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X-CSE-ConnectionGUID: PM1nT2kHTWe1b4pMqDuUkA== X-CSE-MsgGUID: dC7IIAI6Qra7Kda4p7HLiw== X-IronPort-AV: E=McAfee;i="6800,10657,11939"; a="1100200" X-IronPort-AV: E=Sophos;i="6.27,167,1787036400"; d="scan'208";a="1100200" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2026 23:20:23 -0700 X-CSE-ConnectionGUID: 0KnJaPIiSyG2YBZP6J8xiw== X-CSE-MsgGUID: i4q5CNh/RtWSTnnn1u5XYw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,167,1787036400"; d="scan'208";a="2431988" Received: from lkp-server01.sh.intel.com (HELO 0caa9d2d175c) ([10.239.97.150]) by orviesa003.jf.intel.com with ESMTP; 18 Oct 2026 23:20:20 -0700 Received: from kbuild by 0caa9d2d175c with local (Exim 4.98.2) (envelope-from ) id 1xIgjI-00000000LKs-35JD; Mon, 19 Oct 2026 06:20:16 +0000 Date: Mon, 19 Oct 2026 14:19:40 +0800 From: kernel test robot To: Alexander Usyskin , Arnd Bergmann , Greg Kroah-Hartman Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Menachem Adin , Andrzej Kacprowski , Karol Wachowski , Alexander Usyskin , Reuven Abliyev Subject: Re: [PATCH char-misc-next v2 4/4] issei: add driver to driver interface Message-ID: <202610191455.cc2xaeEs-lkp@intel.com> References: <20261018-issei_pm_and_itf-v2-4-7a07452e3606@intel.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: <20261018-issei_pm_and_itf-v2-4-7a07452e3606@intel.com> Hi Alexander, kernel test robot noticed the following build warnings: [auto build test WARNING on 79e5797d243a466138f641932f81dc69f796060c] url: https://github.com/intel-lab-lkp/linux/commits/Alexander-Usyskin/issei-save-power_down-flag-while-processing-event/20261018-123052 base: 79e5797d243a466138f641932f81dc69f796060c patch link: https://lore.kernel.org/r/20261018-issei_pm_and_itf-v2-4-7a07452e3606%40intel.com patch subject: [PATCH char-misc-next v2 4/4] issei: add driver to driver interface config: i386-randconfig-1001-20261019 (https://download.01.org/0day-ci/archive/20261019/202610191455.cc2xaeEs-lkp@intel.com/config) compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261019/202610191455.cc2xaeEs-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/202610191455.cc2xaeEs-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/misc/issei/issei_device.c:163:59: warning: format specifies type 'long' but the argument has type 'ssize_t' (aka 'int') [-Wformat] 163 | dev_dbg(&idev->dev, "Failed writing data ret = %ld\n", ret); | ~~~ ^~~ | %zd include/linux/dev_printk.h:171:49: note: expanded from macro 'dev_dbg' 171 | dev_no_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ include/linux/dev_printk.h:139:35: note: expanded from macro 'dev_no_printk' 139 | _dev_printk(level, dev, fmt, ##__VA_ARGS__); \ | ~~~ ^~~~~~~~~~~ 1 warning generated. vim +163 drivers/misc/issei/issei_device.c 113 114 /** 115 * issei_device_write - send data to the firmware client. 116 * @ctx: opaque context 117 * @ubuf: data to send 118 * @length: data length 119 * @timeout: operation timeout in milliseconds 120 * 121 * Return: >=0 data length on success, <0 on error 122 */ 123 ssize_t issei_device_write(void *ctx, const u8 *ubuf, size_t length, unsigned long timeout) 124 { 125 struct issei_host_client *cl = ctx; 126 struct issei_device *idev = cl->idev; 127 ssize_t ret; 128 long wret; 129 130 if (idev->rst_state != ISSEI_RST_STATE_DONE) { 131 dev_dbg(&idev->dev, "Device is in transition\n"); 132 return -EBUSY; 133 } 134 135 if (!length) 136 return 0; 137 138 /* sanity check */ 139 if (length > idev->dma.length.h2f) { 140 dev_dbg(&idev->dev, "Write is too big %zu > %zu\n", length, 141 idev->dma.length.h2f); 142 return -EFBIG; 143 } 144 145 u8 *buf __free(kfree) = kmemdup(ubuf, length, GFP_KERNEL); 146 if (!buf) 147 return -ENOMEM; 148 149 do { 150 ret = issei_cl_write(cl, buf, length); 151 if (ret < 0 && ret != -EAGAIN) 152 return ret; 153 /* buf is consumed by issei_cl_write on success */ 154 if (ret >= 0) 155 retain_and_null_ptr(buf); 156 wret = wait_event_interruptible_timeout(cl->write_wait, 157 issei_cl_check_write(cl) != 1, 158 msecs_to_jiffies(timeout)); 159 if (wret == 0) /* timeout */ 160 wret = -ETIMEDOUT; 161 if (wret < 0) { 162 issei_cl_clean_all_wbuf(cl); > 163 dev_dbg(&idev->dev, "Failed writing data ret = %ld\n", ret); 164 return wret; 165 } 166 } while (ret == -EAGAIN); 167 168 return ret; 169 } 170 EXPORT_SYMBOL_GPL(issei_device_write); 171 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki