Hi David, [auto build test WARNING on: net-next/master] [also build test WARNING on: v4.4-rc3 next-20151127] url: https://github.com/0day-ci/linux/commits/David-Decotigny/RFC-new-ETHTOOL_GSETTINGS-SSETTINGS-API/20151201-062040 config: blackfin-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=blackfin All warnings (new ones prefixed by >>): In file included from include/linux/netdevice.h:42:0, from drivers/staging/rtl8723au/include/osdep_service.h:30, from drivers/staging/rtl8723au/core/rtw_cmd.c:17: include/linux/ethtool.h: In function '__ethtool_add_link_modes': >> include/linux/ethtool.h:129:3: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] vim +129 include/linux/ethtool.h 113 struct { 114 ethtool_link_mode_mask_t supported; 115 ethtool_link_mode_mask_t advertising; 116 ethtool_link_mode_mask_t lp_advertising; 117 } link_modes; 118 }; 119 120 /* helper function for ethtool_build_link_mode and ethtool_add_link_modes */ 121 static inline int 122 __ethtool_add_link_modes(ethtool_link_mode_mask_t *dst, 123 unsigned nindices, 124 const enum ethtool_link_mode_bit_indices *indices) { 125 unsigned i; 126 int rv = 0; 127 128 for (i = 0 ; i < nindices ; ++i) { > 129 if (__ETHTOOL_LINK_MODE_IS_VALID_BIT(indices[i])) 130 set_bit(indices[i], dst->mask); 131 else 132 rv = -1; 133 } 134 return rv; 135 } 136 137 /* build link mode mask from variadic list of bit indices, return 0 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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