tree: https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git syscall-tbl-6.11 head: ece1b5ebc0b7064a8a130f64e85a81ec76381c3f commit: ce67487a0460367a60a68fa3de3e66b8caaa3b7c [77/80] syscalls: check syscall prototypes config: um-allyesconfig (https://download.01.org/0day-ci/archive/20240725/202407251910.EGPCqgCG-lkp@xxxxxxxxx/config) compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240725/202407251910.EGPCqgCG-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/202407251910.EGPCqgCG-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from arch/x86/um/syscalls_64.c:10: arch/x86/um/syscalls_64.c: In function '__se_sys_mmap': >> include/linux/syscalls.h:247:42: error: 'sys_mmap' undeclared (first use in this function); did you mean 'sys_mremap'? 247 | (void)(__do_sys##name == sys##name); \ | ^~~ include/linux/syscalls.h:229:9: note: in expansion of macro '__SYSCALL_DEFINEx' 229 | __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) | ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:221:36: note: in expansion of macro 'SYSCALL_DEFINEx' 221 | #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/x86/um/syscalls_64.c:56:1: note: in expansion of macro 'SYSCALL_DEFINE6' 56 | SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, | ^~~~~~~~~~~~~~~ include/linux/syscalls.h:247:42: note: each undeclared identifier is reported only once for each function it appears in 247 | (void)(__do_sys##name == sys##name); \ | ^~~ include/linux/syscalls.h:229:9: note: in expansion of macro '__SYSCALL_DEFINEx' 229 | __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) | ^~~~~~~~~~~~~~~~~ include/linux/syscalls.h:221:36: note: in expansion of macro 'SYSCALL_DEFINEx' 221 | #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/x86/um/syscalls_64.c:56:1: note: in expansion of macro 'SYSCALL_DEFINE6' 56 | SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len, | ^~~~~~~~~~~~~~~ vim +247 include/linux/syscalls.h 232 233 /* 234 * The asmlinkage stub is aliased to a function named __se_sys_*() which 235 * sign-extends 32-bit ints to longs whenever needed. The actual work is 236 * done within __do_sys_*(). 237 */ 238 #ifndef __SYSCALL_DEFINEx 239 #define __SYSCALL_DEFINEx(x, name, ...) \ 240 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 241 static inline asmlinkage long \ 242 __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ 243 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 244 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 245 { \ 246 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ > 247 (void)(__do_sys##name == sys##name); \ 248 __MAP(x,__SC_TEST,__VA_ARGS__); \ 249 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 250 return ret; \ 251 } \ 252 __diag_push(); \ 253 __diag_ignore(GCC, 8, "-Wattribute-alias", \ 254 "Type aliasing is used to sanitize syscall arguments");\ 255 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 256 __attribute__((alias(__stringify(__se_sys##name)))); \ 257 __diag_pop(); \ 258 static inline asmlinkage long \ 259 __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 260 #endif /* __SYSCALL_DEFINEx */ 261 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
