ath10k: add trace event for WMI_DEBUG_MESG_EVENTID

[cascardo/linux.git] / kernel / smp.c

diff --git a/kernel/smp.c b/kernel/smp.c
index 0564571..bd9f940 100644 (file)
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -15,9 +15,9 @@
 
 #include "smpboot.h"
 
-#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
 enum {
        CSD_FLAG_LOCK           = 0x01,
+       CSD_FLAG_WAIT           = 0x02,
 };
 
 struct call_function_data {
@@ -124,7 +124,7 @@ static void csd_lock(struct call_single_data *csd)
 
 static void csd_unlock(struct call_single_data *csd)
 {
-       WARN_ON(!(csd->flags & CSD_FLAG_LOCK));
+       WARN_ON((csd->flags & CSD_FLAG_WAIT) && !(csd->flags & CSD_FLAG_LOCK));
 
        /*
         * ensure we're all done before releasing data:
@@ -139,13 +139,15 @@ static void csd_unlock(struct call_single_data *csd)
  * for execution on the given CPU. data must already have
  * ->func, ->info, and ->flags set.
  */
-static
-void generic_exec_single(int cpu, struct call_single_data *csd, int wait)
+static void generic_exec_single(int cpu, struct call_single_data *csd, int wait)
 {
        struct call_single_queue *dst = &per_cpu(call_single_queue, cpu);
        unsigned long flags;
        int ipi;
 
+       if (wait)
+               csd->flags |= CSD_FLAG_WAIT;
+
        raw_spin_lock_irqsave(&dst->lock, flags);
        ipi = list_empty(&dst->list);
        list_add_tail(&csd->list, &dst->list);
@@ -340,6 +342,7 @@ void __smp_call_function_single(int cpu, struct call_single_data *csd,
        }
        put_cpu();
 }
+EXPORT_SYMBOL_GPL(__smp_call_function_single);
 
 /**
  * smp_call_function_many(): Run a function on a set of other CPUs.
@@ -459,7 +462,6 @@ int smp_call_function(smp_call_func_t func, void *info, int wait)
        return 0;
 }
 EXPORT_SYMBOL(smp_call_function);
-#endif /* USE_GENERIC_SMP_HELPERS */
 
 /* Setup configured maximum number of CPUs to activate */
 unsigned int setup_max_cpus = NR_CPUS;
@@ -524,6 +526,11 @@ void __init setup_nr_cpu_ids(void)
        nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
 }
 
+void __weak smp_announce(void)
+{
+       printk(KERN_INFO "Brought up %d CPUs\n", num_online_cpus());
+}
+
 /* Called by boot processor to activate the rest. */
 void __init smp_init(void)
 {
@@ -540,7 +547,7 @@ void __init smp_init(void)
        }
 
        /* Any cleanup work */
-       printk(KERN_INFO "Brought up %ld CPUs\n", (long)num_online_cpus());
+       smp_announce();
        smp_cpus_done(setup_max_cpus);
 }