restore
  Input: estimate number of events per packet
  Input: evdev - indicate buffer overrun with SYN_DROPPED
  Input: document event types and codes and their intended use
  Input: add KEY_IMAGES specifically for AL Image Browser
  Input: twl4030_keypad - fix potential NULL dereference in twl4030_kp_probe()
  Input: h3600_ts - fix error handling at connect
  Input: twl4030_keypad - avoid potential NULL-pointer dereference

13 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Mon, 18 Apr 2011 20:21:18 +0000 (13:21 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: add blk_run_queue_async
  block: blk_delay_queue() should use kblockd workqueue
  md: fix up raid1/raid10 unplugging.
  md: incorporate new plugging into raid5.
  md: provide generic support for handling unplug callbacks.
  md - remove old plugging code.
  md/dm - remove remains of plug_fn callback.
  md: use new plugging interface for RAID IO.
  block: drop queue lock before calling __blk_run_queue() for kblockd punt
  Revert "block: add callback function for unplug notification"
  block: Enhance new plugging support to support general callbacks

13 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Mon, 18 Apr 2011 19:24:24 +0000 (12:24 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/powermac: Build fix with SMP and CPU hotplug
  powerpc/perf_event: Skip updating kernel counters if register value shrinks
  powerpc: Don't write protect kernel text with CONFIG_DYNAMIC_FTRACE enabled
  powerpc: Fix oops if scan_dispatch_log is called too early
  powerpc/pseries: Use a kmem cache for DTL buffers
  powerpc/kexec: Fix regression causing compile failure on UP
  powerpc/85xx: disable Suspend support if SMP enabled
  powerpc/e500mc: Remove CPU_FTR_MAYBE_CAN_NAP/CPU_FTR_MAYBE_CAN_DOZE
  powerpc/book3e: Fix CPU feature handling on 64-bit e5500
  powerpc: Check device status before adding serial device
  powerpc/85xx: Don't add disabled PCIe devices

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
Linus Torvalds [Mon, 18 Apr 2011 19:24:05 +0000 (12:24 -0700)]
Merge git://git./linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (24 commits)
  Btrfs: fix free space cache leak
  Btrfs: avoid taking the chunk_mutex in do_chunk_alloc
  Btrfs end_bio_extent_readpage should look for locked bits
  Btrfs: don't force chunk allocation in find_free_extent
  Btrfs: Check validity before setting an acl
  Btrfs: Fix incorrect inode nlink in btrfs_link()
  Btrfs: Check if btrfs_next_leaf() returns error in btrfs_real_readdir()
  Btrfs: Check if btrfs_next_leaf() returns error in btrfs_listxattr()
  Btrfs: make uncache_state unconditional
  btrfs: using cached extent_state in set/unlock combinations
  Btrfs: avoid taking the trans_mutex in btrfs_end_transaction
  Btrfs: fix subvolume mount by name problem when default mount subvolume is set
  fix user annotation in ioctl.c
  Btrfs: check for duplicate iov_base's when doing dio reads
  btrfs: properly handle overlapping areas in memmove_extent_buffer
  Btrfs: fix memory leaks in btrfs_new_inode()
  Btrfs: check for duplicate iov_base's when doing dio reads
  Btrfs: reuse the extent_map we found when calling btrfs_get_extent
  Btrfs: do not use async submit for small DIO io's
  Btrfs: don't split dio bios if we don't have to
  ...

13 years agoproc: do proper range check on readdir offset
Linus Torvalds [Mon, 18 Apr 2011 17:36:54 +0000 (10:36 -0700)]
proc: do proper range check on readdir offset

Rather than pass in some random truncated offset to the pid-related
functions, check that the offset is in range up-front.

This is just cleanup, the previous commit fixed the real problem.

Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agonext_pidmap: fix overflow condition
Linus Torvalds [Mon, 18 Apr 2011 17:35:30 +0000 (10:35 -0700)]
next_pidmap: fix overflow condition

next_pidmap() just quietly accepted whatever 'last' pid that was passed
in, which is not all that safe when one of the users is /proc.

Admittedly the proc code should do some sanity checking on the range
(and that will be the next commit), but that doesn't mean that the
helper functions should just do that pidmap pointer arithmetic without
checking the range of its arguments.

So clamp 'last' to PID_MAX_LIMIT.  The fact that we then do "last+1"
doesn't really matter, the for-loop does check against the end of the
pidmap array properly (it's only the actual pointer arithmetic overflow
case we need to worry about, and going one bit beyond isn't going to
overflow).

[ Use PID_MAX_LIMIT rather than pid_max as per Eric Biederman ]

Reported-by: Tavis Ormandy <taviso@cmpxchg8b.com>
Analyzed-by: Robert Święcki <robert@swiecki.net>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoInput: xen-kbdfront - fix mouse getting stuck after save/restore
Igor Mammedov [Mon, 18 Apr 2011 17:17:17 +0000 (10:17 -0700)]
Input: xen-kbdfront - fix mouse getting stuck after save/restore

Mouse gets "stuck" after restore of PV guest but buttons are in working
condition.

If driver has been configured for ABS coordinates at start it will get
XENKBD_TYPE_POS events and then suddenly after restore it'll start getting
XENKBD_TYPE_MOTION events, that will be dropped later and they won't get
into user-space.

Regression was introduced by hunk 5 and 6 of
5ea5254aa0ad269cfbd2875c973ef25ab5b5e9db
("Input: xen-kbdfront - advertise either absolute or relative
coordinates").

Driver on restore should ask xen for request-abs-pointer again if it is
available. So restore parts that did it before 5ea5254.

Acked-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
[v1: Expanded the commit description]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
13 years agoInput: estimate number of events per packet
Jeff Brown [Mon, 18 Apr 2011 17:08:02 +0000 (10:08 -0700)]
Input: estimate number of events per packet

Calculate a default based on the number of ABS axes, REL axes,
and MT slots for the device during input device registration.

Signed-off-by: Jeff Brown <jeffbrown@android.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
13 years agoBtrfs: fix free space cache leak
Chris Mason [Mon, 18 Apr 2011 12:55:34 +0000 (08:55 -0400)]
Btrfs: fix free space cache leak

The free space caching code was recently reworked to
cache all the pages it needed instead of using find_get_page everywhere.

One loop was missed though, so it ended up leaking pages.  This fixes
it to use our page array instead of find_get_page.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoblock: add blk_run_queue_async
Christoph Hellwig [Mon, 18 Apr 2011 09:41:33 +0000 (11:41 +0200)]
block: add blk_run_queue_async

Instead of overloading __blk_run_queue to force an offload to kblockd
add a new blk_run_queue_async helper to do it explicitly.  I've kept
the blk_queue_stopped check for now, but I suspect it's not needed
as the check we do when the workqueue items runs should be enough.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
13 years agoblock: blk_delay_queue() should use kblockd workqueue
Jens Axboe [Mon, 18 Apr 2011 09:36:39 +0000 (11:36 +0200)]
block: blk_delay_queue() should use kblockd workqueue

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
13 years agomd: fix up raid1/raid10 unplugging.
NeilBrown [Mon, 18 Apr 2011 08:25:43 +0000 (18:25 +1000)]
md: fix up raid1/raid10 unplugging.

We just need to make sure that an unplug event wakes up the md
thread, which is exactly what mddev_check_plugged does.

Also remove some plug-related code that is no longer needed.

Signed-off-by: NeilBrown <neilb@suse.de>
13 years agomd: incorporate new plugging into raid5.
NeilBrown [Mon, 18 Apr 2011 08:25:43 +0000 (18:25 +1000)]
md: incorporate new plugging into raid5.

In raid5 plugging is used for 2 things:
 1/ collecting writes that require a bitmap update
 2/ collecting writes in the hope that we can create full
    stripes - or at least more-full.

We now release these different sets of stripes when plug_cnt
is zero.

Also in make_request, we call mddev_check_plug to hopefully increase
plug_cnt, and wake up the thread at the end if plugging wasn't
achieved for some reason.

Signed-off-by: NeilBrown <neilb@suse.de>
13 years agomd: provide generic support for handling unplug callbacks.
NeilBrown [Mon, 18 Apr 2011 08:25:42 +0000 (18:25 +1000)]
md: provide generic support for handling unplug callbacks.

When an md device adds a request to a queue, it can call
mddev_check_plugged.
If this succeeds then we know that the md thread will be woken up
shortly, and ->plug_cnt will be non-zero until then, so some
processing can be delayed.

If it fails, then no unplug callback is expected and the make_request
function needs to do whatever is required to make the request happen.

Signed-off-by: NeilBrown <neilb@suse.de>
13 years agomd - remove old plugging code.
NeilBrown [Mon, 18 Apr 2011 08:25:42 +0000 (18:25 +1000)]
md - remove old plugging code.

md has some plugging infrastructure for RAID5 to use because the
normal plugging infrastructure required a 'request_queue', and when
called from dm, RAID5 doesn't have one of those available.

This relied on the ->unplug_fn callback which doesn't exist any more.

So remove all of that code, both in md and raid5.  Subsequent patches
with restore the plugging functionality.

Signed-off-by: NeilBrown <neilb@suse.de>
13 years agomd/dm - remove remains of plug_fn callback.
NeilBrown [Mon, 18 Apr 2011 08:25:41 +0000 (18:25 +1000)]
md/dm - remove remains of plug_fn callback.

Now that unplugging is done differently, the unplug_fn callback is
never called, so it can be completely discarded.

Signed-off-by: NeilBrown <neilb@suse.de>
13 years agomd: use new plugging interface for RAID IO.
NeilBrown [Mon, 18 Apr 2011 08:25:41 +0000 (18:25 +1000)]
md: use new plugging interface for RAID IO.

md/raid submits a lot of IO from the various raid threads.
So adding start/finish plug calls to those so that some
plugging happens.

Signed-off-by: NeilBrown <neilb@suse.de>
13 years agoblock: drop queue lock before calling __blk_run_queue() for kblockd punt
Jens Axboe [Mon, 18 Apr 2011 07:59:55 +0000 (09:59 +0200)]
block: drop queue lock before calling __blk_run_queue() for kblockd punt

If we know we are going to punt to kblockd, we can drop the queue
lock before calling into __blk_run_queue() since it only does a
safe bit test and a workqueue call. Since kblockd needs to grab
this very lock as one of the first things it does, it's a good
optimization to drop the lock before waking kblockd.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
13 years agoRevert "block: add callback function for unplug notification"
Jens Axboe [Mon, 18 Apr 2011 07:54:05 +0000 (09:54 +0200)]
Revert "block: add callback function for unplug notification"

MD can't use this since it really requires us to be able to
keep more than a single piece of state for the unplug. Commit
048c9374 added the required support for MD, so get rid of this
now unused code.

This reverts commit f75664570d8b75469cc468f23c2b27220984983b.

Conflicts:

block/blk-core.c

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
13 years agoblock: Enhance new plugging support to support general callbacks
NeilBrown [Mon, 18 Apr 2011 07:52:22 +0000 (09:52 +0200)]
block: Enhance new plugging support to support general callbacks

md/raid requires an unplug callback, but as it does not uses
requests the current code cannot provide one.

So allow arbitrary callbacks to be attached to the blk_plug.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
13 years agopowerpc/powermac: Build fix with SMP and CPU hotplug
Benjamin Herrenschmidt [Mon, 18 Apr 2011 05:46:35 +0000 (15:46 +1000)]
powerpc/powermac: Build fix with SMP and CPU hotplug

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/perf_event: Skip updating kernel counters if register value shrinks
Eric B Munson [Fri, 15 Apr 2011 08:12:30 +0000 (08:12 +0000)]
powerpc/perf_event: Skip updating kernel counters if register value shrinks

Because of speculative event roll back, it is possible for some event coutners
to decrease between reads on POWER7.  This causes a problem with the way that
counters are updated.  Delta calues are calculated in a 64 bit value and the
top 32 bits are masked.  If the register value has decreased, this leaves us
with a very large positive value added to the kernel counters.  This patch
protects against this by skipping the update if the delta would be negative.
This can lead to a lack of precision in the coutner values, but from my testing
the value is typcially fewer than 10 samples at a time.

Signed-off-by: Eric B Munson <emunson@mgebm.net>
Cc: stable@kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Don't write protect kernel text with CONFIG_DYNAMIC_FTRACE enabled
Stefan Roese [Thu, 14 Apr 2011 23:49:53 +0000 (23:49 +0000)]
powerpc: Don't write protect kernel text with CONFIG_DYNAMIC_FTRACE enabled

This problem was noticed on an MPC855T platform. Ftrace did oops
when trying to write to the kernel text segment.

Many thanks to Joakim for finding the root cause of this problem.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc: Fix oops if scan_dispatch_log is called too early
Anton Blanchard [Thu, 7 Apr 2011 21:44:21 +0000 (21:44 +0000)]
powerpc: Fix oops if scan_dispatch_log is called too early

We currently enable interrupts before the dispatch log for the boot
cpu is setup. If a timer interrupt comes in early enough we oops in
scan_dispatch_log:

Unable to handle kernel paging request for data at address 0x00000010

...

.scan_dispatch_log+0xb0/0x170
.account_system_vtime+0xa0/0x220
.irq_enter+0x88/0xc0
.do_IRQ+0x48/0x230

The patch below adds a check to scan_dispatch_log to ensure the
dispatch log has been allocated.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: <stable@kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/pseries: Use a kmem cache for DTL buffers
Nishanth Aravamudan [Wed, 13 Apr 2011 19:45:59 +0000 (19:45 +0000)]
powerpc/pseries: Use a kmem cache for DTL buffers

PAPR specifies that DTL buffers can not cross AMS environments (aka CMO
in the PAPR) and can not cross a memory entitlement granule boundary
(4k). This is found in section 14.11.3.2 H_REGISTER_VPA of the PAPR.
kmalloc does not guarantee an alignment of the allocation, though,
beyond 8 bytes (at least in my understanding). Create a special kmem
cache for DTL buffers with the alignment requirement.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agopowerpc/kexec: Fix regression causing compile failure on UP
Paul Gortmaker [Wed, 13 Apr 2011 06:30:08 +0000 (06:30 +0000)]
powerpc/kexec: Fix regression causing compile failure on UP

Recent commit b987812b3fcaf70fdf0037589e5d2f5f2453e6ce caused
a compile failure on UP because a considerably large block
of the file was included within CONFIG_SMP, hence making a stub
function not exposed on UP builds when it needed to be.

Relocate the stub to the #else /* ! CONFIG_SMP */ section
and also annotate the relevant else/endif so that nobody
else falls into the same trap I did.

Reported-by: Michael Guntsche <mike@it-loops.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
13 years agoMerge remote branch 'kumar/merge' into merge
Benjamin Herrenschmidt [Mon, 18 Apr 2011 02:09:37 +0000 (12:09 +1000)]
Merge remote branch 'kumar/merge' into merge

13 years agoMerge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvar...
Linus Torvalds [Mon, 18 Apr 2011 00:37:02 +0000 (17:37 -0700)]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-algo-bit: Call pre/post_xfer for bit_test
  i2c: Improve deprecation warnings

13 years agoMerge branch 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 18 Apr 2011 00:36:45 +0000 (17:36 -0700)]
Merge branch 's5p-fixes-for-linus' of git://git./linux/kernel/git/kgene/linux-samsung

* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: SAMSUNG: Fix warning 's3c_pm_show_resume_irqs' defined but not used
  ARM: SAMSUNG: Fix build failure in PM CRC check code
  ARM: S5P: Remove unused s3c_pm_check_resume_pin

13 years agoalpha: Fix uninitialized value in read_persistent_clock.
Richard Henderson [Sun, 17 Apr 2011 20:05:26 +0000 (13:05 -0700)]
alpha: Fix uninitialized value in read_persistent_clock.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoalpha: Fix RTC interrupt setup.
Richard Henderson [Sun, 17 Apr 2011 20:05:25 +0000 (13:05 -0700)]
alpha: Fix RTC interrupt setup.

Following commit 091738a266fc ("genirq: Remove real old transition
functions") we removed an automatic conversion of no_irq_chip to
dummy_irq_chip.  This change needs to be propagated back into the alpha
backend.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoalpha: Remove set but unused variables.
Richard Henderson [Sun, 17 Apr 2011 20:05:24 +0000 (13:05 -0700)]
alpha: Remove set but unused variables.

This is a new warning in gcc 4.6.  Several of these variables are
used within #if 0 code, which probably ought to be removed.  Most
of the changes are legitimate cleanups.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoalpha: Don't force -Werror.
Richard Henderson [Sun, 17 Apr 2011 20:05:23 +0000 (13:05 -0700)]
alpha: Don't force -Werror.

There are outstanding gcc 4.6 warnings that need to be cleaned up
in the subdirectory.  No sense forcing the issue immediately.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>