Commit 85438592 authored Nov 18, 2009 by Tejun Heo

percpu: remove compile warnings caused by __verify_pcpu_ptr()



If percpu pointer is const, __verify_pcpu_ptr() triggers warnings like
the following.

 drivers/net/loopback.c: In function 'loopback_get_stats':
 drivers/net/loopback.c:109: warning: initialization discards qualifiers from pointer target type

Fix it by adding const to the verification target pointer used in
__verify_pcpu_ptr().

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>

parent 545695fb

include/linux/percpu-defs.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -24,7 +24,7 @@
		* input parameter is a percpu pointer.
		*/
		#define __verify_pcpu_ptr(ptr) do { \
		void __percpu *__vpp_verify = (typeof(ptr))NULL; \
		const void __percpu *__vpp_verify = (typeof(ptr))NULL; \
		(void)__vpp_verify; \
		} while (0)