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Linus Torvalds 168fe32a07 Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull poll annotations from Al Viro:
 "This introduces a __bitwise type for POLL### bitmap, and propagates
  the annotations through the tree. Most of that stuff is as simple as
  'make ->poll() instances return __poll_t and do the same to local
  variables used to hold the future return value'.

  Some of the obvious brainos found in process are fixed (e.g. POLLIN
  misspelled as POLL_IN). At that point the amount of sparse warnings is
  low and most of them are for genuine bugs - e.g. ->poll() instance
  deciding to return -EINVAL instead of a bitmap. I hadn't touched those
  in this series - it's large enough as it is.

  Another problem it has caught was eventpoll() ABI mess; select.c and
  eventpoll.c assumed that corresponding POLL### and EPOLL### were
  equal. That's true for some, but not all of them - EPOLL### are
  arch-independent, but POLL### are not.

  The last commit in this series separates userland POLL### values from
  the (now arch-independent) kernel-side ones, converting between them
  in the few places where they are copied to/from userland. AFAICS, this
  is the least disruptive fix preserving poll(2) ABI and making epoll()
  work on all architectures.

  As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and
  it will trigger only on what would've triggered EPOLLWRBAND on other
  architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered
  at all on sparc. With this patch they should work consistently on all
  architectures"

* 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
  make kernel-side POLL... arch-independent
  eventpoll: no need to mask the result of epi_item_poll() again
  eventpoll: constify struct epoll_event pointers
  debugging printk in sg_poll() uses %x to print POLL... bitmap
  annotate poll(2) guts
  9p: untangle ->poll() mess
  ->si_band gets POLL... bitmap stored into a user-visible long field
  ring_buffer_poll_wait() return value used as return value of ->poll()
  the rest of drivers/*: annotate ->poll() instances
  media: annotate ->poll() instances
  fs: annotate ->poll() instances
  ipc, kernel, mm: annotate ->poll() instances
  net: annotate ->poll() instances
  apparmor: annotate ->poll() instances
  tomoyo: annotate ->poll() instances
  sound: annotate ->poll() instances
  acpi: annotate ->poll() instances
  crypto: annotate ->poll() instances
  block: annotate ->poll() instances
  x86: annotate ->poll() instances
  ...
 		2018-01-30 17:58:07 -08:00
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accessibility
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acpi Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
amba A couple of dma-mapping updates: 2017-11-14 16:54:12 -08:00
android Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
ata Merge branch 'for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2018-01-30 14:48:30 -08:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-29 13:10:25 -08:00
auxdisplay auxdisplay: img-ascii-lcd: Only build on archs that have IOMEM 2017-11-27 12:36:45 -08:00
base Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-01-30 14:18:52 -08:00
bcma bcma: Fix 'allmodconfig' and BCMA builds on MIPS targets 2018-01-16 21:13:55 +02:00
block Merge branch 'for-4.16/block' of git://git.kernel.dk/linux-block 2018-01-29 11:51:49 -08:00
bluetooth the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
bus Merge branches 'pm-domains', 'pm-kconfig', 'pm-cpuidle' and 'powercap' 2018-01-18 02:54:45 +01:00
cdrom Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
char Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
clk clk: use atomic runtime pm api in clk_core_is_enabled 2017-12-26 17:34:03 -08:00
clocksource clocksource/drivers/stm32: Start the timer's counter sooner 2018-01-08 17:57:26 +01:00
connector
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cpufreq Merge branch 'pm-cpufreq-thermal' into pm-cpufreq 2018-01-18 02:52:42 +01:00
cpuidle cpuidle: Avoid NULL argument in cpuidle_switch_governor() 2018-01-05 14:01:30 +01:00
crypto crypto: inside-secure - do not use areq->result for partial results 2017-12-22 19:48:01 +11:00
dax device-dax: implement ->split() to catch invalid munmap attempts 2017-11-29 18:40:42 -08:00
dca
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devfreq PM / devfreq: Fix potential NULL pointer dereference in governor_store 2018-01-02 09:36:54 +09:00
dio
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dma Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-01-30 10:15:30 -08:00
dma-buf the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
edac EDAC, mv64x60: Fix an error handling path 2018-01-09 20:14:23 +01:00
eisa
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extcon extcon: axp288: Remove unused platform data 2018-01-03 10:11:02 +09:00
firewire the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
firmware arm64 updates for 4.16: 2018-01-30 13:57:43 -08:00
fmc
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fpga Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
fsi
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gpio Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
gpu Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
hid Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
hsi the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
hv Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
hwmon hwmon: (dell-smm) Disable fan support for Dell Vostro 3360 2018-01-27 09:34:22 -08:00
hwspinlock hwspinlock update for v4.15 2017-11-17 20:16:20 -08:00
hwtracing arm64 updates for 4.16: 2018-01-30 13:57:43 -08:00
i2c Power management updates for v4.16-rc1 2018-01-29 09:47:41 -08:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide 2017-11-19 08:04:41 -10:00
idle
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iio Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
infiniband Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
input Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
iommu iommu/arm-smmu-v3: Cope with duplicated Stream IDs 2018-01-02 16:45:51 +00:00
ipack
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irqchip arm64 updates for 4.16: 2018-01-30 13:57:43 -08:00
isdn the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
leds Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
lightnvm lightnvm: pblk: refactor pblk_ppa_comp function 2018-01-05 08:50:12 -07:00
macintosh the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
mailbox the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
mcb
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md Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
media Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
memory mtd: onenand: omap2: Configure driver from DT 2018-01-12 16:41:15 +01:00
memstick misc: rtsx: Move Realtek Card Reader Driver to misc 2017-11-29 10:16:44 +00:00
message Modules updates for v4.15 2017-11-15 13:46:33 -08:00
mfd regmap: Updates for v4.16 2018-01-29 11:35:24 -08:00
misc Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
mmc There are two major achievements for MMC in this release, which deserves to be 2018-01-29 11:26:11 -08:00
mtd This pull request contains updates for both UBI and UBIFS: 2018-01-29 13:31:47 -08:00
mux mux: core: fix double get_device() 2018-01-09 14:19:41 +01:00
net Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
nfc treewide: setup_timer() -> timer_setup() (2 field) 2017-11-21 15:57:09 -08:00
ntb treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
nubus nubus: Add support for the driver model 2018-01-16 16:47:29 +01:00
nvdimm libnvdimm, btt: Fix an incompatibility in the log layout 2017-12-21 14:59:27 -08:00
nvme Merge branch 'for-4.16/block' of git://git.kernel.dk/linux-block 2018-01-29 11:51:49 -08:00
nvmem nvmem: meson-mx-efuse: fix reading from an offset other than 0 2017-12-23 16:46:23 +01:00
of arm64 updates for 4.16: 2018-01-30 13:57:43 -08:00
opp PM / OPP: Make local function ti_opp_supply_set_opp() static 2017-12-28 12:48:16 +01:00
oprofile
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parisc parisc: Show unhashed EISA EEPROM address 2018-01-02 21:01:02 +01:00
parport Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
pci Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
pcmcia drivers/pcmcia/sa1111_badge4.c: avoid unused function warning 2017-11-17 16:10:04 -08:00
perf perf: dsu: Use signed field for dsu_pmu->num_counters 2018-01-15 18:02:17 +00:00
phy Merge branch 'for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2018-01-30 14:48:30 -08:00
pinctrl genirq/irqdomain: Rename early argument of irq_domain_activate_irq() 2017-12-29 21:13:04 +01:00
platform Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
pnp PNP: pnpbios: Use PTR_ERR_OR_ZERO() 2017-12-16 02:59:45 +01:00
power PM / AVS: rockchip-io: account for const type of of_device_id.data 2018-01-05 13:36:33 +01:00
powercap powercap: intel_rapl: Fix trailing semicolon 2018-01-17 12:56:24 +01:00
pps the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
ps3
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ptp the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
pwm pwm: Changes for v4.15-rc1 2017-11-22 21:09:18 -10:00
rapidio the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
ras mm/memory_failure: Remove unused trapno from memory_failure 2018-01-23 12:17:42 -06:00
regulator Merge remote-tracking branch 'regulator/topic/tps65218' into regulator-next 2018-01-26 17:57:05 +00:00
remoteproc remoteproc updates for v4.15 2017-11-17 20:14:10 -08:00
reset ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
rpmsg the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
rtc the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
s390 Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
sbus Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2017-11-17 20:21:44 -08:00
scsi Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
sfi
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sh A couple of dma-mapping updates: 2017-11-14 16:54:12 -08:00
sn
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soc meson-gx-socinfo: Fix package id parsing 2017-11-30 15:29:44 -08:00
spi Merge remote-tracking branch 'spi/topic/xilinx' into spi-next 2018-01-26 17:57:34 +00:00
spmi
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ssb ssb: Disable PCI host for PCI_DRIVERS_GENERIC 2018-01-16 21:15:58 +02:00
staging Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
target Merge branch 'for-4.16/block' of git://git.kernel.dk/linux-block 2018-01-29 11:51:49 -08:00
tc
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tee optee: fix invalid of_node_put() in optee_driver_init() 2017-11-29 10:24:57 +01:00
thermal cpu_cooling: Drop static-power related stuff 2017-12-07 22:52:01 +01:00
thunderbolt thunderbolt: Mask ring interrupt properly when polling starts 2017-12-16 16:37:51 +01:00
tty Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
uio the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
usb Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
uwb treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
vfio annotate poll-related wait keys 2017-11-27 16:19:54 -05:00
vhost Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
video m68k updates for 4.16 2018-01-29 16:37:15 -08:00
virt the rest of drivers/*: annotate ->poll() instances 2017-11-28 11:06:58 -05:00
virtio virtio_mmio: fix devm cleanup 2017-12-14 21:01:40 +02:00
vlynq
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vme Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
w1 Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
watchdog watchdog: Add RAVE SP watchdog driver 2018-01-08 10:08:36 +00:00
xen Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
zorro
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Kconfig
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Makefile usb: build drivers/usb/common/ when USB_SUPPORT is set 2017-11-28 15:17:49 +01:00