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X-CSE-ConnectionGUID: hVF8JatfRE6+0DmmZsEMNw== X-CSE-MsgGUID: gi4nouRoQr2ZQwUxIxb6Hw== X-IronPort-AV: E=McAfee;i="6800,10657,11762"; a="77631460" X-IronPort-AV: E=Sophos;i="6.23,184,1770624000"; d="scan'208";a="77631460" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Apr 2026 07:54:59 -0700 X-CSE-ConnectionGUID: VBc00ikhQhCpFO5mWzrQug== X-CSE-MsgGUID: HHCZXdCwSNKw4Bvt6noxgw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,184,1770624000"; d="scan'208";a="261464950" Received: from lkp-server01.sh.intel.com (HELO 7e48d0ff8e22) ([10.239.97.150]) by orviesa002.jf.intel.com with ESMTP; 17 Apr 2026 07:54:57 -0700 Received: from kbuild by 7e48d0ff8e22 with local (Exim 4.98.2) (envelope-from ) id 1wDkas-000000000TE-1Dkk; Fri, 17 Apr 2026 14:54:54 +0000 Date: Fri, 17 Apr 2026 22:54:46 +0800 From: kernel test robot To: "Kory Maincent (TI.com)" Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Luca Ceresoli Subject: drivers/gpu/drm/bridge/tda998x_drv.c:1296:24: sparse: sparse: Using plain integer as NULL pointer Message-ID: <202604172257.Imo6GOH9-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 43cfbdda5af60ffc6272a7b8c5c37d1d0a181ca9 commit: c76a8be4feecebbb39095e3c012b67e0f939543d drm/bridge: tda998x: Add support for DRM_BRIDGE_ATTACH_NO_CONNECTOR date: 9 weeks ago config: openrisc-randconfig-r121-20260417 (https://download.01.org/0day-ci/archive/20260417/202604172257.Imo6GOH9-lkp@intel.com/config) compiler: or1k-linux-gcc (GCC) 11.5.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260417/202604172257.Imo6GOH9-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 | Fixes: c76a8be4feec ("drm/bridge: tda998x: Add support for DRM_BRIDGE_ATTACH_NO_CONNECTOR") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202604172257.Imo6GOH9-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/bridge/tda998x_drv.c:1296:24: sparse: sparse: Using plain integer as NULL pointer drivers/gpu/drm/bridge/tda998x_drv.c:1784:50: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __be32 const [usertype] *p @@ got unsigned int const [usertype] * @@ drivers/gpu/drm/bridge/tda998x_drv.c:1784:50: sparse: expected restricted __be32 const [usertype] *p drivers/gpu/drm/bridge/tda998x_drv.c:1784:50: sparse: got unsigned int const [usertype] * drivers/gpu/drm/bridge/tda998x_drv.c:1785:52: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected restricted __be32 const [usertype] *p @@ got unsigned int const [usertype] * @@ drivers/gpu/drm/bridge/tda998x_drv.c:1785:52: sparse: expected restricted __be32 const [usertype] *p drivers/gpu/drm/bridge/tda998x_drv.c:1785:52: sparse: got unsigned int const [usertype] * vim +1296 drivers/gpu/drm/bridge/tda998x_drv.c 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1284 c76a8be4feecebb drivers/gpu/drm/bridge/tda998x_drv.c Kory Maincent (TI.com 2026-01-23 1285) static const struct drm_edid *tda998x_edid_read(struct tda998x_priv *priv, c76a8be4feecebb drivers/gpu/drm/bridge/tda998x_drv.c Kory Maincent (TI.com 2026-01-23 1286) struct drm_connector *connector) 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1287 { 78e90e003b96efa drivers/gpu/drm/i2c/tda998x_drv.c Jani Nikula 2024-05-10 1288 const struct drm_edid *drm_edid; 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1289 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1290 /* 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1291 * If we get killed while waiting for the HPD timeout, return 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1292 * no modes found: we are not in a restartable path, so we 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1293 * can't handle signals gracefully. 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1294 */ 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1295 if (tda998x_edid_delay_wait(priv)) 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 @1296 return 0; 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1297 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1298 if (priv->rev == TDA19988) 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1299 reg_clear(priv, REG_TX4, TX4_PD_RAM); 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1300 78e90e003b96efa drivers/gpu/drm/i2c/tda998x_drv.c Jani Nikula 2024-05-10 1301 drm_edid = drm_edid_read_custom(connector, read_edid_block, priv); 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1302 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1303 if (priv->rev == TDA19988) 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1304 reg_set(priv, REG_TX4, TX4_PD_RAM); 25576733ec6e051 drivers/gpu/drm/i2c/tda998x_drv.c Russell King 2016-10-23 1305 c76a8be4feecebb drivers/gpu/drm/bridge/tda998x_drv.c Kory Maincent (TI.com 2026-01-23 1306) return drm_edid; c76a8be4feecebb drivers/gpu/drm/bridge/tda998x_drv.c Kory Maincent (TI.com 2026-01-23 1307) } c76a8be4feecebb drivers/gpu/drm/bridge/tda998x_drv.c Kory Maincent (TI.com 2026-01-23 1308) :::::: The code at line 1296 was first introduced by commit :::::: 25576733ec6e051e541b13ba77a8e1c63619336f drm/i2c: tda998x: group connector functions and funcs together :::::: TO: Russell King :::::: CC: Russell King -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki