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2011-06-05Merge branch 'for-linus' of ↵Linus Torvalds19-468/+635
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (25 commits) btrfs: fix uninitialized variable warning btrfs: add helper for fs_info->closing Btrfs: add mount -o inode_cache btrfs: scrub: add explicit plugging btrfs: use btrfs_ino to access inode number Btrfs: don't save the inode cache if we are deleting this root btrfs: false BUG_ON when degraded Btrfs: don't save the inode cache in non-FS roots Btrfs: make sure we don't overflow the free space cache crc page Btrfs: fix uninit variable in the delayed inode code btrfs: scrub: don't reuse bios and pages Btrfs: leave spinning on lookup and map the leaf Btrfs: check for duplicate entries in the free space cache Btrfs: don't try to allocate from a block group that doesn't have enough space Btrfs: don't always do readahead Btrfs: try not to sleep as much when doing slow caching Btrfs: kill BTRFS_I(inode)->block_group Btrfs: don't look at the extent buffer level 3 times in a row Btrfs: map the node block when looking for readahead targets Btrfs: set range_start to the right start in count_range_bits ...
2011-06-04drm/i915: Add a no lvds quirk for the Asus EeeBox PC EB1007Hans de Goede1-0/+8
I found this while figuring out why gnome-shell would not run on my Asus EeeBox PC EB1007. As a standalone "pc" this device cleary does not have an internal panel, yet it claims it does. Add a quirk to fix this. Signed-off-by: Hans de Goede <[email protected]> Reviewed-by: Keith Packard <[email protected]> cc: [email protected] Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm/i915: Share the common force-audio property between connectorsChris Wilson6-37/+38
Make the audio property creation routine common and share the single property between the connectors. Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Keith Packard <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm/i915: Remove unused enum "chip_family"Chris Wilson1-7/+0
Superseded by the tracking the render generation in the chipset capabiltiies struct. Signed-off-by: Chris Wilson <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm/915: fix relaxed tiling on gen2: tile heightDaniel Vetter1-2/+3
A tile on gen2 has a size of 2kb, stride of 128 bytes and 16 rows. Userspace was broken and assumed 8 rows. Chris Wilson noted that the kernel unfortunately can't reliable check that because libdrm rounds up the size to the next bucket. Signed-off-by: Daniel Vetter <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm/i915/crt: Explicitly return false if connected to a digital monitorChris Wilson1-0/+4
Rather than proceed on and silently return false by default, mention why we rejected the presence of an EDID as implying the presence of a VGA monitor. (The question arises whether there is a broken EDID which falsely reports a digital connection when attached by VGA.) Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Keith Packard <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm/i915: Replace ironlake_compute_wm0 with g4x_compute_wm0Chris Wilson1-68/+20
The computation of the first-level watermarks for g4x and gen5+ are based on the same algorithm, so we can refactor those code paths to use a single function. Note that g4x_compute_wm0 takes a 'plane' argument while ironlake_compute_wm0 took a 'pipe' argument. Both should have used a 'plane' argument, so this patch fixes that as well (not that it caused a problem; ironlake always uses pipe == plane). Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Keith Packard <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm/i915: Only print out the actual number of fences for i915_error_stateDaniel Vetter1-1/+1
Signed-off-by: Daniel Vetter <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Keith Packard <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm/i915: s/addr & ~PAGE_MASK/offset_in_page(addr)/Chris Wilson1-11/+10
Convert our open coded offset_in_page() to the common macro. Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Keith Packard <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm: i915: correct return status in intel_hdmi_mode_valid()Nicolas Kaiser1-1/+1
Signed-off-by: Nicolas Kaiser <[email protected]> Reviewed-by: Keith Packard <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm/i915: fix regression after clock gating init splitJason Stubbs1-0/+1
During the refactoring in revision 6067aaeadb5b3df26f27ac827256b1ef01e674f5, the intel_enable_clock_gating was split up into several functions that are then called indirectly. However, which function to call was not specified for the IS_PINEVIEW() case. This patch specifies the correct gating function. Signed-off-by: Jason Stubbs <[email protected]> Reviewed-by: Jesse Barnes <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04drm/i915: fix if statement in ivybridge irq handlerDan Carpenter1-1/+1
The extra semicolon was not intended. Signed-off-by: Dan Carpenter <[email protected]> Reviewed-by: Keith Packard <[email protected]> Signed-off-by: Keith Packard <[email protected]>
2011-06-04hwmon: (max6642): Better chip detection schemaPer Dalén1-2/+16
Improve detection of MAX6642 by reading non existing registers (0x04, 0x06 and 0xff). Reading those registers returns the previously read value. Signed-off-by: Per Dalen <[email protected]> [[email protected]: added second set of register reads] Signed-off-by: Guenter Roeck <[email protected]>
2011-06-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds2-1/+2
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] Fix oops caused by queue refcounting failure
2011-06-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds60-219/+380
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits) tg3: Fix tg3_skb_error_unmap() net: tracepoint of net_dev_xmit sees freed skb and causes panic drivers/net/can/flexcan.c: add missing clk_put net: dm9000: Get the chip in a known good state before enabling interrupts drivers/net/davinci_emac.c: add missing clk_put af-packet: Add flag to distinguish VID 0 from no-vlan. caif: Fix race when conditionally taking rtnl lock usbnet/cdc_ncm: add missing .reset_resume hook vlan: fix typo in vlan_dev_hard_start_xmit() net/ipv4: Check for mistakenly passed in non-IPv4 address iwl4965: correctly validate temperature value bluetooth l2cap: fix locking in l2cap_global_chan_by_psm ath9k: fix two more bugs in tx power cfg80211: don't drop p2p probe responses Revert "net: fix section mismatches" drivers/net/usb/catc.c: Fix potential deadlock in catc_ctrl_run() sctp: stop pending timers and purge queues when peer restart asoc drivers/net: ks8842 Fix crash on received packet when in PIO mode. ip_options_compile: properly handle unaligned pointer iwlagn: fix incorrect PCI subsystem id for 6150 devices ...
2011-06-04btrfs: fix uninitialized variable warningDavid Sterba1-1/+1
With Linus' tree, today's linux-next build (powercp ppc64_defconfig) produced this warning: fs/btrfs/delayed-inode.c: In function 'btrfs_delayed_update_inode': fs/btrfs/delayed-inode.c:1598:6: warning: 'ret' may be used uninitialized in this function Introduced by commit 16cdcec736cd ("btrfs: implement delayed inode items operation"). This fixes a bug in btrfs_update_inode(): if the returned value from btrfs_delayed_update_inode is a nonzero garbage, inode stat data are not updated and several call paths may hit a BUG_ON or fail with strange code. Reported-by: Stephen Rothwell <[email protected]> Signed-off-by: David Sterba <[email protected]>
2011-06-04btrfs: add helper for fs_info->closingDavid Sterba8-16/+20
wrap checking of filesystem 'closing' flag and fix a few missing memory barriers. Signed-off-by: David Sterba <[email protected]>
2011-06-04Btrfs: add mount -o inode_cacheChris Mason4-1/+34
This makes the inode map cache default to off until we fix the overflow problem when the free space crcs don't fit inside a single page. Signed-off-by: Chris Mason <[email protected]>
2011-06-04btrfs: scrub: add explicit pluggingArne Jansen1-3/+4
With the removal of the implicit plugging scrub ends up doing more and smaller I/O than necessary. This patch adds explicit plugging per chunk. Signed-off-by: Arne Jansen <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2011-06-04btrfs: use btrfs_ino to access inode numberDavid Sterba2-4/+5
commit 4cb5300bc ("Btrfs: add mount -o auto_defrag") accesses inode number directly while it should use the helper with the new inode number allocator. Signed-off-by: David Sterba <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2011-06-04Btrfs: don't save the inode cache if we are deleting this rootJosef Bacik1-0/+5
With xfstest 254 I can panic the box every time with the inode number caching stuff on. This is because we clean the inodes out when we delete the subvolume, but then we write out the inode cache which adds an inode to the subvolume inode tree, and then when it gets evicted again the root gets added back on the dead roots list and is deleted again, so we have a double free. To stop this from happening just return 0 if refs is 0 (and we're not the tree root since tree root always has refs of 0). With this fix 254 no longer panics. Thanks, Signed-off-by: Josef Bacik <[email protected]> Tested-by: David Sterba <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2011-06-04btrfs: false BUG_ON when degradedArne Jansen1-1/+1
In degraded mode the struct btrfs_device of missing devs don't have device->name set. A kstrdup of NULL correctly returns NULL. Don't BUG in this case. Signed-off-by: Arne Jansen <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2011-06-04Btrfs: don't save the inode cache in non-FS rootsliubo1-0/+6
This adds extra checks to make sure the inode map we are caching really belongs to a FS root instead of a special relocation tree. It prevents crashes during balancing operations. Signed-off-by: Liu Bo <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2011-06-04Btrfs: make sure we don't overflow the free space cache crc pageChris Mason1-8/+19
The free space cache uses only one page for crcs right now, which means we can't have a cache file bigger than the crcs we can fit in the first page. This adds a check to enforce that restriction. Signed-off-by: Chris Mason <[email protected]>
2011-06-04Btrfs: fix uninit variable in the delayed inode codeChris Mason1-0/+1
The nitems counter needs to start at zero Signed-off-by: Chris Mason <[email protected]>
2011-06-04btrfs: scrub: don't reuse bios and pagesArne Jansen1-49/+65
The current scrub implementation reuses bios and pages as often as possible, allocating them only on start and releasing them when finished. This leads to more problems with the block layer than it's worth. The elevator gets confused when there are more pages added to the bio than bi_size suggests. This patch completely rips out the reuse of bios and pages and allocates them freshly for each submit. Signed-off-by: Arne Jansen <[email protected]> Signed-off-by: Chris Maosn <[email protected]>
2011-06-04Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds9-28/+41
* 'for-linus' of git://git.kernel.dk/linux-block: block: Use hlist_entry() for io_context.cic_list.first cfq-iosched: Remove bogus check in queue_fail path xen/blkback: potential null dereference in error handling xen/blkback: don't call vbd_size() if bd_disk is NULL block: blkdev_get() should access ->bd_disk only after success CFQ: Fix typo and remove unnecessary semicolon block: remove unwanted semicolons Revert "block: Remove extra discard_alignment from hd_struct." nbd: adjust 'max_part' according to part_shift nbd: limit module parameters to a sane value nbd: pass MSG_* flags to kernel_recvmsg() block: improve the bio_add_page() and bio_add_pc_page() descriptions
2011-06-04Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: Blackfin: strncpy: fix handling of zero lengths
2011-06-04Merge branch 'stable' of ↵Linus Torvalds2-2/+4
git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: asm-generic/unistd.h: support sendmmsg syscall tile: enable CONFIG_BUGVERBOSE
2011-06-04Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6Linus Torvalds9-97/+136
* 'linux-next' of git://git.infradead.org/ubifs-2.6: UBIFS: fix-up free space earlier UBIFS: intialize LPT earlier UBIFS: assert no fixup when writing a node UBIFS: fix clean znode counter corruption in error cases UBIFS: fix memory leak on error path UBIFS: fix shrinker object count reports UBIFS: fix recovery broken by the previous recovery fix UBIFS: amend ubifs_recover_leb interface UBIFS: introduce a "grouped" journal head flag UBIFS: supress false error messages
2011-06-04Merge branch 'for-linus' of ↵Linus Torvalds1-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest: ktest: Ignore unset values of the minconfig in config_bisect ktest: Fix result of rebooting the kernel ktest: Fix off-by-one in config bisect result
2011-06-04Merge branch 'rmobile-fixes-for-linus' of ↵Linus Torvalds3-0/+141
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: ARM: mach-shmobile: add DMAC clock definitions on SH7372 ARM: arch-shmobile: support SDHI card detection on mackerel, using a GPIO sh_mobile_meram: MERAM platform data for LCDC
2011-06-03usb: remove bad dput after dentry_unhashSage Weil1-1/+0
Commit 64252c75a removed the useless dget from dentry_unhash but didn't fix up this caller in the usb code. There used to be exactly one dput per dentry_unhash call; now there are none. Tested-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Sage Weil <[email protected]> Signed-off-by: Al Viro <[email protected]>
2011-06-03more conservative S_NOSEC handlingAl Viro6-5/+8
Caching "we have already removed suid/caps" was overenthusiastic as merged. On network filesystems we might have had suid/caps set on another client, silently picked by this client on revalidate, all of that *without* clearing the S_NOSEC flag. AFAICS, the only reasonably sane way to deal with that is * new superblock flag; unless set, S_NOSEC is not going to be set. * local block filesystems set it in their ->mount() (more accurately, mount_bdev() does, so does btrfs ->mount(), users of mount_bdev() other than local block ones clear it) * if any network filesystem (or a cluster one) wants to use S_NOSEC, it'll need to set MS_NOSEC in sb->s_flags *AND* take care to clear S_NOSEC when inode attribute changes are picked from other clients. It's not an earth-shattering hole (anybody that can set suid on another client will almost certainly be able to write to the file before doing that anyway), but it's a bug that needs fixing. Signed-off-by: Al Viro <[email protected]>
2011-06-04Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds14-45/+39
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: dmaengine: shdma: fix a regression: initialise DMA channels for memcpy dmaengine: shdma: Fix up fallout from runtime PM changes. Revert "clocksource: sh_cmt: Runtime PM support" Revert "clocksource: sh_tmu: Runtime PM support" sh: Fix up asm-generic/ptrace.h fallout. sh64: Move from P1SEG to CAC_ADDR for consistent sync. sh64: asm/pgtable.h needs asm/mmu.h sh: asm/tlb.h needs linux/swap.h sh: mark DMA slave ID 0 as invalid sh: Update shmin to reflect PIO dependency. sh: arch/sh/kernel/process_32.c needs linux/prefetch.h. sh: add MMCIF runtime PM support on ecovec sh: switch ap325rxa to dynamically manage the platform camera
2011-06-04Revert "ASoC: Update cx20442 for TTY API change"Linus Torvalds1-5/+3
This reverts commit ed0bd2333cffc3d856db9beb829543c1dfc00982. Since we reverted the TTY API change, we should revert the ASoC update to it too. Cc: Mark Brown <[email protected]> Cc: Liam Girdwood <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-06-04Revert "tty: make receive_buf() return the amout of bytes received"Linus Torvalds20-128/+115
This reverts commit b1c43f82c5aa265442f82dba31ce985ebb7aa71c. It was broken in so many ways, and results in random odd pty issues. It re-introduced the buggy schedule_work() in flush_to_ldisc() that can cause endless work-loops (see commit a5660b41af6a: "tty: fix endless work loop when the buffer fills up"). It also used an "unsigned int" return value fo the ->receive_buf() function, but then made multiple functions return a negative error code, and didn't actually check for the error in the caller. And it didn't actually work at all. BenH bisected down odd tty behavior to it: "It looks like the patch is causing some major malfunctions of the X server for me, possibly related to PTYs. For example, cat'ing a large file in a gnome terminal hangs the kernel for -minutes- in a loop of what looks like flush_to_ldisc/workqueue code, (some ftrace data in the quoted bits further down). ... Some more data: It -looks- like what happens is that the flush_to_ldisc work queue entry constantly re-queues itself (because the PTY is full ?) and the workqueue thread will basically loop forver calling it without ever scheduling, thus starving the consumer process that could have emptied the PTY." which is pretty much exactly the problem we fixed in a5660b41af6a. Milton Miller pointed out the 'unsigned int' issue. Reported-by: Benjamin Herrenschmidt <[email protected]> Reported-by: Milton Miller <[email protected]> Cc: Stefan Bigler <[email protected]> Cc: Toby Gray <[email protected]> Cc: Felipe Balbi <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-06-03Merge branch 'master' of ↵John W. Linville15-70/+155
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into for-davem
2011-06-03ALSA: usb - turn off de-emphasis in s/pdif for cm6206Eric Lammerts1-1/+1
CM6206: Turn off de-emphasis channel status bit in S/PDIF output. Signed-off-by: Eric Lammerts <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2011-06-03UBIFS: fix-up free space earlierBen Gardiner1-8/+8
The free space fixup is currently initiated during mount after the call to ubifs_write_master() which results in a write to PEBs; this has been observed with the patch 'assert no fixup when writing a node' applied: Move the free space fixup on mount to before the calls to ubifs_recover_inl_heads() and ubifs_write_master(). This results in no assertions with the previously mentioned patch applied. Artem: tweaked the patch a bit Signed-off-by: Ben Gardiner <bengardiner@nanometrics> Reviewed-by: Matthew L. Creech <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2011-06-03UBIFS: intialize LPT earlierBen Gardiner1-13/+16
The current 'mount_ubifs()' implementation does not initialize the LPT until the the master node is marked dirty. Move the LPT initialization to before marking the master node dirty. This is a preparation for the next patch which will move the free-space-fixup check to before marking the master node dirty, because we have to fix-up the free space before doing any writes. Artem: massaged the patch and commit message. Signed-off-by: Ben Gardiner <[email protected]> Reviewed-by: Matthew L. Creech <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2011-06-03UBIFS: assert no fixup when writing a nodeBen Gardiner1-0/+2
The current free space fixup can result in some writing to the UBI volume when the space_fixup flag is set. To catch instances where UBIFS is writing to the NAND while the space_fixup flag is set, add an assert to ubifs_write_node(). Artem: tweaked the patch, added similar assertion to the write buffer write path. Signed-off-by: Ben Gardiner <[email protected]> Reviewed-by: Matthew L. Creech <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2011-06-03UBIFS: fix clean znode counter corruption in error casesArtem Bityutskiy1-4/+5
UBIFS maintains per-filesystem and global clean znode counters ('c->clean_zn_cnt' and 'ubifs_clean_zn_cnt'). It is important to maintain correct values there since the shrinker relies on 'ubifs_clean_zn_cnt'. However, in case of failures during commit the counters were corrupted. E.g., if a failure happens in the middle of 'write_index()', then some nodes in the commit list ('c->cnext') are marked as clean, and some are marked as dirty. And the 'ubifs_destroy_tnc_subtree()' frees does not retrun correct count, and we end up with non-zero 'c->clean_zn_cnt' when unmounting. This means that if we have 2 file-sytem and one of them fails, and we unmount it, 'ubifs_clean_zn_cnt' stays incorrect and confuses the shrinker. Signed-off-by: Artem Bityutskiy <[email protected]>
2011-06-03UBIFS: fix memory leak on error pathArtem Bityutskiy1-0/+1
UBIFS leaks memory on error path in 'ubifs_jnl_update()' in case of write failure because it forgets to free the 'struct ubifs_dent_node *dent' object. Although the object is small, the alignment can make it large - e.g., 2KiB if the min. I/O unit is 2KiB. Signed-off-by: Artem Bityutskiy <[email protected]> Cc: [email protected]
2011-06-03UBIFS: fix shrinker object count reportsArtem Bityutskiy1-1/+5
Sometimes VM asks the shrinker to return amount of objects it can shrink, and we return the ubifs_clean_zn_cnt in that case. However, it is possible that this counter is negative for a short period of time, due to the way UBIFS TNC code updates it. And I can observe the following warnings sometimes: shrink_slab: ubifs_shrinker+0x0/0x2b7 [ubifs] negative objects to delete nr=-8541616642706119788 This patch makes sure UBIFS never returns negative count of objects. Signed-off-by: Artem Bityutskiy <[email protected]> Cc: [email protected]
2011-06-03Blackfin: strncpy: fix handling of zero lengthsSteven Miao1-1/+1
The jump to 4f will cause the NUL padding loop to run at least one time, so if string length is zero just jump to the end. Otherwise we wrongly write one NUL byte when size==0. Signed-off-by: Steven Miao <[email protected]> Signed-off-by: Mike Frysinger <[email protected]>
2011-06-03timers: Consider slack value in mod_timer()Sebastian Andrzej Siewior1-8/+7
There is an optimization which does not update the timer if the timer was pending and the expiration time was unchanged. Since commit 3bbb9ec9 ("timers: Introduce the concept of timer slack for legacy timers") this optimization is no longer applied for timers where the expiration time got extended due to the slack value. So we need to check again after the expiration time might have been updated. [ tglx: Made it a single check by applying slack first and sorting out the slack = 0 value (all timeouts < 256 jiffies) early ] Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2011-06-03genirq: Ensure we locate the passed IRQ in irq_alloc_descs()Mark Brown1-0/+6
When irq_alloc_descs() is called with no base IRQ specified then it will search for a range of IRQs starting from a specified base address. In the case where an IRQ is specified it still does this search in order to ensure that none of the requested range is already allocated and it still uses the from parameter to specify the base for the search. This means that in the case where a base is specified but from is zero (which is reasonable as any IRQ number is in the range specified by a zero from) the function will get confused and try to allocate the first suitably sized block of free IRQs it finds. Instead use a specified IRQ as the base address for the search, and insist that any from that is specified can support that IRQ. Signed-off-by: Mark Brown <[email protected]> Link: http://lkml.kernel.org/r/1307037313-15733-1-git-send-email-broonie@opensource.wolfsonmicro.com Signed-off-by: Thomas Gleixner <[email protected]>
2011-06-03genirq: Fix descriptor init on non-sparse IRQsLinus Walleij1-5/+3
The genirq changes are initializing descriptors for sparse IRQs quite differently from how non-sparse (stacked?) IRQs are initialized, with the effect that on my platform all IRQs are default-disabled on sparse IRQs and default-enabled if non-sparse IRQs are used, crashing some GPIO driver. Fix this by refactoring the non-sparse IRQs to use the same descriptor init function as the sparse IRQs. Signed-off: Linus Walleij <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Cc: [email protected] # 2.6.39 Signed-off-by: Thomas Gleixner <[email protected]>
2011-06-03irq: Handle spurios irq detection for threaded irqsSebastian Andrzej Siewior4-19/+39
The detection of spurios interrupts is currently limited to first level handler. In force-threaded mode we never notice if the threaded irq does not feel responsible. This patch catches the return value of the threaded handler and forwards it to the spurious detector. If the primary handler returns only IRQ_WAKE_THREAD then the spourious detector ignores it because it gets called again from the threaded handler. [ tglx: Report the erroneous return value early and bail out ] Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
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