From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751571AbeDFUO7 (ORCPT ); Fri, 6 Apr 2018 16:14:59 -0400 Received: from mail-wr0-f196.google.com ([209.85.128.196]:42484 "EHLO mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751276AbeDFUO6 (ORCPT ); Fri, 6 Apr 2018 16:14:58 -0400 X-Google-Smtp-Source: AIpwx4/YzZDzRYYlvwKwuGRd89xo2A3xC0vecf7MGqLoYEYY4DwYHu73oHSYo96LNok9tooEMYv6uA== From: Mathieu Malaterre To: Jens Axboe Cc: Mathieu Malaterre , Jan Kara , Andrew Morton , Nikolay Borisov , Tejun Heo , Matthew Wilcox , Minchan Kim , linux-kernel@vger.kernel.org Subject: [PATCH] backing: silence compiler warning using __printf Date: Fri, 6 Apr 2018 22:14:51 +0200 Message-Id: <20180406201453.32683-1-malat@debian.org> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org __printf marker was added in commit d2cc4dde9206 ("bdi_register: add __printf verification, fix arg mismatch") for function `bdi_register` since it is useful to verify format and arguments. Apply equivalent gcc attribute to `bdi_register_va`. Remove warning triggered with W=1: mm/backing-dev.c:881:2: warning: function might be possible candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format] Signed-off-by: Mathieu Malaterre --- include/linux/backing-dev.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 3e4ce54d84ab..0e9c0f71f726 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -28,6 +28,7 @@ void bdi_put(struct backing_dev_info *bdi); __printf(2, 3) int bdi_register(struct backing_dev_info *bdi, const char *fmt, ...); +__printf(2, 0) int bdi_register_va(struct backing_dev_info *bdi, const char *fmt, va_list args); int bdi_register_owner(struct backing_dev_info *bdi, struct device *owner); -- 2.11.0