Hi Aline, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on v5.12-rc7 next-20210412] [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] url: https://github.com/0day-ci/linux/commits/Aline-Santana-Cordeiro/Replace-m... base: git://linuxtv.org/media_tree.git master config: arc-allyesconfig (attached as .config) compiler: arceb-elf-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/31032f2aa94de36a70de87f425eac62a2... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Aline-Santana-Cordeiro/Replace-macro-function-by-static-inline-function-in-file-iss-c/20210412-213252 git checkout 31032f2aa94de36a70de87f425eac62a2000367d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/staging/media/omap4iss/iss.c:30:15: error: return type defaults to 'int' [-Werror=return-type] 30 | static inline iss_print_register(iss, name) | ^~~~~~~~~~~~~~~~~~ drivers/staging/media/omap4iss/iss.c:30:15: error: function declaration isn't a prototype [-Werror=strict-prototypes] drivers/staging/media/omap4iss/iss.c: In function 'iss_print_register': In file included from include/linux/printk.h:409, from include/linux/kernel.h:16, from include/linux/clk.h:13, from drivers/staging/media/omap4iss/iss.c:10: drivers/staging/media/omap4iss/iss.c:32:30: error: stray '#' in program 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^ include/linux/dynamic_debug.h:91:14: note: in definition of macro 'DEFINE_DYNAMIC_DEBUG_METADATA' 91 | .format = (fmt), \ | ^~~ include/linux/dynamic_debug.h:147:2: note: in expansion of macro '__dynamic_func_call' 147 | __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:161:2: note: in expansion of macro '_dynamic_func_call' 161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \ | ^~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_dev_dbg' 123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~~~~ include/linux/dev_printk.h:123:23: note: in expansion of macro 'dev_fmt' 123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~ drivers/staging/media/omap4iss/iss.c:32:2: note: in expansion of macro 'dev_dbg' 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^~~~~~~ drivers/staging/media/omap4iss/iss.c:32:31: error: expected ')' before 'name' 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^~~~ include/linux/dynamic_debug.h:91:14: note: in definition of macro 'DEFINE_DYNAMIC_DEBUG_METADATA' 91 | .format = (fmt), \ | ^~~ include/linux/dynamic_debug.h:147:2: note: in expansion of macro '__dynamic_func_call' 147 | __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:161:2: note: in expansion of macro '_dynamic_func_call' 161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \ | ^~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_dev_dbg' 123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~~~~ include/linux/dev_printk.h:123:23: note: in expansion of macro 'dev_fmt' 123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~ drivers/staging/media/omap4iss/iss.c:32:2: note: in expansion of macro 'dev_dbg' 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^~~~~~~ include/linux/dynamic_debug.h:91:13: note: to match this '(' 91 | .format = (fmt), \ | ^ include/linux/dynamic_debug.h:127:2: note: in expansion of macro 'DEFINE_DYNAMIC_DEBUG_METADATA' 127 | DEFINE_DYNAMIC_DEBUG_METADATA(id, fmt); \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:147:2: note: in expansion of macro '__dynamic_func_call' 147 | __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:161:2: note: in expansion of macro '_dynamic_func_call' 161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \ | ^~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_dev_dbg' 123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~~~~ drivers/staging/media/omap4iss/iss.c:32:2: note: in expansion of macro 'dev_dbg' 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^~~~~~~ drivers/staging/media/omap4iss/iss.c:32:13: error: invalid type argument of '->' (have 'int') 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^~ include/linux/dynamic_debug.h:129:15: note: in definition of macro '__dynamic_func_call' 129 | func(&id, ##__VA_ARGS__); \ | ^~~~~~~~~~~ include/linux/dynamic_debug.h:161:2: note: in expansion of macro '_dynamic_func_call' 161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \ | ^~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_dev_dbg' 123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~~~~ drivers/staging/media/omap4iss/iss.c:32:2: note: in expansion of macro 'dev_dbg' 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^~~~~~~ drivers/staging/media/omap4iss/iss.c:32:30: error: stray '#' in program 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^ include/linux/dynamic_debug.h:129:15: note: in definition of macro '__dynamic_func_call' 129 | func(&id, ##__VA_ARGS__); \ | ^~~~~~~~~~~ include/linux/dynamic_debug.h:161:2: note: in expansion of macro '_dynamic_func_call' 161 | _dynamic_func_call(fmt,__dynamic_dev_dbg, \ | ^~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:123:2: note: in expansion of macro 'dynamic_dev_dbg' 123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~~~~ include/linux/dev_printk.h:123:23: note: in expansion of macro 'dev_fmt' 123 | dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~ drivers/staging/media/omap4iss/iss.c:32:2: note: in expansion of macro 'dev_dbg' 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^~~~~~~ drivers/staging/media/omap4iss/iss.c:32:31: error: expected ')' before 'name' 32 | dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", | ^~~~ vim +30 drivers/staging/media/omap4iss/iss.c 29 31 { 32 dev_dbg(iss->dev, "###ISS " #name "=0x%08x\n", 33 iss_reg_read(iss, OMAP4_ISS_MEM_TOP, ISS_##name)); 34 } 35 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org