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Date: Thu, 24 Nov 2016 22:05:50 +0100 From: Borislav Petkov <bp@...en8.de> To: X86 ML <x86@...nel.org> Cc: LKML <linux-kernel@...r.kernel.org> Subject: [PATCH] x86/head_64: Use defines for page size From: Borislav Petkov <bp@...e.de> ... instead of naked numbers like the rest of the asm does in this file. No code changed: # arch/x86/kernel/head_64.o: text data bss dec hex filename 1124 290864 4096 296084 48494 head_64.o.before 1124 290864 4096 296084 48494 head_64.o.after md5: 87086e202588939296f66e892414ffe2 head_64.o.before.asm 87086e202588939296f66e892414ffe2 head_64.o.after.asm Signed-off-by: Borislav Petkov <bp@...e.de> --- arch/x86/kernel/head_64.S | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index b07cd27e33a5..a15d381e6020 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -112,20 +112,20 @@ startup_64: movq %rdi, %rax shrq $PGDIR_SHIFT, %rax - leaq (4096 + _KERNPG_TABLE)(%rbx), %rdx + leaq (PAGE_SIZE + _KERNPG_TABLE)(%rbx), %rdx movq %rdx, 0(%rbx,%rax,8) movq %rdx, 8(%rbx,%rax,8) - addq $4096, %rdx + addq $PAGE_SIZE, %rdx movq %rdi, %rax shrq $PUD_SHIFT, %rax andl $(PTRS_PER_PUD-1), %eax - movq %rdx, 4096(%rbx,%rax,8) + movq %rdx, PAGE_SIZE(%rbx,%rax,8) incl %eax andl $(PTRS_PER_PUD-1), %eax - movq %rdx, 4096(%rbx,%rax,8) + movq %rdx, PAGE_SIZE(%rbx,%rax,8) - addq $8192, %rbx + addq $PAGE_SIZE * 2, %rbx movq %rdi, %rax shrq $PMD_SHIFT, %rdi addq $(__PAGE_KERNEL_LARGE_EXEC & ~_PAGE_GLOBAL), %rax -- 2.10.0
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