Hi, [auto build test WARNING on v4.7-rc1] [cannot apply to next-20160603] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/George-Spelvin/Clean-up-and-shrink-uuid-input-output/20160604-131729 config: x86_64-lkp (attached as .config) compiler: gcc-4.9 (Debian 4.9.3-14) 4.9.3 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): lib/uuid.c: In function '__uuid_to_bin': >> lib/uuid.c:107:3: warning: ignoring return value of 'hex2bin', declared with >> attribute warn_unused_result [-Wunused-result] hex2bin(b + i, uuid + pos[i], 1); ^ vim +/hex2bin +107 lib/uuid.c 91 return true; 92 } 93 EXPORT_SYMBOL(uuid_is_valid); 94 95 /* For each binary byte, string offset in ASCII UUID where it appears */ 96 const u8 uuid_be_pos[16] = {0,2,4,6,9,11,14,16,19,21,24,26,28,30,32,34}; 97 const u8 uuid_le_pos[16] = {6,4,2,0,11,9,16,14,19,21,24,26,28,30,32,34}; 98 99 static int __uuid_to_bin(const char uuid[36], __u8 b[16], const u8 pos[16]) 100 { 101 unsigned int i; 102 103 if (!uuid_is_valid(uuid)) 104 return -EINVAL; 105 106 for (i = 0; i < 16; i++) > 107 hex2bin(b + i, uuid + pos[i], 1); 108 109 return 0; 110 } 111 112 int uuid_le_to_bin(const char *uuid, uuid_le *u) 113 { 114 return __uuid_to_bin(uuid, u->b, uuid_le_pos); 115 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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