stable inclusion
from stable-v5.10.110
commit 20499ed3c0411768912ac7f24a29ad3981b0d80b
bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=20499ed3c0411768912ac7f24a29ad3981b0d80b

--------------------------------

commit 9d67412f upstream.

iop32x is one of the last platforms to use IRQ 0, and this has apparently
stopped working in a 2014 cleanup without anyone noticing. This interrupt
is used for the DMA engine, so most likely this has not actually worked
in the past 7 years, but it's also not essential for using this board.

I'm splitting out this change from my GENERIC_IRQ_MULTI_HANDLER
conversion so it can be backported if anyone cares.

Fixes: a71b092a ("ARM: Convert handle_IRQ to use __handle_domain_irq")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
[ardb: take +1 offset into account in mask/unmask and init as well]
Signed-off-by: NArd Biesheuvel <ardb@kernel.org>
Tested-by: NMarc Zyngier <maz@kernel.org>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com> # ARMv7M
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NYu Liao <liaoyu15@huawei.com>
Reviewed-by: NWei Li <liwei391@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>