diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2025-10-31 10:37:09 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-11-04 08:27:20 +0100 |
| commit | 2db48d8bf87d3cb9d968e73623efc1c5a02523e7 (patch) | |
| tree | 6d441942517e038c080d3baf423d1b5a8df093fb | |
| parent | 43cc54d8dbe6b761bd2672bf9bb46e5290e90277 (diff) | |
arm64: uaccess: Use unsafe wrappers for ASM GOTO
Clang propagates a provided label, which is outside of a cleanup scope to
ASM GOTO despite the fact that __raw_get_mem() has a local label for that
purpose:
"error: cannot jump from this asm goto statement to one of its possible targets"
Using the unsafe wrapper with the extra local label indirection cures that.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/arm64/include/asm/uaccess.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index 1aa4ecb73429..6490930deef8 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -422,9 +422,9 @@ static __must_check __always_inline bool user_access_begin(const void __user *pt } #define user_access_begin(a,b) user_access_begin(a,b) #define user_access_end() uaccess_ttbr0_disable() -#define unsafe_put_user(x, ptr, label) \ +#define arch_unsafe_put_user(x, ptr, label) \ __raw_put_mem("sttr", x, uaccess_mask_ptr(ptr), label, U) -#define unsafe_get_user(x, ptr, label) \ +#define arch_unsafe_get_user(x, ptr, label) \ __raw_get_mem("ldtr", x, uaccess_mask_ptr(ptr), label, U) /* |