From: Mark Rutland Date: Tue, 13 Aug 2019 14:16:39 +0000 (+0100) Subject: arm64: constify sys64_hook instances X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=37143dcc44f8f3348d47616598137b1580468973;p=linux.git arm64: constify sys64_hook instances All instances of struct sys64_hook contain compile-time constant data, and are never inentionally modified, so let's make them all const. Signed-off-by: Mark Rutland Cc: Catalin Marinas Cc: Will Deacon Signed-off-by: Will Deacon --- diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 42c8422cdf4ac..a5d7ce4297b03 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -511,7 +511,7 @@ struct sys64_hook { void (*handler)(unsigned int esr, struct pt_regs *regs); }; -static struct sys64_hook sys64_hooks[] = { +static const struct sys64_hook sys64_hooks[] = { { .esr_mask = ESR_ELx_SYS64_ISS_EL0_CACHE_OP_MASK, .esr_val = ESR_ELx_SYS64_ISS_EL0_CACHE_OP_VAL, @@ -636,7 +636,7 @@ static void compat_cntfrq_read_handler(unsigned int esr, struct pt_regs *regs) arm64_compat_skip_faulting_instruction(regs, 4); } -static struct sys64_hook cp15_32_hooks[] = { +static const struct sys64_hook cp15_32_hooks[] = { { .esr_mask = ESR_ELx_CP15_32_ISS_SYS_MASK, .esr_val = ESR_ELx_CP15_32_ISS_SYS_CNTFRQ, @@ -656,7 +656,7 @@ static void compat_cntvct_read_handler(unsigned int esr, struct pt_regs *regs) arm64_compat_skip_faulting_instruction(regs, 4); } -static struct sys64_hook cp15_64_hooks[] = { +static const struct sys64_hook cp15_64_hooks[] = { { .esr_mask = ESR_ELx_CP15_64_ISS_SYS_MASK, .esr_val = ESR_ELx_CP15_64_ISS_SYS_CNTVCT, @@ -667,7 +667,7 @@ static struct sys64_hook cp15_64_hooks[] = { asmlinkage void __exception do_cp15instr(unsigned int esr, struct pt_regs *regs) { - struct sys64_hook *hook, *hook_base; + const struct sys64_hook *hook, *hook_base; if (!cp15_cond_valid(esr, regs)) { /* @@ -707,7 +707,7 @@ asmlinkage void __exception do_cp15instr(unsigned int esr, struct pt_regs *regs) asmlinkage void __exception do_sysinstr(unsigned int esr, struct pt_regs *regs) { - struct sys64_hook *hook; + const struct sys64_hook *hook; for (hook = sys64_hooks; hook->handler; hook++) if ((hook->esr_mask & esr) == hook->esr_val) {