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2012-08-02libertas: fix two memory leaksDaniel Drake
The if_sdio_card structure was never being freed, and neither was the command structure used for association. Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-08-02rt2x00 : fix rt3290 resuming failed.Woody Hung
This patch is going to fix the resuming failed from S3/S4 for rt3290 chip. Signed-off-by: Woody Hung <Woody.Hung@mediatek.com> Cc: Kevin Chou <kevin.chou@mediatek.com> Signed-off-by: Chen, Chien-Chia <machen@suse.com> Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-08-02libertas: don't reset card on error when it is being removedDaniel Drake
On an OLPC XO-1.5 we have seen the following situation: - the system starts going into suspend - no wake params are set, so the mmc layer removes the card - during remove, we send a command to the card - that command fails, causing if_sdio's reset method to try and remove the mmc card in attempt to reset it - the mmc layer is not happy about being asked to remove a card that it is already removing, and the kernel crashes While the MMC layer could possibly be taught to behave better here, it also seems sensible for libertas not to try and reset a card if we're in the process of removing it anyway. Signed-off-by: Daniel Drake <dsd@laptop.org> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-08-02b43: fix logic in GPIO initRafał Miłecki
Add some comments by the way Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-08-02bcma: BCM43228 supportRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-08-02Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
2012-08-02cfg80211: Clear "beacon_found" on regulatory restorePaul Stewart
Restore the default state to the "beacon_found" flag when the channel flags are restored. Otherwise, we can end up with a channel that we can no longer transmit on even when we can see beacons on that channel. Signed-off-by: Paul Stewart <pstew@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-08-02cfg80211: add channel flag to prohibit OFDM operationSeth Forshee
Currently the only way for wireless drivers to tell whether or not OFDM is allowed on the current channel is to check the regulatory information. However, this requires hodling cfg80211_mutex, which is not visible to the drivers. Other regulatory restrictions are provided as flags in the channel definition, so let's do similarly with OFDM. This patch adds a new flag, IEEE80211_CHAN_NO_OFDM, to tell drivers that OFDM on a channel is not allowed. This flag is set on any channels for which regulatory indicates that OFDM is prohibited. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Tested-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-08-02firmware: Remove obsolete Chelsio cxgb3 firmwareTim Gardner
The current firmware version used by the device driver is 7.12.0 Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: James Bottomley <JBottomley@Parallels.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Divy Le Ray <divy@chelsio.com> Cc: netdev@vger.kernel.org Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
2012-08-02ipv4: route.c cleanupEric Dumazet
Remove unused includes after IP cache removal Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-02bnx2x: fix mem leak when command is unknownJesper Juhl
In bnx2x_mcast_enqueue_cmd() we'll leak the memory allocated to 'new_cmd' if we hit the deafault case of the 'switch (cmd)'. Add a 'kfree(new_cmd)' to that case to avoid the leak. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Acked-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-02Fix unexpected SA hard expiration after changing dateFan Du
After SA is setup, one timer is armed to detect soft/hard expiration, however the timer handler uses xtime to do the math. This makes hard expiration occurs first before soft expiration after setting new date with big interval. As a result new child SA is deleted before rekeying the new one. Signed-off-by: Fan Du <fdu@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-02tcp: Apply device TSO segment limit earlierBen Hutchings
Cache the device gso_max_segs in sock::sk_gso_max_segs and use it to limit the size of TSO skbs. This avoids the need to fall back to software GSO for local TCP senders. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-02sfc: Fix maximum number of TSO segments and minimum TX queue sizeBen Hutchings
Currently an skb requiring TSO may not fit within a minimum-size TX queue. The TX queue selected for the skb may stall and trigger the TX watchdog repeatedly (since the problem skb will be retried after the TX reset). This issue is designated as CVE-2012-3412. Set the maximum number of TSO segments for our devices to 100. This should make no difference to behaviour unless the actual MSS is less than about 700. Increase the minimum TX queue size accordingly to allow for 2 worst-case skbs, so that there will definitely be space to add an skb after we wake a queue. To avoid invalidating existing configurations, change efx_ethtool_set_ringparam() to fix up values that are too small rather than returning -EINVAL. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-02net: Allow driver to limit number of GSO segments per skbBen Hutchings
A peer (or local user) may cause TCP to use a nominal MSS of as little as 88 (actual MSS of 76 with timestamps). Given that we have a sufficiently prodigious local sender and the peer ACKs quickly enough, it is nevertheless possible to grow the window for such a connection to the point that we will try to send just under 64K at once. This results in a single skb that expands to 861 segments. In some drivers with TSO support, such an skb will require hundreds of DMA descriptors; a substantial fraction of a TX ring or even more than a full ring. The TX queue selected for the skb may stall and trigger the TX watchdog repeatedly (since the problem skb will be retried after the TX reset). This particularly affects sfc, for which the issue is designated as CVE-2012-3412. Therefore: 1. Add the field net_device::gso_max_segs holding the device-specific limit. 2. In netif_skb_features(), if the number of segments is too high then mask out GSO features to force fall back to software GSO. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-01Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS updates from Ralf Baechle: "The lion share of this pull request are fixes for clk-related breakage caused by other changes during this merge window. For some platforms the fix was as simple as selecting HAVE_CLK, for others like the Loongson 2 significant restructuring was required. The remainder are changes required to get the Lantiq code to work again." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Loongson 2: Sort out clock managment. MIPS: Loongson 1: more clk support and add select HAVE_CLK MIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLK MIPS: BCM63xx: Fix redefinition of clk_* by adding select HAVE_CLK MIPS: AR7: Fix redefinition of clk_* by adding select HAVE_CLK MIPS: Lantiq: Platform specific CLK fixup MIPS: Lantiq: Add device_tree_init function MIPS: Lantiq: Fix interface clock and PCI control register offset
2012-08-01Merge branch 'for-linus-3.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml Pull UML fixes from Richard Weinberger: "This patch set contains mostly fixes and cleanups. The UML tty driver uses now tty_port and is no longer broken like hell :-)" * 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: Add arch/x86/um to MAINTAINERS um: pass siginfo to guest process um: fix ubd_file_size for read-only files um: pull interrupt_end() into userspace() um: split syscall_trace(), pass pt_regs to it um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs um: set BLK_CGROUP=y in defconfig um: remove count_lock um: fully use tty_port um: Remove dead code um: remove line_ioctl() TTY: um/line, use tty from tty_port TTY: um/line, add tty_port
2012-08-01Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM DMA engine updates from Russell King: "This looks scary at first glance, but what it is is: - a rework of the sa11x0 DMA engine driver merged during the previous cycle, to extract a common set of helper functions for DMA engine implementations. - conversion of amba-pl08x.c to use these helper functions. - addition of OMAP DMA engine driver (using these helper functions), and conversion of some of the OMAP DMA users to use DMA engine. Nothing in the helper functions is ARM specific, so I hope that other implementations can consolidate some of their code by making use of these helpers. This has been sitting in linux-next most of the merge cycle, and has been tested by several OMAP folk. I've tested it on sa11x0 platforms, and given it my best shot on my broken platforms which have the amba-pl08x controller. The last point is the addition to feature-removal-schedule.txt, which will have a merge conflict. Between myself and TI, we're planning to remove the old TI DMA implementation next year." Fix up trivial add/add conflicts in Documentation/feature-removal-schedule.txt and drivers/dma/{Kconfig,Makefile} * 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm: (53 commits) ARM: 7481/1: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine ARM: 7464/1: mmc: omap_hsmmc: ensure probe returns error if DMA channel request fails Add feature removal of old OMAP private DMA implementation mtd: omap2: remove private DMA API implementation mtd: omap2: add DMA engine support spi: omap2-mcspi: remove private DMA API implementation spi: omap2-mcspi: add DMA engine support ARM: omap: remove mmc platform data dma_mask and initialization mmc: omap: remove private DMA API implementation mmc: omap: add DMA engine support mmc: omap_hsmmc: remove private DMA API implementation mmc: omap_hsmmc: add DMA engine support dmaengine: omap: add support for cyclic DMA dmaengine: omap: add support for setting fi dmaengine: omap: add support for returning residue in tx_state method dmaengine: add OMAP DMA engine driver dmaengine: sa11x0-dma: add cyclic DMA support dmaengine: sa11x0-dma: fix DMA residue support dmaengine: PL08x: ensure all descriptors are freed when channel is released dmaengine: PL08x: get rid of write only pool_ctr and free_txd locking ...
2012-08-01Merge branch 'audit' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM audit/signal updates from Russell King: "ARM audit/signal handling updates from Al and Will. This improves on the work Viro did last merge window, and sorts out some of the issues found with that work." * 'audit' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7475/1: sys_trace: allow all syscall arguments to be updated via ptrace ARM: 7474/1: get rid of TIF_SYSCALL_RESTARTSYS ARM: 7473/1: deal with handlerless restarts without leaving the kernel ARM: 7472/1: pull all work_pending logics into C function ARM: 7471/1: Revert "7442/1: Revert "remove unused restart trampoline"" ARM: 7470/1: Revert "7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK""
2012-08-01Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "This fixes various issues found during July" * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7479/1: mm: avoid NULL dereference when flushing gate_vma with VIVT caches ARM: Fix undefined instruction exception handling ARM: 7480/1: only call smp_send_stop() on SMP ARM: 7478/1: errata: extend workaround for erratum #720789 ARM: 7477/1: vfp: Always save VFP state in vfp_pm_suspend on UP ARM: 7476/1: vfp: only clear vfp state for current cpu in vfp_pm_suspend ARM: 7468/1: ftrace: Trace function entry before updating index ARM: 7467/1: mutex: use generic xchg-based implementation for ARMv6+ ARM: 7466/1: disable interrupt before spinning endlessly ARM: 7465/1: Handle >4GB memory sizes in device tree and mem=size@start option
2012-08-02um: Add arch/x86/um to MAINTAINERSRichard Weinberger
Signed-off-by: Richard Weinberger <richard@nod.at>
2012-08-02um: pass siginfo to guest processMartin Pärtel
UML guest processes now get correct siginfo_t for SIGTRAP, SIGFPE, SIGILL and SIGBUS. Specifically, si_addr and si_code are now correct where previously they were si_addr = NULL and si_code = 128. Signed-off-by: Martin Pärtel <martin.partel@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-08-02um: fix ubd_file_size for read-only filesMartin Pärtel
Made ubd_file_size not request write access. Fixes use of read-only images. Signed-off-by: Martin Pärtel <martin.partel@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-08-02um: pull interrupt_end() into userspace()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-08-02um: split syscall_trace(), pass pt_regs to itAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> [richard@nod.at: Fixed some minor build issues] Signed-off-by: Richard Weinberger <richard@nod.at>
2012-08-01um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-08-01mac80211: cancel mesh path timerJohannes Berg
The mesh path timer needs to be canceled when leaving the mesh as otherwise it could fire after the interface has been removed already. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-08-01mac80211: clear timer bits when disconnectingJohannes Berg
There's a corner case that can happen when we suspend with a timer running, then resume and disconnect. If we connect again, suspend and resume we might start timers that shouldn't be running. Reset the timer flags to avoid this. This affects both mesh and managed modes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-08-01Merge tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6Linus Torvalds
Pull fbdev updates from Florian Tobias Schandinat: - large updates for OMAP - support for LCD3 overlay manager (omap5) - omapdss output cleanup - removal of passive matrix LCD support as there are no drivers for such panels for DSS or DSS2 and nobody complained (cleanup) - large updates for SH Mobile - overlay support - separating MERAM (cache) from framebuffer driver - some updates for Exynos and da8xx-fb - various other small patches * tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6: (78 commits) da8xx-fb: fix compile issue due to missing include fbdev: Make pixel_to_pat() failure mode more friendly da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled fbdev: sh_mobile_lcdc: Fix vertical panning step video: exynos mipi dsi: Fix mipi dsi regulators handling issue video: da8xx-fb: do clock reset of revision 2 LCDC before enabling arm: da850: configure LCDC fifo threshold video: da8xx-fb: configure FIFO threshold to reduce underflow errors video: da8xx-fb: fix flicker due to 1 frame delay in updated frame video: da8xx-fb rev2: fix disabling of palette completion interrupt da8xx-fb: add missing FB_BLANK operations video: exynos_dp: use usleep_range instead of delay video: exynos_dp: check the only INTERLANE_ALIGN_DONE bit during Link Training fb: epson1355fb: Fix section mismatch video: exynos_dp: fix wrong DPCD address during Link Training video/smscufx: fix line counting in fb_write aty128fb: Fix coding style issues fbdev: sh_mobile_lcdc: Fix pan offset computation in YUV mode fbdev: sh_mobile_lcdc: Fix overlay registers update during pan operation fbdev: sh_mobile_lcdc: Support horizontal panning ...
2012-08-01Merge tag 'sound-3.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A collection of small fixes that have been found recently. Most of the commits are regression fixes in HD-audio and some other random drivers." * tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: snd-usb: fix clock source validity index ALSA: hda - Fix mute-LED GPIO initialization for IDT codecs ALSA: hda - Add descriptions for missing IDT 92HD83x models ALSA: hda - Fix polarity of mute LED on HP Mini 210 ALSA: es1688 - freeup resources on init failure ALSA: hda - Workaround for silent output on VAIO Z with ALC889 ALSA: hda - Fix WARNING from HDMI/DP parser ALSA: hda - Detach from converter at closing in patch_hdmi.c ALSA: hda - Fix mute-LED GPIO setup for HP Mini 210 ALSA: mpu401: Fix missing initialization of irq field ALSA: hda - Fix invalid D3 of headphone DAC on VT202x codecs
2012-08-01Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull second vfs pile from Al Viro: "The stuff in there: fsfreeze deadlock fixes by Jan (essentially, the deadlock reproduced by xfstests 068), symlink and hardlink restriction patches, plus assorted cleanups and fixes. Note that another fsfreeze deadlock (emergency thaw one) is *not* dealt with - the series by Fernando conflicts a lot with Jan's, breaks userland ABI (FIFREEZE semantics gets changed) and trades the deadlock for massive vfsmount leak; this is going to be handled next cycle. There probably will be another pull request, but that stuff won't be in it." Fix up trivial conflicts due to unrelated changes next to each other in drivers/{staging/gdm72xx/usb_boot.c, usb/gadget/storage_common.c} * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (54 commits) delousing target_core_file a bit Documentation: Correct s_umount state for freeze_fs/unfreeze_fs fs: Remove old freezing mechanism ext2: Implement freezing btrfs: Convert to new freezing mechanism nilfs2: Convert to new freezing mechanism ntfs: Convert to new freezing mechanism fuse: Convert to new freezing mechanism gfs2: Convert to new freezing mechanism ocfs2: Convert to new freezing mechanism xfs: Convert to new freezing code ext4: Convert to new freezing mechanism fs: Protect write paths by sb_start_write - sb_end_write fs: Skip atime update on frozen filesystem fs: Add freezing handling to mnt_want_write() / mnt_drop_write() fs: Improve filesystem freezing handling switch the protection of percpu_counter list to spinlock nfsd: Push mnt_want_write() outside of i_mutex btrfs: Push mnt_want_write() outside of i_mutex fat: Push mnt_want_write() outside of i_mutex ...
2012-08-01MIPS: Loongson 2: Sort out clock managment.Ralf Baechle
For unexplainable reasons the Loongson 2 clock API was implemented in a module so fixing this involved shifting large amounts of code around. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-08-01Merge branch 'for-3.6/drivers' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block driver changes from Jens Axboe: - Making the plugging support for drivers a bit more sane from Neil. This supersedes the plugging change from Shaohua as well. - The usual round of drbd updates. - Using a tail add instead of a head add in the request completion for ndb, making us find the most completed request more quickly. - A few floppy changes, getting rid of a duplicated flag and also running the floppy init async (since it takes forever in boot terms) from Andi. * 'for-3.6/drivers' of git://git.kernel.dk/linux-block: floppy: remove duplicated flag FD_RAW_NEED_DISK blk: pass from_schedule to non-request unplug functions. block: stack unplug blk: centralize non-request unplug handling. md: remove plug_cnt feature of plugging. block/nbd: micro-optimization in nbd request completion drbd: announce FLUSH/FUA capability to upper layers drbd: fix max_bio_size to be unsigned drbd: flush drbd work queue before invalidate/invalidate remote drbd: fix potential access after free drbd: call local-io-error handler early drbd: do not reset rs_pending_cnt too early drbd: reset congestion information before reporting it in /proc/drbd drbd: report congestion if we are waiting for some userland callback drbd: differentiate between normal and forced detach drbd: cleanup, remove two unused global flags floppy: Run floppy initialization asynchronous
2012-08-01Merge branch 'for-3.6/core' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull core block IO bits from Jens Axboe: "The most complicated part if this is the request allocation rework by Tejun, which has been queued up for a long time and has been in for-next ditto as well. There are a few commits from yesterday and today, mostly trivial and obvious fixes. So I'm pretty confident that it is sound. It's also smaller than usual." * 'for-3.6/core' of git://git.kernel.dk/linux-block: block: remove dead func declaration block: add partition resize function to blkpg ioctl block: uninitialized ioc->nr_tasks triggers WARN_ON block: do not artificially constrain max_sectors for stacking drivers blkcg: implement per-blkg request allocation block: prepare for multiple request_lists block: add q->nr_rqs[] and move q->rq.elvpriv to q->nr_rqs_elvpriv blkcg: inline bio_blkcg() and friends block: allocate io_context upfront block: refactor get_request[_wait]() block: drop custom queue draining used by scsi_transport_{iscsi|fc} mempool: add @gfp_mask to mempool_create_node() blkcg: make root blkcg allocation use %GFP_KERNEL blkcg: __blkg_lookup_create() doesn't need radix preload
2012-08-01Merge branch 'for-next' of git://neil.brown.name/mdLinus Torvalds
Pull md updates from NeilBrown. * 'for-next' of git://neil.brown.name/md: DM RAID: Add support for MD RAID10 md/RAID1: Add missing case for attempting to repair known bad blocks. md/raid5: For odirect-write performance, do not set STRIPE_PREREAD_ACTIVE. md/raid1: don't abort a resync on the first badblock. md: remove duplicated test on ->openers when calling do_md_stop() raid5: Add R5_ReadNoMerge flag which prevent bio from merging at block layer md/raid1: prevent merging too large request md/raid1: read balance chooses idlest disk for SSD md/raid1: make sequential read detection per disk based MD RAID10: Export md_raid10_congested MD: Move macros from raid1*.h to raid1*.c MD RAID1: rename mirror_info structure MD RAID10: rename mirror_info structure MD RAID10: Fix compiler warning. raid5: add a per-stripe lock raid5: remove unnecessary bitmap write optimization raid5: lockless access raid5 overrided bi_phys_segments raid5: reduce chance release_stripe() taking device_lock
2012-08-01locks: remove unused lm_release_privateJ. Bruce Fields
In commit 3b6e2723f32d ("locks: prevent side-effects of locks_release_private before file_lock is initialized") we removed the last user of lm_release_private without removing the field itself. Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-08-01MIPS: Loongson 1: more clk support and add select HAVE_CLKYoichi Yuasa
This fixes a redefinition of clk_*: arch/mips/loongson1/common/clock.c:23:13: error: redefinition of 'clk_get' include/linux/clk.h:281:27: note: previous definition of 'clk_get' was here arch/mips/loongson1/common/clock.c:41:15: error: redefinition of 'clk_get_rate' include/linux/clk.h:302:29: note: previous definition of 'clk_get_rate' was here make[3]: *** [arch/mips/loongson1/common/clock.o] Error 1 Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips@linux-mips.org Reviewed-by: John Crispin <blogic@openwrt.org> Acked-by: Kelvin Cheung <keguang.zhang@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/4143/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-08-01MIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLKYoichi Yuasa
arch/mips/txx9/generic/setup.c:87:13: error: redefinition of 'clk_get' include/linux/clk.h:281:27: note: previous definition of 'clk_get' was here arch/mips/txx9/generic/setup.c:97:5: error: redefinition of 'clk_enable' include/linux/clk.h:295:19: note: previous definition of 'clk_enable' was here arch/mips/txx9/generic/setup.c:103:6: error: redefinition of 'clk_disable' include/linux/clk.h:300:20: note: previous definition of 'clk_disable' was here arch/mips/txx9/generic/setup.c:108:15: error: redefinition of 'clk_get_rate' include/linux/clk.h:302:29: note: previous definition of 'clk_get_rate' was here arch/mips/txx9/generic/setup.c:114:6: error: redefinition of 'clk_put' include/linux/clk.h:291:20: note: previous definition of 'clk_put' was here make[3]: *** [arch/mips/txx9/generic/setup.o] Error 1 Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips@linux-mips.org Reviewed-by: John Crispin <blogic@openwrt.org> Patchwork: https://patchwork.linux-mips.org/patch/4142/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-08-01MIPS: BCM63xx: Fix redefinition of clk_* by adding select HAVE_CLKYoichi Yuasa
arch/mips/bcm63xx/clk.c:249:5: error: redefinition of 'clk_enable' include/linux/clk.h:295:19: note: previous definition of 'clk_enable' was here arch/mips/bcm63xx/clk.c:259:6: error: redefinition of 'clk_disable' include/linux/clk.h:300:20: note: previous definition of 'clk_disable' was here arch/mips/bcm63xx/clk.c:268:15: error: redefinition of 'clk_get_rate' include/linux/clk.h:302:29: note: previous definition of 'clk_get_rate' was here arch/mips/bcm63xx/clk.c:275:13: error: redefinition of 'clk_get' include/linux/clk.h:281:27: note: previous definition of 'clk_get' was here arch/mips/bcm63xx/clk.c:302:6: error: redefinition of 'clk_put' include/linux/clk.h:291:20: note: previous definition of 'clk_put' was here make[2]: *** [arch/mips/bcm63xx/clk.o] Error 1 Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips@linux-mips.org Reviewed-by: John Crispin <blogic@openwrt.org> Patchwork: https://patchwork.linux-mips.org/patch/4141/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-08-01MIPS: AR7: Fix redefinition of clk_* by adding select HAVE_CLKYoichi Yuasa
arch/mips/ar7/clock.c:420:5: error: redefinition of 'clk_enable' include/linux/clk.h:295:19: note: previous definition of 'clk_enable' was here arch/mips/ar7/clock.c:426:6: error: redefinition of 'clk_disable' include/linux/clk.h:300:20: note: previous definition of 'clk_disable' was here arch/mips/ar7/clock.c:431:15: error: redefinition of 'clk_get_rate' include/linux/clk.h:302:29: note: previous definition of 'clk_get_rate' was here arch/mips/ar7/clock.c:437:13: error: redefinition of 'clk_get' include/linux/clk.h:281:27: note: previous definition of 'clk_get' was here arch/mips/ar7/clock.c:454:6: error: redefinition of 'clk_put' include/linux/clk.h:291:20: note: previous definition of 'clk_put' was here make[2]: *** [arch/mips/ar7/clock.o] Error 1 Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips@linux-mips.org Reviewed-by: John Crispin <blogic@openwrt.org> Acked-by: Florian Fainelli <florian@openwrt.org> Patchwork: https://patchwork.linux-mips.org/patch/4140/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-08-01MIPS: Lantiq: Platform specific CLK fixupJohn Crispin
As we use CLKDEV_LOOKUP but dont have support for COMMON_CLK yet, we need to provide our own version of of_clk_get_from_provider(). Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4117/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-08-01MIPS: Lantiq: Add device_tree_init functionJohn Crispin
Add a lantiq specific version of device_tree_init. The generic MIPS version was removed by. commit 594e966bc412d64eec9282d28ce511bdd62fea39 Author: David Daney <david.daney@cavium.com> Date: Thu Jul 5 18:12:38 2012 +0200 MIPS: Prune some target specific code out of prom.c Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4116/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-08-01MIPS: Lantiq: Fix interface clock and PCI control register offsetJohn Crispin
The XRX200 based SoC have a different register offset for the interface clock and PCI control registers. This patch detects the SoC and sets the register offset at runtime. This make PCI work on the VR9 SoC. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4113/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-08-01delousing target_core_file a bitAl Viro
* set_fs(KERNEL_DS) + getname() is probably the weirdest implementation of strdup() I've seen. Especially since they don't to copy it at all... * filp_open() never returns NULL; it's ERR_PTR(-E...) on failure. * file->f_dentry is never going to be NULL, TYVM. * match_strdup() + snprintf() + kfree() is a bloody weird way to spell match_strlcpy(). Pox on cargo-cult programmers... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-08-01DM RAID: Add support for MD RAID10Jonathan Brassow
Support the MD RAID10 personality through dm-raid.c Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: NeilBrown <neilb@suse.de>
2012-08-01Merge commit 'c039c332f23e794deb6d6f37b9f07ff3b27fb2cf' into mdNeilBrown
Pull in pre-requisites for adding raid10 support to dm-raid.
2012-08-01block: remove dead func declarationYuanhan Liu
__generic_unplug_device() function is removed with commit 7eaceaccab5f40bbfda044629a6298616aeaed50, which forgot to remove the declaration at meantime. Here remove it. Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-08-01block: add partition resize function to blkpg ioctlVivek Goyal
Add a new operation code (BLKPG_RESIZE_PARTITION) to the BLKPG ioctl that allows altering the size of an existing partition, even if it is currently in use. This patch converts hd_struct->nr_sects into sequence counter because One might extend a partition while IO is happening to it and update of nr_sects can be non-atomic on 32bit machines with 64bit sector_t. This can lead to issues like reading inconsistent size of a partition. Sequence counter have been used so that readers don't have to take bdev mutex lock as we call sector_in_part() very frequently. Now all the access to hd_struct->nr_sects should happen using sequence counter read/update helper functions part_nr_sects_read/part_nr_sects_write. There is one exception though, set_capacity()/get_capacity(). I think theoritically race should exist there too but this patch does not modify set_capacity()/get_capacity() due to sheer number of call sites and I am afraid that change might break something. I have left that as a TODO item. We can handle it later if need be. This patch does not introduce any new races as such w.r.t set_capacity()/get_capacity(). v2: Add CONFIG_LBDAF test to UP preempt case as suggested by Phillip. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Phillip Susi <psusi@ubuntu.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-08-01block: uninitialized ioc->nr_tasks triggers WARN_ONOlof Johansson
Hi, I'm using the old-fashioned 'dump' backup tool, and I noticed that it spews the below warning as of 3.5-rc1 and later (3.4 is fine): [ 10.886893] ------------[ cut here ]------------ [ 10.886904] WARNING: at include/linux/iocontext.h:140 copy_process+0x1488/0x1560() [ 10.886905] Hardware name: Bochs [ 10.886906] Modules linked in: [ 10.886908] Pid: 2430, comm: dump Not tainted 3.5.0-rc7+ #27 [ 10.886908] Call Trace: [ 10.886911] [<ffffffff8107ce8a>] warn_slowpath_common+0x7a/0xb0 [ 10.886912] [<ffffffff8107ced5>] warn_slowpath_null+0x15/0x20 [ 10.886913] [<ffffffff8107c088>] copy_process+0x1488/0x1560 [ 10.886914] [<ffffffff8107c244>] do_fork+0xb4/0x340 [ 10.886918] [<ffffffff8108effa>] ? recalc_sigpending+0x1a/0x50 [ 10.886919] [<ffffffff8108f6b2>] ? __set_task_blocked+0x32/0x80 [ 10.886920] [<ffffffff81091afa>] ? __set_current_blocked+0x3a/0x60 [ 10.886923] [<ffffffff81051db3>] sys_clone+0x23/0x30 [ 10.886925] [<ffffffff8179bd73>] stub_clone+0x13/0x20 [ 10.886927] [<ffffffff8179baa2>] ? system_call_fastpath+0x16/0x1b [ 10.886928] ---[ end trace 32a14af7ee6a590b ]--- Reproducing is easy, I can hit it on a KVM system with a very basic config (x86_64 make defconfig + enable the drivers needed). To hit it, just install dump (on debian/ubuntu, not sure what the package might be called on Fedora), and: dump -o -f /tmp/foo / You'll see the warning in dmesg once it forks off the I/O process and starts dumping filesystem contents. I bisected it down to the following commit: commit f6e8d01bee036460e03bd4f6a79d014f98ba712e Author: Tejun Heo <tj@kernel.org> Date: Mon Mar 5 13:15:26 2012 -0800 block: add io_context->active_ref Currently ioc->nr_tasks is used to decide two things - whether an ioc is done issuing IOs and whether it's shared by multiple tasks. This patch separate out the first into ioc->active_ref, which is acquired and released using {get|put}_io_context_active() respectively. This will be used to associate bio's with a given task. This patch doesn't introduce any visible behavior change. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> It seems like the init of ioc->nr_tasks was removed in that patch, so it starts out at 0 instead of 1. Tejun, is the right thing here to add back the init, or should something else be done? The below patch removes the warning, but I haven't done any more extensive testing on it. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Tejun Heo <tj@kernel.org> Cc: stable@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-08-01block: do not artificially constrain max_sectors for stacking driversMike Snitzer
blk_set_stacking_limits is intended to allow stacking drivers to build up the limits of the stacked device based on the underlying devices' limits. But defaulting 'max_sectors' to BLK_DEF_MAX_SECTORS (1024) doesn't allow the stacking driver to inherit a max_sectors larger than 1024 -- due to blk_stack_limits' use of min_not_zero. It is now clear that this artificial limit is getting in the way so change blk_set_stacking_limits's max_sectors to UINT_MAX (which allows stacking drivers like dm-multipath to inherit 'max_sectors' from the underlying paths). Reported-by: Vijay Chauhan <vijay.chauhan@netapp.com> Tested-by: Vijay Chauhan <vijay.chauhan@netapp.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>