linux-kernel - [PATCH v2 1/2] printk: Add a pr_warn

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Date:	Mon, 16 Dec 2013 12:06:44 -0500
From:	Neil Horman <nhorman@...driver.com>
To:	linux-sctp@...r.kernel.org
Cc:	Neil Horman <nhorman@...driver.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] printk: Add a pr_warn_deprecated macro

sctp has several points in its setsockopt path in which it issues deprecation
warnings.  It seems like it might be handy to macrotize such a warning so other
subsystems can use it easily

Signed-off-by: Neil Horman <nhorman@...driver.com>
CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC: "David S. Miller" <davem@...emloft.net>
CC: linux-kernel@...r.kernel.org
---
 include/linux/printk.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/printk.h b/include/linux/printk.h
index 6949258..2e043b3 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -336,6 +336,9 @@ extern asmlinkage void dump_stack(void) __cold;
 	printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
 /* no pr_cont_ratelimited, don't do that... */
 
+#define pr_warn_deprecated(fmt, ...)					\
+	pr_warn_ratelimited("Deprecated: " fmt, ##__VA_ARGS__)
+
 #if defined(DEBUG)
 #define pr_devel_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
-- 
1.8.3.1

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