arm64: fix the flush_icache_range arguments in machine_kexec

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>

diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index 8e9c924..a0b144c 100644 (file)
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -177,6 +177,7 @@ void machine_kexec(struct kimage *kimage)
         * the offline CPUs. Therefore, we must use the __* variant here.
         */
        __flush_icache_range((uintptr_t)reboot_code_buffer,
+                            (uintptr_t)reboot_code_buffer +
                             arm64_relocate_new_kernel_size);
 
        /* Flush the kimage list and its buffers. */