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x86/boot: Save several bytes in decompressor
author
Cao jin
<caoj.fnst@cn.fujitsu.com>
Wed, 23 Jan 2019 10:00:14 +0000
(18:00 +0800)
committer
Thomas Gleixner
<tglx@linutronix.de>
Tue, 29 Jan 2019 21:09:12 +0000
(22:09 +0100)
gdt64 represents the content of GDTR under x86-64, which actually needs
10 bytes only, ".long" & ".word" is superfluous.
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: <bp@alien8.de>
Cc: <hpa@zytor.com>
Link:
https://lkml.kernel.org/r/20190123100014.23721-1-caoj.fnst@cn.fujitsu.com
arch/x86/boot/compressed/head_64.S
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diff --git
a/arch/x86/boot/compressed/head_64.S
b/arch/x86/boot/compressed/head_64.S
index 64037895b0859fdb25b8b104a2e5ed5d028baf45..b27b338d2f6d7f3c015f861b91940e9f0b26d0dd 100644
(file)
--- a/
arch/x86/boot/compressed/head_64.S
+++ b/
arch/x86/boot/compressed/head_64.S
@@
-645,8
+645,6
@@
no_longmode:
.data
gdt64:
.word gdt_end - gdt
- .long 0
- .word 0
.quad 0
gdt:
.word gdt_end - gdt