From: Colin Ian King <colin.king@xxxxxxxxxxxxx> Subject: fs/userfaultfd.c: remove redundant pointer uwq Pointer uwq is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'uwq' set but not used [-Wunused-but-set-variable] Link: http://lkml.kernel.org/r/20180717090802.18357-1-colin.king@xxxxxxxxxxxxx Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/userfaultfd.c | 3 --- 1 file changed, 3 deletions(-) --- a/fs/userfaultfd.c~userfaultfd-remove-redundant-pointer-uwq +++ a/fs/userfaultfd.c @@ -1849,17 +1849,14 @@ static void userfaultfd_show_fdinfo(stru { struct userfaultfd_ctx *ctx = f->private_data; wait_queue_entry_t *wq; - struct userfaultfd_wait_queue *uwq; unsigned long pending = 0, total = 0; spin_lock(&ctx->fault_pending_wqh.lock); list_for_each_entry(wq, &ctx->fault_pending_wqh.head, entry) { - uwq = container_of(wq, struct userfaultfd_wait_queue, wq); pending++; total++; } list_for_each_entry(wq, &ctx->fault_wqh.head, entry) { - uwq = container_of(wq, struct userfaultfd_wait_queue, wq); total++; } spin_unlock(&ctx->fault_pending_wqh.lock); _
