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Subject[PATCH v3 07/17] x86/compressed: efi: merge multiple definitions of image_offset into one
Date
There is no need for head_32.S and head_64.S both declaring a copy of
the globale 'image_offset' variable, so drop those and make the extern C
declaration the definition.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
arch/x86/boot/compressed/head_32.S | 4 ----
arch/x86/boot/compressed/head_64.S | 4 ----
drivers/firmware/efi/libstub/x86-stub.c | 2 +-
3 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 3b354eb9516df416..6589ddd4cfaf2cb6 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -208,10 +208,6 @@ SYM_DATA_START_LOCAL(gdt)
.quad 0x00cf92000000ffff /* __KERNEL_DS */
SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)

-#ifdef CONFIG_EFI_STUB
-SYM_DATA(image_offset, .long 0)
-#endif
-
/*
* Stack and heap for uncompression
*/
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 987f0a3c284fad43..66ad3ab802ca9d0c 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -726,10 +726,6 @@ SYM_DATA_START(boot32_idt)
SYM_DATA_END_LABEL(boot32_idt, SYM_L_GLOBAL, boot32_idt_end)
#endif

-#ifdef CONFIG_EFI_STUB
-SYM_DATA(image_offset, .long 0)
-#endif
-
#ifdef CONFIG_AMD_MEM_ENCRYPT
__HEAD
.code32
diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c
index 33a7811e12c65642..cb5f0befee57d2ec 100644
--- a/drivers/firmware/efi/libstub/x86-stub.c
+++ b/drivers/firmware/efi/libstub/x86-stub.c
@@ -23,7 +23,7 @@

const efi_system_table_t *efi_system_table;
const efi_dxe_services_table_t *efi_dxe_table;
-extern u32 image_offset;
+u32 image_offset;
static efi_loaded_image_t *image = NULL;

static efi_status_t
--
2.35.1
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