diff options
| author | Sami Tolvanen <samitolvanen@google.com> | 2019-05-25 01:11:17 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2019-05-29 15:45:59 +0300 |
| commit | 0e358bd7b7ebd27e491dabed938eae254c17fe3b (patch) | |
| tree | ef16e50c90b53b2ebc36409197feca2057ed2737 /arch/arm64/include/asm/syscall_wrapper.h | |
| parent | 8ef8f368ce72b5e17f7c1f1ef15c38dcfd0fef64 (diff) | |
| download | linux-0e358bd7b7ebd27e491dabed938eae254c17fe3b.tar.xz | |
arm64: use the correct function type in SYSCALL_DEFINE0
Although a syscall defined using SYSCALL_DEFINE0 doesn't accept
parameters, use the correct function type to avoid indirect call
type mismatches with Control-Flow Integrity checking.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/syscall_wrapper.h')
| -rw-r--r-- | arch/arm64/include/asm/syscall_wrapper.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/arm64/include/asm/syscall_wrapper.h b/arch/arm64/include/asm/syscall_wrapper.h index a4477e515b79..507d0ee6bc69 100644 --- a/arch/arm64/include/asm/syscall_wrapper.h +++ b/arch/arm64/include/asm/syscall_wrapper.h @@ -30,10 +30,10 @@ } \ static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) -#define COMPAT_SYSCALL_DEFINE0(sname) \ - asmlinkage long __arm64_compat_sys_##sname(void); \ - ALLOW_ERROR_INJECTION(__arm64_compat_sys_##sname, ERRNO); \ - asmlinkage long __arm64_compat_sys_##sname(void) +#define COMPAT_SYSCALL_DEFINE0(sname) \ + asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused); \ + ALLOW_ERROR_INJECTION(__arm64_compat_sys_##sname, ERRNO); \ + asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused) #define COND_SYSCALL_COMPAT(name) \ cond_syscall(__arm64_compat_sys_##name); @@ -62,11 +62,11 @@ static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) #ifndef SYSCALL_DEFINE0 -#define SYSCALL_DEFINE0(sname) \ - SYSCALL_METADATA(_##sname, 0); \ - asmlinkage long __arm64_sys_##sname(void); \ - ALLOW_ERROR_INJECTION(__arm64_sys_##sname, ERRNO); \ - asmlinkage long __arm64_sys_##sname(void) +#define SYSCALL_DEFINE0(sname) \ + SYSCALL_METADATA(_##sname, 0); \ + asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused); \ + ALLOW_ERROR_INJECTION(__arm64_sys_##sname, ERRNO); \ + asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused) #endif #ifndef COND_SYSCALL |