linux-kernel - [PATCH 16/18] autofs: Fix print format for ioctl warning message

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Date:	Fri, 12 Aug 2016 10:48:51 +0800
From:	Ian Kent <raven@...maw.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Tomohiro Kusumi <kusumi.tomohiro@...il.com>,
	autofs mailing list <autofs@...r.kernel.org>,
	Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH 16/18] autofs: Fix print format for ioctl warning message

From: Tomohiro Kusumi <kusumi.tomohiro@...il.com>

All other warnings use "cmd(0x%08x)" and this is the only one with "cmd(%d)".
(below comes from my userspace debug program, but not automount daemon)

[ 1139.905676] autofs4:pid:1640:check_dev_ioctl_version: ioctl control interface version mismatch: kernel(1.0), user(0.0), cmd(-1072131215)

Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@...il.com>
Signed-off-by: Ian Kent <ikent@...hat.com>
---
 fs/autofs4/dev-ioctl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 7289216..e89d6bb 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -75,7 +75,7 @@ static int check_dev_ioctl_version(int cmd, struct autofs_dev_ioctl *param)
 	if ((param->ver_major != AUTOFS_DEV_IOCTL_VERSION_MAJOR) ||
 	    (param->ver_minor > AUTOFS_DEV_IOCTL_VERSION_MINOR)) {
 		pr_warn("ioctl control interface version mismatch: "
-			"kernel(%u.%u), user(%u.%u), cmd(%d)\n",
+			"kernel(%u.%u), user(%u.%u), cmd(0x%08x)\n",
 			AUTOFS_DEV_IOCTL_VERSION_MAJOR,
 			AUTOFS_DEV_IOCTL_VERSION_MINOR,
 			param->ver_major, param->ver_minor, cmd);