On 5/26/21 7:05 AM, Yang Yingliang wrote:

Check page after calling xa_untag_pointer() to fix compile warning:
   lib/test_hmm.c:631:16: warning: variable ‘page’ set but not used [-Wunused-but-set-variable]
   631 |   struct page *page;
       |                ^~~~

Fixes: 8b2a105c3794 ("mm: selftests for exclusive device memory")
Reported-by: Hulk Robot <redacted>
Signed-off-by: Yang Yingliang <redacted>

Reviewed-by: Ralph Campbell <redacted>