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    Subject[PATCH 5.10 496/593] s390/irq: select HAVE_IRQ_EXIT_ON_IRQ_STACK
    Date
    From: Heiko Carstens <hca@linux.ibm.com>

    [ Upstream commit 9ceed9988a8e6a1656ed2bdaa30501cf0f3dd925 ]

    irq_exit() is always called on async stack. Therefore select
    HAVE_IRQ_EXIT_ON_IRQ_STACK and get a tiny optimization in
    invoke_softirq().

    Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/s390/Kconfig | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
    index 4a2a12be04c9..dc5c3e6fd200 100644
    --- a/arch/s390/Kconfig
    +++ b/arch/s390/Kconfig
    @@ -154,6 +154,7 @@ config S390
    select HAVE_FUTEX_CMPXCHG if FUTEX
    select HAVE_GCC_PLUGINS
    select HAVE_GENERIC_VDSO
    + select HAVE_IRQ_EXIT_ON_IRQ_STACK
    select HAVE_KERNEL_BZIP2
    select HAVE_KERNEL_GZIP
    select HAVE_KERNEL_LZ4
    --
    2.30.2


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