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| author | Arnd Bergmann <arnd@arndb.de> | 2022-03-16 19:38:18 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2022-03-18 13:48:28 +0000 |
| commit | 7f34b43e07cb512b28543fdcb9f35d1fbfda9ebc (patch) | |
| tree | 1e27ceb083294438b13d50cf0ce0a73232a484f6 /arch/arm64 | |
| parent | 09688c0166e76ce2fb85e86b9d99be8b0084cdf9 (diff) | |
| download | linux-7f34b43e07cb512b28543fdcb9f35d1fbfda9ebc.tar.bz2 | |
arm64: fix clang warning about TRAMP_VALIAS
The newly introduced TRAMP_VALIAS definition causes a build warning
with clang-14:
arch/arm64/include/asm/vectors.h:66:31: error: arithmetic on a null pointer treated as a cast from integer to pointer is a GNU extension [-Werror,-Wnull-pointer-arithmetic]
return (char *)TRAMP_VALIAS + SZ_2K * slot;
Change the addition to something clang does not complain about.
Fixes: bd09128d16fa ("arm64: Add percpu vectors for EL1")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20220316183833.1563139-1-arnd@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/vectors.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h index f64613a96d53..bc9a2145f419 100644 --- a/arch/arm64/include/asm/vectors.h +++ b/arch/arm64/include/asm/vectors.h @@ -56,14 +56,14 @@ enum arm64_bp_harden_el1_vectors { DECLARE_PER_CPU_READ_MOSTLY(const char *, this_cpu_vector); #ifndef CONFIG_UNMAP_KERNEL_AT_EL0 -#define TRAMP_VALIAS 0 +#define TRAMP_VALIAS 0ul #endif static inline const char * arm64_get_bp_hardening_vector(enum arm64_bp_harden_el1_vectors slot) { if (arm64_kernel_unmapped_at_el0()) - return (char *)TRAMP_VALIAS + SZ_2K * slot; + return (char *)(TRAMP_VALIAS + SZ_2K * slot); WARN_ON_ONCE(slot == EL1_VECTOR_KPTI); |