diff options
| author | Breno Leitao <leitao@debian.org> | 2025-07-07 09:01:04 -0700 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2025-07-08 13:41:08 +0100 |
| commit | c4a5699d5cefd9d6a6a1d326297d5de6e8e0adde (patch) | |
| tree | 88a91a3ce085f2f470cceaa9959ffcdc5a57bdc7 | |
| parent | 0909c719c17b7a3e88dd1ee231b4a136c946c39e (diff) | |
arm64: remove CONFIG_VMAP_STACK conditionals from irq stack setup
With VMAP_STACK always enabled on arm64, drop the CONFIG_VMAP_STACK
checks and legacy irq stack allocation from arch/arm64/kernel/irq.c. The
code now unconditionally uses the VMAP_STACK path for irq stack
initialization, simplifying the logic.
Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20250707-arm64_vmap-v1-4-8de98ca0f91c@debian.org
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/kernel/irq.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c index 85087e2df564..c0065a1d77cf 100644 --- a/arch/arm64/kernel/irq.c +++ b/arch/arm64/kernel/irq.c @@ -51,7 +51,6 @@ static void init_irq_scs(void) scs_alloc(early_cpu_to_node(cpu)); } -#ifdef CONFIG_VMAP_STACK static void __init init_irq_stacks(void) { int cpu; @@ -62,18 +61,6 @@ static void __init init_irq_stacks(void) per_cpu(irq_stack_ptr, cpu) = p; } } -#else -/* irq stack only needs to be 16 byte aligned - not IRQ_STACK_SIZE aligned. */ -DEFINE_PER_CPU_ALIGNED(unsigned long [IRQ_STACK_SIZE/sizeof(long)], irq_stack); - -static void init_irq_stacks(void) -{ - int cpu; - - for_each_possible_cpu(cpu) - per_cpu(irq_stack_ptr, cpu) = per_cpu(irq_stack, cpu); -} -#endif #ifndef CONFIG_PREEMPT_RT static void ____do_softirq(struct pt_regs *regs) |