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X-CSE-ConnectionGUID: jAx+46yUST6IvEV+vf9XhA== X-CSE-MsgGUID: YA//qDC9RHS/V9z73sRWOA== X-IronPort-AV: E=McAfee;i="6800,10657,11898"; a="88950522" X-IronPort-AV: E=Sophos;i="6.25,267,1779174000"; d="scan'208";a="88950522" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Sep 2026 06:12:42 -0700 X-CSE-ConnectionGUID: 6cEfPEyNR26lL+sjXY5XPw== X-CSE-MsgGUID: Tre+91zlTESYHXy0970PYA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,267,1779174000"; d="scan'208";a="264511757" Received: from lkp-server01.sh.intel.com (HELO dff15f1b2031) ([10.239.97.150]) by fmviesa009.fm.intel.com with ESMTP; 07 Sep 2026 06:12:41 -0700 Received: from kbuild by dff15f1b2031 with local (Exim 4.98.2) (envelope-from ) id 1x3Z9K-000000000vB-3p8i; Mon, 07 Sep 2026 13:12:38 +0000 Date: Mon, 07 Sep 2026 21:11:54 +0800 From: kernel test robot To: Tanmay Shah Cc: oe-kbuild-all@lists.linux.dev, Mathieu Poirier Subject: [remoteproc:rpmsg-next 6/6] samples/rpmsg/rpmsg_client_sample.c:68:59: warning: format specifies type 'long' but the argument has type 'ssize_t' (aka 'int') Message-ID: <202609072042.wraEH9fu-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux.git rpmsg-next head: 1029c89bafc714c1b987f29e3bc124a7b63d28d5 commit: 1029c89bafc714c1b987f29e3bc124a7b63d28d5 [6/6] samples: rpmsg: Add MTU size info config: i386-randconfig-063-20260907 (https://download.01.org/0day-ci/archive/20260907/202609072042.wraEH9fu-lkp@intel.com/config) compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211) sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260907/202609072042.wraEH9fu-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/202609072042.wraEH9fu-lkp@intel.com/ All warnings (new ones prefixed by >>): >> samples/rpmsg/rpmsg_client_sample.c:68:59: warning: format specifies type 'long' but the argument has type 'ssize_t' (aka 'int') [-Wformat] 68 | dev_warn(&rpdev->dev, "invalid rpmsg MTU size = %ld\n", mtu); | ~~~ ^~~ | %zd include/linux/dev_printk.h:156:70: note: expanded from macro 'dev_warn' 156 | dev_printk_index_wrap(_dev_warn, KERN_WARNING, dev, dev_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ~~~ ^~~~~~~~~~~ samples/rpmsg/rpmsg_client_sample.c:72:50: warning: format specifies type 'long' but the argument has type 'ssize_t' (aka 'int') [-Wformat] 72 | dev_info(&rpdev->dev, "rpmsg MTU size = %ld\n", mtu); | ~~~ ^~~ | %zd include/linux/dev_printk.h:160:67: note: expanded from macro 'dev_info' 160 | dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ~~~ ^~~~~~~~~~~ samples/rpmsg/rpmsg_client_sample.c:79:17: warning: format specifies type 'long' but the argument has type 'ssize_t' (aka 'int') [-Wformat] 78 | "message size %zu exceeds rpmsg MTU size %ld\n", | ~~~ | %zd 79 | strlen(MSG), mtu); | ^~~ include/linux/dev_printk.h:154:65: note: expanded from macro 'dev_err' 154 | dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__) | ~~~ ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ~~~ ^~~~~~~~~~~ 3 warnings generated. vim +68 samples/rpmsg/rpmsg_client_sample.c 50 51 static int rpmsg_sample_probe(struct rpmsg_device *rpdev) 52 { 53 int ret; 54 struct instance_data *idata; 55 ssize_t mtu, msg_len; 56 57 dev_info(&rpdev->dev, "new channel: 0x%x -> 0x%x!\n", 58 rpdev->src, rpdev->dst); 59 60 idata = devm_kzalloc(&rpdev->dev, sizeof(*idata), GFP_KERNEL); 61 if (!idata) 62 return -ENOMEM; 63 64 dev_set_drvdata(&rpdev->dev, idata); 65 66 mtu = rpmsg_get_mtu(rpdev->ept); 67 if (mtu < 0) { > 68 dev_warn(&rpdev->dev, "invalid rpmsg MTU size = %ld\n", mtu); 69 return mtu; 70 } 71 72 dev_info(&rpdev->dev, "rpmsg MTU size = %ld\n", mtu); 73 74 msg_len = strlen(MSG); 75 /* make sure our message fits in a single rpmsg buffer */ 76 if (msg_len > mtu) { 77 dev_err(&rpdev->dev, 78 "message size %zu exceeds rpmsg MTU size %ld\n", 79 strlen(MSG), mtu); 80 return -EMSGSIZE; 81 } 82 83 /* send a message to our remote processor */ 84 ret = rpmsg_send(rpdev->ept, MSG, msg_len); 85 if (ret) { 86 dev_err(&rpdev->dev, "rpmsg_send failed: %d\n", ret); 87 return ret; 88 } 89 90 return 0; 91 } 92 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki