On Mon, 8 Apr 2019 23:26:21 +0200 Arnd Bergmann <arnd@xxxxxxxx> wrote: > Building system calls with clang results in a warning > about an alias from a global function to a static one: > > ../fs/namei.c:3847:1: warning: unused function '__se_sys_mkdirat' [-Wunused-function] > SYSCALL_DEFINE3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode) > ^ > ../include/linux/syscalls.h:219:36: note: expanded from macro 'SYSCALL_DEFINE3' > #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) > ^ > ../include/linux/syscalls.h:228:2: note: expanded from macro 'SYSCALL_DEFINEx' > __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) > ^ > ../arch/s390/include/asm/syscall_wrapper.h:126:18: note: expanded from macro '__SYSCALL_DEFINEx' > asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ > ^ > <scratch space>:31:1: note: expanded from here > __se_sys_mkdirat > ^ > > The only reference to the static __se_sys_mkdirat() here is the alias, but > this only gets evaluated later. Making this function global as well avoids > the warning. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Added to s390/linux:features for the next merge window. Thanks. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.
