linux-kernel - [PATCH] dm ioctl: Remove double parentheses

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: <20170316164830.127026-1-mka@chromium.org>
Date:   Thu, 16 Mar 2017 09:48:30 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com
Cc:     Shaohua Li <shli@...nel.org>, linux-raid@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Grant Grundler <grundler@...omium.org>,
        Michael Davidson <md@...gle.com>,
        Greg Hackmann <ghackmann@...gle.com>,
        Matthias Kaehlcke <mka@...omium.org>
Subject: [PATCH] dm ioctl: Remove double parentheses

The extra pair of parantheses is not needed and causes clang to generate
the following warning:

drivers/md/dm-ioctl.c:1776:11: error: equality comparison with extraneous parentheses [-Werror,-Wparentheses-equality]
        if ((cmd == DM_DEV_CREATE_CMD)) {
             ~~~~^~~~~~~~~~~~~~~~~~~~
drivers/md/dm-ioctl.c:1776:11: note: remove extraneous parentheses around the comparison to silence this warning
        if ((cmd == DM_DEV_CREATE_CMD)) {
            ~    ^                   ~
drivers/md/dm-ioctl.c:1776:11: note: use '=' to turn this equality comparison into an assignment
        if ((cmd == DM_DEV_CREATE_CMD)) {
                 ^~
                 =

Also remove another double parentheses that don't cause a warning.

Signed-off-by: Matthias Kaehlcke <mka@...omium.org>
---
 drivers/md/dm-ioctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index a5a9b17f0f7f..9360036bf6d3 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1777,12 +1777,12 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
 	    cmd == DM_LIST_VERSIONS_CMD)
 		return 0;
 
-	if ((cmd == DM_DEV_CREATE_CMD)) {
+	if (cmd == DM_DEV_CREATE_CMD) {
 		if (!*param->name) {
 			DMWARN("name not supplied when creating device");
 			return -EINVAL;
 		}
-	} else if ((*param->uuid && *param->name)) {
+	} else if (*param->uuid && *param->name) {
 		DMWARN("only supply one of name or uuid, cmd(%u)", cmd);
 		return -EINVAL;
 	}
-- 
2.12.0.367.g23dc2f6d3c-goog