cpumask: arch_send_call_function_ipi_mask: m32r

We're weaning the core code off handing cpumask's around on-stack.
This introduces arch_send_call_function_ipi_mask(), and by defining
it, the old arch_send_call_function_ipi is defined by the core code.

We also take the chance to wean the implementations off the
obsolescent for_each_cpu_mask(): making send_ipi_mask take the pointer
seemed the most natural way to ensure all implementations used
for_each_cpu.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

2 files changed, 13 insertions, 12 deletions

diff --git a/arch/m32r/include/asm/smp.h b/arch/m32r/include/asm/smp.h
index b96a6d2ffbc3..c2be49d408a3 100644
--- a/arch/m32r/include/asm/smp.h
+++ b/arch/m32r/include/asm/smp.h
@@ -88,7 +88,8 @@ extern void smp_send_timer(void);
 extern unsigned long send_IPI_mask_phys(cpumask_t, int, int);
 
 extern void arch_send_call_function_single_ipi(int cpu);
-extern void arch_send_call_function_ipi(cpumask_t mask);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+#define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask
 
 #endif  /* not __ASSEMBLY__ */
 
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index 929e5c9d3ad9..45c512bcd4ca 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -85,7 +85,7 @@ void smp_ipi_timer_interrupt(struct pt_regs *);
 void smp_local_timer_interrupt(void);
 
 static void send_IPI_allbutself(int, int);
-static void send_IPI_mask(cpumask_t, int, int);
+static void send_IPI_mask(const struct cpumask *, int, int);
 unsigned long send_IPI_mask_phys(cpumask_t, int, int);
 
 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
@@ -113,7 +113,7 @@ unsigned long send_IPI_mask_phys(cpumask_t, int, int);
 void smp_send_reschedule(int cpu_id)
 {
         WARN_ON(cpu_is_offline(cpu_id));
-        send_IPI_mask(cpumask_of_cpu(cpu_id), RESCHEDULE_IPI, 1);
+        send_IPI_mask(cpumask_of(cpu_id), RESCHEDULE_IPI, 1);
 }
 
 /*==========================================================================*
@@ -168,7 +168,7 @@ void smp_flush_cache_all(void)
         spin_lock(&flushcache_lock);
         mask=cpus_addr(cpumask);
         atomic_set_mask(*mask, (atomic_t *)&flushcache_cpumask);
-        send_IPI_mask(cpumask, INVALIDATE_CACHE_IPI, 0);
+        send_IPI_mask(&cpumask, INVALIDATE_CACHE_IPI, 0);
         _flush_cache_copyback_all();
         while (flushcache_cpumask)
                 mb();
@@ -424,7 +424,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
          * We have to send the IPI only to
          * CPUs affected.
          */
-        send_IPI_mask(cpumask, INVALIDATE_TLB_IPI, 0);
+        send_IPI_mask(&cpumask, INVALIDATE_TLB_IPI, 0);
 
         while (!cpus_empty(flush_cpumask)) {
                 /* nothing. lockup detection does not belong here */
@@ -546,14 +546,14 @@ static void stop_this_cpu(void *dummy)
         for ( ; ; );
 }
 
-void arch_send_call_function_ipi(cpumask_t mask)
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 {
         send_IPI_mask(mask, CALL_FUNCTION_IPI, 0);
 }
 
 void arch_send_call_function_single_ipi(int cpu)
 {
-        send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNC_SINGLE_IPI, 0);
+        send_IPI_mask(cpumask_of(cpu), CALL_FUNC_SINGLE_IPI, 0);
 }
 
 /*==========================================================================*
@@ -729,7 +729,7 @@ static void send_IPI_allbutself(int ipi_num, int try)
         cpumask = cpu_online_map;
         cpu_clear(smp_processor_id(), cpumask);
 
-        send_IPI_mask(cpumask, ipi_num, try);
+        send_IPI_mask(&cpumask, ipi_num, try);
 }
 
 /*==========================================================================*
@@ -752,7 +752,7 @@ static void send_IPI_allbutself(int ipi_num, int try)
  * ---------- --- --------------------------------------------------------
  *
  *==========================================================================*/
-static void send_IPI_mask(cpumask_t cpumask, int ipi_num, int try)
+static void send_IPI_mask(const struct cpumask *cpumask, int ipi_num, int try)
 {
         cpumask_t physid_mask, tmp;
         int cpu_id, phys_id;
@@ -761,11 +761,11 @@ static void send_IPI_mask(cpumask_t cpumask, int ipi_num, int try)
         if (num_cpus <= 1)      /* NO MP */
                 return;
 
-        cpus_and(tmp, cpumask, cpu_online_map);
-        BUG_ON(!cpus_equal(cpumask, tmp));
+        cpumask_and(&tmp, cpumask, cpu_online_mask);
+        BUG_ON(!cpumask_equal(cpumask, &tmp));
 
         physid_mask = CPU_MASK_NONE;
-        for_each_cpu_mask(cpu_id, cpumask){
+        for_each_cpu(cpu_id, cpumask) {
                 if ((phys_id = cpu_to_physid(cpu_id)) != -1)
                         cpu_set(phys_id, physid_mask);
         }