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505,617 commits

Author SHA1 Message Date
Howard Chen
931ca3c5cd dt-bindings: add mt6592 compatible string for mediatek sysirq
This patch adds a compatible string for mt6592 SoC to the dts documentation of
mediateks sysirq.

Signed-off-by: Howard Chen <howard.chen@linaro.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-01-08 13:21:46 +01:00
Howard Chen
c6b3a64f70 ARM: mediatek: Add sysirq device node to mt6592 dtsi
Add sysirq node to mt6592.dtsi and also correct timer interrupt flag.
The old setting works because boot loader already set it.
With a sysirq device node, the timer interrupt can use a correct value.

Signed-off-by: Howard Chen <howard.chen@linaro.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-01-08 13:06:54 +01:00
Ard Biesheuvel
0e63ea48b4 arm64/efi: add missing call to early_ioremap_reset()
The early ioremap support introduced by patch bf4b558eba
("arm64: add early_ioremap support") failed to add a call to
early_ioremap_reset() at an appropriate time. Without this call,
invocations of early_ioremap etc. that are done too late will go
unnoticed and may cause corruption.

This is exactly what happened when the first user of this feature
was added in patch f84d02755f ("arm64: add EFI runtime services").
The early mapping of the EFI memory map is unmapped during an early
initcall, at which time the early ioremap support is long gone.

Fix by adding the missing call to early_ioremap_reset() to
setup_arch(), and move the offending early_memunmap() to right after
the point where the early mapping of the EFI memory map is last used.

Fixes: f84d02755f ("arm64: add EFI runtime services")
Cc: <stable@vger.kernel.org>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-01-08 11:57:04 +00:00
Kristian Evensen
ae406bd057 netfilter: conntrack: Remove nf_ct_conntrack_flush_report
The only user of nf_ct_conntrack_flush_report() was ctnetlink_del_conntrack().
After adding support for flushing connections with a given mark, this function
is no longer called.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-01-08 12:16:58 +01:00
Kristian Evensen
866476f323 netfilter: conntrack: Flush connections with a given mark
This patch adds support for selective flushing of conntrack mappings.
By adding CTA_MARK and CTA_MARK_MASK to a delete-message, the mark (and
mask) is checked before a connection is deleted while flushing.

Configuring the flush is moved out of ctnetlink_del_conntrack(), and
instead of calling nf_conntrack_flush_report(), we always call
nf_ct_iterate_cleanup().  This enables us to only make one call from the
new ctnetlink_flush_conntrack() and makes it easy to add more filter
parameters.

Filtering is done in the ctnetlink_filter_match()-function, which is
also called from ctnetlink_dump_table(). ctnetlink_dump_filter has been
renamed ctnetlink_filter, to indicated that it is no longer only used
when dumping conntrack entries.

Moreover, reject mark filters with -EOPNOTSUPP if no ct mark support is
available.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-01-08 12:14:20 +01:00
Eddie Huang
ac00aa4dcd ARM: mediatek: dts: Add UART dts for MT8127 and MT8135 boards
This patch enable UART for MT8127 moose board and MT8135 evalution board.
Adding the dts, these two boards can show log and shell prompts.

Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-01-08 12:12:43 +01:00
Daniel Borkmann
8155330aad lib: memzero_explicit: add comment for its usage
Lets improve the comment to add a note on when to use memzero_explicit()
for those not digging through the git logs. We don't want people to
pollute places with memzero_explicit() where it's not really necessary.

Reference: https://lkml.org/lkml/2015/1/4/190
Suggested-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-01-08 21:46:19 +11:00
Herbert Xu
ad511e260a crypto: qat - Fix incorrect uses of memzero_explicit
memzero_explicit should only be used on stack variables that get
zapped just before they go out of scope.

This patch replaces all unnecessary uses of memzero_explicit with
memset, removes two memzero_explicit calls altogether as the tfm
context comes pre-zeroed, and adds a missing memzero_explicit of
the stack variable buff in qat_alg_do_precomputes.  The memzeros
on ipad/opad + digest_size/auth_keylen are also removed as the
entire auth_state is already zeroed on entry.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Tadeusz Struk <tadeusz.struk@intel.com>
2015-01-08 21:46:19 +11:00
Stephan Mueller
15acabfd02 crypto: aead - add check for presence of auth tag
The AEAD decryption operation requires the authentication tag to be
present as part of the cipher text buffer. The added check verifies that
the caller provides a cipher text with at least the authentication tag.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-01-08 21:46:18 +11:00
Asaf Vertz
42d2e780c6 crypto: omap-des - fix BUG_ON condition
dd->total is unsigned so it won't do any good to check for negative
value after subtracting instead of that we should check if the
subtracted value is bigger than him

This was partially found by using a static code analysis program
called cppcheck.

Signed-off-by: Asaf Vertz <asaf.vertz@tandemg.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-01-08 21:46:17 +11:00
Jianqun Xu
a12d159d06 ASoC: rockchip: i2s: applys rate symmetry for CPU DAI
This patch applys rate symmetry for rockchip i2s DAI.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-08 10:22:00 +00:00
Sudeep Holla
d97d929f06 s390: move cacheinfo sysfs to generic cacheinfo infrastructure
This patch removes the redundant sysfs cacheinfo code by reusing
the newly introduced generic cacheinfo infrastructure through the
commit 246246cbde ("drivers: base: support cpu cache information
interface to userspace via sysfs")

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-01-08 10:02:54 +01:00
Chen Gang
e6a67ad0e2 s390/crypto: remove 'const' to avoid compiler warnings
In aes_encrypt() and aes_decrypt(), need let 'sctx->key' be modified,
so remove 'const' for it. The related warnings:

    CC [M]  arch/s390/crypto/aes_s390.o
  arch/s390/crypto/aes_s390.c: In function 'aes_encrypt':
  arch/s390/crypto/aes_s390.c:146:37: warning: passing argument 2 of 'crypt_s390_km' discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers]
     crypt_s390_km(KM_AES_128_ENCRYPT, &sctx->key, out, in,
                                       ^
  ...

  In file included from arch/s390/crypto/aes_s390.c:29:0:
  arch/s390/crypto/crypt_s390.h:154:19: note: expected 'void *' but argument is of type 'const u8 (*)[32] {aka const unsigned char (*)[32]}'
   static inline int crypt_s390_km(long func, void *param,
                     ^

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-01-08 10:02:53 +01:00
Joe Perches
91c0837e6d s390: remove unnecessary KERN_CONT
This has no effect as KERN_CONT is an empty string,

It's probably just a missing conversion artifact as the
other pr_cont uses in the same file don't have this prefix.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-01-08 10:02:52 +01:00
Heiko Carstens
a7e75d434b s390/sclp: sign extend return value of _sclp_print_early()
_sclp_print_early() has a return value, but misses to sign extend it
if called from 64 bit code.
This is not really a bug, since currently no caller cares what the
return value is.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-01-08 10:02:52 +01:00
Chen Gang
fbf87dff67 s390/sclp: fix declaration of _sclp_print_early()
_sclp_print_early() has return value: at present, return 0 for OK, 1 for
failure. It returns '%r2', so use 'long' as return value (upper caller
can check '%r2' directly). The related warning:

    CC      arch/s390/boot/compressed/misc.o
  arch/s390/boot/compressed/misc.c:66:8: warning: type defaults to 'int' in declaration of '_sclp_print_early' [-Wimplicit-int]
   extern _sclp_print_early(const char *);
          ^

At present, _sclp_print_early() is only used by puts(), so can still
remain its declaration in 'misc.c' file.

[heiko.carstens@de.ibm.com]: move declaration to sclp.h header file

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-01-08 10:02:51 +01:00
Heiko Carstens
47523c983f s390: keep Kconfig sorted
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-01-08 10:02:50 +01:00
Rickard Strandqvist
8ebd51a705 s390/cio: idset.c: remove some unused functions
Removes some functions that are not used anywhere:
idset_clear() idset_sch_get_first()

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-01-08 10:02:50 +01:00
Heiko Carstens
e0a5054548 s390/signal: add sys_sigreturn and sys_rt_sigreturn declarations
Get rid of sparse warnings like this one:
arch/s390/kernel/signal.c:244:1:
  warning: symbol 'sys_sigreturn' was not declared. Should it be static?

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2015-01-08 10:02:49 +01:00
Heiko Carstens
925dfc020a s390/pgtable: add unsigned long casts
Get rid of warnings like this one:
warning: constant 0xffe0000000000000 is so big it is unsigned long

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2015-01-08 10:02:48 +01:00
Heiko Carstens
8d1f211ebb s390/disassembler: remove indentical initializer
Remove one of the two identical initializer entries.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2015-01-08 10:02:47 +01:00
Heiko Carstens
eba8452525 s390/pci: add missing address space annotation
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2015-01-08 10:02:47 +01:00
Heiko Carstens
58498ee3e5 s390/ftrace: add code replacement sanity checks
Always verify that the to be replaced code matches what we expect to see.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-01-08 10:02:46 +01:00
Martin Schwidefsky
fbc89c952f s390/mm: avoid using pmd_to_page for !USE_SPLIT_PMD_PTLOCKS
pmd_to_page() is only available if USE_SPLIT_PMD_PTLOCKS is defined.
The use of pmd_to_page in the gmap code can cause compile errors if
NR_CPUS is smaller than SPLIT_PTLOCK_CPUS. Do not use pmd_to_page
outside of USE_SPLIT_PMD_PTLOCKS sections.

Reported-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-01-08 10:02:18 +01:00
Soren Brinkmann
1643b31658 ARM: zynq: DT: Add USB to device tree
Add USB nodes to zc702, zc706 and zed device trees.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 09:35:04 +01:00
Tvrtko Ursulin
7226572d8e drm/i915: Reserve shadow batch VMA analogue to others
If not pinned VMA can become an eviction target just before it needs to be
executed which breaks the internal object lifetime rules.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87399
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-01-08 09:34:58 +01:00
Ingo Molnar
ed9eb845d7 perf/urgent fixes:
- 'perf probe' should fall back to find probe point in symbols when failing
   to do so in a debuginfo file (Masami Hiramatsu)
 
 - Fix 'perf probe' crash in dwarf_getcfi_elf (Namhyung Kim)
 
 - Fix shell completion with 'perf list' --raw-dump option (Taesoo Kim)
 
 - Fix 'perf diff' to sort by baseline field by default (Namhyung Kim)
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

"
  - 'perf probe' should fall back to find probe point in symbols when failing
    to do so in a debuginfo file (Masami Hiramatsu)

  - Fix 'perf probe' crash in dwarf_getcfi_elf (Namhyung Kim)

  - Fix shell completion with 'perf list' --raw-dump option (Taesoo Kim)

  - Fix 'perf diff' to sort by baseline field by default (Namhyung Kim)
"

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-01-08 08:59:22 +01:00
Michael S. Tsirkin
132d5dfc04 microblaze: whitespace fix
Align using tabs to make code prettier.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 08:37:25 +01:00
Michael S. Tsirkin
0774bf6a8b microblaze/uaccess: fix sparse errors
virtio wants to read bitwise types from userspace using get_user.  At the
moment this triggers sparse errors, since the value is passed through an
integer.

Fix that up using __force.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 08:37:24 +01:00
Soren Brinkmann
231856ae7c microblaze: intc: Reformat output
A message was using pr_info level output for a message including "ERROR"
which is not really a fatal error.
Remove the 'ERROR' from that message, use pr_warn loglevel and add the
function name to the output to give users a chance to find the culprit
in case the warning triggers.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 08:37:24 +01:00
Soren Brinkmann
d50466c907 microblaze: intc: Refactor DT sanity check
Avoid funky casts and arithmetic.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 08:37:23 +01:00
Soren Brinkmann
2c80a072a6 microblaze: intc: Don't override error codes
Just pass on error codes instead of overriding them.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 08:37:22 +01:00
Michal Simek
ed89466f23 microblaze: Add target architecture
Add missing target architectures - virtex7, ultrascale virtex
and ultrascale kintex.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 08:37:22 +01:00
Erico Nunes
81653edd99 microblaze: Add missing PVR version codes
PVR version code was missing in the cpu_ver_lookup table for the following
versions: 8.50.b 8.50.c 9.2 9.3

This caused /proc/cpuinfo to display "CPU-Ver: Unknown" for these versions.

This was detected and the patch tested with MicroBlaze version 8.50.c.
The other codes were taken from the Xilinx MicroBlaze Processor Reference
Guides UG081 (v14.7) and UG984 (v2014.1).

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 08:37:21 +01:00
Michal Simek
ed4602e13f microblaze: Fix variable types to remove W=1 warning
This patch removes this warning:
arch/microblaze/kernel/signal.c: In function 'setup_rt_frame':
arch/microblaze/kernel/signal.c:177:3: warning: signed and unsigned type
in conditional expression [-Wsign-compare]

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 08:37:21 +01:00
Michal Simek
2558cd8cab microblaze: Use unsigned type for limit comparison in cache.c
The patch removes warnings:
arch/microblaze/kernel/cpu/cache.c:146:14: warning: comparison of
unsigned expression < 0 is always false [-Wtype-limits]

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-08 08:37:16 +01:00
Paul Bonser
e9f4936972 ALSA: usb-audio: Add support for Akai MPC Element USB MIDI controller
The Akai MPC Element incorrectly reports its bInterfaceClass as 255, but
otherwise implements the USB MIDI spec correctly.

This adds a quirks-table.h entry which allows the device to be
recognized as a standard USB MIDI device.

Signed-off-by: Paul Bonser <misterpib@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-08 08:26:12 +01:00
Andy Shevchenko
3db084fd0a ALSA: fm801: PCI core handles power state for us
There is no need to repeat the work that is already done in the PCI
driver core. The patch removes excerpts from suspend and resume
callbacks.

Note that there is no more calls performed to enable or disable a PCI
device during suspend-resume cycle. Nowadays they seems to be
superflous. Someone can read more in [1].

[1] https://www.kernel.org/doc/ols/2009/ols2009-pages-319-330.pdf

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-08 08:25:38 +01:00
Alexander Aring
52d84ffc54 ieee802154: 6lowpan: rename to core
This patch renames the 6lowpan_rtnl.c file to core.c. 6lowpan_rtnl.c
contains functionality to put all 802.15.4 6LoWPAN functionality
together.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-08 07:25:59 +01:00
Alexander Aring
4dc315e267 ieee802154: 6lowpan: move transmit functionality
This patch moves all relevant transmit functionality into a separate tx.c
file. We can simple separate this functionality like we did it in mac802154.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-08 07:25:59 +01:00
Alexander Aring
4662a0da54 ieee802154: 6lowpan: move receive functionality
This patch moves all relevant receive functionality into a separate rx.c
file. We can simple separate this functionality like we did it in mac802154.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-08 07:25:59 +01:00
Alexander Aring
8691ee592c ieee802154: 6lowpan: rename internal header
This patch renames the internal header for af802154. This naming
convention is like ieee802154_i.h in mac802154 and avoids naming
confusing with the global af802154 header. Furthermore this header
contains more ieee802154 specific definitions.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-08 07:25:59 +01:00
Alexander Aring
ea81ac2e70 ieee802154: create 6lowpan sub-directory
This patch creates an 6lowpan sub-directory inside ieee802154.
Additional we move all ieee802154 6lowpan relevant files into
this sub-directory instead of placing the 6lowpan related files
inside ieee802154.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-08 07:25:59 +01:00
Amitkumar Karwar
a9cc32d96c Bluetooth: btmrvl: fix card reset and suspend race issue
Sometimes suspend thread queues a command and wait for it's
response, meanwhile WLAN driver power cycles the card which
leads to crash. This patch makes sure that suspend thread is
woken up in remove path.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-08 06:36:50 +01:00
Amitkumar Karwar
0333d6dd3b Bluetooth: btmrvl: use msecs_to_jiffies within macro definition
This change improves readability and fixes allignment problem.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-08 06:36:50 +01:00
Michel Dänzer
6ee0ad2a7f drm/amdkfd: Drop interrupt SW ring buffer
The work queue couldn't reliably prevent the SW ring buffer from
overflowing, so dmesg was spammed by

 kfd kfd: Interrupt ring overflow, dropping interrupt.

messages when running e.g. the Atlantis Substance demo from
https://wiki.unrealengine.com/Linux_Demos on Kaveri.

Since the SW ring buffer doesn't actually do anything at this point, just
remove it for now. When actual interrupt processing code is added to
amdkfd, it should try to do things immediately and only defer to work
queues when necessary.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
2015-01-08 13:27:15 +09:00
Borislav Petkov
26e022727f efi: Rename efi_guid_unparse to efi_guid_to_str
Call it what it does - "unparse" is plain-misleading.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
2015-01-07 19:07:44 -08:00
Peter Jones
0e4ca02b3f efi: Update the URLs for efibootmgr
Matt Domsch changed the dell page to point to the new upstream quite
some time ago; kernel should reflect that here as well.

Cc: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
2015-01-07 19:06:28 -08:00
Scott Branden
72ea403669 mtd: nand: added nand_shutdown
Add nand_shutdown to wait for current nand operations to finish and prevent
further operations by changing the nand flash state to FL_SHUTDOWN.

This is addressing a problem observed during reboot tests using UBIFS
root file system: NAND erase operations that are in progress during
system reboot/shutdown are causing partial erased blocks. Although UBI should
be able to detect and recover from this error, this change will avoid
the creation of partial erased blocks on reboot in the middle of a NAND erase
operation.

Signed-off-by: Scott Branden <sbranden@broadcom.com>
Tested-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-01-07 17:54:28 -08:00
Brian Norris
3efe41be22 mtd: implement common reboot notifier boilerplate
cfi_cmdset_000{1,2}.c already implement their own reboot notifiers, and
we're going to add one for NAND. Let's put the boilerplate in one place.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Tested-by: Scott Branden <sbranden@broadcom.com>
2015-01-07 17:54:22 -08:00