From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751324AbdBWNaS (ORCPT ); Thu, 23 Feb 2017 08:30:18 -0500 Received: from smtp.domeneshop.no ([194.63.252.55]:52296 "EHLO smtp.domeneshop.no" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751041AbdBWNaO (ORCPT ); Thu, 23 Feb 2017 08:30:14 -0500 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org, =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Subject: [PATCH 0/3] drm/tinydrm: Fix compiler warnings Date: Thu, 23 Feb 2017 14:29:54 +0100 Message-Id: <20170223132957.2839-1-noralf@tronnes.org> X-Mailer: git-send-email 2.10.2 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 Dave pulled tinydrm yesterday which triggered some compiler warnings: Dave Airlie: drivers/gpu/drm/tinydrm/mipi-dbi.c: In function ‘mipi_dbi_debugfs_command_write’: drivers/gpu/drm/tinydrm/mipi-dbi.c:905:8: warning: ‘cmd’ may be used uninitialized in this function [-Wmaybe-uninitialized] ret = mipi_dbi_command_buf(mipi, cmd, parameters, i); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I didn't see this on gcc 4.8, but it showed up when I used gcc 6.2. kbuild test robot: [drm:drm-next 1199/1208] drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c:198:26: error: redefinition of 'tinydrm_of_find_backlight' kbuild test robot: drivers/gpu/drm/tinydrm/mipi-dbi.c: In function 'mipi_dbi_typec1_command': >> drivers/gpu/drm/tinydrm/mipi-dbi.c:65:20: warning: field width specifier '*' expects argument of type 'int', but argument 5 has type 'size_t {aka long unsigned int}' [-Wformat=] DRM_DEBUG_DRIVER("cmd=%02x, par=%*ph\n", cmd, len, data); \ ^ include/drm/drmP.h:228:40: note: in definition of macro 'DRM_DEBUG_DRIVER' drm_printk(KERN_DEBUG, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) ^~~ >> drivers/gpu/drm/tinydrm/mipi-dbi.c:671:2: note: in expansion of macro 'MIPI_DBI_DEBUG_COMMAND' MIPI_DBI_DEBUG_COMMAND(cmd, parameters, num); ^~~~~~~~~~~~~~~~~~~~~~ Noralf. Noralf Trønnes (3): drm/tinydrm: mipi-dbi: Silence: ‘cmd’ may be used uninitialized drm/tinydrm: mipi-dbi: Fix field width specifier warning drm/tinydrm: helpers: Properly fix backlight dependency drivers/gpu/drm/tinydrm/mipi-dbi.c | 6 +++--- include/drm/tinydrm/tinydrm-helpers.h | 19 ------------------- 2 files changed, 3 insertions(+), 22 deletions(-) -- 2.10.2