MIPS: kdump: Set correct value to kexec_indirection_page variable

Since there is not indirection page in crash type, so the vaule of the head
field of kimage structure is not equal to the address of indirection page but
IND_DONE. so we have to set kexec_indirection_page variable to the address of
the head field of image structure.

[ralf@linux-mips.org: Don't add pointless empty line, fix trailing
whitespace damage.]

Signed-off-by: Yang Wei <Wei.Yang@windriver.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7499/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/kernel/machine_kexec.c b/arch/mips/kernel/machine_kexec.c
index 992e18474da5da89f1ff4b878dbbc8e8db47e919..50980bf3983ef3654d4f24c1dbf95e4576d0c3a8 100644 (file)
--- a/arch/mips/kernel/machine_kexec.c
+++ b/arch/mips/kernel/machine_kexec.c
@@ -71,8 +71,12 @@ machine_kexec(struct kimage *image)
        kexec_start_address =
                (unsigned long) phys_to_virt(image->start);
 
-       kexec_indirection_page =
-               (unsigned long) phys_to_virt(image->head & PAGE_MASK);
+       if (image->type == KEXEC_TYPE_DEFAULT) {
+               kexec_indirection_page =
+                       (unsigned long) phys_to_virt(image->head & PAGE_MASK);
+       } else {
+               kexec_indirection_page = (unsigned long)&image->head;
+       }
 
        memcpy((void*)reboot_code_buffer, relocate_new_kernel,
               relocate_new_kernel_size);