linux-kernel - [PATCH 1/1] Char: mxser, ratelimit ioctl warning

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Message-Id: <1216975190-6531-1-git-send-email-jirislaby@gmail.com>
Date:	Fri, 25 Jul 2008 10:39:50 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Jiri Slaby <jirislaby@...il.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: [PATCH 1/1] Char: mxser, ratelimit ioctl warning

Get major ioctl prints out a warning, make it ratelimited.

Signed-off-by: Jiri Slaby <jirislaby@...il.com>
Cc: Alan Cox <alan@...rguk.ukuu.org.uk>
---
 drivers/char/mxser.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 48676ad..3c1ecd5 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -1631,8 +1631,10 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
 
 	switch (cmd) {
 	case MOXA_GET_MAJOR:
-		printk(KERN_WARNING "mxser: '%s' uses deprecated ioctl %x, fix "
-				"your userspace\n", current->comm, cmd);
+		if (printk_ratelimit())
+			printk(KERN_WARNING "mxser: '%s' uses deprecated ioctl "
+					"%x (GET_MAJOR), fix your userspace\n",
+					current->comm, cmd);
 		return put_user(ttymajor, (int __user *)argp);
 
 	case MOXA_CHKPORTENABLE:
-- 
1.5.6.2

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