mirror of
https://github.com/torvalds/linux.git
synced 2024-12-27 05:11:48 +00:00
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>
32 lines
650 B
C
32 lines
650 B
C
/*
|
|
* Per-cpu current frame pointer - the location of the last exception frame on
|
|
* the stack, stored in the per-cpu area.
|
|
*
|
|
* Jeremy Fitzhardinge <jeremy@goop.org>
|
|
*/
|
|
#ifndef _ASM_X86_IRQ_REGS_32_H
|
|
#define _ASM_X86_IRQ_REGS_32_H
|
|
|
|
#include <asm/percpu.h>
|
|
|
|
#define ARCH_HAS_OWN_IRQ_REGS
|
|
|
|
DECLARE_PER_CPU(struct pt_regs *, irq_regs);
|
|
|
|
static inline struct pt_regs *get_irq_regs(void)
|
|
{
|
|
return x86_read_percpu(irq_regs);
|
|
}
|
|
|
|
static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs)
|
|
{
|
|
struct pt_regs *old_regs;
|
|
|
|
old_regs = get_irq_regs();
|
|
x86_write_percpu(irq_regs, new_regs);
|
|
|
|
return old_regs;
|
|
}
|
|
|
|
#endif /* _ASM_X86_IRQ_REGS_32_H */
|