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Date:   Fri, 15 Sep 2023 09:37:46 -0000
From:   "tip-bot2 for Ard Biesheuvel" <tip-bot2@linutronix.de>
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Subject: [tip: x86/boot] x86/boot: Drop references to startup_64
Cc:     Ard Biesheuvel <ardb@kernel.org>, Ingo Molnar <mingo@kernel.org>,
        x86@kernel.org, linux-kernel@vger.kernel.org
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The following commit has been merged into the x86/boot branch of tip:

Commit-ID:     b618d31f112bea3d2daea19190d63e567f32a4db
Gitweb:        https://git.kernel.org/tip/b618d31f112bea3d2daea19190d63e567f32a4db
Author:        Ard Biesheuvel <ardb@kernel.org>
AuthorDate:    Tue, 12 Sep 2023 09:00:59 
Committer:     Ingo Molnar <mingo@kernel.org>
CommitterDate: Fri, 15 Sep 2023 11:18:42 +02:00

x86/boot: Drop references to startup_64

The x86 boot image generation tool assign a default value to startup_64
and subsequently parses the actual value from zoffset.h but it never
actually uses the value anywhere. So remove this code.

This change has no impact on the resulting bzImage binary.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230912090051.4014114-25-ardb@google.com
---
 arch/x86/boot/Makefile      | 2 +-
 arch/x86/boot/tools/build.c | 3 ---
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index f33e45e..0e98bc5 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -89,7 +89,7 @@ $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
 
 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
 
-sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|efi32_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p'
+sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|efi32_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p'
 
 quiet_cmd_zoffset = ZOFFSET $@
       cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
index efa4e9c..10b0207 100644
--- a/arch/x86/boot/tools/build.c
+++ b/arch/x86/boot/tools/build.c
@@ -60,7 +60,6 @@ static unsigned long efi64_stub_entry;
 static unsigned long efi_pe_entry;
 static unsigned long efi32_pe_entry;
 static unsigned long kernel_info;
-static unsigned long startup_64;
 static unsigned long _end;
 
 /*----------------------------------------------------------------------*/
@@ -264,7 +263,6 @@ static void efi_stub_defaults(void)
 	efi_pe_entry = 0x10;
 #else
 	efi_pe_entry = 0x210;
-	startup_64 = 0x200;
 #endif
 }
 
@@ -340,7 +338,6 @@ static void parse_zoffset(char *fname)
 		PARSE_ZOFS(p, efi_pe_entry);
 		PARSE_ZOFS(p, efi32_pe_entry);
 		PARSE_ZOFS(p, kernel_info);
-		PARSE_ZOFS(p, startup_64);
 		PARSE_ZOFS(p, _end);
 
 		p = strchr(p, '\n');