Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 18cb2aef authored Aug 07, 2010 by Namhyung Kim Committed by Tejun Heo Aug 07, 2010

percpu: handle __percpu notations in UP accessors



UP accessors didn't take care of __percpu notations leading to a lot
of spurious sparse warnings on UP configurations.  Fix it.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

parent 4a386c3e

include/asm-generic/percpu.h

+10 −5

Original line number	Original line	Diff line number	Diff line
	@@ -70,9 +70,14 @@ extern void setup_per_cpu_areas(void);

	#else /* ! SMP */		#else /* ! SMP */

	#define per_cpu(var, cpu) (*((void)(cpu), &(var)))		#define VERIFY_PERCPU_PTR(__p) ({ \
	#define __get_cpu_var(var) (var)		__verify_pcpu_ptr((__p)); \
	#define __raw_get_cpu_var(var) (var)		(typeof((__p)) __kernel __force )(__p); \
			})

			#define per_cpu(var, cpu) (*((void)(cpu), VERIFY_PERCPU_PTR(&(var))))
			#define __get_cpu_var(var) (*VERIFY_PERCPU_PTR(&(var)))
			#define __raw_get_cpu_var(var) (*VERIFY_PERCPU_PTR(&(var)))
	#define this_cpu_ptr(ptr) per_cpu_ptr(ptr, 0)		#define this_cpu_ptr(ptr) per_cpu_ptr(ptr, 0)
	#define __this_cpu_ptr(ptr) this_cpu_ptr(ptr)		#define __this_cpu_ptr(ptr) this_cpu_ptr(ptr)

include/linux/percpu.h

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -149,7 +149,7 @@ extern void __init percpu_init_late(void);

	#else /* CONFIG_SMP */		#else /* CONFIG_SMP */

	#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); })		#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR((ptr)); })

	/* can't distinguish from other static vars, always false */		/* can't distinguish from other static vars, always false */
	static inline bool is_kernel_percpu_address(unsigned long addr)		static inline bool is_kernel_percpu_address(unsigned long addr)