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2010-11-08Merge branch 'rmobile-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: mmc: sh_mmcif: Convert extern inline to static inline. ARM: mach-shmobile: Allow GPIO chips to register IRQ mappings. ARM: mach-shmobile: fix sh7372 after a recent clock framework rework ARM: mach-shmobile: include drivers/sh/Kconfig ARM: mach-shmobile: ap4evb: Add HDMI sound support ARM: mach-shmobile: clock-sh7372: Add FSIDIV clock support ARM: shmobile: remove sh_timer_config clk member
2010-11-08Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: clkfwk: Fix up checkpatch warnings. sh: make some needlessly global sh7724 clocks static sh: add clk_round_parent() to optimize parent clock rate sh: Simplify phys_addr_mask()/PTE_PHYS_MASK for 29/32-bit. sh: nommu: Support building without an uncached mapping. sh: nommu: use 32-bit phys mode. sh: mach-se: Fix up SE7206 no ioport build. sh: intc: Update for single IRQ reservation helper. sh: clkfwk: Fix up rate rounding error handling. sh: mach-se: Rip out superfluous 7751 PIO routines. sh: mach-se: Rip out superfluous 770x PIO routines. sh: mach-edosk7705: Kill off machtype, consolidate board def. sh: mach-edosk7705: update for this century, kill off PIO trapping. sh: mach-se: Rip out superfluous 7206 PIO routines. sh: mach-systemh: Kill off dead board. sh: mach-snapgear: Kill off machtype, consolidate board def. sh: mach-snapgear: Rip out superfluous PIO routines. sh: mach-microdev: SuperIO-relative ioport mapping.
2010-11-08ext4: Add new ext4 inode tracepointsTheodore Ts'o
Add ext4_evict_inode, ext4_drop_inode, ext4_mark_inode_dirty, and ext4_begin_ordered_truncate() Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-11-08ext4: Don't call sb_issue_discard() in ext4_free_blocks()Theodore Ts'o
Commit 5c521830cf (ext4: Support discard requests when running in no-journal mode) attempts to add sb_issue_discard() for data blocks (in data=writeback mode) and in no-journal mode. Unfortunately, this no longer works, because in commit dd3932eddf (block: remove BLKDEV_IFL_WAIT), sb_issue_discard() only presents a synchronous interface, and there are times when we call ext4_free_blocks() when we are are holding a spinlock, or are otherwise in an atomic context. For now, I've removed the call to sb_issue_discard() to prevent a deadlock or (if spinlock debugging is enabled) failures like this: BUG: scheduling while atomic: rc.sysinit/1376/0x00000002 Pid: 1376, comm: rc.sysinit Not tainted 2.6.36-ARCH #1 Call Trace: [<ffffffff810397ce>] __schedule_bug+0x5e/0x70 [<ffffffff81403110>] schedule+0x950/0xa70 [<ffffffff81060bad>] ? insert_work+0x7d/0x90 [<ffffffff81060fbd>] ? queue_work_on+0x1d/0x30 [<ffffffff81061127>] ? queue_work+0x37/0x60 [<ffffffff8140377d>] schedule_timeout+0x21d/0x360 [<ffffffff812031c3>] ? generic_make_request+0x2c3/0x540 [<ffffffff81402680>] wait_for_common+0xc0/0x150 [<ffffffff81041490>] ? default_wake_function+0x0/0x10 [<ffffffff812034bc>] ? submit_bio+0x7c/0x100 [<ffffffff810680a0>] ? wake_bit_function+0x0/0x40 [<ffffffff814027b8>] wait_for_completion+0x18/0x20 [<ffffffff8120a969>] blkdev_issue_discard+0x1b9/0x210 [<ffffffff811ba03e>] ext4_free_blocks+0x68e/0xb60 [<ffffffff811b1650>] ? __ext4_handle_dirty_metadata+0x110/0x120 [<ffffffff811b098c>] ext4_ext_truncate+0x8cc/0xa70 [<ffffffff810d713e>] ? pagevec_lookup+0x1e/0x30 [<ffffffff81191618>] ext4_truncate+0x178/0x5d0 [<ffffffff810eacbb>] ? unmap_mapping_range+0xab/0x280 [<ffffffff810d8976>] vmtruncate+0x56/0x70 [<ffffffff811925cb>] ext4_setattr+0x14b/0x460 [<ffffffff811319e4>] notify_change+0x194/0x380 [<ffffffff81117f80>] do_truncate+0x60/0x90 [<ffffffff811e08fa>] ? security_inode_permission+0x1a/0x20 [<ffffffff811eaec1>] ? tomoyo_path_truncate+0x11/0x20 [<ffffffff81127539>] do_last+0x5d9/0x770 [<ffffffff811278bd>] do_filp_open+0x1ed/0x680 [<ffffffff8140644f>] ? page_fault+0x1f/0x30 [<ffffffff81132bfc>] ? alloc_fd+0xec/0x140 [<ffffffff81118db1>] do_sys_open+0x61/0x120 [<ffffffff81118e8b>] sys_open+0x1b/0x20 [<ffffffff81002e6b>] system_call_fastpath+0x16/0x1b https://bugzilla.kernel.org/show_bug.cgi?id=22302 Reported-by: Mathias Burén <mathias.buren@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: jiayingz@google.com
2010-11-08ext4: do not try to grab the s_umount semaphore in ext4_quota_offDmitry Monakhov
It's not needed to sync the filesystem, and it fixes a lock_dep complaint. Signed-off-by: Dmitry Monakhov <dmonakhov@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
2010-11-08ext4: fix potential race when freeing ext4_io_page structuresTheodore Ts'o
Use an atomic_t and make sure we don't free the structure while we might still be submitting I/O for that page. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-11-08ext4: handle writeback of inodes which are being freedTheodore Ts'o
The following BUG can occur when an inode which is getting freed when it still has dirty pages outstanding, and it gets deleted (in this because it was the target of a rename). In ordered mode, we need to make sure the data pages are written just in case we crash before the rename (or unlink) is committed. If the inode is being freed then when we try to igrab the inode, we end up tripping the BUG_ON at fs/ext4/page-io.c:146. To solve this problem, we need to keep track of the number of io callbacks which are pending, and avoid destroying the inode until they have all been completed. That way we don't have to bump the inode count to keep the inode from being destroyed; an approach which doesn't work because the count could have already been dropped down to zero before the inode writeback has started (at which point we're not allowed to bump the count back up to 1, since it's already started getting freed). Thanks to Dave Chinner for suggesting this approach, which is also used by XFS. kernel BUG at /scratch_space/linux-2.6/fs/ext4/page-io.c:146! Call Trace: [<ffffffff811075b1>] ext4_bio_write_page+0x172/0x307 [<ffffffff811033a7>] mpage_da_submit_io+0x2f9/0x37b [<ffffffff811068d7>] mpage_da_map_and_submit+0x2cc/0x2e2 [<ffffffff811069b3>] mpage_add_bh_to_extent+0xc6/0xd5 [<ffffffff81106c66>] write_cache_pages_da+0x2a4/0x3ac [<ffffffff81107044>] ext4_da_writepages+0x2d6/0x44d [<ffffffff81087910>] do_writepages+0x1c/0x25 [<ffffffff810810a4>] __filemap_fdatawrite_range+0x4b/0x4d [<ffffffff810815f5>] filemap_fdatawrite_range+0xe/0x10 [<ffffffff81122a2e>] jbd2_journal_begin_ordered_truncate+0x7b/0xa2 [<ffffffff8110615d>] ext4_evict_inode+0x57/0x24c [<ffffffff810c14a3>] evict+0x22/0x92 [<ffffffff810c1a3d>] iput+0x212/0x249 [<ffffffff810bdf16>] dentry_iput+0xa1/0xb9 [<ffffffff810bdf6b>] d_kill+0x3d/0x5d [<ffffffff810be613>] dput+0x13a/0x147 [<ffffffff810b990d>] sys_renameat+0x1b5/0x258 [<ffffffff81145f71>] ? _atomic_dec_and_lock+0x2d/0x4c [<ffffffff810b2950>] ? cp_new_stat+0xde/0xea [<ffffffff810b29c1>] ? sys_newlstat+0x2d/0x38 [<ffffffff810b99c6>] sys_rename+0x16/0x18 [<ffffffff81002a2b>] system_call_fastpath+0x16/0x1b Reported-by: Nick Bowler <nbowler@elliptictech.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Tested-by: Nick Bowler <nbowler@elliptictech.com>
2010-11-08ceph: fix update of ctime from MDSSage Weil
The client can have a newer ctime than the MDS due to AUTH_EXCL and XATTR_EXCL caps as well; update the check in ceph_fill_file_time appropriately. This fixes cases where ctime/mtime goes backward under the right sequence of local updates (e.g. chmod) and mds replies (e.g. subsequent stat that goes to the MDS). Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-08ceph: fix version check on racing inode updatesSage Weil
We may get updates on the same inode from multiple MDSs; generally we only pay attention if the update is newer than what we already have. The exception is when an MDS sense unstable information, in which case we always update. The old > check got this wrong when our version was odd (e.g. 3) and the reply version was even (e.g. 2): the older stale (v2) info would be applied. Fixed and clarified the comment. Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-08xen-pcifront: fix PCI reference leakJiri Slaby
Stanse found that when pdev is found and has no driver a reference is leaked in pcifront_common_process. So add pci_dev_put there. For the pdev == NULL case, pci_dev_put(NULL) is fine. [v2: Updated to not dereference pcidev->dev per Milton's observation] Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Milton Miller <miltonm@bga.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-11-08xen-pcifront: Remove duplicate inclusion of headers.Jesper Juhl
In drivers/pci/xen-pcifront.c the xen/xenbus.h header is included twice - once is enough. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2010-11-08xen: fix memory leak in Xen PCI MSI/MSI-X allocator.Jiri Slaby
Stanse found that xen_setup_msi_irqs leaks memory when xen_allocate_pirq fails. Free the memory in that fail path. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: xen-devel@lists.xensource.com Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org
2010-11-08MAINTAINERS: Update mailing list name for Xen pieces.Konrad Rzeszutek Wilk
While the 'xen-devel@lists.xen.org' is more apt, it is not yet ready. Revert the name back to the old lists.xensource.com for right now. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2010-11-08ASoC: s3c24xx: Fix compilation problem for mini2440Marek Belisko
When make mini2440_defconfig compilation end with undefined references to DMA functions. There was missing selection for S3C2410_DMA when compile ASoC audio for S3C24xx CPU. Tested on mini2440 board. Signed-off-by: Marek Belisko <marek.belisko@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-11-08ASoC: Return proper error if snd_soc_register_dais fails in psc_i2s_of_probeAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-11-08ceph: fix uid/gid on resent mds requestsSage Weil
MDS requests can be rebuilt and resent in non-process context, but were filling in uid/gid from current_fsuid/gid. Put that information in the request struct on request setup. This fixes incorrect (and root) uid/gid getting set for requests that are forwarded between MDSs, usually due to metadata migrations. Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-08ceph: fix rdcache_gen usage and invalidateSage Weil
We used to use rdcache_gen to indicate whether we "might" have cached pages. Now we just look at the mapping to determine that. However, some old behavior remains from that transition. First, rdcache_gen == 0 no longer means we have no pages. That can happen at any time (presumably when we carry FILE_CACHE). We should not reset it to zero, and we should not check that it is zero. That means that the only purpose for rdcache_revoking is to resolve races between new issues of FILE_CACHE and an async invalidate. If they are equal, we should invalidate. On success, we decrement rdcache_revoking, so that it is no longer equal to rdcache_gen. Similarly, if we success in doing a sync invalidate, set revoking = gen - 1. (This is a small optimization to avoid doing unnecessary invalidate work and does not affect correctness.) Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-08drm/i915/ringbuffer: Use the HEAD auto-reporting mechanismChris Wilson
My Sandybridge only reports 0 for the ring buffer registers, causing it to hang as soon as we exhaust the available ring. As a workaround, take advantage of our huge ring buffers and use the auto-reporting mechanism to update the status page with the HEAD location every 64 KiB. Cherry-picked from 6aa56062eaba67adfb247cded244fd877329588d. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31404 Tested-by: Zhao Jian <jian.j.zhao@intel.com> Cc: stable@kernel.org Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-08drm/i915: Avoid might_fault during pwrite whilst holding our mutexChris Wilson
... and so prevent a potential circular reference: [ INFO: possible circular locking dependency detected ] 2.6.37-rc1-uwe1+ #4 ------------------------------------------------------- Xorg/1401 is trying to acquire lock: (&mm->mmap_sem){++++++}, at: [<c01e4ddb>] might_fault+0x4b/0xa0 but task is already holding lock: (&dev->struct_mutex){+.+.+.}, at: [<f869c3ac>] i915_mutex_lock_interruptible+0x3c/0x60 [i915] which lock already depends on the new lock. When the locking around the pwrite ioctl was simplified, I did not spot that the phys path never took any locks and so we introduced this potential circular reference. Reported-by: Uwe Helm <uwe.helm@googlemail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-08usb: musb: gadget: kill duplicate code in musb_gadget_queue()Sergei Shtylyov
musb_gadget_queue() checks for '!req->buf' condition twice: in the second case the code is both duplicated and unreachable as the first check returns early. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-11-08rtc: rtc-sh - fix a memory leakAxel Lin
request_mem_region() will call kzalloc to allocate memory for struct resource. release_resource() unregisters the resource but does not free the allocated memory, thus use release_mem_region() instead to fix the memory leak. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-08ARM: mach-shmobile: ap4evb: Mark NOR boot loader partitions read-only.Yusuke Goda
This makes the loader and bootenv partitions read-only under MTD for the on-board NOR flash. Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-08ARM: mach-shmobile: intc-sh7372: fix interrupt numberTony SIM
Signed-off-by: Tony SIM <chinyeow.sim.xt@renesas.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-07net dst: need linux/cache.h for ____cacheline_aligned_in_smp.Paul Mundt
Presently the b43legacy build fails on an sh randconfig: In file included from include/net/dst.h:12, from drivers/net/wireless/b43legacy/xmit.c:32: include/net/dst_ops.h:28: error: expected ':', ',', ';', '}' or '__attribute__' before '____cacheline_aligned_in_smp' include/net/dst_ops.h: In function 'dst_entries_get_fast': include/net/dst_ops.h:33: error: 'struct dst_ops' has no member named 'pcpuc_entries' include/net/dst_ops.h: In function 'dst_entries_get_slow': include/net/dst_ops.h:41: error: 'struct dst_ops' has no member named 'pcpuc_entries' include/net/dst_ops.h: In function 'dst_entries_add': include/net/dst_ops.h:49: error: 'struct dst_ops' has no member named 'pcpuc_entries' include/net/dst_ops.h: In function 'dst_entries_init': include/net/dst_ops.h:55: error: 'struct dst_ops' has no member named 'pcpuc_entries' include/net/dst_ops.h: In function 'dst_entries_destroy': include/net/dst_ops.h:60: error: 'struct dst_ops' has no member named 'pcpuc_entries' make[5]: *** [drivers/net/wireless/b43legacy/xmit.o] Error 1 make[5]: *** Waiting for unfinished jobs.... Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-08Merge branch 'rmobile/core' into rmobile-fixes-for-linusPaul Mundt
2010-11-08Merge branches 'sh/pio-death', 'sh/nommu', 'sh/clkfwk', 'sh/core' and ↵Paul Mundt
'sh/intc-extension' into sh-fixes-for-linus
2010-11-08sh: clkfwk: Fix up checkpatch warnings.Paul Mundt
The clk_round_parent() change introduced various checkpatch warnings, tidy them up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-08sh: make some needlessly global sh7724 clocks staticGuennadi Liakhovetski
These clocks are currently only used inside one .c file and are not declared in any headers, therefore having them global is useless. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-08sh: add clk_round_parent() to optimize parent clock rateGuennadi Liakhovetski
Sometimes it is possible and reasonable to adjust the parent clock rate to improve precision of the child clock, e.g., if the child clock has no siblings. clk_round_parent() is a new addition to the SH clock-framework API, that implements such an optimization for child clocks with divisors, taking all integer values in a range. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-11-07mmc: sdhci-esdhc-imx: enable QUIRK_NO_MULTIBLOCK only for i.MX25 and i.MX35Eric Bénard
Only these CPUs list the bug in their errata. Signed-off-by: Eric Bénard <eric@eukrea.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-07mmc: sdhci-esdhc-imx: fix timeout on i.MX's sdhciEric Bénard
This patch fixes timeout problems on i.MX's sdhci as suggested by Richard Zhu. Tested on: - i.MX257: not needed - i.MX357: needed - i.MX515: needed More details can be found here: http://lists.infradead.org/pipermail/linux-arm-kernel/2010-October/029748.html Signed-off-by: Eric Bénard <eric@eukrea.com> Tested-by: Shawn Guo <shawn.gsc@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-07mmc: sdhci: Properly enable SDIO IRQ wakeupsDaniel Drake
A little more work was needed for SDIO IRQ wakeups to be functional. Wake-on-WLAN on the SD WiFi adapter in the XO-1.5 laptop is now working. Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-07mmc: ushc: Return proper error code for ushc_probe()Axel Lin
Improves error handling in the ushc driver. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-07mmc: Fix printing of card DDR typePhilip Rakity
We should not call mmc_card_set_ddr_mode() if we are in single data mode. This sets DDR and causes the kernel log to say the card is DDR when it is not. Explicitly set ddr to 0 rather then rely on MMC_SDR_MODE being 0 when doing the checks. Signed-off-by: Philip Rakity <prakity@marvell.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-11-07ARM: arch/arm/kernel/traps.c: Convert sprintf_symbol to %pSJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-07ARM: arch/arm/kernel/hw_breakpoint.c: Convert WARN_ON to WARNJoe Perches
Message isn't printed by WARN_ON. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-07ceph: re-request max_size if cap auth changesSage Weil
If the auth cap migrates to another MDS, clear requested_max_size so that we resend any pending max_size increase requests. This fixes potential hangs on writes that extend a file and race with an cap migration between MDSs. Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-07ceph: only let auth caps update max_sizeSage Weil
Only the auth MDS has a meaningful max_size value for us, so only update it in fill_inode if we're being issued an auth cap. Otherwise, a random stat result from a non-auth MDS can clobber a meaningful max_size, get the client<->mds cap state out of sync, and make writes hang. Specifically, even if the client re-requests a larger max_size (which it will), the MDS won't respond because as far as it knows we already have a sufficiently large value. Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-07ceph: fix open for write on clustered mdsSage Weil
Normally when we open a file we already have a cap, and simply update the wanted set. However, if we open a file for write, but don't have an auth cap, that doesn't work; we need to open a new cap with the auth MDS. Only reuse existing caps if we are opening for read or the existing cap is auth. Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-07ceph: fix bad pointer dereference in ceph_fill_traceSage Weil
We dereference *in a few lines down, but only set it on rename. It is apparently pretty rare for this to trigger, but I have been hitting it with a clustered MDSs. Signed-off-by: Sage Weil <sage@newdream.net>
2010-11-07ARM: 6462/1: EP93xx: Document DMA M2P APIRyan Mallon
Add kernel-doc documentation for the EP93xx DMA memory to peripheral/peripheral to memory API. Signed-off-by: Ryan Mallon <ryan@bluewatersys.com> Acked-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-07ARM: 6470/1: atomic64: use generic implementation for OABI configurationsWill Deacon
The old apcs-gnu ABI doesn't guarantee that double words are allocated to registers with even alignment, causing the 64-bit exclusive memory operations to be rejected by the assembler. This patch requires that CONFIG_AEABI is set in order to use the native atomic operations and falls back to the generic (spinlock) code otherwise. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-07ARM: 6469/1: perf-events: squash compiler warningWill Deacon
armv7_pmnc_counter_has_overflowed can return uninitialised data if an invalid counter is specified. This patch fixes the code to return 0 in this case, which squashes the compiler warning from GCC 4.5. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-07ARM: 6468/1: backtrace: fix calculation of thread stack baseWill Deacon
When unwinding stack frames we must take care not to unwind areas of memory that lie outside of the known extent of the stack. This patch fixes an incorrect calculation of the stack base where THREAD_SIZE is added to the stack pointer after it has already been aligned to this value. Since the ALIGN macro performs this addition internally, we end up overshooting the base by 8k. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-07Merge branch 'fix' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
2010-11-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/nico/orionRussell King
2010-11-07ARM: Fix DMA coherent allocator alignmentRussell King
An out by one bug meant that the DMA coherent allocator was aligning to one more bit than it should, causing it to run out of available memory quicker. Fix this. Reported-by: Petr Štetiar <ynezz@true.cz> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-07NET: pktgen - fix compile warningDmitry Torokhov
This should fix the following warning: net/core/pktgen.c: In function ‘pktgen_if_write’: net/core/pktgen.c:890: warning: comparison of distinct pointer types lacks a cast Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Reviewed-by: Nelson Elhage <nelhage@ksplice.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-06Staging: ath6kl: remove empty files that mess with 'distclean'Greg Kroah-Hartman
These two .h files would get removed from the tree when doing make distclean It turns out they are not needed at all, so just delete them which fixes people's git trees when doing development. Reported-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-06ASoC: WM8776: Removed unneeded struct memberDimitris Papastamos
The member reg_cache is not used at all and therefore it should be removed. This member was usually needed for older versions of ASoC that did not handle caching automatically and had to be done in the driver itself. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>