linux-kernel - [PATCH 1/1] x86/platform/intel/quark: add printf attribute to imr_self_test

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Date:   Mon, 19 Dec 2016 14:21:44 +0100
From:   Nicolas Iooss <nicolas.iooss_linux@....org>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Nicolas Iooss <nicolas.iooss_linux@....org>
Subject: [PATCH 1/1] x86/platform/intel/quark: add printf attribute to imr_self_test_result()

__printf attributes help detecting issues in printf format strings at
compile time.

Even though imr_selftest.c is only compiled with
CONFIG_DEBUG_IMR_SELFTEST, gcc complains about a missing format
attribute when compiling allmodconfig with -Wmissing-format-attribute.
Silent this warning by adding the attribute.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@....org>
---
 arch/x86/platform/intel-quark/imr_selftest.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/platform/intel-quark/imr_selftest.c b/arch/x86/platform/intel-quark/imr_selftest.c
index f5bad40936ac..b8f562049cad 100644
--- a/arch/x86/platform/intel-quark/imr_selftest.c
+++ b/arch/x86/platform/intel-quark/imr_selftest.c
@@ -25,7 +25,8 @@
  * @fmt:	format string.
  * ...		variadic argument list.
  */
-static void __init imr_self_test_result(int res, const char *fmt, ...)
+static __printf(2, 3)
+void __init imr_self_test_result(int res, const char *fmt, ...)
 {
 	va_list vlist;
 
-- 
2.11.0