19f47c634e
Impact: cleanup Arches that have their own irq_regs definition are expected to define ARCH_HAS_OWN_IRQ_REGS or else a generic (unused) set will also be defined in lib/irq_regs.c Sparse noticed the unused generic one had no prototype: lib/irq_regs.c:15:1: warning: symbol 'per_cpu____irq_regs' was not declared. Should it be static? Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
31 lines
650 B
C
31 lines
650 B
C
/*
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* Per-cpu current frame pointer - the location of the last exception frame on
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* the stack, stored in the per-cpu area.
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*
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* Jeremy Fitzhardinge <jeremy@goop.org>
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*/
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#ifndef _ASM_X86_IRQ_REGS_32_H
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#define _ASM_X86_IRQ_REGS_32_H
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#include <asm/percpu.h>
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#define ARCH_HAS_OWN_IRQ_REGS
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DECLARE_PER_CPU(struct pt_regs *, irq_regs);
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static inline struct pt_regs *get_irq_regs(void)
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{
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return x86_read_percpu(irq_regs);
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}
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static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs)
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{
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struct pt_regs *old_regs;
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old_regs = get_irq_regs();
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x86_write_percpu(irq_regs, new_regs);
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return old_regs;
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}
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#endif /* _ASM_X86_IRQ_REGS_32_H */
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