linux/include/asm-generic/softirq_stack.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __ASM_GENERIC_SOFTIRQ_STACK_H
#define __ASM_GENERIC_SOFTIRQ_STACK_H

#ifdef CONFIG_SOFTIRQ_ON_OWN_STACK
void do_softirq_own_stack(void);
#else
static inline void do_softirq_own_stack(void)
{
	__do_softirq();
}
#endif

#endif
softirq: Move do_softirq_own_stack() to generic asm header 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 2021-02-09 23:40:53 +00:00			`/* SPDX-License-Identifier: GPL-2.0-or-later */`
			`#ifndef __ASM_GENERIC_SOFTIRQ_STACK_H`
			`#define __ASM_GENERIC_SOFTIRQ_STACK_H`

asm-generic: Conditionally enable do_softirq_own_stack() via Kconfig. Remove the CONFIG_PREEMPT_RT symbol from the ifdef around do_softirq_own_stack() and move it to Kconfig instead. Enable softirq stacks based on SOFTIRQ_ON_OWN_STACK which depends on HAVE_SOFTIRQ_ON_OWN_STACK and its default value is set to !PREEMPT_RT. This ensures that softirq stacks are not used on PREEMPT_RT and avoids a 'select' statement on an option which has a 'depends' statement. Link: https://lore.kernel.org/YvN5E%2FPrHfUhggr7@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> 2022-08-25 08:25:05 +00:00			`#ifdef CONFIG_SOFTIRQ_ON_OWN_STACK`
softirq: Move do_softirq_own_stack() to generic asm header 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 2021-02-09 23:40:53 +00:00			`void do_softirq_own_stack(void);`
			`#else`
			`static inline void do_softirq_own_stack(void)`
			`{`
			`__do_softirq();`
			`}`
			`#endif`

			`#endif`