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6aa7de0591
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Mark Rutland 6aa7de0591 locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 
Please do not apply this to mainline directly, instead please re-run the
coccinelle script shown below and apply its output.

For several reasons, it is desirable to use {READ,WRITE}_ONCE() in
preference to ACCESS_ONCE(), and new code is expected to use one of the
former. So far, there's been no reason to change most existing uses of
ACCESS_ONCE(), as these aren't harmful, and changing them results in
churn.

However, for some features, the read/write distinction is critical to
correct operation. To distinguish these cases, separate read/write
accessors must be used. This patch migrates (most) remaining
ACCESS_ONCE() instances to {READ,WRITE}_ONCE(), using the following
coccinelle script:

----
// Convert trivial ACCESS_ONCE() uses to equivalent READ_ONCE() and
// WRITE_ONCE()

// $ make coccicheck COCCI=/home/mark/once.cocci SPFLAGS="--include-headers" MODE=patch

virtual patch

@ depends on patch @
expression E1, E2;
@@

- ACCESS_ONCE(E1) = E2
+ WRITE_ONCE(E1, E2)

@ depends on patch @
expression E;
@@

- ACCESS_ONCE(E)
+ READ_ONCE(E)
----

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: davem@davemloft.net
Cc: linux-arch@vger.kernel.org
Cc: mpe@ellerman.id.au
Cc: shuah@kernel.org
Cc: snitzer@redhat.com
Cc: thor.thayer@linux.intel.com
Cc: tj@kernel.org
Cc: viro@zeniv.linux.org.uk
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1508792849-3115-19-git-send-email-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-25 11:01:08 +02:00
..
accessibility
acpi ACPI: properties: Fix __acpi_node_get_property_reference() return codes 2017-10-11 21:16:37 +02:00
amba
android android: binder: Fix null ptr dereference in debug msg 2017-10-21 10:14:20 +02:00
ata ahci: don't ignore result code of ahci_reset_controller() 2017-10-02 12:21:30 -07:00
atm
auxdisplay auxdisplay: charlcd: properly restore atomic counter on error path 2017-09-18 16:06:00 +02:00
base locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
bcma
block nbd: don't set the device size until we're connected 2017-10-09 12:29:22 -06:00
bluetooth
bus bus: mbus: fix window size calculation for 4GB windows 2017-10-12 15:01:30 +02:00
cdrom
char locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
clk clk: samsung: exynos4: Enable VPLL and EPLL clocks for suspend/resume cycle 2017-10-04 09:19:13 -07:00
clocksource locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
connector
cpufreq cpufreq: dt: Fix sysfs duplicate filename creation for platform-device 2017-09-26 01:10:08 +02:00
cpuidle ARM: cpuidle: Avoid memleak if init fail 2017-09-19 23:10:51 +02:00
crypto locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
dax - Some request-based DM core and DM multipath fixes and cleanups 2017-09-14 13:43:16 -07:00
dca
devfreq PM / devfreq: Fix memory leak when fail to register device 2017-08-28 10:31:08 +09:00
dio
dma dmaengine: altera: Use IRQ-safe spinlock calls in the error paths as well 2017-10-20 11:51:10 +05:30
dma-buf sync_file: Return consistent status in SYNC_IOC_FILE_INFO 2017-10-09 13:09:19 -03:00
edac locking/atomics, EDAC/altera: Convert ACCESS_ONCE() to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:00:56 +02:00
eisa
extcon
firewire locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
firmware locking/atomics, firmware/ivc: Convert ACCESS_ONCE() to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:00:57 +02:00
fmc drivers/fmc: carrier can program FPGA on registration 2017-08-28 16:24:22 +02:00
fpga fpga: altera-cvp: remove DRIVER_ATTR() usage 2017-09-19 09:20:33 +02:00
fsi drivers/fsi/scom: Remove reset before every putscom 2017-08-28 17:15:16 +02:00
gpio gpio: omap: Fix lost edge interrupts 2017-10-07 13:17:07 +02:00
gpu locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2017-10-12 09:08:56 -07:00
hsi
hv vmbus: hvsock: add proper sync for vmbus_hvsock_device_unregister() 2017-10-20 14:56:25 +02:00
hwmon hwmon: (xgene) Fix up error handling path mixup in 'xgene_hwmon_probe()' 2017-10-01 08:46:54 -07:00
hwspinlock
hwtracing intel_th: pci: Add Lewisburg PCH support 2017-09-22 10:28:00 +02:00
i2c i2c: omap: Fix error handling for clk_get() 2017-10-18 00:19:26 +02:00
ide ide: fix IRQ assignment for PCI bus order probing 2017-10-03 14:03:31 -05:00
idle Power management updates for v4.14-rc1 2017-09-05 12:19:08 -07:00
iio iio: adc: at91-sama5d2_adc: fix probe error on missing trigger property 2017-10-14 19:52:07 +01:00
infiniband locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
input locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
iommu iommu/amd: Finish TLB flush in amd_iommu_unmap() 2017-10-13 17:32:19 +02:00
ipack
irqchip irqchip/tango: Use irq_gc_mask_disable_and_ack_set 2017-10-13 16:31:05 +01:00
isdn isdn/i4l: fetch the ppp_write buffer in one shot 2017-09-20 16:01:36 -07:00
leds as3645a: Unregister indicator LED on device unbind 2017-09-23 21:17:43 +02:00
lightnvm
macintosh powerpc/macintosh: constify wf_sensor_ops structures 2017-09-01 16:42:54 +10:00
mailbox Just behavorial changes to a controller driver: 2017-09-07 13:23:37 -07:00
mcb Char/Misc drivers for 4.14-rc1 2017-09-05 11:08:17 -07:00
md locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
media locking/atomics, media/dvb_ringbuffer: Convert ACCESS_ONCE() to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:00:58 +02:00
memory ARM: SoC driver updates for v4.14 2017-09-10 20:40:00 -07:00
memstick
message scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough 2017-08-29 21:51:45 -04:00
mfd dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
misc locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
mmc mmc: sdhci-pci: Fix default d3_retune for Intel host controllers 2017-10-10 08:40:04 +02:00
mtd mtd: nand: atmel: fix buffer overflow in atmel_pmecc_user 2017-09-27 17:33:28 +02:00
mux mux: make device_type const 2017-08-29 13:46:35 +02:00
net locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
nfc
ntb
nubus
nvdimm libnvdimm, namespace: fix btt claim class crash 2017-09-18 17:29:01 -07:00
nvme nvme-pci: Use PCI bus address for data/queues in CMB 2017-10-04 11:42:53 +02:00
nvmem nvmem: add missing of_node_put() in of_nvmem_cell_get() 2017-09-18 16:12:26 +02:00
of Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-10-21 22:44:48 -04:00
oprofile
parisc
parport Char/Misc drivers for 4.14-rc1 2017-09-05 11:08:17 -07:00
pci PCI: aardvark: Move to struct pci_host_bridge IRQ mapping functions 2017-10-10 21:17:43 -05:00
pcmcia MIPS: Alchemy: Threaded carddetect irqs for devboards 2017-08-29 15:21:53 +02:00
perf drivers/perf: arm_pmu_acpi: Release memory obtained by kasprintf 2017-09-22 15:11:46 +01:00
phy phy: rockchip-typec: Check for errors from tcphy_phy_init() 2017-10-03 15:18:41 +05:30
pinctrl pinctrl: cherryview: fix issues caused by dynamic gpio irqs mapping 2017-10-08 02:32:59 +02:00
platform platform/x86: fujitsu-laptop: Don't oops when FUJ02E3 is not presnt 2017-09-27 00:04:43 -07:00
pnp dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
power power supply and reset changes for the v4.14 series 2017-09-09 14:44:39 -07:00
powercap
pps drivers/pps: use surrounding "if PPS" to remove numerous dependency checks 2017-09-08 18:26:51 -07:00
ps3
ptp
pwm pwm: Changes for v4.14-rc1 2017-09-11 13:04:32 -07:00
rapidio rapidio: remove global irq spinlocks from the subsystem 2017-10-03 17:54:24 -07:00
ras RAS/CEC: Use the right length for "cec_disable" 2017-10-05 14:23:06 +02:00
regulator - New Drivers 2017-09-07 13:51:13 -07:00
remoteproc remoteproc: imx_rproc: fix return value check in imx_rproc_addr_init() 2017-10-11 10:47:47 -07:00
reset reset: socfpga: fix for 64-bit compilation 2017-10-04 10:29:44 +02:00
rpmsg rpmsg: glink: Fix memory leak in qcom_glink_alloc_intent() 2017-10-10 11:22:09 -07:00
rtc RTC for 4.14 2017-09-13 10:56:00 -07:00
s390 s390/cio: recover from bad paths 2017-09-19 08:36:19 +02:00
sbus
scsi locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
sfi
sh
sn
soc Merge branch '4.14-features' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2017-09-15 20:43:33 -07:00
spi ACPI updates for v4.14-rc1 2017-09-05 12:45:03 -07:00
spmi spmi: pmic-arb: Move the ownership check to irq_chip callback 2017-08-28 13:52:22 +02:00
ssb
staging Staging/IIO fixes for 4.14-rc6 2017-10-23 06:37:16 -04:00
target locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
tc
tee
thermal Merge branches 'thermal-core', 'thermal-soc', 'thermal-intel' and 'const-thermal-zone-structure' into next 2017-09-08 11:20:04 +08:00
thunderbolt ACPI updates for v4.14-rc1 2017-09-05 12:45:03 -07:00
tty tty: fall back to N_NULL if switching to N_TTY fails during hangup 2017-10-13 16:18:33 -07:00
uio
usb locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
uwb uwb: properly check kthread_run return value 2017-09-18 11:28:23 +02:00
vfio locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
vhost locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
video fbdev changes for v4.14: 2017-09-14 13:33:33 -07:00
virt virt: Convert to using %pOF instead of full_name 2017-08-29 08:52:51 -05:00
virtio SCSI misc on 20170907 2017-09-07 21:11:05 -07:00
vlynq
vme
w1 power supply and reset changes for the v4.14 series 2017-09-09 14:44:39 -07:00
watchdog Merge branch '4.14-features' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2017-09-15 20:43:33 -07:00
xen xen: fixes for 4.14-rc3 2017-09-29 12:24:28 -07:00
zorro
Kconfig
Makefile