1 files changed, 23 insertions, 22 deletions

diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index 5c481f6205bf..8100a29c854f 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -68,16 +68,16 @@ static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr)
         /* returns the bit offset of the performance counter register */
         switch (boot_cpu_data.x86_vendor) {
         case X86_VENDOR_AMD:
-                return (msr - MSR_K7_PERFCTR0);
+                return msr - MSR_K7_PERFCTR0;
         case X86_VENDOR_INTEL:
                 if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON))
-                        return (msr - MSR_ARCH_PERFMON_PERFCTR0);
+                        return msr - MSR_ARCH_PERFMON_PERFCTR0;
 
                 switch (boot_cpu_data.x86) {
                 case 6:
-                        return (msr - MSR_P6_PERFCTR0);
+                        return msr - MSR_P6_PERFCTR0;
                 case 15:
-                        return (msr - MSR_P4_BPU_PERFCTR0);
+                        return msr - MSR_P4_BPU_PERFCTR0;
                 }
         }
         return 0;
@@ -92,16 +92,16 @@ static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr)
         /* returns the bit offset of the event selection register */
         switch (boot_cpu_data.x86_vendor) {
         case X86_VENDOR_AMD:
-                return (msr - MSR_K7_EVNTSEL0);
+                return msr - MSR_K7_EVNTSEL0;
         case X86_VENDOR_INTEL:
                 if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON))
-                        return (msr - MSR_ARCH_PERFMON_EVENTSEL0);
+                        return msr - MSR_ARCH_PERFMON_EVENTSEL0;
 
                 switch (boot_cpu_data.x86) {
                 case 6:
-                        return (msr - MSR_P6_EVNTSEL0);
+                        return msr - MSR_P6_EVNTSEL0;
                 case 15:
-                        return (msr - MSR_P4_BSU_ESCR0);
+                        return msr - MSR_P4_BSU_ESCR0;
                 }
         }
         return 0;
@@ -113,7 +113,7 @@ int avail_to_resrv_perfctr_nmi_bit(unsigned int counter)
 {
         BUG_ON(counter > NMI_MAX_COUNTER_BITS);
 
-        return (!test_bit(counter, perfctr_nmi_owner));
+        return !test_bit(counter, perfctr_nmi_owner);
 }
 
 /* checks the an msr for availability */
@@ -124,7 +124,7 @@ int avail_to_resrv_perfctr_nmi(unsigned int msr)
         counter = nmi_perfctr_msr_to_bit(msr);
         BUG_ON(counter > NMI_MAX_COUNTER_BITS);
 
-        return (!test_bit(counter, perfctr_nmi_owner));
+        return !test_bit(counter, perfctr_nmi_owner);
 }
 EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit);
 
@@ -237,7 +237,7 @@ static unsigned int adjust_for_32bit_ctr(unsigned int hz)
          */
         counter_val = (u64)cpu_khz * 1000;
         do_div(counter_val, retval);
-        if (counter_val > 0x7fffffffULL) {
+        if (counter_val > 0x7fffffffULL) {
                 u64 count = (u64)cpu_khz * 1000;
                 do_div(count, 0x7fffffffUL);
                 retval = count + 1;
@@ -251,7 +251,7 @@ static void write_watchdog_counter(unsigned int perfctr_msr,
         u64 count = (u64)cpu_khz * 1000;
 
         do_div(count, nmi_hz);
-        if(descr)
+        if (descr)
                 pr_debug("setting %s to -0x%08Lx\n", descr, count);
         wrmsrl(perfctr_msr, 0 - count);
 }
@@ -262,7 +262,7 @@ static void write_watchdog_counter32(unsigned int perfctr_msr,
         u64 count = (u64)cpu_khz * 1000;
 
         do_div(count, nmi_hz);
-        if(descr)
+        if (descr)
                 pr_debug("setting %s to -0x%08Lx\n", descr, count);
         wrmsr(perfctr_msr, (u32)(-count), 0);
 }
@@ -296,7 +296,7 @@ static int setup_k7_watchdog(unsigned nmi_hz)
 
         /* setup the timer */
         wrmsr(evntsel_msr, evntsel, 0);
-        write_watchdog_counter(perfctr_msr, "K7_PERFCTR0",nmi_hz);
+        write_watchdog_counter(perfctr_msr, "K7_PERFCTR0", nmi_hz);
 
         /* initialize the wd struct before enabling */
         wd->perfctr_msr = perfctr_msr;
@@ -387,7 +387,7 @@ static int setup_p6_watchdog(unsigned nmi_hz)
         /* setup the timer */
         wrmsr(evntsel_msr, evntsel, 0);
         nmi_hz = adjust_for_32bit_ctr(nmi_hz);
-        write_watchdog_counter32(perfctr_msr, "P6_PERFCTR0",nmi_hz);
+        write_watchdog_counter32(perfctr_msr, "P6_PERFCTR0", nmi_hz);
 
         /* initialize the wd struct before enabling */
         wd->perfctr_msr = perfctr_msr;
@@ -415,7 +415,7 @@ static void __kprobes p6_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
         apic_write(APIC_LVTPC, APIC_DM_NMI);
 
         /* P6/ARCH_PERFMON has 32 bit counter write */
-        write_watchdog_counter32(wd->perfctr_msr, NULL,nmi_hz);
+        write_watchdog_counter32(wd->perfctr_msr, NULL, nmi_hz);
 }
 
 static const struct wd_ops p6_wd_ops = {
@@ -490,9 +490,9 @@ static int setup_p4_watchdog(unsigned nmi_hz)
         if (smp_num_siblings == 2) {
                 unsigned int ebx, apicid;
 
-                ebx = cpuid_ebx(1);
-                apicid = (ebx >> 24) & 0xff;
-                ht_num = apicid & 1;
+                ebx = cpuid_ebx(1);
+                apicid = (ebx >> 24) & 0xff;
+                ht_num = apicid & 1;
         } else
 #endif
                 ht_num = 0;
@@ -544,7 +544,7 @@ static int setup_p4_watchdog(unsigned nmi_hz)
         }
 
         evntsel = P4_ESCR_EVENT_SELECT(0x3F)
-                | P4_ESCR_OS
+                | P4_ESCR_OS
                 | P4_ESCR_USR;
 
         cccr_val |= P4_CCCR_THRESHOLD(15)
@@ -612,7 +612,7 @@ static void __kprobes p4_rearm(struct nmi_watchdog_ctlblk *wd, unsigned nmi_hz)
 {
         unsigned dummy;
         /*
-         * P4 quirks:
+         * P4 quirks:
          * - An overflown perfctr will assert its interrupt
          *   until the OVF flag in its CCCR is cleared.
          * - LVTPC is masked on interrupt and must be
@@ -662,7 +662,8 @@ static int setup_intel_arch_watchdog(unsigned nmi_hz)
          * NOTE: Corresponding bit = 0 in ebx indicates event present.
          */
         cpuid(10, &(eax.full), &ebx, &unused, &unused);
-        if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) ||
+        if ((eax.split.mask_length <
+                        (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) ||
             (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT))
                 return 0;