From: YueHaibing <yuehaibing@xxxxxxxxxx>
Subject: mm/hmm.c: remove set but not used variable 'devmem'
Fixes gcc '-Wunused-but-set-variable' warning:
mm/hmm.c: In function 'hmm_devmem_ref_kill':
mm/hmm.c:995:21: warning:
variable 'devmem' set but not used [-Wunused-but-set-variable]
It not used any more since 35d39f953d4e ("mm, hmm: replace
hmm_devmem_pages_create() with devm_memremap_pages()")
Link: http://lkml.kernel.org/r/1543629971-128377-1-git-send-email-yuehaibing@xxxxxxxxxx
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Reviewed-by: Reviewed-by: Jérôme Glisse <jglisse@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/hmm.c~mm-hmm-remove-set-but-not-used-variable-devmem
+++ a/mm/hmm.c
@@ -992,9 +992,6 @@ static void hmm_devmem_ref_exit(void *da
static void hmm_devmem_ref_kill(struct percpu_ref *ref)
{
- struct hmm_devmem *devmem;
-
- devmem = container_of(ref, struct hmm_devmem, ref);
percpu_ref_kill(ref);
}
_
