From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A2F55191F91 for ; Sat, 20 Dec 2025 16:31:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766248289; cv=none; b=SkQhxN+lJTPsuxh4ZI2dpnR8dQs78YfCpvKGcoxJ/dxtVrSfCIPbjlOO2BCx+WNr95UF+mB4yHOH4a4BHgSe5M3q2VNEDjd0jlep+JqlzYjV0wI76+d+R+DtcEsS1IrdlnpXn9hqdmKdl77UYQDEdzM3SUuObqanQU/0VbgrBR4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766248289; c=relaxed/simple; bh=Owar0Ub1+5wSojHfAm4Q7mGt1p28BiLqFHuPtkMYS64=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ODuamz8BwL7dxcD7OL656FUan92qjmXEd8OxzMuQM6kCowhjSx22/g9LyD2Ntr5ZwF4SLjR3fKrHV1CIBQi1sHRx8WWFriOi10pCAnm7yfHsHjIbZWUHPCDA0rCo4csj/3F7MEWpto7hcVkrsI5H+GTzJgcQSF0NsnRXYCJP5+I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=KQrNnzQR; arc=none smtp.client-ip=192.198.163.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="KQrNnzQR" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1766248288; x=1797784288; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=Owar0Ub1+5wSojHfAm4Q7mGt1p28BiLqFHuPtkMYS64=; b=KQrNnzQRHkkMoPDNM5fcnRgZGCgFZzZ9/BIWcmctTsQP3Aa9XvQMQarg 9eJ2v2++KlR+x70WSlmDA+qsVa53XdSow2gkdhSL6ZfGgfdmHqPQW4z+Q S7cnalMAEf7AfV2l9cGi65STQgRw76OxHpit83lf/f5s41QNOQUCG0gEg 8xBvQFk7e1KCTM64Sl6ttdYYZccISZoW6xAnqwZesO6U0grdf5ueMaQL3 YIg4YLTQ+NNQbLU7O8gOdzrsZY4zkTuyiKv+/emA8aMXCbgYsQWK0QNUR OT2yaiR6DB2UVabYPPjJ7hSqOQYjG+2r7lm37tb+JA3Z+fxt/GJAuQDsT A==; X-CSE-ConnectionGUID: VJkFOO3CRHW08bHXjJpp6g== X-CSE-MsgGUID: oKLXcpJEQtiZenQf+gF5cg== X-IronPort-AV: E=McAfee;i="6800,10657,11648"; a="67375596" X-IronPort-AV: E=Sophos;i="6.21,164,1763452800"; d="scan'208";a="67375596" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Dec 2025 08:31:27 -0800 X-CSE-ConnectionGUID: BSwMQfwqTxW7b62CvC0Vsw== X-CSE-MsgGUID: FfnAArOGRd+WqMDsBwIdkA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,164,1763452800"; d="scan'208";a="222605830" Received: from lkp-server01.sh.intel.com (HELO 0d09efa1b85f) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 20 Dec 2025 08:31:25 -0800 Received: from kbuild by 0d09efa1b85f with local (Exim 4.98.2) (envelope-from ) id 1vWzrX-000000004sb-0feN; Sat, 20 Dec 2025 16:31:23 +0000 Date: Sun, 21 Dec 2025 00:31:07 +0800 From: kernel test robot To: =?iso-8859-1?Q?Ren=E9?= Rebe , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, Dave Airlie , Thomas Zimmermann Subject: Re: [PATCH V4] drm/ast: Swap framebuffer writes on big-endian machines Message-ID: <202512210011.dKKTJkNT-lkp@intel.com> References: <20251212.210504.1355099120650239629.rene@exactco.de> 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=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20251212.210504.1355099120650239629.rene@exactco.de> Hi René, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on drm/drm-next drm-i915/for-linux-next drm-i915/for-linux-next-fixes drm-tip/drm-tip linus/master v6.19-rc1 next-20251219] [cannot apply to daeinki-drm-exynos/exynos-drm-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/Ren-Rebe/drm-ast-Swap-framebuffer-writes-on-big-endian-machines/20251213-040713 base: https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next patch link: https://lore.kernel.org/r/20251212.210504.1355099120650239629.rene%40exactco.de patch subject: [PATCH V4] drm/ast: Swap framebuffer writes on big-endian machines config: openrisc-randconfig-r122-20251217 (https://download.01.org/0day-ci/archive/20251221/202512210011.dKKTJkNT-lkp@intel.com/config) compiler: or1k-linux-gcc (GCC) 11.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251221/202512210011.dKKTJkNT-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/202512210011.dKKTJkNT-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned short [usertype] val @@ got restricted __be16 const [usertype] @@ drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: expected unsigned short [usertype] val drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: got restricted __be16 const [usertype] >> drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: sparse: cast from restricted __be16 >> drivers/gpu/drm/ast/ast_cursor.c:103:24: sparse: sparse: cast from restricted __be16 vim +103 drivers/gpu/drm/ast/ast_cursor.c 91 92 static void ast_set_cursor_image(struct ast_device *ast, const u8 *src, 93 unsigned int width, unsigned int height) 94 { 95 u8 __iomem *dst = ast_plane_vaddr(&ast->cursor_plane.base); 96 u32 csum = ast_cursor_calculate_checksum(src, width, height); 97 98 /* write pixel data */ 99 #if defined(__BIG_ENDIAN) 100 unsigned int i; 101 102 for (i = 0; i < AST_HWC_SIZE; i += 2) > 103 writew(swab16(*(const __be16 *)&src[i]), &dst[i]); 104 #else 105 memcpy_toio(dst, src, AST_HWC_SIZE); 106 #endif 107 108 /* write checksum + signature */ 109 dst += AST_HWC_SIZE; 110 writel(csum, dst); 111 writel(width, dst + AST_HWC_SIGNATURE_SizeX); 112 writel(height, dst + AST_HWC_SIGNATURE_SizeY); 113 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX); 114 writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY); 115 } 116 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki