powerpc/pseries: Remove unnecessary variable initializations in numa.c
Jesse Larrew [Thu, 20 Jan 2011 19:01:35 +0000 (19:01 +0000)]
Remove unnecessary variable initializations in VPHN functions.

Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/mm/numa.c

index 6c0cd06..9e36caf 100644 (file)
@@ -1303,10 +1303,10 @@ static void set_topology_timer(void);
  */
 static void setup_cpu_associativity_change_counters(void)
 {
-       int cpu = 0;
+       int cpu;
 
        for_each_possible_cpu(cpu) {
-               int i = 0;
+               int i;
                u8 *counts = vphn_cpu_change_counts[cpu];
                volatile u8 *hypervisor_counts = lppaca[cpu].vphn_assoc_counts;
 
@@ -1328,7 +1328,7 @@ static void setup_cpu_associativity_change_counters(void)
  */
 static int update_cpu_associativity_changes_mask(void)
 {
-       int cpu = 0, nr_cpus = 0;
+       int cpu, nr_cpus = 0;
        cpumask_t *changes = &cpu_associativity_changes_mask;
 
        cpumask_clear(changes);
@@ -1362,8 +1362,7 @@ static int update_cpu_associativity_changes_mask(void)
  */
 static int vphn_unpack_associativity(const long *packed, unsigned int *unpacked)
 {
-       int i = 0;
-       int nr_assoc_doms = 0;
+       int i, nr_assoc_doms = 0;
        const u16 *field = (const u16*) packed;
 
 #define VPHN_FIELD_UNUSED      (0xffff)
@@ -1402,7 +1401,7 @@ static int vphn_unpack_associativity(const long *packed, unsigned int *unpacked)
  */
 static long hcall_vphn(unsigned long cpu, unsigned int *associativity)
 {
-       long rc = 0;
+       long rc;
        long retbuf[PLPAR_HCALL9_BUFSIZE] = {0};
        u64 flags = 1;
        int hwcpu = get_hard_smp_processor_id(cpu);
@@ -1416,7 +1415,7 @@ static long hcall_vphn(unsigned long cpu, unsigned int *associativity)
 static long vphn_get_associativity(unsigned long cpu,
                                        unsigned int *associativity)
 {
-       long rc = 0;
+       long rc;
 
        rc = hcall_vphn(cpu, associativity);
 
@@ -1442,9 +1441,9 @@ static long vphn_get_associativity(unsigned long cpu,
  */
 int arch_update_cpu_topology(void)
 {
-       int cpu = 0, nid = 0, old_nid = 0;
+       int cpu, nid, old_nid;
        unsigned int associativity[VPHN_ASSOC_BUFSIZE] = {0};
-       struct sys_device *sysdev = NULL;
+       struct sys_device *sysdev;
 
        for_each_cpu_mask(cpu, cpu_associativity_changes_mask) {
                vphn_get_associativity(cpu, associativity);