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@xxxxxxxxxx>
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
Sorry about the delay. Patch committed to percpu#for-next.
Thanks.
include/linux/percpu-defs.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 1fa36eb..68567c0 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -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)
--
1.6.4.2
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