Hi Arend, kernel test robot noticed the following build warnings: [auto build test WARNING on wireless-next/main] [also build test WARNING on wireless/main linus/master v6.7-rc8 next-20231222] [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/Arend-van-Spriel/wifi-brcmfmac-export-firmware-interface-functions/20240101-164717 base: https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main patch link: https://lore.kernel.org/r/20240101084430.161821-2-arend.vanspriel%40broadcom.com patch subject: [PATCH 1/4] wifi: brcmfmac: export firmware interface functions config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20240102/202401020903.F2PfPAdw-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240102/202401020903.F2PfPAdw-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202401020903.F2PfPAdw-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from include/uapi/linux/swab.h:8, from include/linux/swab.h:5, from include/uapi/linux/byteorder/big_endian.h:14, from include/linux/byteorder/big_endian.h:5, from arch/m68k/include/uapi/asm/byteorder.h:5, from include/asm-generic/bitops/le.h:6, from arch/m68k/include/asm/bitops.h:566, from include/linux/bitops.h:68, from include/linux/kernel.h:23, from drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:8: In function '__arch_swab32', inlined from '__fswab32' at include/uapi/linux/swab.h:60:9, inlined from 'brcmf_fil_cmd_int_get' at drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h:99:19, inlined from 'brcmf_cfg80211_get_station_ibss' at drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:3088:8: >> arch/m68k/include/uapi/asm/swab.h:22:9: warning: 'rate' is used uninitialized [-Wuninitialized] 22 | __asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val)); | ^~~~~~~ drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c: In function 'brcmf_cfg80211_get_station_ibss': drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:3084:13: note: 'rate' was declared here 3084 | u32 rate; | ^~~~ vim +/rate +22 arch/m68k/include/uapi/asm/swab.h 9863a0babc2f0d arch/m68k/include/asm/swab.h Greg Ungerer 2009-03-16 19 9863a0babc2f0d arch/m68k/include/asm/swab.h Greg Ungerer 2009-03-16 20 static inline __attribute_const__ __u32 __arch_swab32(__u32 val) 9863a0babc2f0d arch/m68k/include/asm/swab.h Greg Ungerer 2009-03-16 21 { 9863a0babc2f0d arch/m68k/include/asm/swab.h Greg Ungerer 2009-03-16 @22 __asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val)); 9863a0babc2f0d arch/m68k/include/asm/swab.h Greg Ungerer 2009-03-16 23 return val; 9863a0babc2f0d arch/m68k/include/asm/swab.h Greg Ungerer 2009-03-16 24 } 9863a0babc2f0d arch/m68k/include/asm/swab.h Greg Ungerer 2009-03-16 25 #define __arch_swab32 __arch_swab32 6aeea60aee9454 arch/m68k/include/asm/swab.h Harvey Harrison 2009-01-20 26 #endif 9863a0babc2f0d arch/m68k/include/asm/swab.h Greg Ungerer 2009-03-16 27 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki