| Date | Sun, 14 Apr 2019 17:59:59 +0200 | From | Thomas Gleixner <> | Subject | [patch V3 23/32] x86/irq/32: Define IRQ_STACK_SIZE |
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On 32-bit IRQ_STACK_SIZE is the same as THREAD_SIZE.
To allow sharing struct irq_stack with 32-bit, define IRQ_STACK_SIZE for 32-bit and use of for struct irq_stack.
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/x86/include/asm/page_32_types.h | 2 ++ arch/x86/include/asm/processor.h | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-)
--- a/arch/x86/include/asm/page_32_types.h +++ b/arch/x86/include/asm/page_32_types.h @@ -22,6 +22,8 @@ #define THREAD_SIZE_ORDER 1 #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) +#define IRQ_STACK_SIZE THREAD_SIZE + #define N_EXCEPTION_STACKS 1 #ifdef CONFIG_X86_PAE --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -422,8 +422,8 @@ DECLARE_PER_CPU_ALIGNED(struct stack_can * per-CPU IRQ handling stacks */ struct irq_stack { - u32 stack[THREAD_SIZE/sizeof(u32)]; -} __aligned(THREAD_SIZE); + u32 stack[IRQ_STACK_SIZE / sizeof(u32)]; +} __aligned(IRQ_STACK_SIZE); DECLARE_PER_CPU(struct irq_stack *, hardirq_stack); DECLARE_PER_CPU(struct irq_stack *, softirq_stack);
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