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authorCarlos R. Mafra <crmafra2@gmail.com>2008-05-15 10:15:37 -0400
committerThomas Gleixner <tglx@linutronix.de>2008-05-25 01:43:15 -0400
commit962cf36c5bf6d2840b8d66ee9a606fae2f540bbd (patch)
tree263ead6b5224453e8c2a92f1ad9cd2091e003b68 /kernel/hrtimer.c
parent75d3bce2fc0a80f435fe12f2c9ed2632c8ac29e4 (diff)
Remove argument from open_softirq which is always NULL
As git-grep shows, open_softirq() is always called with the last argument being NULL block/blk-core.c: open_softirq(BLOCK_SOFTIRQ, blk_done_softirq, NULL); kernel/hrtimer.c: open_softirq(HRTIMER_SOFTIRQ, run_hrtimer_softirq, NULL); kernel/rcuclassic.c: open_softirq(RCU_SOFTIRQ, rcu_process_callbacks, NULL); kernel/rcupreempt.c: open_softirq(RCU_SOFTIRQ, rcu_process_callbacks, NULL); kernel/sched.c: open_softirq(SCHED_SOFTIRQ, run_rebalance_domains, NULL); kernel/softirq.c: open_softirq(TASKLET_SOFTIRQ, tasklet_action, NULL); kernel/softirq.c: open_softirq(HI_SOFTIRQ, tasklet_hi_action, NULL); kernel/timer.c: open_softirq(TIMER_SOFTIRQ, run_timer_softirq, NULL); net/core/dev.c: open_softirq(NET_TX_SOFTIRQ, net_tx_action, NULL); net/core/dev.c: open_softirq(NET_RX_SOFTIRQ, net_rx_action, NULL); This observation has already been made by Matthew Wilcox in June 2002 (http://www.cs.helsinki.fi/linux/linux-kernel/2002-25/0687.html) "I notice that none of the current softirq routines use the data element passed to them." and the situation hasn't changed since them. So it appears we can safely remove that extra argument to save 128 (54) bytes of kernel data (text). Signed-off-by: Carlos R. Mafra <crmafra@ift.unesp.br> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/hrtimer.c')
-rw-r--r--kernel/hrtimer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 421be5fe5cc7..861b4088092a 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1669,7 +1669,7 @@ void __init hrtimers_init(void)
1669 (void *)(long)smp_processor_id()); 1669 (void *)(long)smp_processor_id());
1670 register_cpu_notifier(&hrtimers_nb); 1670 register_cpu_notifier(&hrtimers_nb);
1671#ifdef CONFIG_HIGH_RES_TIMERS 1671#ifdef CONFIG_HIGH_RES_TIMERS
1672 open_softirq(HRTIMER_SOFTIRQ, run_hrtimer_softirq, NULL); 1672 open_softirq(HRTIMER_SOFTIRQ, run_hrtimer_softirq);
1673#endif 1673#endif
1674} 1674}
1675 1675