Add suspend/resume hooks for HID drivers so these can do some
additional state adjustment when device gets suspended/resumed.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Fix compiler error in copypage-fs.c
missing struct vm_area_struct *vma in function
fa_copy_user_highpage
Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Move PLL enable from BIAS_ON state to BIAS_PREPARE to be pair with
BIAS_STANDBY where PLL is disabled. Remove also old comments about power
control.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
These ADC, DAC and output pin power off commands are needless in
aic3x_set_bias_level since they are not enabled in aic3x_init and they are
defined in aic3x_dapm_widgets so the ASoC DAPM will take care of them
anyway.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Currently, device claiming for exclusive open is done after low level
open - disk->fops->open() - has completed successfully. This means
that exclusive open attempts while a device is already exclusively
open will fail only after disk->fops->open() is called.
cdrom driver issues commands during open() which means that O_EXCL
open attempt can unintentionally inject commands to in-progress
command stream for burning thus disturbing burning process. In most
cases, this doesn't cause problems because the first command to be
issued is TUR which most devices can process in the middle of burning.
However, depending on how a device replies to TUR during burning,
cdrom driver may end up issuing further commands.
This can't be resolved trivially by moving bd_claim() before doing
actual open() because that means an open attempt which will end up
failing could interfere other legit O_EXCL open attempts.
ie. unconfirmed open attempts can fail others.
This patch resolves the problem by introducing claiming block which is
started by bd_start_claiming() and terminated either by bd_claim() or
bd_abort_claiming(). bd_claim() from inside a claiming block is
guaranteed to succeed and once a claiming block is started, other
bd_start_claiming() or bd_claim() attempts block till the current
claiming block is terminated.
bd_claim() can still be used standalone although now it always
synchronizes against claiming blocks, so the existing users will keep
working without any change.
blkdev_open() and open_bdev_exclusive() are converted to use claiming
blocks so that exclusive open attempts from these functions don't
interfere with the existing exclusive open.
This problem was discovered while investigating bko#15403.
https://bugzilla.kernel.org/show_bug.cgi?id=15403
The burning problem itself can be resolved by updating userspace
probing tools to always open w/ O_EXCL.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Matthias-Christian Ott <ott@mirix.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Factor out bd_may_claim() from bd_claim(), add comments and apply a
couple of cosmetic edits. This is to prepare for further updates to
claim path.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Make hidraw not stick an extra byte on the beginning of an IN transfer
when a HID device contains multiple reports.
Signed-off-by: Alan Ott <alan@signal11.us>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
commit 42747d712d ("[WATCHDOG] watchdog_info
constify") introduced the following build failure:
CC booke_wdt.o
booke_wdt.c: In function 'booke_wdt_init':
booke_wdt.c:220: error: assignment of read-only variable 'ident'
Fix this by removing 'const' qualifier from watchdog_info struct.
Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
They will be holding dirty inodes and be responsible for flushing
them out, so they need to be setup properly.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Removes one .h and one .c file that are never used outside of
mtdcore.c.
Signed-off-by: Joern Engel <joern@logfs.org>
Edited to remove on leftover debug define.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
The UP dependency was inherited from ARM, which seems to have run in to
it due to the stacktrace code not being available for SMP in certain
cases, as we don't have this particular limitation there is no specific
need to block on the SMP dependency.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This addresses: https://bugzilla.kernel.org/show_bug.cgi?id=14998
We copy some strings into "event" but we leave the space after the NULL
terminators uninitialized. Later in acpi_bus_receive_event() we copy
the whole struct to another buffer with memcpy(). If the new buffer is
stored on the stack, kmemcheck prints a warning about the unitialized
space after the NULL terminators.
It's true that the space is uninitialized, but it's harmless. The
buffer is only used in acpi_system_read_event() and we don't read past
the NULL terminators.
This patch changes the kmalloc() to kzalloc() so that we initialize the
memory and silence the kmemcheck warning.
Reported-by: Christian Casteyde <casteyde.christian@free.fr>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
On lease break we were breaking to readonly leases always
even if write requested. Also removed experimental
ifdef around setlease code
Signed-off-by: Steve French <sfrench@us.ibm.com>
Previous reset code leaded to computer hard lockup (need to unplug
the power too reboot the computer) on various configuration. This
patch change the reset code to avoid hard lockup. The GPU reset
is failing most of the time but at least user can log in remotely
or properly shutdown the computer.
Two issues were leading to hard lockup :
- Writting to the scratch register lead to hard lockup most likely
because the write back mecanism is in fuzy state after GPU lockup.
- Resetting the GPU memory controller and not reinitializing it
after leaded to hard lockup. We did only reinitialize in case of
successfull reset thus unsuccessfull reset quickly leaded to hard
lockup.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Commit b4fe945405 ("drm/radeon: Fix
memory allocation failures in the preKMS command stream checking.")
added a regression in that it completely tossed the get_unaligned()
done by r300_scratch() which we added in commit
958a6f8ccb ("drm: radeon: Fix unaligned
access in r300_scratch().").
Put it back.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
When we call drm_vblank_off() at DPMS off time (to wake any clients so
they don't hang) we need to make sure interrupts are actually disabled.
If drm_vblank_off() gets called before the vblank usage timer expires,
it'll prevent the timer from disabling interrupts since it also clears
the vblank_enabled flag for the pipe.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The following commit broke CONFIG_RELOCATABLE support on FSL Book-E
parts:
commit 549e8152de
Author: Paul Mackerras <paulus@samba.org>
Date: Sat Aug 30 11:43:47 2008 +1000
powerpc: Make the 64-bit kernel as a position-independent executable
The change to __va and __pa to use PAGE_OFFSET & MEMORY_START causes
problems on the Book-E parts because we don't know MEMORY_START until
after we parse the device tree. We need __va to work properly to even
parse the device tree so we have a chicken an egg. So go back to using
he other definition of __va/__pa on CONFIG_BOOKE and use the
PAGE_OFFSET/MEMORY_START version on "Classic" PPC64.
Also updated casts to handle phys_addr_t being a different size from
unsigned long (ie 36-bit physical on PPC32).
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Change the credentials documentation to make it clear that the RCU read lock
must be explicitly held when accessing credentials pointers in some other task
than current. Holding a spinlock does not implicitly hold the RCU read lock.
Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
78f1cd0245 ("fix broken register writes")
does not work for Al Viro's r8169 (XID 18000000).
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When read_buf is called to move over to the next page in the pagelist
of an NFSv4 request, it sets argp->end to essentially a random
number, certainly not an address within the page which argp->p now
points to. So subsequent calls to READ_BUF will think there is much
more than a page of spare space (the cast to u32 ensures an unsigned
comparison) so we can expect to fall off the end of the second
page.
We never encountered thsi in testing because typically the only
operations which use more than two pages are write-like operations,
which have their own decoding logic. Something like a getattr after a
write may cross a page boundary, but it would be very unusual for it to
cross another boundary after that.
Cc: stable@kernel.org
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This is a typo, if pvolume_info were NULL it would oops.
This function is used in clean up and error handling. The current code
never passes a NULL pvolume_info, but it could pass a NULL *pvolume_info
if the kmalloc() failed.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
...since that more accurately describes what that variable holds.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
...it's mostly part of cifs_mount. Break it out into a separate
function.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Add a local_nls field to the smb_vol struct and keep a pointer to the
local_nls in it.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Even with commit 32dec5dd02 ("bridge
br_multicast: Don't refer to BR_INPUT_SKB_CB(skb)->mrouters_only
without IGMP snooping."), BR_INPUT_SKB_CB(skb)->mrouters_only is
not appropriately initialized if IGMP/MLD snooping support is
compiled and disabled, so we can see garbage.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Even with commit 32dec5dd02 ("bridge
br_multicast: Don't refer to BR_INPUT_SKB_CB(skb)->mrouters_only
without IGMP snooping."), BR_INPUT_SKB_CB(skb)->mrouters_only is
not appropriately initialized if IGMP snooping support is
compiled and disabled, so we can see garbage.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
spinlock need to be replaced by mutex because of sleep functions
inside wdt_send_data.
Signed-off-by: Denis Turischev <denis@compulab.co.il>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Add the same type of configurable debug messages to libertas_tf as
already exist in the libertas driver. This has facilitated creation
of a interface specification and will facilitate future development
of this driver.
Signed-off-by: Steve deRosier <steve@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Restore the rfcsr initialization for RT305x SoC devices which was removed
by "rt2x00: Finish rt3070 support in rt2800 register initialization.".
This fixes the rx path on SoC devices.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fix a typo in a comment in rt2800.h. Instead of replacing the wrong
hexvalue (0x171c) with the correct one (0x1718) just use the appropriate
readable define.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
In kernel Bugzilla #15825, a case where routine ssb_bus_pcibus_register()
fails silently is reported. The cause for the failure is still being
investigated; however, the diagnosis would be easier if the failure
had been reported.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Disable HT40 support for now as it causes rx problems with HT40 capable
11n APs (when mac80211 enables HT40, rx is completely disfunctional).
Once the rt2800 HT code is capable of using HT40 we should enable the
flag again.
I only tested this patch with a rt305x SoC device, nevertheless the
patch disables HT40 also on PCI and USB rt2800 devices.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
