These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / kernel / time / clocksource.c

diff --git a/kernel/kernel/time/clocksource.c b/kernel/kernel/time/clocksource.c
index 15facb1..1347882 100644 (file)
--- a/kernel/kernel/time/clocksource.c
+++ b/kernel/kernel/time/clocksource.c
@@ -23,6 +23,8 @@
  *   o Allow clocksource drivers to be unregistered
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/device.h>
 #include <linux/clocksource.h>
 #include <linux/init.h>
@@ -215,11 +217,12 @@ static void clocksource_watchdog(unsigned long data)
                        continue;
 
                /* Check the deviation from the watchdog clocksource. */
-               if ((abs(cs_nsec - wd_nsec) > WATCHDOG_THRESHOLD)) {
-                       pr_warn("timekeeping watchdog: Marking clocksource '%s' as unstable, because the skew is too large:\n", cs->name);
-                       pr_warn("       '%s' wd_now: %llx wd_last: %llx mask: %llx\n",
+               if (abs(cs_nsec - wd_nsec) > WATCHDOG_THRESHOLD) {
+                       pr_warn("timekeeping watchdog: Marking clocksource '%s' as unstable because the skew is too large:\n",
+                               cs->name);
+                       pr_warn("                      '%s' wd_now: %llx wd_last: %llx mask: %llx\n",
                                watchdog->name, wdnow, wdlast, watchdog->mask);
-                       pr_warn("       '%s' cs_now: %llx cs_last: %llx mask: %llx\n",
+                       pr_warn("                      '%s' cs_now: %llx cs_last: %llx mask: %llx\n",
                                cs->name, csnow, cslast, cs->mask);
                        __clocksource_unstable(cs);
                        continue;
@@ -476,7 +479,7 @@ static u32 clocksource_max_adjustment(struct clocksource *cs)
  * return half the number of nanoseconds the hardware counter can technically
  * cover. This is done so that we can potentially detect problems caused by
  * delayed timers or bad hardware, which might result in time intervals that
- * are larger then what the math used can handle without overflows.
+ * are larger than what the math used can handle without overflows.
  */
 u64 clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask, u64 *max_cyc)
 {
@@ -567,9 +570,8 @@ static void __clocksource_select(bool skipcur)
                 */
                if (!(cs->flags & CLOCK_SOURCE_VALID_FOR_HRES) && oneshot) {
                        /* Override clocksource cannot be used. */
-                       printk(KERN_WARNING "Override clocksource %s is not "
-                              "HRT compatible. Cannot switch while in "
-                              "HRT/NOHZ mode\n", cs->name);
+                       pr_warn("Override clocksource %s is not HRT compatible - cannot switch while in HRT/NOHZ mode\n",
+                               cs->name);
                        override_name[0] = 0;
                } else
                        /* Override clocksource can be used. */
@@ -593,16 +595,15 @@ static void __clocksource_select(bool skipcur)
  */
 static void clocksource_select(void)
 {
-       return __clocksource_select(false);
+       __clocksource_select(false);
 }
 
 static void clocksource_select_fallback(void)
 {
-       return __clocksource_select(true);
+       __clocksource_select(true);
 }
 
 #else /* !CONFIG_ARCH_USES_GETTIMEOFFSET */
-
 static inline void clocksource_select(void) { }
 static inline void clocksource_select_fallback(void) { }
 
@@ -708,8 +709,8 @@ void __clocksource_update_freq_scale(struct clocksource *cs, u32 scale, u32 freq
 
        clocksource_update_max_deferment(cs);
 
-       pr_info("clocksource %s: mask: 0x%llx max_cycles: 0x%llx, max_idle_ns: %lld ns\n",
-                       cs->name, cs->mask, cs->max_cycles, cs->max_idle_ns);
+       pr_info("%s: mask: 0x%llx max_cycles: 0x%llx, max_idle_ns: %lld ns\n",
+               cs->name, cs->mask, cs->max_cycles, cs->max_idle_ns);
 }
 EXPORT_SYMBOL_GPL(__clocksource_update_freq_scale);
 
@@ -1008,12 +1009,10 @@ __setup("clocksource=", boot_override_clocksource);
 static int __init boot_override_clock(char* str)
 {
        if (!strcmp(str, "pmtmr")) {
-               printk("Warning: clock=pmtmr is deprecated. "
-                       "Use clocksource=acpi_pm.\n");
+               pr_warn("clock=pmtmr is deprecated - use clocksource=acpi_pm\n");
                return boot_override_clocksource("acpi_pm");
        }
-       printk("Warning! clock= boot option is deprecated. "
-               "Use clocksource=xyz\n");
+       pr_warn("clock= boot option is deprecated - use clocksource=xyz\n");
        return boot_override_clocksource(str);
 }