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a="2857733" X-IronPort-AV: E=Sophos;i="6.27,200,1787036400"; d="scan'208";a="2857733" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Nov 2026 13:44:19 -0800 X-CSE-ConnectionGUID: VrhxRO5+Sn2Cwe90b4oEJg== X-CSE-MsgGUID: TdkUtEKjQyCGw/zQ3k6YSQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,200,1787036400"; d="scan'208";a="7727986" Received: from lkp-server01.sh.intel.com (HELO 0caa9d2d175c) ([10.239.97.150]) by fmviesa003.fm.intel.com with ESMTP; 07 Nov 2026 13:44:15 -0800 Received: from kbuild by 0caa9d2d175c with local (Exim 4.98.2) (envelope-from ) id 1xPoCq-00000000rbn-1NfD; Sat, 07 Nov 2026 21:44:12 +0000 Date: Sun, 8 Nov 2026 05:44:10 +0800 From: kernel test robot To: amit , neil.armstrong@linaro.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, hanxu5@huaqin.corp-partner.google.com, jesszhan0024@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, icenowy@aosc.io, jagan@amarulasolutions.com, linusw@kernel.org, robert.chiras@nxp.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, amit Subject: Re: [PATCH] drm/panel: Replace deprecated DCS display-on calls Message-ID: <202611080509.DZUY4PHf-lkp@intel.com> References: <20261104073813.42429-1-amittibi123@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261104073813.42429-1-amittibi123@gmail.com> Hi amit, kernel test robot noticed the following build warnings: [auto build test WARNING on v7.4-rc1] [also build test WARNING on linus/master next-20261105] [cannot apply to drm-misc/drm-misc-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/amit/drm-panel-Replace-deprecated-DCS-display-on-calls/20261104-093813 base: v7.4-rc1 patch link: https://lore.kernel.org/r/20261104073813.42429-1-amittibi123%40gmail.com patch subject: [PATCH] drm/panel: Replace deprecated DCS display-on calls config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20261108/202611080509.DZUY4PHf-lkp@intel.com/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) rustc: rustc 1.96.0 (ac68faa20 2026-05-25) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261108/202611080509.DZUY4PHf-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/202611080509.DZUY4PHf-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c:356:10: warning: variable 'ret' is uninitialized when used here [-Wuninitialized] 356 | return ret; | ^~~ drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c:350:9: note: initialize the variable 'ret' to silence this warning 350 | int ret; | ^ | = 0 1 warning generated. vim +/ret +356 drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 342 fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 343 static int k101_im2ba02_enable(struct drm_panel *panel) fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 344 { fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 345 struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel); fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 346 const struct k101_im2ba02_init_cmd *cmd = &timed_cmds[1]; 7bb5e5e01ffc36b amit 2026-11-04 347 struct mipi_dsi_multi_context dsi_ctx = { 7bb5e5e01ffc36b amit 2026-11-04 348 .dsi = ctx->dsi, 7bb5e5e01ffc36b amit 2026-11-04 349 }; fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 350 int ret; fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 351 fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 352 msleep(150); fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 353 7bb5e5e01ffc36b amit 2026-11-04 354 mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); 7bb5e5e01ffc36b amit 2026-11-04 355 if (dsi_ctx.accum_err) fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 @356 return ret; fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 357 fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 358 msleep(50); fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 359 fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 360 return mipi_dsi_dcs_write_buffer(ctx->dsi, cmd->data, K101_IM2BA02_INIT_CMD_LEN); fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 361 } fac47b1ebeda3b5 Icenowy Zheng 2020-01-16 362 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki