x86, boot: correct the calculation of ZO_INIT_SIZE

Correct the calculation of ZO_INIT_SIZE (the amount of memory we need
during decompression).  One symbol (ZO_startup_32) was missing from
zoffset.h, and another (ZO_z_extract_offset) was misspelled.

[ Impact: build fix ]

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 75e0301fc69a..619d297aa2ba 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -95,7 +95,7 @@ targets += voffset.h
 $(obj)/voffset.h: vmlinux FORCE
         $(call if_changed,voffset)
 
-sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
+sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
 
 quiet_cmd_zoffset = ZOFFSET $@
       cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 68c3bfbaff24..1040f6e8010c 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -226,7 +226,7 @@ setup_data:		.quad 0			# 64-bit physical pointer to
 
 pref_address:           .quad LOAD_PHYSICAL_ADDR        # preferred load addr
 
-#define ZO_INIT_SIZE    (ZO__end - ZO_startup_32 + ZO_extract_offset)
+#define ZO_INIT_SIZE    (ZO__end - ZO_startup_32 + ZO_z_extract_offset)
 #define VO_INIT_SIZE    (VO__end - VO__text)
 #if ZO_INIT_SIZE > VO_INIT_SIZE
 #define INIT_SIZE ZO_INIT_SIZE