Commit 79b9c183 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

x86/irq: Use generic irq_regs implementation 



The only difference is the name of the per-CPU variable: irq_regs
vs. __irq_regs, but the accessor functions are identical.

Remove the pointless copy and use the generic variant.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Acked-by: default avatarAndy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20200521202118.704169051@linutronix.de
parent 74ebed31

arch/x86/include/asm/irq_regs.h

deleted100644 → 0
+0 −32
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 * 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_H

#define _ASM_X86_IRQ_REGS_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 __this_cpu_read(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();

	__this_cpu_write(irq_regs, new_regs);



	return old_regs;

}



#endif /* _ASM_X86_IRQ_REGS_32_H */

arch/x86/kernel/irq.c

+0 −3
Original line number Diff line number Diff line
@@ -26,9 +26,6 @@ 
DEFINE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);

EXPORT_PER_CPU_SYMBOL(irq_stat);



DEFINE_PER_CPU(struct pt_regs *, irq_regs);

EXPORT_PER_CPU_SYMBOL(irq_regs);



atomic_t irq_err_count;



/*