[PATCH] IPMI: remove high res timer code

There was some old high-res-timer code in the IPMI driver that is dead.
Remove it.

Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 101c14b9b26de4b22751d4426d5474b909266d01..bd4f2248b758e40a87039a75359a403c14357cb7 100644 (file)
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -55,23 +55,6 @@
 #include <linux/mutex.h>
 #include <linux/kthread.h>
 #include <asm/irq.h>
-#ifdef CONFIG_HIGH_RES_TIMERS
-#include <linux/hrtime.h>
-# if defined(schedule_next_int)
-/* Old high-res timer code, do translations. */
-#  define get_arch_cycles(a) quick_update_jiffies_sub(a)
-#  define arch_cycles_per_jiffy cycles_per_jiffies
-# endif
-static inline void add_usec_to_timer(struct timer_list *t, long v)
-{
-       t->arch_cycle_expires += nsec_to_arch_cycle(v * 1000);
-       while (t->arch_cycle_expires >= arch_cycles_per_jiffy)
-       {
-               t->expires++;
-               t->arch_cycle_expires -= arch_cycles_per_jiffy;
-       }
-}
-#endif
 #include <linux/interrupt.h>
 #include <linux/rcupdate.h>
 #include <linux/ipmi_smi.h>
@@ -243,8 +226,6 @@ static int register_xaction_notifier(struct notifier_block * nb)
        return atomic_notifier_chain_register(&xaction_notifier_list, nb);
 }
 
-static void si_restart_short_timer(struct smi_info *smi_info);
-
 static void deliver_recv_msg(struct smi_info *smi_info,
                             struct ipmi_smi_msg *msg)
 {
@@ -768,7 +749,6 @@ static void sender(void                *send_info,
            && (smi_info->curr_msg == NULL))
        {
                start_next_msg(smi_info);
-               si_restart_short_timer(smi_info);
        }
        spin_unlock_irqrestore(&(smi_info->si_lock), flags);
 }
@@ -833,37 +813,6 @@ static void request_events(void *send_info)
 
 static int initialized = 0;
 
-/* Must be called with interrupts off and with the si_lock held. */
-static void si_restart_short_timer(struct smi_info *smi_info)
-{
-#if defined(CONFIG_HIGH_RES_TIMERS)
-       unsigned long flags;
-       unsigned long jiffies_now;
-       unsigned long seq;
-
-       if (del_timer(&(smi_info->si_timer))) {
-               /* If we don't delete the timer, then it will go off
-                  immediately, anyway.  So we only process if we
-                  actually delete the timer. */
-
-               do {
-                       seq = read_seqbegin_irqsave(&xtime_lock, flags);
-                       jiffies_now = jiffies;
-                       smi_info->si_timer.expires = jiffies_now;
-                       smi_info->si_timer.arch_cycle_expires
-                               = get_arch_cycles(jiffies_now);
-               } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
-               add_usec_to_timer(&smi_info->si_timer, SI_SHORT_TIMEOUT_USEC);
-
-               add_timer(&(smi_info->si_timer));
-               spin_lock_irqsave(&smi_info->count_lock, flags);
-               smi_info->timeout_restarts++;
-               spin_unlock_irqrestore(&smi_info->count_lock, flags);
-       }
-#endif
-}
-
 static void smi_timeout(unsigned long data)
 {
        struct smi_info   *smi_info = (struct smi_info *) data;
@@ -904,31 +853,15 @@ static void smi_timeout(unsigned long data)
        /* If the state machine asks for a short delay, then shorten
            the timer timeout. */
        if (smi_result == SI_SM_CALL_WITH_DELAY) {
-#if defined(CONFIG_HIGH_RES_TIMERS)
-               unsigned long seq;
-#endif
                spin_lock_irqsave(&smi_info->count_lock, flags);
                smi_info->short_timeouts++;
                spin_unlock_irqrestore(&smi_info->count_lock, flags);
-#if defined(CONFIG_HIGH_RES_TIMERS)
-               do {
-                       seq = read_seqbegin_irqsave(&xtime_lock, flags);
-                       smi_info->si_timer.expires = jiffies;
-                       smi_info->si_timer.arch_cycle_expires
-                               = get_arch_cycles(smi_info->si_timer.expires);
-               } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-               add_usec_to_timer(&smi_info->si_timer, SI_SHORT_TIMEOUT_USEC);
-#else
                smi_info->si_timer.expires = jiffies + 1;
-#endif
        } else {
                spin_lock_irqsave(&smi_info->count_lock, flags);
                smi_info->long_timeouts++;
                spin_unlock_irqrestore(&smi_info->count_lock, flags);
                smi_info->si_timer.expires = jiffies + SI_TIMEOUT_JIFFIES;
-#if defined(CONFIG_HIGH_RES_TIMERS)
-               smi_info->si_timer.arch_cycle_expires = 0;
-#endif
        }
 
  do_add_timer: