X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Fx86%2Fvdso%2Fvdso32-setup.c;h=0bce5429a51546de1fab7f0acd29e921d38a9870;hp=4dceeb1fc5e0f229305c983d39c8cf6497b5a409;hb=82638844d9a8581bbf33201cc209a14876eca167;hpb=c92758ceda477b1333fde35327cfa867dcc47bd1

diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index 4dceeb1fc5e0..0bce5429a515 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -162,7 +162,7 @@ static __init void relocate_vdso(Elf32_Ehdr *ehdr)
 	Elf32_Shdr *shdr;
 	int i;
 
-	BUG_ON(memcmp(ehdr->e_ident, ELFMAG, 4) != 0 ||
+	BUG_ON(memcmp(ehdr->e_ident, ELFMAG, SELFMAG) != 0 ||
 	       !elf_check_arch_ia32(ehdr) ||
 	       ehdr->e_type != ET_DYN);
 
@@ -203,20 +203,11 @@ static struct page *vdso32_pages[1];
 
 #ifdef CONFIG_X86_64
 
-static int use_sysenter __read_mostly = -1;
-
-#define	vdso32_sysenter()	(use_sysenter > 0)
+#define	vdso32_sysenter()	(boot_cpu_has(X86_FEATURE_SYSENTER32))
 
 /* May not be __init: called during resume */
 void syscall32_cpu_init(void)
 {
-	if (use_sysenter < 0) {
-		if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
-			use_sysenter = 1;
-		if (boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR)
-			use_sysenter = 1;
-	}
-
 	/* Load these always in case some future AMD CPU supports
 	   SYSENTER from compat mode too. */
 	checking_wrmsrl(MSR_IA32_SYSENTER_CS, (u64)__KERNEL_CS);