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X-CSE-ConnectionGUID: aJMwzJ0RT5OsxizkELSuYw== X-CSE-MsgGUID: 6AFvggL+Tcuz727ZJ+itUw== X-IronPort-AV: E=McAfee;i="6800,10657,11606"; a="75834110" X-IronPort-AV: E=Sophos;i="6.19,288,1754982000"; d="scan'208";a="75834110" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Nov 2025 20:13:13 -0800 X-CSE-ConnectionGUID: a/SCoH5pTGazUgKz1IUMmQ== X-CSE-MsgGUID: yvD98d3LTP+rGCENt+8esw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,288,1754982000"; d="scan'208";a="187454883" Received: from lkp-server01.sh.intel.com (HELO 6ef82f2de774) ([10.239.97.150]) by orviesa006.jf.intel.com with ESMTP; 07 Nov 2025 20:13:07 -0800 Received: from kbuild by 6ef82f2de774 with local (Exim 4.96) (envelope-from ) id 1vHaK1-0000id-0U; Sat, 08 Nov 2025 04:13:05 +0000 Date: Sat, 8 Nov 2025 12:12:05 +0800 From: kernel test robot To: Nilesh Laad , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Marek Vasut Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Nilesh Laad , venkata.valluru@oss.qualcomm.com, jessica.zhang@oss.qualcomm.com, Yi Zhang , Gopi Botlagunta Subject: Re: [PATCH v2 2/2] drm/bridge: add support for lontium lt9211c bridge Message-ID: <202511081122.TMw7Wy9r-lkp@intel.com> References: <20251107-add-lt9211c-bridge-v2-2-b0616e23407c@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251107-add-lt9211c-bridge-v2-2-b0616e23407c@oss.qualcomm.com> Hi Nilesh, kernel test robot noticed the following build errors: [auto build test ERROR on f50b969bafafb2810a07f376387350c4c0d72a21] url: https://github.com/intel-lab-lkp/linux/commits/Nilesh-Laad/dt-bindings-bridge-lt9211c-Add-bindings/20251107-210546 base: f50b969bafafb2810a07f376387350c4c0d72a21 patch link: https://lore.kernel.org/r/20251107-add-lt9211c-bridge-v2-2-b0616e23407c%40oss.qualcomm.com patch subject: [PATCH v2 2/2] drm/bridge: add support for lontium lt9211c bridge config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20251108/202511081122.TMw7Wy9r-lkp@intel.com/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251108/202511081122.TMw7Wy9r-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202511081122.TMw7Wy9r-lkp@intel.com/ All error/warnings (new ones prefixed by >>): >> drivers/gpu/drm/bridge/lontium-lt9211c.c:207:48: warning: '&' within '|' [-Wbitwise-op-parentheses] 207 | ret = regmap_write(ctx->regmap, 0x8180, (pval & 0xfc | 0x03)); | ~~~~~^~~~~~ ~ drivers/gpu/drm/bridge/lontium-lt9211c.c:207:48: note: place parentheses around the '&' expression to silence this warning 207 | ret = regmap_write(ctx->regmap, 0x8180, (pval & 0xfc | 0x03)); | ^ | ( ) drivers/gpu/drm/bridge/lontium-lt9211c.c:227:48: warning: '&' within '|' [-Wbitwise-op-parentheses] 227 | ret = regmap_write(ctx->regmap, 0x8530, (pval & 0xf8 | 0x11)); | ~~~~~^~~~~~ ~ drivers/gpu/drm/bridge/lontium-lt9211c.c:227:48: note: place parentheses around the '&' expression to silence this warning 227 | ret = regmap_write(ctx->regmap, 0x8530, (pval & 0xf8 | 0x11)); | ^ | ( ) drivers/gpu/drm/bridge/lontium-lt9211c.c:253:5: warning: unused variable 'bc' [-Wunused-variable] 253 | u8 bc[3]; | ^~ drivers/gpu/drm/bridge/lontium-lt9211c.c:619:48: warning: '&' within '|' [-Wbitwise-op-parentheses] 619 | ret = regmap_write(ctx->regmap, 0x8530, (pval & 0x3f | 0x40)); | ~~~~~^~~~~~ ~ drivers/gpu/drm/bridge/lontium-lt9211c.c:619:48: note: place parentheses around the '&' expression to silence this warning 619 | ret = regmap_write(ctx->regmap, 0x8530, (pval & 0x3f | 0x40)); | ^ | ( ) >> drivers/gpu/drm/bridge/lontium-lt9211c.c:918:14: error: incompatible function pointer types initializing 'int (*)(struct drm_bridge *, struct drm_encoder *, enum drm_bridge_attach_flags)' with an expression of type 'int (struct drm_bridge *, enum drm_bridge_attach_flags)' [-Wincompatible-function-pointer-types] 918 | .attach = lt9211c_attach, | ^~~~~~~~~~~~~~ >> drivers/gpu/drm/bridge/lontium-lt9211c.c:920:20: error: incompatible function pointer types initializing 'void (*)(struct drm_bridge *, struct drm_atomic_state *)' with an expression of type 'void (struct drm_bridge *, struct drm_bridge_state *)' [-Wincompatible-function-pointer-types] 920 | .atomic_enable = lt9211c_atomic_enable, | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/lontium-lt9211c.c:921:21: error: incompatible function pointer types initializing 'void (*)(struct drm_bridge *, struct drm_atomic_state *)' with an expression of type 'void (struct drm_bridge *, struct drm_bridge_state *)' [-Wincompatible-function-pointer-types] 921 | .atomic_disable = lt9211c_atomic_disable, | ^~~~~~~~~~~~~~~~~~~~~~ 4 warnings and 3 errors generated. vim +918 drivers/gpu/drm/bridge/lontium-lt9211c.c 916 917 static const struct drm_bridge_funcs lt9211c_funcs = { > 918 .attach = lt9211c_attach, 919 .mode_valid = lt9211c_mode_valid, > 920 .atomic_enable = lt9211c_atomic_enable, 921 .atomic_disable = lt9211c_atomic_disable, 922 .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, 923 .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, 924 .atomic_get_input_bus_fmts = lt9211c_atomic_get_input_bus_fmts, 925 .atomic_reset = drm_atomic_helper_bridge_reset, 926 }; 927 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki