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Subject[PATCH 4.9 25/64] arm64: fix the flush_icache_range arguments in machine_kexec
Date
From: Christoph Hellwig <hch@lst.de>

Commit d51c214541c5154dda3037289ee895ea3ded5ebd upstream.

The second argument is the end "pointer", not the length.

Fixes: d28f6df1305a ("arm64/kexec: Add core kexec support")
Cc: <stable@vger.kernel.org> # 4.8.x-
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/kernel/machine_kexec.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index bc96c8a7fc79..3e4b778f16a5 100644
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -177,7 +177,8 @@ void machine_kexec(struct kimage *kimage)
/* Flush the reboot_code_buffer in preparation for its execution. */
__flush_dcache_area(reboot_code_buffer, arm64_relocate_new_kernel_size);
flush_icache_range((uintptr_t)reboot_code_buffer,
- arm64_relocate_new_kernel_size);
+ (uintptr_t)reboot_code_buffer +
+ arm64_relocate_new_kernel_size);

/* Flush the kimage list and its buffers. */
kexec_list_flush(kimage);
--
2.25.1


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