On Fri, 15 Jul 2016 14:08:37 +0200 Sebastian Andrzej Siewior bigeasy@linutronix.de wrote:
- Steven
- Arnd Bergmann | 2016-07-15 09:42:40 [+0200]:
On Friday, July 15, 2016 5:55:39 AM CEST Build bot for Mark Brown wrote:
arm64-allnoconfig/home/broonie/build/linux-stable-rt/include/asm-generic/preempt.h:10:9: error: implicit declaration of function 'READ_ONCE' [-Werror=implicit-function-declaration]
arm64-allmodconfig/home/broonie/build/linux-stable-rt/include/asm-generic/preempt.h:10:9: error: implicit declaration of function 'READ_ONCE' [-Werror=implicit-function-declaration]
arm-multi_v7_defconfig/home/broonie/build/linux-stable-rt/include/asm-generic/preempt.h:10:9: error: implicit declaration of function 'READ_ONCE' [-Werror=implicit-function-declaration]
arm-allmodconfig/home/broonie/build/linux-stable-rt/include/asm-generic/preempt.h:10:9: error: implicit declaration of function 'READ_ONCE' [-Werror=implicit-function-declaration]
arm-allnoconfig/home/broonie/build/linux-stable-rt/include/asm-generic/preempt.h:10:9: error: implicit declaration of function 'READ_ONCE' [-Werror=implicit-function-declaration]
arm64-defconfig/home/broonie/build/linux-stable-rt/include/asm-generic/preempt.h:10:9: error: implicit declaration of function 'READ_ONCE' [-Werror=implicit-function-declaration]
These all started failing yesterday with v3.14.72-rt76, before it was
v3.14.72-rt75 build: 0 failures 113 warnings (v3.14.72-rt75)
Arnd
Arnd,
Does this fix the issue?
-- Steve
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h index 65759d8b0b46..25c09df2c046 100644 --- a/include/asm-generic/preempt.h +++ b/include/asm-generic/preempt.h @@ -7,7 +7,7 @@
static __always_inline int preempt_count(void) { - return READ_ONCE(current_thread_info()->preempt_count); + return ACCESS_ONCE(current_thread_info()->preempt_count); }
static __always_inline volatile int *preempt_count_ptr(void)