From 8b1df11f97333d6d8647f1c6c0554eb2d9774396 Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Tue, 11 Apr 2023 12:06:01 +0100 Subject: [PATCH] io_uring: shut io_prep_async_work warning io_uring/io_uring.c:432 io_prep_async_work() error: we previously assumed 'req->file' could be null (see line 425). Even though it's a false positive as there will not be REQ_F_ISREG set without a file, let's add a simple check to make the kernel test robot happy. We don't care about performance here, but assumingly it'll be optimised out by the compiler. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/a6cfbe92c74b789c0b4f046f7f98d19b1ca2e5b7.1681210788.git.asml.silence@gmail.com Signed-off-by: Jens Axboe --- io_uring/io_uring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 9bbf58297a0e..b171c26d331d 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -425,7 +425,7 @@ static void io_prep_async_work(struct io_kiocb *req) if (req->file && !io_req_ffs_set(req)) req->flags |= io_file_get_flags(req->file) << REQ_F_SUPPORT_NOWAIT_BIT; - if (req->flags & REQ_F_ISREG) { + if (req->file && (req->flags & REQ_F_ISREG)) { bool should_hash = def->hash_reg_file; /* don't serialize this request if the fs doesn't need it */