linux-kernel - [PATCH] io_uring: remove redundant variable pointer nxt and io_wq_assign

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200406225439.654486-1-colin.king@canonical.com>
Date:   Mon,  6 Apr 2020 23:54:39 +0100
From:   Colin King <colin.king@...onical.com>
To:     Alexander Viro <viro@...iv.linux.org.uk>,
        Jens Axboe <axboe@...nel.dk>, linux-fsdevel@...r.kernel.org,
        io-uring@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] io_uring: remove redundant variable pointer nxt and io_wq_assign_next call

From: Colin Ian King <colin.king@...onical.com>

An earlier commit "io_uring: remove @nxt from handlers" removed the
setting of pointer nxt and now it is always null, hence the non-null
check and call to io_wq_assign_next is redundant and can be removed.

Addresses-Coverity: ("'Constant' variable guard")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 fs/io_uring.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 14efcf0a3070..b594fa0bd210 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3509,14 +3509,11 @@ static void __io_sync_file_range(struct io_kiocb *req)
 static void io_sync_file_range_finish(struct io_wq_work **workptr)
 {
 	struct io_kiocb *req = container_of(*workptr, struct io_kiocb, work);
-	struct io_kiocb *nxt = NULL;
 
 	if (io_req_cancelled(req))
 		return;
 	__io_sync_file_range(req);
 	io_put_req(req); /* put submission ref */
-	if (nxt)
-		io_wq_assign_next(workptr, nxt);
 }
 
 static int io_sync_file_range(struct io_kiocb *req, bool force_nonblock)
-- 
2.25.1