x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping

x86_mask is a confusing name which is hard to associate with the
processor's stepping.

Additionally, correct an indent issue in lib/cpu.c.

Signed-off-by: Jia Zhang <qianyue.zj@alibaba-inc.com>
[ Updated it to more recent kernels. ]
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: tony.luck@intel.com
Link: http://lkml.kernel.org/r/1514771530-70829-1-git-send-email-qianyue.zj@alibaba-inc.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 9 insertions, 9 deletions

diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index ef796f14f7ae..d19e903214b4 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -146,7 +146,7 @@ static bool bad_spectre_microcode(struct cpuinfo_x86 *c)
 
 	for (i = 0; i < ARRAY_SIZE(spectre_bad_microcodes); i++) {
 		if (c->x86_model == spectre_bad_microcodes[i].model &&
-		    c->x86_mask == spectre_bad_microcodes[i].stepping)
+		    c->x86_stepping == spectre_bad_microcodes[i].stepping)
 			return (c->microcode <= spectre_bad_microcodes[i].microcode);
 	}
 	return false;
@@ -193,7 +193,7 @@ static void early_init_intel(struct cpuinfo_x86 *c)
 	 * need the microcode to have already been loaded... so if it is
 	 * not, recommend a BIOS update and disable large pages.
 	 */
-	if (c->x86 == 6 && c->x86_model == 0x1c && c->x86_mask <= 2 &&
+	if (c->x86 == 6 && c->x86_model == 0x1c && c->x86_stepping <= 2 &&
 	    c->microcode < 0x20e) {
 		pr_warn("Atom PSE erratum detected, BIOS microcode update recommended\n");
 		clear_cpu_cap(c, X86_FEATURE_PSE);
@@ -209,7 +209,7 @@ static void early_init_intel(struct cpuinfo_x86 *c)
 
 	/* CPUID workaround for 0F33/0F34 CPU */
 	if (c->x86 == 0xF && c->x86_model == 0x3
-	    && (c->x86_mask == 0x3 || c->x86_mask == 0x4))
+	    && (c->x86_stepping == 0x3 || c->x86_stepping == 0x4))
 		c->x86_phys_bits = 36;
 
 	/*
@@ -307,7 +307,7 @@ int ppro_with_ram_bug(void)
 	if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
 	    boot_cpu_data.x86 == 6 &&
 	    boot_cpu_data.x86_model == 1 &&
-	    boot_cpu_data.x86_mask < 8) {
+	    boot_cpu_data.x86_stepping < 8) {
 		pr_info("Pentium Pro with Errata#50 detected. Taking evasive action.\n");
 		return 1;
 	}
@@ -324,7 +324,7 @@ static void intel_smp_check(struct cpuinfo_x86 *c)
 	 * Mask B, Pentium, but not Pentium MMX
 	 */
 	if (c->x86 == 5 &&
-	    c->x86_mask >= 1 && c->x86_mask <= 4 &&
+	    c->x86_stepping >= 1 && c->x86_stepping <= 4 &&
 	    c->x86_model <= 3) {
 		/*
 		 * Remember we have B step Pentia with bugs
@@ -367,7 +367,7 @@ static void intel_workarounds(struct cpuinfo_x86 *c)
 	 * SEP CPUID bug: Pentium Pro reports SEP but doesn't have it until
 	 * model 3 mask 3
 	 */
-	if ((c->x86<<8 | c->x86_model<<4 | c->x86_mask) < 0x633)
+	if ((c->x86<<8 | c->x86_model<<4 | c->x86_stepping) < 0x633)
 		clear_cpu_cap(c, X86_FEATURE_SEP);
 
 	/*
@@ -385,7 +385,7 @@ static void intel_workarounds(struct cpuinfo_x86 *c)
 	 * P4 Xeon erratum 037 workaround.
 	 * Hardware prefetcher may cause stale data to be loaded into the cache.
 	 */
-	if ((c->x86 == 15) && (c->x86_model == 1) && (c->x86_mask == 1)) {
+	if ((c->x86 == 15) && (c->x86_model == 1) && (c->x86_stepping == 1)) {
 		if (msr_set_bit(MSR_IA32_MISC_ENABLE,
 				MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT) > 0) {
 			pr_info("CPU: C0 stepping P4 Xeon detected.\n");
@@ -400,7 +400,7 @@ static void intel_workarounds(struct cpuinfo_x86 *c)
 	 * Specification Update").
 	 */
 	if (boot_cpu_has(X86_FEATURE_APIC) && (c->x86<<8 | c->x86_model<<4) == 0x520 &&
-	    (c->x86_mask < 0x6 || c->x86_mask == 0xb))
+	    (c->x86_stepping < 0x6 || c->x86_stepping == 0xb))
 		set_cpu_bug(c, X86_BUG_11AP);
 
 
@@ -647,7 +647,7 @@ static void init_intel(struct cpuinfo_x86 *c)
 		case 6:
 			if (l2 == 128)
 				p = "Celeron (Mendocino)";
-			else if (c->x86_mask == 0 || c->x86_mask == 5)
+			else if (c->x86_stepping == 0 || c->x86_stepping == 5)
 				p = "Celeron-A";
 			break;