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Song Shuai bb80a79112 riscv: kexec: Avoid deadlock in kexec crash path

[ Upstream commit c562ba719df570c986caf0941fea2449150bcbc4 ]

If the kexec crash code is called in the interrupt context, the
machine_kexec_mask_interrupts() function will trigger a deadlock while
trying to acquire the irqdesc spinlock and then deactivate irqchip in
irq_set_irqchip_state() function.

Unlike arm64, riscv only requires irq_eoi handler to complete EOI and
keeping irq_set_irqchip_state() will only leave this possible deadlock
without any use. So we simply remove it.

Link: https://lore.kernel.org/linux-riscv/20231208111015.173237-1-songshuaishuai@tinylab.org/
Fixes: b17d19a5314a ("riscv: kexec: Fixup irq controller broken in kexec crash path")
Signed-off-by: Song Shuai <songshuaishuai@tinylab.org>
Reviewed-by: Ryo Takakura <takakura@valinux.co.jp>
Link: https://lore.kernel.org/r/20240626023316.539971-1-songshuaishuai@tinylab.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-07-18 13:07:31 +02:00

alpha

alpha: remove __init annotation from exported page_is_ram()

2023-08-16 18:22:03 +02:00

arc

ARC: [plat-hsdk]: Remove misplaced interrupt-cells property

2024-05-02 16:24:44 +02:00

arm

ARM: dts: rockchip: rk3066a: add #sound-dai-cells to hdmi node

2024-07-05 09:14:52 +02:00

arm64

arm64: dts: rockchip: Add sound-dai-cells for RK3368