From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 A58A624A049; Sun, 9 Nov 2025 22:40:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762728058; cv=none; b=Ryl/pqseQG5CBgEff26itAvMA7ZsyqAV/w0n9Oc4qifj7qnJ9KkfqOMchTU+FDnpzD87DKHeBRRmVOnrTZEZMLQOXS/sHUUKf/njzW6BvLEBqbRiZBibwNSCp1ZK+dLHHpS9QPC/Jqxe0EmPmQqBlF9qqtumpuSJ+rT/iy+U64Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762728058; c=relaxed/simple; bh=cMmPa9Fxj7ZO+ut5H2ulYJ53jkvVxvjyBkouir73++0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YCawxlEKfcDb5tbT7T6E3+ljUYDXnHWr7lTXz5YmPDYh7Rq0EB76G1YX1lESXWpi6tYr10w3jHzCSDsZauDz/aVYYnq0XzJpmfdKoy+XfWXBPVzQLZmuH9jO8QcqDW1zaU/rbFlJAq95S1oiOF186T8AlUZbjvOyPbafjHCowqo= 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=H6/ufYUE; arc=none smtp.client-ip=192.198.163.9 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="H6/ufYUE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1762728057; x=1794264057; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=cMmPa9Fxj7ZO+ut5H2ulYJ53jkvVxvjyBkouir73++0=; b=H6/ufYUExB+5X8KVqNlDYlQELHoLdvkQtDhRlo4VR7+LVeIDBNJdjaR2 NivFWtMjisJP8eWLf+pj0aDtiAN+eE0zXU+fLTuGrxhcoWZdeO/jvM3Hy HuecjagmKFkKIR3HoSAM5l6GaocT37n2stCtBwVDS7YrB/mtAv+zfNKYV ZTss8PMisgAaSskC7Ena5XEIwFpGrPC8qSWb1NQL+2aLRnO0g2zFSvjMr 51tn0Rpz53keNXBR/FesSQe/ts/P30r70UcoIcO1uQ7vv5siw18nM/nsS k8eZpYyemMnocZZZ/xcXzBBiEN7McUbMPcp54EXQBgxb6+SslDLWsBDir w==; X-CSE-ConnectionGUID: RhgSzLsaQxiAmIXyjh9FSQ== X-CSE-MsgGUID: IJKCj/EGQDa8jwv5ZqAq/g== X-IronPort-AV: E=McAfee;i="6800,10657,11608"; a="75472365" X-IronPort-AV: E=Sophos;i="6.19,292,1754982000"; d="scan'208";a="75472365" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2025 14:40:56 -0800 X-CSE-ConnectionGUID: xAz8T/LTTc2AJbg4gm+ITg== X-CSE-MsgGUID: lWAqsRqVTdurGKj8c/WK7w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,292,1754982000"; d="scan'208";a="193540812" Received: from lkp-server01.sh.intel.com (HELO 6ef82f2de774) ([10.239.97.150]) by fmviesa004.fm.intel.com with ESMTP; 09 Nov 2025 14:40:53 -0800 Received: from kbuild by 6ef82f2de774 with local (Exim 4.96) (envelope-from ) id 1vIE5b-0002Sl-1r; Sun, 09 Nov 2025 22:40:51 +0000 Date: Mon, 10 Nov 2025 06:40:17 +0800 From: kernel test robot To: Sumit Kumar , Manivannan Sadhasivam Cc: oe-kbuild-all@lists.linux.dev, Krishna Chaitanya Chundru , Akhil Vinod , Subramanian Ananthanarayanan , linux-kernel@vger.kernel.org, mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, quic_vpernami@quicinc.com, Sumit Kumar Subject: Re: [PATCH v2 3/3] bus: mhi: ep: Add loopback driver for data path testing Message-ID: <202511100649.KfikwcaY-lkp@intel.com> References: <20251104-loopback_mhi-v2-3-727a3fd9aa74@oss.qualcomm.com> 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=us-ascii Content-Disposition: inline In-Reply-To: <20251104-loopback_mhi-v2-3-727a3fd9aa74@oss.qualcomm.com> Hi Sumit, kernel test robot noticed the following build warnings: [auto build test WARNING on e6b9dce0aeeb91dfc0974ab87f02454e24566182] url: https://github.com/intel-lab-lkp/linux/commits/Sumit-Kumar/bus-mhi-host-Add-loopback-driver-with-sysfs-interface/20251104-174320 base: e6b9dce0aeeb91dfc0974ab87f02454e24566182 patch link: https://lore.kernel.org/r/20251104-loopback_mhi-v2-3-727a3fd9aa74%40oss.qualcomm.com patch subject: [PATCH v2 3/3] bus: mhi: ep: Add loopback driver for data path testing config: csky-randconfig-r061-20251110 (https://download.01.org/0day-ci/archive/20251110/202511100649.KfikwcaY-lkp@intel.com/config) compiler: csky-linux-gcc (GCC) 15.1.0 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/202511100649.KfikwcaY-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> drivers/bus/mhi/ep/mhi_ep_loopback.c:80:2-7: WARNING: NULL check before some freeing functions is not needed. -- >> drivers/bus/mhi/ep/mhi_ep_loopback.c:46:8-15: WARNING opportunity for kmemdup vim +80 drivers/bus/mhi/ep/mhi_ep_loopback.c 37 38 static void mhi_ep_loopback_ul_callback(struct mhi_ep_device *mhi_dev, 39 struct mhi_result *mhi_res) 40 { 41 struct mhi_ep_loopback *mhi_ep_lb = dev_get_drvdata(&mhi_dev->dev); 42 struct mhi_ep_loopback_work *mhi_ep_lb_work; 43 void *buf; 44 45 if (!(mhi_res->transaction_status)) { > 46 buf = kmalloc(mhi_res->bytes_xferd, GFP_KERNEL); 47 if (!buf) { 48 dev_err(&mhi_dev->dev, "Failed to allocate buffer\n"); 49 return; 50 } 51 52 memcpy(buf, mhi_res->buf_addr, mhi_res->bytes_xferd); 53 54 mhi_ep_lb_work = kmalloc(sizeof(*mhi_ep_lb_work), GFP_KERNEL); 55 if (!mhi_ep_lb_work) { 56 dev_err(&mhi_dev->dev, "Unable to allocate the work structure\n"); 57 kfree(buf); 58 return; 59 } 60 61 INIT_WORK(&mhi_ep_lb_work->work, mhi_ep_loopback_work_handler); 62 mhi_ep_lb_work->mdev = mhi_dev; 63 mhi_ep_lb_work->buf = buf; 64 mhi_ep_lb_work->len = mhi_res->bytes_xferd; 65 66 queue_work(mhi_ep_lb->loopback_wq, &mhi_ep_lb_work->work); 67 } 68 } 69 70 static void mhi_ep_loopback_dl_callback(struct mhi_ep_device *mhi_dev, 71 struct mhi_result *mhi_res) 72 { 73 void *buf; 74 75 if (mhi_res->transaction_status) 76 return; 77 78 buf = mhi_res->buf_addr; 79 if (buf) > 80 kfree(buf); 81 } 82 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki