tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 5b14671be58d0084e7e2d1cc9c2c36a94467f6e0 commit: 5456ffdee666c66e27ccc1006f9afe83ad55559f powerpc/spufs: simplify spufs core dumping date: 5 weeks ago config: powerpc-randconfig-m031-20200607 (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> smatch warnings: arch/powerpc/platforms/cell/spufs/coredump.c:124 spufs_arch_write_note() warn: unsigned 'ret' is never less than zero. vim +/ret +124 arch/powerpc/platforms/cell/spufs/coredump.c 101 102 static int spufs_arch_write_note(struct spu_context *ctx, int i, 103 struct coredump_params *cprm, int dfd) 104 { 105 size_t sz = spufs_coredump_read[i].size; 106 char fullname[80]; 107 struct elf_note en; 108 size_t ret; 109 110 sprintf(fullname, "SPU/%d/%s", dfd, spufs_coredump_read[i].name); 111 en.n_namesz = strlen(fullname) + 1; 112 en.n_descsz = sz; 113 en.n_type = NT_SPU; 114 115 if (!dump_emit(cprm, &en, sizeof(en))) 116 return -EIO; 117 if (!dump_emit(cprm, fullname, en.n_namesz)) 118 return -EIO; 119 if (!dump_align(cprm, 4)) 120 return -EIO; 121 122 if (spufs_coredump_read[i].dump) { 123 ret = spufs_coredump_read[i].dump(ctx, cprm); > 124 if (ret < 0) 125 return ret; 126 } else { 127 char buf[32]; 128 129 ret = snprintf(buf, sizeof(buf), "0x%.16llx", 130 spufs_coredump_read[i].get(ctx)); 131 if (ret >= sizeof(buf)) 132 return sizeof(buf); 133 134 /* count trailing the NULL: */ 135 if (!dump_emit(cprm, buf, ret + 1)) 136 return -EIO; 137 } 138 139 if (!dump_skip(cprm, roundup(cprm->pos - ret + sz, 4) - cprm->pos)) 140 return -EIO; 141 return 0; 142 } 143 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
