Commit ce85b4f2 authored by Joe Perches's avatar Joe Perches Committed by Linus Torvalds

softirq: use const char * const for softirq_to_name, whitespace neatening

Reduce data size a little.
Reduce checkpatch noise.

$ size kernel/softirq.o*
   text	   data	    bss	    dec	    hex	filename
  11554	   6013	   4008	  21575	   5447	kernel/softirq.o.new
  11474	   6093	   4008	  21575	   5447	kernel/softirq.o.old
Signed-off-by: default avatarJoe Perches <joe@perches.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 40322764
...@@ -360,7 +360,7 @@ enum ...@@ -360,7 +360,7 @@ enum
/* map softirq index to softirq name. update 'softirq_to_name' in /* map softirq index to softirq name. update 'softirq_to_name' in
* kernel/softirq.c when adding a new softirq. * kernel/softirq.c when adding a new softirq.
*/ */
extern char *softirq_to_name[NR_SOFTIRQS]; extern const char * const softirq_to_name[NR_SOFTIRQS];
/* softirq mask and active fields moved to irq_cpustat_t in /* softirq mask and active fields moved to irq_cpustat_t in
* asm/hardirq.h to get better cache usage. KAO * asm/hardirq.h to get better cache usage. KAO
......
...@@ -56,7 +56,7 @@ static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp ...@@ -56,7 +56,7 @@ static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp
DEFINE_PER_CPU(struct task_struct *, ksoftirqd); DEFINE_PER_CPU(struct task_struct *, ksoftirqd);
char *softirq_to_name[NR_SOFTIRQS] = { const char * const softirq_to_name[NR_SOFTIRQS] = {
"HI", "TIMER", "NET_TX", "NET_RX", "BLOCK", "BLOCK_IOPOLL", "HI", "TIMER", "NET_TX", "NET_RX", "BLOCK", "BLOCK_IOPOLL",
"TASKLET", "SCHED", "HRTIMER", "RCU" "TASKLET", "SCHED", "HRTIMER", "RCU"
}; };
...@@ -138,7 +138,6 @@ void _local_bh_enable(void) ...@@ -138,7 +138,6 @@ void _local_bh_enable(void)
WARN_ON_ONCE(in_irq()); WARN_ON_ONCE(in_irq());
__local_bh_enable(SOFTIRQ_DISABLE_OFFSET); __local_bh_enable(SOFTIRQ_DISABLE_OFFSET);
} }
EXPORT_SYMBOL(_local_bh_enable); EXPORT_SYMBOL(_local_bh_enable);
void __local_bh_enable_ip(unsigned long ip, unsigned int cnt) void __local_bh_enable_ip(unsigned long ip, unsigned int cnt)
...@@ -436,8 +435,7 @@ void open_softirq(int nr, void (*action)(struct softirq_action *)) ...@@ -436,8 +435,7 @@ void open_softirq(int nr, void (*action)(struct softirq_action *))
/* /*
* Tasklets * Tasklets
*/ */
struct tasklet_head struct tasklet_head {
{
struct tasklet_struct *head; struct tasklet_struct *head;
struct tasklet_struct **tail; struct tasklet_struct **tail;
}; };
...@@ -456,7 +454,6 @@ void __tasklet_schedule(struct tasklet_struct *t) ...@@ -456,7 +454,6 @@ void __tasklet_schedule(struct tasklet_struct *t)
raise_softirq_irqoff(TASKLET_SOFTIRQ); raise_softirq_irqoff(TASKLET_SOFTIRQ);
local_irq_restore(flags); local_irq_restore(flags);
} }
EXPORT_SYMBOL(__tasklet_schedule); EXPORT_SYMBOL(__tasklet_schedule);
void __tasklet_hi_schedule(struct tasklet_struct *t) void __tasklet_hi_schedule(struct tasklet_struct *t)
...@@ -470,7 +467,6 @@ void __tasklet_hi_schedule(struct tasklet_struct *t) ...@@ -470,7 +467,6 @@ void __tasklet_hi_schedule(struct tasklet_struct *t)
raise_softirq_irqoff(HI_SOFTIRQ); raise_softirq_irqoff(HI_SOFTIRQ);
local_irq_restore(flags); local_irq_restore(flags);
} }
EXPORT_SYMBOL(__tasklet_hi_schedule); EXPORT_SYMBOL(__tasklet_hi_schedule);
void __tasklet_hi_schedule_first(struct tasklet_struct *t) void __tasklet_hi_schedule_first(struct tasklet_struct *t)
...@@ -481,7 +477,6 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t) ...@@ -481,7 +477,6 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t)
__this_cpu_write(tasklet_hi_vec.head, t); __this_cpu_write(tasklet_hi_vec.head, t);
__raise_softirq_irqoff(HI_SOFTIRQ); __raise_softirq_irqoff(HI_SOFTIRQ);
} }
EXPORT_SYMBOL(__tasklet_hi_schedule_first); EXPORT_SYMBOL(__tasklet_hi_schedule_first);
static void tasklet_action(struct softirq_action *a) static void tasklet_action(struct softirq_action *a)
...@@ -501,7 +496,8 @@ static void tasklet_action(struct softirq_action *a) ...@@ -501,7 +496,8 @@ static void tasklet_action(struct softirq_action *a)
if (tasklet_trylock(t)) { if (tasklet_trylock(t)) {
if (!atomic_read(&t->count)) { if (!atomic_read(&t->count)) {
if (!test_and_clear_bit(TASKLET_STATE_SCHED, &t->state)) if (!test_and_clear_bit(TASKLET_STATE_SCHED,
&t->state))
BUG(); BUG();
t->func(t->data); t->func(t->data);
tasklet_unlock(t); tasklet_unlock(t);
...@@ -536,7 +532,8 @@ static void tasklet_hi_action(struct softirq_action *a) ...@@ -536,7 +532,8 @@ static void tasklet_hi_action(struct softirq_action *a)
if (tasklet_trylock(t)) { if (tasklet_trylock(t)) {
if (!atomic_read(&t->count)) { if (!atomic_read(&t->count)) {
if (!test_and_clear_bit(TASKLET_STATE_SCHED, &t->state)) if (!test_and_clear_bit(TASKLET_STATE_SCHED,
&t->state))
BUG(); BUG();
t->func(t->data); t->func(t->data);
tasklet_unlock(t); tasklet_unlock(t);
...@@ -554,7 +551,6 @@ static void tasklet_hi_action(struct softirq_action *a) ...@@ -554,7 +551,6 @@ static void tasklet_hi_action(struct softirq_action *a)
} }
} }
void tasklet_init(struct tasklet_struct *t, void tasklet_init(struct tasklet_struct *t,
void (*func)(unsigned long), unsigned long data) void (*func)(unsigned long), unsigned long data)
{ {
...@@ -564,7 +560,6 @@ void tasklet_init(struct tasklet_struct *t, ...@@ -564,7 +560,6 @@ void tasklet_init(struct tasklet_struct *t,
t->func = func; t->func = func;
t->data = data; t->data = data;
} }
EXPORT_SYMBOL(tasklet_init); EXPORT_SYMBOL(tasklet_init);
void tasklet_kill(struct tasklet_struct *t) void tasklet_kill(struct tasklet_struct *t)
...@@ -580,7 +575,6 @@ void tasklet_kill(struct tasklet_struct *t) ...@@ -580,7 +575,6 @@ void tasklet_kill(struct tasklet_struct *t)
tasklet_unlock_wait(t); tasklet_unlock_wait(t);
clear_bit(TASKLET_STATE_SCHED, &t->state); clear_bit(TASKLET_STATE_SCHED, &t->state);
} }
EXPORT_SYMBOL(tasklet_kill); EXPORT_SYMBOL(tasklet_kill);
/* /*
...@@ -730,8 +724,7 @@ static void takeover_tasklets(unsigned int cpu) ...@@ -730,8 +724,7 @@ static void takeover_tasklets(unsigned int cpu)
} }
#endif /* CONFIG_HOTPLUG_CPU */ #endif /* CONFIG_HOTPLUG_CPU */
static int cpu_callback(struct notifier_block *nfb, static int cpu_callback(struct notifier_block *nfb, unsigned long action,
unsigned long action,
void *hcpu) void *hcpu)
{ {
switch (action) { switch (action) {
......
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