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authorBorislav Petkov <bp@alien8.de>2013-03-04 21:16:17 +0100
committerH. Peter Anvin <hpa@linux.intel.com>2013-04-02 16:03:29 -0700
commit8e3c2a8cf647e2f3a1e9d38009b0d1c02145822f (patch)
treebd5991f51985964c167391225a707b6c515d9656
parent2dead15fb8f6522b96c913603b5ad0b5c7d01f49 (diff)
x86: Drop KERNEL_IMAGE_START
We have KERNEL_IMAGE_START and __START_KERNEL_map which both contain the start of the kernel text mapping's virtual address. Remove the prior one which has been replicated a lot less times around the tree. No functionality change. Signed-off-by: Borislav Petkov <bp@alien8.de> Link: http://lkml.kernel.org/r/1362428180-8865-3-git-send-email-bp@alien8.de Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
-rw-r--r--arch/x86/include/asm/page_64_types.h1
-rw-r--r--arch/x86/kernel/head64.c6
2 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index 8b491e66eaa..6c896fbe21d 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -48,6 +48,5 @@
* arch/x86/kernel/head_64.S), and it is mapped here:
*/
#define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
-#define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL)
#endif /* _ASM_X86_PAGE_64_DEFS_H */
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index c5e403f6d86..101ac1a9263 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -144,10 +144,10 @@ void __init x86_64_start_kernel(char * real_mode_data)
* Build-time sanity checks on the kernel image and module
* area mappings. (these are purely build-time and produce no code)
*/
- BUILD_BUG_ON(MODULES_VADDR < KERNEL_IMAGE_START);
- BUILD_BUG_ON(MODULES_VADDR-KERNEL_IMAGE_START < KERNEL_IMAGE_SIZE);
+ BUILD_BUG_ON(MODULES_VADDR < __START_KERNEL_map);
+ BUILD_BUG_ON(MODULES_VADDR - __START_KERNEL_map < KERNEL_IMAGE_SIZE);
BUILD_BUG_ON(MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE);
- BUILD_BUG_ON((KERNEL_IMAGE_START & ~PMD_MASK) != 0);
+ BUILD_BUG_ON((__START_KERNEL_map & ~PMD_MASK) != 0);
BUILD_BUG_ON((MODULES_VADDR & ~PMD_MASK) != 0);
BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==