[PATCH 3.10 ~ 3.14] efi: fix the efi 32bit boot failed problem

From: fupan.li
Date: Tue Jul 28 2015 - 06:23:43 EST


From: fli <fupan.li@xxxxxxxxxxxxx>

The commit 35d5134b7d5a55e269c953096224248b9f6f72c2
Author: Matt Fleming <matt@xxxxxxxxxxxxxxxxx>
Date: Tue Apr 8 13:14:00 2014 +0100

x86/efi: Correct EFI boot stub use of code32_start

imported a bug, which should use the label's address instead
of the value stored in the label's address to caculate the
code32_start address.

Signed-off-by: fli <fupan.li@xxxxxxxxxxxxx>
---
arch/x86/boot/compressed/head_32.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index abb988a..3b28eff 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -54,7 +54,7 @@ ENTRY(efi_pe_entry)
call reloc
reloc:
popl %ecx
- subl reloc, %ecx
+ subl $reloc, %ecx
movl %ecx, BP_code32_start(%eax)

sub $0x4, %esp
--
1.9.1

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