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Arnd Bergmann 0ca85fc310 ARM: fix put_user() for gcc-8 
Building kernels before linux-4.7 with gcc-8 results in many build failures
when gcc triggers a check that was meant to catch broken compilers:

/tmp/ccCGMQmS.s:648: Error: .err encountered

According to the discussion in the gcc bugzilla, a local "register
asm()" variable is still supposed to be the correct way to force an
inline assembly to use a particular register, but marking it 'const'
lets the compiler do optimizations that break that, i.e the compiler is
free to treat the variable as either 'const' or 'register' in that case.

Upstream commit 9f73bd8bb445 ("ARM: uaccess: remove put_user() code
duplication") fixed this problem in linux-4.8 as part of a larger change,
but seems a little too big to be backported to 4.4.

Let's take the simplest fix and change only the one broken line in the
same way as newer kernels.

Suggested-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85745
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86673
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-28 07:45:05 +02:00
..
boot ARM: dts: imx6q: Use correct SDMA script for SPI5 core 2018-07-11 16:03:47 +02:00
common ARM: sa1111: fix pcmcia suspend/resume 2016-10-07 15:23:44 +02:00
configs ARM: omap2plus_defconfig: Fix probe errors on UARTs 5 and 6 2017-11-15 17:13:09 +01:00
crypto arm: crypto: reduce priority of bit-sliced AES cipher 2017-11-21 09:21:18 +01:00
firmware
include ARM: fix put_user() for gcc-8 2018-07-28 07:45:05 +02:00
kernel ARM: 8748/1: mm: Define vdso_start, vdso_end as array 2018-05-30 07:49:06 +02:00
kvm arm: KVM: Fix SMCCC handling of unimplemented SMC/HVC calls 2018-02-16 20:09:45 +01:00
lib ARM: 8772/1: kprobes: Prohibit kprobes on get_user functions 2018-05-26 08:48:57 +02:00
mach-alpine
mach-asm9260
mach-at91 ARM: remove duplicate 'const' annotations' 2017-10-08 10:14:20 +02:00
mach-axxia
mach-bcm ARM: remove duplicate 'const' annotations' 2017-10-08 10:14:20 +02:00
mach-berlin arm: berlin: add CPU hotplug support 2015-10-15 21:14:28 +02:00
mach-clps711x
mach-cns3xxx ARM: remove duplicate 'const' annotations' 2017-10-08 10:14:20 +02:00
mach-davinci ARM: davinci: da8xx: Create DSP device only when assigned memory 2018-04-13 19:50:09 +02:00
mach-digicolor ARM: digicolor: select pinctrl/gpio driver 2015-10-15 22:27:30 +02:00
mach-dove ARM: dove: Fix legacy get_irqnr_and_base 2015-11-25 14:59:12 +00:00
mach-ebsa110
mach-efm32
mach-ep93xx
mach-exynos ARM: EXYNOS: Properly skip unitialized parent clock in power domain on 2016-05-11 11:21:14 +02:00
mach-footbridge
mach-gemini ARM: gemini: remove unnecessary mdio-gpio includes 2015-10-21 19:50:43 -07:00
mach-highbank
mach-hisi
mach-imx ARM: imx: Add MXC_CPU_IMX6ULL and cpu_is_imx6ull 2018-04-13 19:50:19 +02:00
mach-integrator
mach-iop13xx
mach-iop32x
mach-iop33x
mach-ixp4xx ARM: ixp4xx: fix read{b,w,l} return types 2015-12-01 23:45:30 +01:00
mach-keystone
mach-ks8695
mach-lpc18xx
mach-lpc32xx
mach-mediatek ARM: SoC platform updates for v4.4 2015-11-10 14:56:23 -08:00
mach-meson
mach-mmp
mach-moxart
mach-mv78xx0
mach-mvebu ARM: mvebu: Fix broken PL310_ERRATA_753970 selects 2018-03-11 16:19:45 +01:00
mach-mxs
mach-netx
mach-nomadik
mach-nspire
mach-omap1 ARM: OMAP1: clock: Fix debugfs_create_*() usage 2018-05-30 07:48:59 +02:00
mach-omap2 ARM: OMAP3: Fix prm wake interrupt for resume 2018-05-30 07:48:59 +02:00
mach-orion5x ARM: orion5x: Fix legacy get_irqnr_and_base 2015-11-25 15:01:00 +00:00
mach-picoxcell
mach-prima2 ARM: prima2: always enable reset controller 2016-05-04 14:48:53 -07:00
mach-pxa ARM: pxa/tosa-bt: add MODULE_LICENSE tag 2018-02-22 15:45:01 +01:00
mach-qcom ARM: Remove __ref on hotplug cpu die path 2015-10-22 09:55:03 -07:00
mach-realview net: smc91x: fix SMC accesses 2016-09-30 10:18:37 +02:00
mach-rockchip
mach-rpc
mach-s3c24xx cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init 2015-11-27 10:10:32 +09:00
mach-s3c64xx ASoC: samsung: pass DMA channels as pointers 2016-04-12 09:08:32 -07:00
mach-s5pv210
mach-sa1100 ARM: sa1100: clear reset status prior to reboot 2016-10-07 15:23:43 +02:00
mach-shmobile ARM: shmobile: fix regulator quirk for Gen2 2016-10-07 15:23:43 +02:00
mach-socfpga ARM: SoCFPGA: Fix secondary CPU startup in thumb2 kernel 2016-05-11 11:21:14 +02:00
mach-spear ARM: remove duplicate 'const' annotations' 2017-10-08 10:14:20 +02:00
mach-sti
mach-stm32
mach-sunxi ARM: SoC platform updates for v4.4 2015-11-10 14:56:23 -08:00
mach-tegra ARM: tegra: select USB_ULPI from EHCI rather than platform 2018-02-25 11:03:51 +01:00
mach-u300 spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
mach-uniphier ARM: uniphier: rework SMP operations to use trampoline code 2015-10-27 09:20:53 +09:00
mach-ux500 ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation 2017-01-26 08:23:49 +01:00
mach-versatile
mach-vexpress ARM: Remove __ref on hotplug cpu die path 2015-10-22 09:55:03 -07:00
mach-vt8500
mach-w90x900
mach-zx ARM: zx: only build power domain code when CONFIG_PM=y 2015-11-19 16:16:45 +01:00
mach-zynq ARM: zynq: Reserve correct amount of non-DMA RAM 2017-01-15 13:41:36 +01:00
mm ARM: dma-mapping: disallow dma_get_sgtable() for non-kernel managed memory 2017-12-25 14:22:13 +01:00
net ARM: net: bpf: fix zero right shift 2016-01-06 01:32:09 -05:00
nwfpe
oprofile
plat-iop
plat-omap ARM: OMAP: Fix dmtimer init for omap1 2018-05-30 07:49:00 +02:00
plat-orion
plat-pxa ARM: pxa: add the number of DMA requestor lines 2017-10-05 09:41:48 +02:00
plat-samsung ASoC: samsung: pass DMA channels as pointers 2016-04-12 09:08:32 -07:00
plat-versatile
probes ARM: 8770/1: kprobes: Prohibit probing on optimized_callback 2018-05-26 08:48:57 +02:00
tools
vdso ARM: 8449/1: fix bug in vdsomunge swab32 macro 2015-10-29 15:20:15 +00:00
vfp
xen swiotlb-xen: implement xen_swiotlb_dma_mmap callback 2017-10-05 09:41:48 +02:00
Kconfig ARM: 8454/1: OF implies OF_FLATTREE 2015-11-28 23:26:12 +00:00
Kconfig-nommu ARM: 8635/1: nommu: allow enabling REMAP_VECTORS_TO_RAM 2017-10-08 10:14:17 +02:00
Kconfig.debug ARM: debug-ll: fix BCM63xx entry for multiplatform 2016-03-03 15:07:08 -08:00
Makefile