Hans de Goede
6ec4147e7b
usb-anchor: Delay usb_wait_anchor_empty_timeout wake up till completion is done ...
usb_wait_anchor_empty_timeout() should wait till the completion handler
has run. Both the zd1211rw driver and the uas driver (in its task mgmt) depend
on the completion handler having completed when usb_wait_anchor_empty_timeout()
returns, as they read state set by the completion handler after an
usb_wait_anchor_empty_timeout() call.
But __usb_hcd_giveback_urb() calls usb_unanchor_urb before calling the
completion handler. This is necessary as the completion handler may
re-submit and re-anchor the urb. But this introduces a race where the state
these drivers want to read has not been set yet by the completion handler
(this race is easily triggered with the uas task mgmt code).
I've considered adding an anchor_count to struct urb, which would be
incremented on anchor and decremented on unanchor, and then only actually
do the anchor / unanchor on 0 -> 1 and 1 -> 0 transtions, combined with
moving the unanchor call in hcd_giveback_urb to after calling the completion
handler. But this will only work if urb's are only re-anchored to the same
anchor as they were anchored to before the completion handler ran.
And at least one driver re-anchors to another anchor from the completion
handler (rtlwifi).
So I have come up with this patch instead, which adds the ability to
suspend wakeups of usb_wait_anchor_empty_timeout() waiters to the usb_anchor
functionality, and uses this in __usb_hcd_giveback_urb() to delay wake-ups
until the completion handler has run.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-11 16:33:58 -07:00
dmaengine: PL08x: Add support for PL080S variant
2013-09-02 11:49:56 +05:30
bcma: make bcma_core_pci_{up,down}() callable from atomic context
2013-09-26 14:02:33 -04:00
libceph: add function to ensure notifies are complete
2013-09-09 11:15:49 -07:00
fsl /bestcomm
usb: phy: twl4030: use the new generic PHY framework
2013-09-27 17:36:58 -07:00
ARM: SoC late changes for v3.12
2013-09-09 16:35:29 -07:00
MMC highlights for 3.12:
2013-09-10 13:33:09 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-09-05 14:54:29 -07:00
mtd: add a new ecc_step_size field to mtd_info{}
2013-08-30 21:37:01 +01:00
netfilter: ipset: Consistent userspace testing with nomatch flag
2013-09-16 20:35:55 +02:00
drivers: phy: add generic PHY framework
2013-09-27 17:35:41 -07:00
pinctrl: Pass all configs to driver on pin_config_set()
2013-08-28 13:34:41 +02:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
2013-09-12 11:35:33 -07:00
power: Add twl4030_madc battery driver.
2013-08-30 17:34:52 -07:00
md update for v3.12
2013-09-10 13:03:41 -07:00
regulator: fix fatal kernel-doc error
2013-09-17 11:49:25 +01:00
MMC highlights for 3.12:
2013-09-10 13:33:09 -07:00
Merge branch 'nfsd-next' of git://linux-nfs.org/~bfields/linux
2013-09-10 20:04:59 -07:00
Merge 3.12-rc4 into usb-next
2013-10-06 17:33:56 -07:00
mm/page-writeback.c: add strictlimit feature
2013-09-11 15:58:04 -07:00
mm: avoid reinserting isolated balloon pages into LRU lists
2013-09-30 14:31:02 -07:00
exec: kill "int depth" in search_binary_handler()
2013-09-11 15:59:04 -07:00
block: Add nr_bios to block_rq_remap tracepoint
2013-09-21 13:57:47 -06:00
direct-io: Implement generic deferred AIO completions
2013-09-04 09:23:46 -04:00
userns: Kill nsown_capable it makes the wrong thing easy
2013-08-30 23:44:11 -07:00
clk: wrap I/O access for improved portability
2013-08-27 17:50:38 -07:00
block: support embedded device command line partition
2013-09-11 15:56:57 -07:00
syscalls.h: add forward declarations for inplace syscall wrappers
2013-09-11 15:58:25 -07:00
Remove GENERIC_HARDIRQ config option
2013-09-13 15:09:52 +02:00
Revert "cpufreq: make sure frequency transitions are serialized"
2013-09-10 02:54:50 +02:00
vmcore: introduce remap_oldmem_pfn_range()
2013-09-11 15:59:10 -07:00
Reinstate "crypto: crct10dif - Wrap crc_t10dif function all to use crypto transform framework"
2013-09-07 12:56:26 +10:00
super: fix calculation of shrinkable objects for small numbers
2013-09-10 18:56:29 -04:00
debugfs: provide debugfs_create_x64() when disabled
2013-08-27 22:09:12 -07:00
dm mpath: disable WRITE SAME if it fails
2013-09-20 10:36:34 -04:00
Merge branch 'for-v3.12' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
2013-09-09 10:26:33 -07:00
drivers: dma-contiguous: clean source code and prepare for device tree
2013-08-27 09:18:29 +02:00
drivers:net: Convert dma_alloc_coherent(...__GFP_ZERO) to dma_zalloc_coherent
2013-08-29 21:55:23 -04:00
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
2013-09-10 13:37:36 -07:00
net: etherdevice: add address inherit helper
2013-09-03 20:57:49 -04:00
Kill indirect include of file.h from eventfd.h, use fdget() in cgroup.c
2013-09-07 19:54:57 -04:00
a trivial writeback fix
2013-09-13 23:06:40 -04:00
vfs: move get_fs_root_and_pwd() to single caller
2013-09-12 10:12:47 -07:00
FS-Cache: Add interface to check consistency of a cached object
2013-09-06 09:17:30 +01:00
fscache: Netfs function for cleanup post readpages
2013-09-06 09:17:30 +01:00
Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
2013-09-03 07:41:11 +02:00
lib/genalloc.c: fix overflow of ending address of memory chunk
2013-09-11 15:57:35 -07:00
Remove GENERIC_HARDIRQ config option
2013-09-13 15:09:52 +02:00
video/hdmi: Rename HDMI_IDENTIFIER to HDMI_IEEE_OUI
2013-08-30 08:42:01 +10:00
HID: provide a helper for validating hid reports
2013-09-13 15:11:21 +02:00
thp: consolidate code between handle_mm_fault() and do_huge_pmd_anonymous_page()
2013-09-12 15:38:03 -07:00
mm: migrate: check movability of hugepage in unmap_and_move_huge_page()
2013-09-11 15:57:49 -07:00
Drivers: hv: util: Correctly support ws2008R2 and earlier
2013-09-26 14:20:21 -07:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2013-08-29 14:08:24 -04:00
initmpfs: move rootfs code from fs/ramfs/ to init/
2013-09-11 15:59:37 -07:00
x86/iommu: correct ICS register offset
2013-09-24 13:04:07 +02:00
Remove GENERIC_HARDIRQ config option
2013-09-13 15:09:52 +02:00
ipc: rename ids->rw_mutex
2013-09-11 15:59:42 -07:00
ipv6: drop fragmented ndisc packets by default (RFC 6980)
2013-08-29 15:32:08 -04:00
Remove GENERIC_HARDIRQ config option
2013-09-13 15:09:52 +02:00
Remove GENERIC_HARDIRQ config option
2013-09-13 15:09:52 +02:00
Remove GENERIC_HARDIRQ config option
2013-09-13 15:09:52 +02:00
lib: introduce upper case hex ascii helpers
2013-09-20 15:38:26 -04:00
Remove GENERIC_HARDIRQ config option
2013-09-13 15:09:52 +02:00
sysfs: Restrict mounting sysfs
2013-08-28 21:35:14 -07:00
kprobes: allow to specify custom allocator for insn caches
2013-09-11 15:58:52 -07:00
KVM: mmu: allow page tables to be in read-only slots
2013-09-17 12:52:31 +03:00
list_lru: dynamically adjust node arrays
2013-09-10 18:56:32 -04:00
lockref: add ability to mark lockrefs "dead"
2013-09-07 15:49:18 -07:00
lz4: fix compression/decompression signedness mismatch
2013-09-11 15:59:45 -07:00
memblock, numa: binary search node id
2013-09-11 15:57:51 -07:00
revert "memcg, vmscan: integrate soft reclaim tighter with zone shrinking code"
2013-09-24 17:00:26 -07:00
mm: migrate: remove VM_HUGETLB from vma flag check in vma_migratable()
2013-09-11 15:57:48 -07:00
Merge git://git.kvack.org/~bcrl/aio-next
2013-09-13 10:55:58 -07:00
thp: consolidate code between handle_mm_fault() and do_huge_pmd_anonymous_page()
2013-09-12 15:38:03 -07:00
mm: vmscan: fix do_try_to_free_pages() livelock
2013-09-11 15:58:01 -07:00
Merge git://git.kvack.org/~bcrl/aio-next
2013-09-13 10:55:58 -07:00
mm: vmscan: fix do_try_to_free_pages() livelock
2013-09-11 15:58:01 -07:00
Revert "Input: introduce BTN/ABS bits for drums and guitars"
2013-09-07 09:48:41 -07:00
module: Fix mod->mkobj.kobj potentially freed too early
2013-09-03 16:35:47 +09:30
mutex: replace CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX with simple ifdef
2013-09-28 12:46:21 +02:00
introduce kern_path_mountpoint()
2013-09-08 20:20:23 -04:00
vxlan: Fix sparse warnings
2013-09-15 22:18:13 -04:00
netfilter: nf_conntrack: make sequence number adjustments usuable without NAT
2013-08-28 00:26:48 +02:00
NFS: Ensure that rmdir() waits for sillyrenames to complete
2013-09-03 15:26:29 -04:00
NFSv4.1 Use MDS auth flavor for data server connection
2013-09-06 14:49:16 -04:00
NFSv4: Honour the 'opened' parameter in the atomic_open() filesystem method
2013-09-26 10:20:18 -04:00
Rename nsproxy.pid_ns to nsproxy.pid_ns_for_children
2013-08-27 13:52:52 -04:00
NVMe: Use normal shutdown
2013-09-03 16:40:32 -04:00
Device tree core updates for v3.12
2013-09-10 13:53:52 -07:00
Device tree core updates for v3.12
2013-09-10 13:53:52 -07:00
of: clean-up ifdefs in of_irq.h
2013-09-24 21:12:32 -05:00
of: Make of_get_phy_mode() return int i.s.o. const int
2013-08-28 20:50:19 +01:00
drivers: of: add initialization code for dma reserved memory
2013-08-27 10:53:44 +02:00
oprofile: get rid of pointless forward declarations of struct super_block
2013-09-03 22:52:48 -04:00
ARM: SoC platform changes for 3.12
2013-09-06 13:30:06 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2013-09-05 14:54:29 -07:00
SCSI misc on 20130915
2013-09-15 17:41:30 -04:00
idr: Percpu ida
2013-09-09 14:29:15 -07:00
Merge branch 'x86-spinlocks-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-09-04 11:55:10 -07:00
power_supply: Prevent suspend until power supply events are processed
2013-08-27 18:42:48 -07:00
lib/radix-tree.c: make radix_tree_node_alloc() work correctly within interrupt
2013-09-11 15:59:36 -07:00
initmpfs: move rootfs code from fs/ramfs/ to init/
2013-09-11 15:59:37 -07:00
rbtree: add rbtree_postorder_for_each_entry_safe() helper
2013-09-11 15:59:20 -07:00
nohz_full: Add full-system-idle state machine
2013-08-31 14:43:50 -07:00
regmap: Updates for v3.12
2013-09-03 10:07:40 -07:00
memcg: rename RESOURCE_MAX to RES_COUNTER_MAX
2013-09-12 15:38:02 -07:00
mm: memcg: do not trap chargers with full callstack on OOM
2013-09-12 15:38:02 -07:00
seqlock: Add a new locking reader type
2013-09-12 09:25:23 -07:00
DMA: shdma: remove private and unused defines from a global header
2013-08-27 14:25:27 +05:30
DMA: shdma: switch DT mode to use configuration data from a match table
2013-08-27 14:25:09 +05:30
shrinker: Kill old ->shrink API.
2013-09-10 18:56:32 -04:00
Introduce [compat_]save_altstack_ex() to unbreak x86 SMAP
2013-09-01 14:16:33 -07:00
skbuff: size of hole is wrong in a comment
2013-09-30 22:32:39 -07:00
slab: Use correct GFP_DMA constant
2013-09-04 23:11:42 +03:00
mm/sl[aou]b: Move kmallocXXX functions to common code
2013-09-04 20:51:33 +03:00
slub: remove verify_mem_not_deleted()
2013-09-04 20:53:16 +03:00
watchdog: update watchdog_thresh properly
2013-09-24 17:00:25 -07:00
driver:net:stmmac: Disable DMA store and forward mode if platform data force_thresh_dma_mode is set.
2013-08-30 17:26:09 -04:00
mm: make lru_add_drain_all() selective
2013-09-12 15:38:02 -07:00
syscalls.h: add forward declarations for inplace syscall wrappers
2013-09-11 15:58:25 -07:00
sysfs: sysfs_create_groups returns a value.
2013-08-28 09:51:41 -07:00
tegra-cpuidle: provide stub when !CONFIG_CPU_IDLE
2013-08-29 13:54:34 -07:00
thermal: thermal_core: allow binding with limits on bind_params
2013-09-03 09:10:24 -04:00
timekeeping: Fix HRTICK related deadlock from ntp lock changes
2013-09-12 07:49:51 +02:00
usb-anchor: Delay usb_wait_anchor_empty_timeout wake up till completion is done
2013-10-11 16:33:58 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2013-09-07 14:35:32 -07:00
gpu/vga_switcheroo: add driver control power feature. (v3)
2013-08-29 13:30:21 +10:00
i915: Update VGA arbiter support for newer devices
2013-09-03 19:17:59 +02:00
mm: vmstats: track TLB flush stats on UP too
2013-09-11 15:57:09 -07:00
Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2013-09-03 18:25:03 -07:00
mm: vmscan: fix do_try_to_free_pages() livelock
2013-09-11 15:58:01 -07:00
mm/writeback: make writeback_inodes_wb static
2013-09-11 15:58:02 -07:00
