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X-CSE-ConnectionGUID: fjvowXTzQ0CGkg8e0owotg== X-CSE-MsgGUID: 3gIm7TGjQd6C4D9RttyPrA== X-IronPort-AV: E=McAfee;i="6800,10657,11902"; a="89655991" X-IronPort-AV: E=Sophos;i="6.27,98,1787036400"; d="scan'208";a="89655991" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Sep 2026 20:49:09 -0700 X-CSE-ConnectionGUID: JXgmEIhkTbWQjaxmMu92vQ== X-CSE-MsgGUID: Fw0fEDqVRGS/L5QMKH4/ww== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,98,1787036400"; d="scan'208";a="295590059" Received: from lkp-server02.sh.intel.com (HELO 0a3643a6ed9d) ([10.239.97.151]) by fmviesa002.fm.intel.com with ESMTP; 11 Sep 2026 20:49:07 -0700 Received: from kbuild by 0a3643a6ed9d with local (Exim 4.98.2) (envelope-from ) id 1x5Ejh-000000002ap-0VTB; Sat, 12 Sep 2026 03:49:05 +0000 Date: Sat, 12 Sep 2026 11:48:52 +0800 From: kernel test robot To: Nick Desaulniers Cc: oe-kbuild-all@lists.linux.dev Subject: [clangbuiltlinux:question_mark_operator 5/5] drivers/gpu/drm/drm_atomic.c:1305:1: warning: control reaches end of non-void function Message-ID: <202609121119.nj8F5jyV-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/ClangBuiltLinux/linux question_mark_operator head: 532a7ac2d57bb5674f5feffb4ba378f8a32f3bcf commit: 532a7ac2d57bb5674f5feffb4ba378f8a32f3bcf [5/5] drm: atomic: use try operator ('?') and member access chaining config: i386-randconfig-r132-20260912 (https://download.01.org/0day-ci/archive/20260912/202609121119.nj8F5jyV-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260912/202609121119.nj8F5jyV-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/202609121119.nj8F5jyV-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_get_old_crtc_for_encoder': drivers/gpu/drm/drm_atomic.c:1302:78: error: expected expression before ';' token 1302 | connector = drm_atomic_get_old_connector_for_encoder(state, encoder)?; | ^ drivers/gpu/drm/drm_atomic.c:1304:69: error: expected expression before '->' token 1304 | return drm_atomic_get_old_connector_state(state, connector)?->crtc; | ^~ drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_get_new_crtc_for_encoder': drivers/gpu/drm/drm_atomic.c:1325:78: error: expected expression before ';' token 1325 | connector = drm_atomic_get_new_connector_for_encoder(state, encoder)?; | ^ drivers/gpu/drm/drm_atomic.c:1327:69: error: expected expression before '->' token 1327 | return drm_atomic_get_new_connector_state(state, connector)?->crtc; | ^~ drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_get_old_crtc_for_encoder': >> drivers/gpu/drm/drm_atomic.c:1305:1: warning: control reaches end of non-void function [-Wreturn-type] 1305 | } | ^ drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_get_new_crtc_for_encoder': drivers/gpu/drm/drm_atomic.c:1328:1: warning: control reaches end of non-void function [-Wreturn-type] 1328 | } | ^ vim +1305 drivers/gpu/drm/drm_atomic.c a7e4886e06f723 Maxime Ripard 2025-03-13 1283 a7e4886e06f723 Maxime Ripard 2025-03-13 1284 7b9a9e35e45def Vinod Polimera 2023-03-02 1285 /** 7b9a9e35e45def Vinod Polimera 2023-03-02 1286 * drm_atomic_get_old_crtc_for_encoder - Get old crtc for an encoder 7b9a9e35e45def Vinod Polimera 2023-03-02 1287 * @state: Atomic state 7b9a9e35e45def Vinod Polimera 2023-03-02 1288 * @encoder: The encoder to fetch the crtc state for 7b9a9e35e45def Vinod Polimera 2023-03-02 1289 * 7b9a9e35e45def Vinod Polimera 2023-03-02 1290 * This function finds and returns the crtc that was connected to @encoder 7b9a9e35e45def Vinod Polimera 2023-03-02 1291 * as specified by the @state. 7b9a9e35e45def Vinod Polimera 2023-03-02 1292 * 7b9a9e35e45def Vinod Polimera 2023-03-02 1293 * Returns: The old crtc connected to @encoder, or NULL if the encoder is 7b9a9e35e45def Vinod Polimera 2023-03-02 1294 * not connected. 7b9a9e35e45def Vinod Polimera 2023-03-02 1295 */ 7b9a9e35e45def Vinod Polimera 2023-03-02 1296 struct drm_crtc * 5164f7e7ff8ec7 Maxime Ripard 2026-04-27 1297 drm_atomic_get_old_crtc_for_encoder(struct drm_atomic_commit *state, 7b9a9e35e45def Vinod Polimera 2023-03-02 1298 struct drm_encoder *encoder) 7b9a9e35e45def Vinod Polimera 2023-03-02 1299 { 7b9a9e35e45def Vinod Polimera 2023-03-02 1300 struct drm_connector *connector; 7b9a9e35e45def Vinod Polimera 2023-03-02 1301 532a7ac2d57bb5 Nick Desaulniers 2026-09-10 1302 connector = drm_atomic_get_old_connector_for_encoder(state, encoder)?; 7b9a9e35e45def Vinod Polimera 2023-03-02 1303 532a7ac2d57bb5 Nick Desaulniers 2026-09-10 1304 return drm_atomic_get_old_connector_state(state, connector)?->crtc; 7b9a9e35e45def Vinod Polimera 2023-03-02 @1305 } 7b9a9e35e45def Vinod Polimera 2023-03-02 1306 EXPORT_SYMBOL(drm_atomic_get_old_crtc_for_encoder); 7b9a9e35e45def Vinod Polimera 2023-03-02 1307 :::::: The code at line 1305 was first introduced by commit :::::: 7b9a9e35e45def496b0a5b3f206bb4efa712ea4a drm: add helper functions to retrieve old and new crtc :::::: TO: Vinod Polimera :::::: CC: Dmitry Baryshkov -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki