linux-kernel - [PATCH 4.14 30/59] arm64: fix the flush_icache_range arguments in machine

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Date:   Tue, 26 May 2020 20:53:15 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Christoph Hellwig <hch@....de>,
        Catalin Marinas <catalin.marinas@....com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 30/59] arm64: fix the flush_icache_range arguments in machine_kexec

From: Christoph Hellwig <hch@....de>

Commit d51c214541c5154dda3037289ee895ea3ded5ebd upstream.

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

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

--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -184,7 +184,8 @@ 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);