Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on groeck-staging/hwmon-next] [also build test WARNING on robh/for-next linus/master v6.3-rc7] [cannot apply to brgl/gpio/for-next next-20230417] [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/nick-hawkins-hpe-com/gpio-gxp-Add-HPE-GXP-GPIO/20230418-233513 base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next patch link: https://lore.kernel.org/r/20230418152824.110823-4-nick.hawkins%40hpe.com patch subject: [PATCH v1 3/9] hwmon: (gxp-psu) Add driver to read HPE PSUs config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230419/202304190301.9jtv8uzG-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 12.1.0 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/intel-lab-lkp/linux/commit/4006e868883aedc37a54480167f6f9dc377db1cc git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review nick-hawkins-hpe-com/gpio-gxp-Add-HPE-GXP-GPIO/20230418-233513 git checkout 4006e868883aedc37a54480167f6f9dc377db1cc # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/hwmon/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304190301.9jtv8uzG-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/hwmon/gxp-psu.c:62:4: warning: no previous prototype for 'get_psu_inst' [-Wmissing-prototypes] 62 | u8 get_psu_inst(void) | ^~~~~~~~~~~~ >> drivers/hwmon/gxp-psu.c:71:4: warning: no previous prototype for 'get_psu_ac' [-Wmissing-prototypes] 71 | u8 get_psu_ac(void) | ^~~~~~~~~~ >> drivers/hwmon/gxp-psu.c:80:4: warning: no previous prototype for 'get_psu_dc' [-Wmissing-prototypes] 80 | u8 get_psu_dc(void) | ^~~~~~~~~~ >> drivers/hwmon/gxp-psu.c:89:6: warning: no previous prototype for 'update_presence' [-Wmissing-prototypes] 89 | void update_presence(u8 id) | ^~~~~~~~~~~~~~~ >> drivers/hwmon/gxp-psu.c:376:6: warning: no previous prototype for 'swapbytes' [-Wmissing-prototypes] 376 | void swapbytes(void *input, size_t len) | ^~~~~~~~~ drivers/hwmon/gxp-psu.c: In function 'gxp_psu_read_string': >> drivers/hwmon/gxp-psu.c:528:17: warning: this statement may fall through [-Wimplicit-fallthrough=] 528 | switch (attr) { | ^~~~~~ drivers/hwmon/gxp-psu.c:535:9: note: here 535 | case hwmon_in: | ^~~~ drivers/hwmon/gxp-psu.c:536:17: warning: this statement may fall through [-Wimplicit-fallthrough=] 536 | switch (attr) { | ^~~~~~ drivers/hwmon/gxp-psu.c:543:9: note: here 543 | case hwmon_fan: | ^~~~ drivers/hwmon/gxp-psu.c:544:17: warning: this statement may fall through [-Wimplicit-fallthrough=] 544 | switch (attr) { | ^~~~~~ drivers/hwmon/gxp-psu.c:551:9: note: here 551 | case hwmon_curr: | ^~~~ drivers/hwmon/gxp-psu.c:552:17: warning: this statement may fall through [-Wimplicit-fallthrough=] 552 | switch (attr) { | ^~~~~~ drivers/hwmon/gxp-psu.c:559:9: note: here 559 | case hwmon_temp: | ^~~~ vim +/get_psu_inst +62 drivers/hwmon/gxp-psu.c 61 > 62 u8 get_psu_inst(void) 63 { 64 if (!pl_psu) 65 return 0; 66 67 return readb(pl_psu); 68 } 69 EXPORT_SYMBOL(get_psu_inst); 70 > 71 u8 get_psu_ac(void) 72 { 73 if (!pl_psu) 74 return 0; 75 76 return readb(pl_psu + 0x02); 77 } 78 EXPORT_SYMBOL(get_psu_ac); 79 > 80 u8 get_psu_dc(void) 81 { 82 if (!pl_psu) 83 return 0; 84 85 return readb(pl_psu + 0x03); 86 } 87 EXPORT_SYMBOL(get_psu_dc); 88 > 89 void update_presence(u8 id) 90 { 91 unsigned int i; 92 unsigned long temp = (unsigned long)readb(pl_psu); 93 94 for_each_set_bit(i, &temp, 8) { 95 if (i == id) 96 psus[id]->present = true; 97 } 98 99 temp = ~temp; 100 for_each_set_bit(i, &temp, 8) { 101 if (i == id) 102 psus[id]->present = false; 103 } 104 } 105 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
