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With the newer compilers, size_t and ssize_t are expected to be (un)signed int
rather than (un)signed long.
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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A change to the RTC routines in the MN10300 arch used set_rtc_mms() when it
meant set_rtc_mmss(). This results in an error due to a reference of an
undefined symbol.
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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pcc_cpu_info is a percpu pointer but was missing __percpu markup.
Add it.
Signed-off-by: Namhyung Kim <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Signed-off-by: Dave Jones <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Fix rwsem: RWSEM_WAITING_BIAS must not be unsigned.
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (55 commits)
io-mapping: move asm include inside the config option
vgaarb: drop vga.h include
drm/radeon: Add probing of clocks from device-tree
drm/radeon: drop old and broken mesa warning
drm/radeon: Fix pci_map_page() error checking
drm: Remove count_lock for calling lastclose() after 58474713 (v2)
drm/radeon/kms: allow FG_ALPHA_VALUE on r5xx
drm/radeon/kms: another r6xx/r7xx CS checker fix
DRM: Replace kmalloc/memset combos with kzalloc
drm: expand gamma_set
drm/edid: Split mode lists out to their own header for readability
drm/edid: Rewrite mode parse to use the generic detailed block walk
drm/edid: Add detailed block walk for VTB extensions
drm/edid: Add detailed block walk for CEA extensions
drm: Remove unused fields from drm_display_info
drm: Use ENOENT consistently for the error return for an unmatched handle.
drm/radeon/kms: mark 3D power states as performance
drm: Only set DPMS once on the CRTC not after every encoder.
drm/radeon/kms: add additional quirk for Acer rv620 laptop
drm: Propagate error code from fb_create()
...
Fix up trivial conflicts in drivers/gpu/drm/drm_edid.c
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Some nice improvements were made to rwsem in commit:
424acaaeb3a3932d64a9b4bd59df6cf72c22d8f3
rwsem: wake queued readers when writer blocks on active read lock
but this change overlooked that ia64 had defined RWSEM_WAITING_BIAS
as an unsigned value, while the new code required a signed value (as
it is in every other architecture).
This fix suggested by the original patch author: Michel Lespinasse.
Signed-off-by: Tony Luck <[email protected]>
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* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
mmc_spi: Fix unterminated of_match_table
of/sparc: fix build regression from of_device changes
of/device: Replace struct of_device with struct platform_device
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
x86: Detect whether we should use Xen SWIOTLB.
pci-swiotlb-xen: Add glue code to setup dma_ops utilizing xen_swiotlb_* functions.
swiotlb-xen: SWIOTLB library for Xen PV guest with PCI passthrough.
xen/mmu: inhibit vmap aliases rather than trying to clear them out
vmap: add flag to allow lazy unmap to be disabled at runtime
xen: Add xen_create_contiguous_region
xen: Rename the balloon lock
xen: Allow unprivileged Xen domains to create iomap pages
xen: use _PAGE_IOMAP in ioremap to do machine mappings
Fix up trivial conflicts (adding both xen swiotlb and xen pci platform
driver setup close to each other) in drivers/xen/{Kconfig,Makefile} and
include/xen/xen-ops.h
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mspro_block_remove() is called from detect thread that first calls the
mspro_block_stop(), which stops the request queue. If we call
del_gendisk() with the queue stopped we get a deadlock.
Signed-off-by: Maxim Levitsky <[email protected]>
Cc: Alex Dubov <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Otherwise lockdep complains.
Signed-off-by: Maxim Levitsky <[email protected]>
Cc: Alex Dubov <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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- Fix mmc_test_alloc_mem.
- Use nr_free_buffer_pages() instead of sysinfo.totalram to determine
total lowmem pages.
- Change variables containing memory sizes to unsigned long.
- Limit maximum test area size to 128MiB because that is the maximum MMC
high capacity erase size (the maxmium SD allocation unit size is just
4MiB)
Signed-off-by: Adrian Hunter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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mmc_test provides tests aimed at testing SD/MMC hosts. This patch adds
performance tests.
It is advantageous to have performance tests in a kernel
module like mmc_test for the following reasons:
- transfer times can be measured very accurately
- arbitrarily large transfers are possible
- the effect of contiguous vs scattered pages
can be determined
The new tests are:
23. Best-case read performance
24. Best-case write performance
25. Best-case read performance into scattered pages
26. Best-case write performance from scattered pages
27. Single read performance by transfer size
28. Single write performance by transfer size
29. Single trim performance by transfer size
30. Consecutive read performance by transfer size
31. Consecutive write performance by transfer size
32. Consecutive trim performance by transfer size
Signed-off-by: Adrian Hunter <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Secure discard is implemented by Secure Trim if the discard is unaligned
or Secure Erase otherwise.
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Jens Axboe <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Madhusudhan Chikkature <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Ben Gardiner <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Secure discard is the same as discard except that all copies of the
discarded sectors (perhaps created by garbage collection) must also be
erased.
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Jens Axboe <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Madhusudhan Chikkature <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Ben Gardiner <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Disable the data (busy) timeout for erases and set the MMC_CAP_ERASE
capability.
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Jens Axboe <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Madhusudhan Chikkature <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Ben Gardiner <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Enable MMC to service discard requests. In the case of SD and MMC cards
that do not support trim, discards become erases. In the case of cards
(MMC) that only allow erases in multiples of erase group size, round to
the nearest completely discarded erase group.
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Jens Axboe <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Madhusudhan Chikkature <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Ben Gardiner <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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SD/MMC cards tend to support an erase operation. In addition, eMMC v4.4
cards can support secure erase, trim and secure trim operations that are
all variants of the basic erase command.
SD/MMC device attributes "erase_size" and "preferred_erase_size" have been
added.
"erase_size" is the minimum size, in bytes, of an erase operation. For
MMC, "erase_size" is the erase group size reported by the card. Note that
"erase_size" does not apply to trim or secure trim operations where the
minimum size is always one 512 byte sector. For SD, "erase_size" is 512
if the card is block-addressed, 0 otherwise.
SD/MMC cards can erase an arbitrarily large area up to and
including the whole card. When erasing a large area it may
be desirable to do it in smaller chunks for three reasons:
1. A single erase command will make all other I/O on the card
wait. This is not a problem if the whole card is being erased, but
erasing one partition will make I/O for another partition on the
same card wait for the duration of the erase - which could be a
several minutes.
2. To be able to inform the user of erase progress.
3. The erase timeout becomes too large to be very useful.
Because the erase timeout contains a margin which is multiplied by
the size of the erase area, the value can end up being several
minutes for large areas.
"erase_size" is not the most efficient unit to erase (especially for SD
where it is just one sector), hence "preferred_erase_size" provides a good
chunk size for erasing large areas.
For MMC, "preferred_erase_size" is the high-capacity erase size if a card
specifies one, otherwise it is based on the capacity of the card.
For SD, "preferred_erase_size" is the allocation unit size specified by
the card.
"preferred_erase_size" is in bytes.
Signed-off-by: Adrian Hunter <[email protected]>
Acked-by: Jens Axboe <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Madhusudhan Chikkature <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Ben Gardiner <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Commit 83ba7b071f3 ("writeback: simplify the write back thread queue")
broke writeback_in_progress() as in that commit we started to remove work
items from the list at the moment we start working on them and not at the
moment they are finished. Thus if the flusher thread was doing some work
but there was no other work queued, writeback_in_progress() returned
false. This could in particular cause unnecessary queueing of background
writeback from balance_dirty_pages() or writeout work from
writeback_sb_if_idle().
This patch fixes the problem by introducing a bit in the bdi state which
indicates that the flusher thread is processing some work and uses this
bit for writeback_in_progress() test.
NOTE: Both callsites of writeback_in_progress() (namely,
writeback_inodes_sb_if_idle() and balance_dirty_pages()) would actually
need a different information than what writeback_in_progress() provides.
They would need to know whether *the kind of writeback they are going to
submit* is already queued. But this information isn't that simple to
provide so let's fix writeback_in_progress() for the time being.
Signed-off-by: Jan Kara <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Wu Fengguang <[email protected]>
Acked-by: Jens Axboe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Unify the logic for kupdate and non-kupdate cases. There won't be
starvation because the inodes requeued into b_more_io will later be
spliced _after_ the remaining inodes in b_io, hence won't stand in the way
of other inodes in the next run.
It avoids unnecessary redirty_tail() calls, hence the update of
i_dirtied_when. The timestamp update is undesirable because it could
later delay the inode's periodic writeback, or may exclude the inode from
the data integrity sync operation (which checks timestamp to avoid extra
work and livelock).
===
How the redirty_tail() comes about:
It was a long story.. This redirty_tail() was introduced with
wbc.more_io. The initial patch for more_io actually does not have the
redirty_tail(), and when it's merged, several 100% iowait bug reports
arised:
reiserfs:
http://lkml.org/lkml/2007/10/23/93
jfs:
commit 29a424f28390752a4ca2349633aaacc6be494db5
JFS: clear PAGECACHE_TAG_DIRTY for no-write pages
ext2:
http://www.spinics.net/linux/lists/linux-ext4/msg04762.html
They are all old bugs hidden in various filesystems that become "visible"
with the more_io patch. At the time, the ext2 bug is thought to be
"trivial", so not fixed. Instead the following updated more_io patch with
redirty_tail() is merged:
http://www.spinics.net/linux/lists/linux-ext4/msg04507.html
This will in general prevent 100% on ext2 and possibly other unknown FS bugs.
Signed-off-by: Wu Fengguang <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Martin Bligh <[email protected]>
Cc: Michael Rubin <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Jens Axboe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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This was not a bug, since b_io is empty for kupdate writeback. The next
patch will do requeue_io() for non-kupdate writeback, so let's fix it.
Signed-off-by: Wu Fengguang <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Martin Bligh <[email protected]>
Cc: Michael Rubin <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Jens Axboe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Avoid delaying writeback for an expire inode with lots of dirty pages, but
no active dirtier at the moment. Previously we only do that for the
kupdate case.
Any filesystem that does delayed allocation or unwritten extent conversion
after IO completion will cause this - for example, XFS.
Signed-off-by: Wu Fengguang <[email protected]>
Acked-by: Jan Kara <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Jens Axboe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Document global_dirty_limits() and bdi_dirty_limit().
Signed-off-by: Wu Fengguang <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Split get_dirty_limits() into global_dirty_limits()+bdi_dirty_limit(), so
that the latter can be avoided when under global dirty background
threshold (which is the normal state for most systems).
Signed-off-by: Wu Fengguang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Jens Axboe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Reducing the number of times balance_dirty_pages calls global_page_state
reduces the cache references and so improves write performance on a
variety of workloads.
'perf stats' of simple fio write tests shows the reduction in cache
access. Where the test is fio 'write,mmap,600Mb,pre_read' on AMD AthlonX2
with 3Gb memory (dirty_threshold approx 600 Mb) running each test 10
times, dropping the fasted & slowest values then taking the average &
standard deviation
average (s.d.) in millions (10^6)
2.6.31-rc8 648.6 (14.6)
+patch 620.1 (16.5)
Achieving this reduction is by dropping clip_bdi_dirty_limit as it rereads
the counters to apply the dirty_threshold and moving this check up into
balance_dirty_pages where it has already read the counters.
Also by rearrange the for loop to only contain one copy of the limit tests
allows the pdflush test after the loop to use the local copies of the
counters rather than rereading them.
In the common case with no throttling it now calls global_page_state 5
fewer times and bdi_stat 2 fewer.
Fengguang:
This patch slightly changes behavior by replacing clip_bdi_dirty_limit()
with the explicit check (nr_reclaimable + nr_writeback >= dirty_thresh) to
avoid exceeding the dirty limit. Since the bdi dirty limit is mostly
accurate we don't need to do routinely clip. A simple dirty limit check
would be enough.
The check is necessary because, in principle we should throttle everything
calling balance_dirty_pages() when we're over the total limit, as said by
Peter.
We now set and clear dirty_exceeded not only based on bdi dirty limits,
but also on the global dirty limit. The global limit check is added in
place of clip_bdi_dirty_limit() for safety and not intended as a behavior
change. The bdi limits should be tight enough to keep all dirty pages
under the global limit at most time; occasional small exceeding should be
OK though. The change makes the logic more obvious: the global limit is
the ultimate goal and shall be always imposed.
We may now start background writeback work based on outdated conditions.
That's safe because the bdi flush thread will (and have to) double check
the states. It reduces overall overheads because the test based on old
states still have good chance to be right.
[[email protected]] fix uninitialized dirty_exceeded
Signed-off-by: Richard Kennedy <[email protected]>
Signed-off-by: Wu Fengguang <[email protected]>
Cc: Jan Kara <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Jens Axboe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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parisc __ioremap(): fix off-by-one error in page alignment of allocation
size for sizes where size%PAGE_SIZE==1.
Signed-off-by: Florian Zumbiehl <[email protected]>
Cc: Kyle McMartin <[email protected]>
Acked-by: Helge Deller <[email protected]>
Tested-by: Helge Deller <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Don't dereference vma if it's NULL.
Signed-off-by: Roel Kluin <[email protected]>
Cc: Chen Liqin <[email protected]>
Cc: Lennox Wu <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Fix kconfig dependency warning for PC8736x_GPIO by restricting it to
X86_32.
warning: (SCx200_GPIO && SCx200 || PC8736x_GPIO && X86) selects NSC_GPIO which has unmet direct dependencies (X86_32)
NSC_GPIO is X86_32 only. The other driver (SCx200_GPIO) that selects
NSC_GPIO is X86_32 only (indirectly, since SCx200 depends on X86_32), so
limit this driver also.
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Jordan Crouse <[email protected]>
Cc: Jim Cromie <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Fix a fatal kernel-doc error due to a #define coming between a function's
kernel-doc notation and the function signature. (kernel-doc cannot handle
this)
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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The ACPI_PREEMPTION_POINT() logic was introduced in commit 8bd108d
(ACPICA: add preemption point after each opcode parse). The follow up
commits abe1dfab6, 138d15692, c084ca70 tried to fix the preemption logic
back and forth, but nobody noticed that the usage of
in_atomic_preempt_off() in that context is wrong.
The check which guards the call of cond_resched() is:
if (!in_atomic_preempt_off() && !irqs_disabled())
in_atomic_preempt_off() is not intended for general use as the comment
above the macro definition clearly says:
* Check whether we were atomic before we did preempt_disable():
* (used by the scheduler, *after* releasing the kernel lock)
On a CONFIG_PREEMPT=n kernel the usage of in_atomic_preempt_off() works by
accident, but with CONFIG_PREEMPT=y it's just broken.
The whole purpose of the ACPI_PREEMPTION_POINT() is to reduce the latency
on a CONFIG_PREEMPT=n kernel, so make ACPI_PREEMPTION_POINT() depend on
CONFIG_PREEMPT=n and remove the in_atomic_preempt_off() check.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16210
[[email protected]: fix build]
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Francois Valenduc <[email protected]>
Cc: Lin Ming <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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The current kfifo scatterlist implementation will not work with chained
scatterlists. It assumes that struct scatterlist arrays are allocated
contiguously, which is not the case when chained scatterlists (struct
sg_table) are in use.
Signed-off-by: Stefani Seibold <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Use a lowercase name for the end macro, which somehow fixes a binutils 2.16
problem.
Signed-off-by: Luca Barbieri <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
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CRIS don't need any special mapping for io, but didn't define this,
meaning that all uses of io_remap_pfn_range lead to compile errors.
This fixes a compile error introduced in CRIS when drivers/mtd/mtdchar.c
mmap handling was changed in commit dd02b67d5e9e7896891fa27eb5db65f55a290998
Signed-off-by: Jesper Nilsson <[email protected]>
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The i2c_client received in probe() should not be kfree()'d.
Signed-off-by: Axel Lin <[email protected]>
Acked-by: Mark Brown <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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The i2c_client received in probe() should not be kfree()'d.
Signed-off-by: Axel Lin <[email protected]>
Acked-by: Mark Brown <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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The i2c_client received in probe() should not be kfree()'d.
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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Add mfd core driver for TPS6586x PMICs family.
The driver provides I/O access for the sub-device drivers and performs
regstration of the sub-devices based on the platform requirements.
In addition it implements GPIOlib interface for the chip GPIOs.
TODO:
- add interrupt support
- add platform data for PWM, backlight leds and charger
Signed-off-by: Mike Rapoport <[email protected]>
Signed-off-by: Mike Rapoport <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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This patch is originally done by Carlos Eduardo Aguiar. Original fix is
commit 3305829b2816072b9c8ed01374b205ae4de74027 in
git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
Author modified the fix for mainline version of menelaus.
Signed-off-by: Jarkko Nikula <[email protected]>
Cc: Carlos Eduardo Aguiar <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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We are modifying register value instead of return value.
This fix is originally done by Carlos Eduardo Aguiar. Original fix is
commit bb4e91722e29efe31587d2cc664b6def645aecd9 in
git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
Author modified the fix for mainline version of menelaus.
Signed-off-by: Jarkko Nikula <[email protected]>
Cc: Carlos Eduardo Aguiar <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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This patch includes below fixes:
1. fix wm8350_create_cache error path
make sure wm8350->reg_cache is freed in error path.
2. fix wm8350_device_init error path
no need to kfree(wm8350->reg_cache) in the case of goto out.
Signed-off-by: Axel Lin <[email protected]>
Acked-by: Mark Brown <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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wm8994_device_init() will return 0 in the case of kzalloc fail
in current implementation.
This patch fixes the return value.
Signed-off-by: Axel Lin <[email protected]>
Acked-by: Mark Brown <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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In the case of goto err2, what we want is to call
platform_device_del() instead of platform_device_unregister().
Otherwise, we call platform_device_put() twice.
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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This patch includes below fixes:
1. add a missing iounmap in tc6387xb_probe() error path
2. fix resource reclaim in tc6387xb_remove()
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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This patch corrects the error handling path.
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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This adds all remaining definitions that are used by the core driver
to the .c file.
Signed-off-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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There is a shiny new mc13783 API function that can be used instead.
While at it refactor the code a bit to reduce code duplication a bit.
This removes the last user of <linux/mfd/mc13783-private.h> and so this
include file can go away.
Signed-off-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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This is needed for the mc13783-adc driver to decide if a touch screen is
connected. If so some channels are not available as generic hwmon inputs.
Signed-off-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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If kmalloc() fails exit with -ENOMEM.
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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If mfd_add_devices() fail, we need to relese allocated resources.
Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
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