diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index c04f53f43af1..c792c2afd849 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1051,12 +1051,6 @@ static void init_amd(struct cpuinfo_x86 *c)
 
 	early_init_amd(c);
 
-	/*
-	 * Bit 31 in normal CPUID used for nonstandard 3DNow ID;
-	 * 3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway
-	 */
-	clear_cpu_cap(c, 0*32+31);
-
 	if (c->x86 >= 0x10)
 		set_cpu_cap(c, X86_FEATURE_REP_GOOD);
 
diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c
index a3b55db35c96..c8398940b975 100644
--- a/arch/x86/kernel/cpu/centaur.c
+++ b/arch/x86/kernel/cpu/centaur.c
@@ -119,12 +119,6 @@ static void init_centaur(struct cpuinfo_x86 *c)
 	u32  fcr_clr = 0;
 	u32  lo, hi, newlo;
 	u32  aa, bb, cc, dd;
-
-	/*
-	 * Bit 31 in normal CPUID used for nonstandard 3DNow ID;
-	 * 3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway
-	 */
-	clear_cpu_cap(c, 0*32+31);
 #endif
 	early_init_centaur(c);
 	init_intel_cacheinfo(c);
diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c
index dfec2c61e354..8f22085c4dd2 100644
--- a/arch/x86/kernel/cpu/cyrix.c
+++ b/arch/x86/kernel/cpu/cyrix.c
@@ -195,12 +195,6 @@ static void init_cyrix(struct cpuinfo_x86 *c)
 	char *buf = c->x86_model_id;
 	const char *p = NULL;
 
-	/*
-	 * Bit 31 in normal CPUID used for nonstandard 3DNow ID;
-	 * 3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway
-	 */
-	clear_cpu_cap(c, 0*32+31);
-
 	/* Cyrix used bit 24 in extended (AMD) CPUID for Cyrix MMX extensions */
 	if (test_cpu_cap(c, 1*32+24)) {
 		clear_cpu_cap(c, 1*32+24);
diff --git a/arch/x86/kernel/cpu/hygon.c b/arch/x86/kernel/cpu/hygon.c
index 1fda6c3a2b65..7f95a74e4c65 100644
--- a/arch/x86/kernel/cpu/hygon.c
+++ b/arch/x86/kernel/cpu/hygon.c
@@ -174,12 +174,6 @@ static void init_hygon(struct cpuinfo_x86 *c)
 
 	early_init_hygon(c);
 
-	/*
-	 * Bit 31 in normal CPUID used for nonstandard 3DNow ID;
-	 * 3DNow is IDd by bit 31 in extended CPUID (1*32+31) anyway
-	 */
-	clear_cpu_cap(c, 0*32+31);
-
 	set_cpu_cap(c, X86_FEATURE_REP_GOOD);
 
 	/*