From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932629Ab3AYOSF (ORCPT ); Fri, 25 Jan 2013 09:18:05 -0500 Received: from moutng.kundenserver.de ([212.227.126.186]:60530 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757423Ab3AYOPA (ORCPT ); Fri, 25 Jan 2013 09:15:00 -0500 From: Arnd Bergmann To: linux-arm-kernel@list.infradead.org Cc: linux-kernel@vger.kernel.org, Arnd Bergmann , "J. Bruce Fields" , Trond Myklebust , linux-nfs@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 15/19] sunrpc: don't warn for unused variable 'buf' Date: Fri, 25 Jan 2013 14:14:32 +0000 Message-Id: <1359123276-15833-16-git-send-email-arnd@arndb.de> X-Mailer: git-send-email 1.8.0 In-Reply-To: <1359123276-15833-1-git-send-email-arnd@arndb.de> References: <1359123276-15833-1-git-send-email-arnd@arndb.de> X-Provags-ID: V02:K0:EeG5WnyjrUW298Dbuqr4wE1v54Vz0cty8l97b4DWbIE jjoyu53+jYKA2HvrSyInBIo0QUwzm2x5XvOGloaNoFEAaC94u1 kbkqm9YaIZWG2ksa5alDNcJTTnXZZsH8R6uBiYjm05ZqXsdXt3 t4FDYNk5AS+6Frq3NiXRydMA/C6JXHMZ1oxhhIrIQ26OuKNl5N THfEqWmHKoct+jaCpUoAA6AQM84hpzVfMMA0yKNusKV+hi/D+G 1KyJ2/74vcaOuDHByR4Wtn3PTDwJtZO3OqWrPMVXcCT0Pvfbkh KTU3MXrYwW2tCikNDr9QYjNdxIlZUsJ0V0uzcxUo0r3hzgLV8G OuwFYmIZnpl6J9qbr0JNp0uJFVkxoRUU8Ui3re5Bb Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When RPC_DEBUG is unset, the dprintk() macro does nothing, causing the 'buf' variable in svc_printk to become unused. Marking it as __maybe_unused avoids a harmless gcc warning. Without this patch, building at91_dt_defconfig results in: net/sunrpc/svc.c: In function 'svc_printk': net/sunrpc/svc.c:1051:7: warning: unused variable 'buf' [-Wunused-variable] Signed-off-by: Arnd Bergmann Cc: "J. Bruce Fields" Cc: Trond Myklebust Cc: linux-nfs@vger.kernel.org Cc: netdev@vger.kernel.org --- net/sunrpc/svc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index dbf12ac..b1f5223 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -1047,7 +1047,7 @@ void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) { struct va_format vaf; va_list args; - char buf[RPC_MAX_ADDRBUFLEN]; + char buf[RPC_MAX_ADDRBUFLEN] __maybe_unused; va_start(args, fmt); -- 1.8.0