linux/arch/s390/include/asm/softirq_stack.h
Sebastian Andrzej Siewior 8cbb2b50ee 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>
2022-09-05 17:20:55 +02:00

15 lines
370 B
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __ASM_S390_SOFTIRQ_STACK_H
#define __ASM_S390_SOFTIRQ_STACK_H
#include <asm/lowcore.h>
#include <asm/stacktrace.h>
#ifdef CONFIG_SOFTIRQ_ON_OWN_STACK
static inline void do_softirq_own_stack(void)
{
call_on_stack(0, S390_lowcore.async_stack, void, __do_softirq);
}
#endif
#endif /* __ASM_S390_SOFTIRQ_STACK_H */