From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 0708A883C for ; Mon, 5 Feb 2024 00:52:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707094381; cv=none; b=CpAyiWj+5PS+TgJk/SblecsY2qwrR/TMNJT6Rw4qge994ZVCCjx5zMbw9k/YwJ8aGfgBEOrlm9SUah86hDq1+iIPRj7VjIwEU6r97OO7Z4Mj5HwzOkQnsZeegNgs+K34yPP2jKJPSEvUi6rqChZ8N7X3YPOew3dcIO2Wvc77jt4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707094381; c=relaxed/simple; bh=IY6UPsFs52YpHCRKFUTBFV8hsRQu2YS9QvOMskQ5VQQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TRAs7X7lVQ5jsgqRhgsVkaS0VRrQrWEQEts9KeMpCmV2gus3evLNdnn7hx3GZZLD0MrFXw6GVpqos3sqGzq8fITXIc05TgzmxLox8GawId9rxCxrSYt8zdQOeuNSpztuUpfUV1+XTro7A+eyrQBsmpXnNTr40dp0NYHTEUmpmEE= 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=USv+FOEB; arc=none smtp.client-ip=198.175.65.13 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="USv+FOEB" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1707094379; x=1738630379; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=IY6UPsFs52YpHCRKFUTBFV8hsRQu2YS9QvOMskQ5VQQ=; b=USv+FOEBkTS8pa8OxpwLQnVD1yex+HZqJ3wtyaAd9nyYbcjmVRJkI1NG TxvrIp+qIf5udXEReVz4fETgtxMxIFWA099HVYesQzaLRolz9ekFOobJg D4R3KlYgFjkaAThYNlBK92KDtsTMkbpOC91qxs0bKc/JojEq5laPK71Vj gz9bf2jrpCeSqbF/UAW2xbihKEd299n88YqjVrZbeTKe64UIO87nuwsQt 0rKWjxXtKRXuGfBGiRb5VaagHF6cyfMcTxSvcqNT8IDDprlRiP/CSzF84 05IZknhK/xnWrR+Ms/uX6R1b9MTkcg1IyDl3QzjgVMEjTAZxigfwEUOxz g==; X-IronPort-AV: E=McAfee;i="6600,9927,10974"; a="11522727" X-IronPort-AV: E=Sophos;i="6.05,242,1701158400"; d="scan'208";a="11522727" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2024 16:52:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,242,1701158400"; d="scan'208";a="865486" Received: from lkp-server02.sh.intel.com (HELO 1098e01a32bc) ([10.239.97.151]) by fmviesa006.fm.intel.com with ESMTP; 04 Feb 2024 16:52:55 -0800 Received: from kbuild by 1098e01a32bc with local (Exim 4.96) (envelope-from ) id 1rWnED-00003c-01; Mon, 05 Feb 2024 00:52:53 +0000 Date: Mon, 5 Feb 2024 08:52:25 +0800 From: kernel test robot To: Andrea della Porta Cc: oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH 02/12] bcm2835-dma: Add proper 40-bit DMA support Message-ID: <202402050859.p2kotSyE-lkp@intel.com> References: Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Andrea, kernel test robot noticed the following build warnings: [auto build test WARNING on vkoul-dmaengine/next] [also build test WARNING on linus/master v6.8-rc3 next-20240202] [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/Andrea-della-Porta/bcm2835-dma-Add-support-for-per-channel-flags/20240204-150430 base: https://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine.git next patch link: https://lore.kernel.org/r/eeb94204c30c2182f5ffd3ec083c04399ecdee32.1706948717.git.andrea.porta%40suse.com patch subject: [PATCH 02/12] bcm2835-dma: Add proper 40-bit DMA support config: arm64-defconfig (https://download.01.org/0day-ci/archive/20240205/202402050859.p2kotSyE-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240205/202402050859.p2kotSyE-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/202402050859.p2kotSyE-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/dma/bcm2835-dma.c:1175:5: warning: no previous prototype for 'bcm2711_dma40_memcpy_init' [-Wmissing-prototypes] 1175 | int bcm2711_dma40_memcpy_init(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/dma/bcm2835-dma.c:1190:6: warning: no previous prototype for 'bcm2711_dma40_memcpy' [-Wmissing-prototypes] 1190 | void bcm2711_dma40_memcpy(dma_addr_t dst, dma_addr_t src, size_t size) | ^~~~~~~~~~~~~~~~~~~~ vim +/bcm2711_dma40_memcpy_init +1175 drivers/dma/bcm2835-dma.c 1174 > 1175 int bcm2711_dma40_memcpy_init(void) 1176 { 1177 if (!memcpy_parent) 1178 return -EPROBE_DEFER; 1179 1180 if (!memcpy_chan) 1181 return -EINVAL; 1182 1183 if (!memcpy_scb) 1184 return -ENOMEM; 1185 1186 return 0; 1187 } 1188 EXPORT_SYMBOL(bcm2711_dma40_memcpy_init); 1189 > 1190 void bcm2711_dma40_memcpy(dma_addr_t dst, dma_addr_t src, size_t size) 1191 { 1192 struct bcm2711_dma40_scb *scb = memcpy_scb; 1193 unsigned long flags; 1194 1195 if (!scb) { 1196 pr_err("%s not initialised!\n", __func__); 1197 return; 1198 } 1199 1200 spin_lock_irqsave(&memcpy_lock, flags); 1201 1202 scb->ti = 0; 1203 scb->src = lower_32_bits(src); 1204 scb->srci = upper_32_bits(src) | BCM2711_DMA40_MEMCPY_XFER_INFO; 1205 scb->dst = lower_32_bits(dst); 1206 scb->dsti = upper_32_bits(dst) | BCM2711_DMA40_MEMCPY_XFER_INFO; 1207 scb->len = size; 1208 scb->next_cb = 0; 1209 1210 writel((u32)(memcpy_scb_dma >> 5), memcpy_chan + BCM2711_DMA40_CB); 1211 writel(BCM2711_DMA40_MEMCPY_FLAGS + BCM2711_DMA40_ACTIVE, 1212 memcpy_chan + BCM2711_DMA40_CS); 1213 1214 /* Poll for completion */ 1215 while (!(readl(memcpy_chan + BCM2711_DMA40_CS) & BCM2711_DMA40_END)) 1216 cpu_relax(); 1217 1218 writel(BCM2711_DMA40_END, memcpy_chan + BCM2711_DMA40_CS); 1219 1220 spin_unlock_irqrestore(&memcpy_lock, flags); 1221 } 1222 EXPORT_SYMBOL(bcm2711_dma40_memcpy); 1223 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki