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softirq: Move do_softirq_own_stack() to generic asm header

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To avoid include recursion hell move the do_softirq_own_stack() related
content into a generic asm header and include it from all places in arch/
which need the prototype.

This allows architectures to provide an inline implementation of
do_softirq_own_stack() without introducing a lot of #ifdeffery all over the
place.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210210002513.289960691@linutronix.de
This commit is contained in:
Thomas Gleixner
2021-02-10 00:40:53 +01:00
parent cd1a41ceba
commit db1cc7aede
11 changed files with 24 additions and 9 deletions
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14
include/asm-generic/softirq_stack.h Normal file
View File

@@ -0,0 +1,14 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __ASM_GENERIC_SOFTIRQ_STACK_H
#define __ASM_GENERIC_SOFTIRQ_STACK_H
#ifdef CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK
void do_softirq_own_stack(void);
#else
static inline void do_softirq_own_stack(void)
{
__do_softirq();
}
#endif
#endif