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| author |  Arnd Bergmann <arnd@arndb.de>
| 2023-05-16 18:06:30 +0200 |
|---|---|---|
| committer |  Catalin Marinas <catalin.marinas@arm.com>
| 2023-05-25 17:44:01 +0100 |
| commit | 6ac19f96515e1f5198503701d3aecf60d5bc83e5 (patch) | |
| tree | 072698328eb1f9ede943282dc6d0752a58cdb1ec /arch/arm64/include/asm/compat.h | |
| parent | arm64: add scs_patch_vmlinux prototype (diff) | |
| download | linux-6ac19f96515e1f5198503701d3aecf60d5bc83e5.tar.gz linux-6ac19f96515e1f5198503701d3aecf60d5bc83e5.tar.bz2 linux-6ac19f96515e1f5198503701d3aecf60d5bc83e5.zip | |
arm64: avoid prototype warnings for syscalls
With W=1 warnings enabled, there are lots of complaints about
missing prototypes for system calls, plus a few other related
ones:
arch/arm64/kernel/sys_compat.c:68:6: error: no previous prototype for 'compat_arm_syscall' [-Werror=missing-prototypes]
arch/arm64/include/asm/syscall_wrapper.h:76:32: error: no previous prototype for '__arm64_sys_io_setup' [-Werror=missing-prototypes]
arch/arm64/include/asm/syscall_wrapper.h:41:32: error: no previous prototype for '__arm64_compat_sys_io_setup' [-Werror=missing-prototypes]
arch/arm64/include/asm/syscall_wrapper.h:76:32: error: no previous prototype for '__arm64_sys_io_destroy' [-Werror=missing-prototypes]
arch/arm64/include/asm/syscall_wrapper.h:76:32: error: no previous prototype for '__arm64_sys_io_submit' [-Werror=missing-prototypes]
Add declarations to the syscall macros to avoid all of these, plus
one for the compat syscall entry.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20230516160642.523862-4-arnd@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/compat.h')
| -rw-r--r-- | arch/arm64/include/asm/compat.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h index 74575c3d6987..ae904a1ad529 100644 --- a/arch/arm64/include/asm/compat.h +++ b/arch/arm64/include/asm/compat.h @@ -96,6 +96,8 @@ static inline int is_compat_thread(struct thread_info *thread) return test_ti_thread_flag(thread, TIF_32BIT); } +long compat_arm_syscall(struct pt_regs *regs, int scno); + #else /* !CONFIG_COMPAT */ static inline int is_compat_thread(struct thread_info *thread) |