linux-kernel - [PATCH] drm/komeda: Clean warnings: candidate for 'gnu

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Message-ID: <20191114100421.30510-1-james.qian.wang@arm.com>
Date:   Thu, 14 Nov 2019 10:04:37 +0000
From:   "james qian wang (Arm Technology China)" <james.qian.wang@....com>
To:     Liviu Dudau <Liviu.Dudau@....com>,
        Mihail Atanassov <Mihail.Atanassov@....com>
CC:     "Lowry Li (Arm Technology China)" <Lowry.Li@....com>,
        nd <nd@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "james qian wang (Arm Technology China)" <james.qian.wang@....com>
Subject: [PATCH] drm/komeda: Clean warnings: candidate for 'gnu_printf’ format attribute

komeda/komeda_event.c: In function ‘komeda_sprintf’:
komeda/komeda_event.c:31:2: warning: function ‘komeda_sprintf’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
  num = vsnprintf(str->str + str->len, free_sz, fmt, args);

v2: Update the comment msg.

Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@....com>
---
 drivers/gpu/drm/arm/display/komeda/komeda_event.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_event.c b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
index bf269683f811..977c38d516da 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_event.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
@@ -17,6 +17,7 @@ struct komeda_str {
 
 /* return 0 on success,  < 0 on no space.
  */
+__printf(2, 3)
 static int komeda_sprintf(struct komeda_str *str, const char *fmt, ...)
 {
 	va_list args;
-- 
2.20.1