powerpc-64s-implement-arch-specific-hardlockup-watchdog-checkpatch-fixes

WARNING: line over 80 characters
torvalds#97: FILE: arch/powerpc/include/asm/smp.h:59:
+extern int smp_send_nmi_ipi(int cpu, void (*fn)(struct pt_regs *), u64 delay_us);

WARNING: line over 80 characters
torvalds#119: FILE: arch/powerpc/kernel/exceptions-64s.S:1276:
+#if defined(CONFIG_HARDLOCKUP_DETECTOR) && defined(CONFIG_HAVE_HARDLOCKUP_DETECTOR_ARCH)

ERROR: do not initialise statics to 0
torvalds#317: FILE: arch/powerpc/kernel/watchdog.c:62:
+static unsigned long __wd_smp_lock = 0;

WARNING: memory barrier without comment
torvalds#554: FILE: arch/powerpc/kernel/watchdog.c:299:
+	smp_wmb();

WARNING: Prefer pr_warn(... to pr_warning(...
torvalds#617: FILE: arch/powerpc/kernel/watchdog.c:362:
+		pr_warning("Watchdog could not be initialized");

total: 1 errors, 4 warnings, 543 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/powerpc-64s-implement-arch-specific-hardlockup-watchdog.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Nicholas Piggin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: akpm00

arch/powerpc/kernel/watchdog.c

@@ -59,7 +59,7 @@ static DEFINE_PER_CPU(u64, wd_timer_tb);
  * This will work best with NMI IPIs for crash code so the stuck CPUs
  * can be pulled out to get their backtraces.
  */
-static unsigned long __wd_smp_lock = 0;
+static unsigned long __wd_smp_lock;
 static cpumask_t wd_smp_cpus_pending;
 static cpumask_t wd_smp_cpus_stuck;
 static u64 wd_smp_last_reset_tb;
@@ -359,7 +359,7 @@ static int __init powerpc_watchdog_init(void)
 	err = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "powerpc/watchdog:online",
 				start_wd_on_cpu, stop_wd_on_cpu);
 	if (err < 0)
-		pr_warning("Watchdog could not be initialized");
+		pr_warn("Watchdog could not be initialized");
 
 	return 0;
 }