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authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>2006-05-12 11:13:02 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-19 14:13:24 -0700
commitf42639572680f4d69d9522f91c65e793ebeca098 (patch)
tree62a905ab3c2f5f11319d1e558bf87c0e75459f83 /drivers/pci/hotplug/shpchp_hpc.c
parent4085399da3c2176ba8ed64e93a2722907d41df3f (diff)
[PATCH] shpchp: Cleanup interrupt polling timer
This patch cleans up the interrupt polling timer code in shpchp_hpc.c. This has no functional changes. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Cc: Kristen Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/hotplug/shpchp_hpc.c')
-rw-r--r--drivers/pci/hotplug/shpchp_hpc.c59
1 files changed, 26 insertions, 33 deletions
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index f6b3bf3ee7c..3a8186c405f 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -221,8 +221,7 @@ static spinlock_t list_lock;
static atomic_t shpchp_num_controllers = ATOMIC_INIT(0);
static irqreturn_t shpc_isr(int irq, void *dev_id, struct pt_regs *regs);
-
-static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int seconds);
+static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec);
static int hpc_check_cmd_status(struct controller *ctrl);
static inline u8 shpc_readb(struct controller *ctrl, int reg)
@@ -268,47 +267,41 @@ static inline int shpc_indirect_read(struct controller *ctrl, int index,
return pci_read_config_dword(pdev, cap_offset + DWORD_DATA, value);
}
-/* This is the interrupt polling timeout function. */
+/*
+ * This is the interrupt polling timeout function.
+ */
static void int_poll_timeout(unsigned long lphp_ctlr)
{
- struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *)lphp_ctlr;
-
- DBG_ENTER_ROUTINE
+ struct php_ctlr_state_s *php_ctlr =
+ (struct php_ctlr_state_s *)lphp_ctlr;
- if ( !php_ctlr ) {
- err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
- return;
- }
+ DBG_ENTER_ROUTINE
- /* Poll for interrupt events. regs == NULL => polling */
- shpc_isr(0, php_ctlr->callback_instance_id, NULL );
+ /* Poll for interrupt events. regs == NULL => polling */
+ shpc_isr(0, php_ctlr->callback_instance_id, NULL);
- init_timer(&php_ctlr->int_poll_timer);
+ init_timer(&php_ctlr->int_poll_timer);
if (!shpchp_poll_time)
- shpchp_poll_time = 2; /* reset timer to poll in 2 secs if user doesn't specify at module installation*/
+ shpchp_poll_time = 2; /* default polling interval is 2 sec */
- start_int_poll_timer(php_ctlr, shpchp_poll_time);
-
- return;
+ start_int_poll_timer(php_ctlr, shpchp_poll_time);
+
+ DBG_LEAVE_ROUTINE
}
-/* This function starts the interrupt polling timer. */
-static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int seconds)
+/*
+ * This function starts the interrupt polling timer.
+ */
+static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec)
{
- if (!php_ctlr) {
- err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
- return;
- }
-
- if ( ( seconds <= 0 ) || ( seconds > 60 ) )
- seconds = 2; /* Clamp to sane value */
-
- php_ctlr->int_poll_timer.function = &int_poll_timeout;
- php_ctlr->int_poll_timer.data = (unsigned long)php_ctlr; /* Instance data */
- php_ctlr->int_poll_timer.expires = jiffies + seconds * HZ;
- add_timer(&php_ctlr->int_poll_timer);
-
- return;
+ /* Clamp to sane value */
+ if ((sec <= 0) || (sec > 60))
+ sec = 2;
+
+ php_ctlr->int_poll_timer.function = &int_poll_timeout;
+ php_ctlr->int_poll_timer.data = (unsigned long)php_ctlr;
+ php_ctlr->int_poll_timer.expires = jiffies + sec * HZ;
+ add_timer(&php_ctlr->int_poll_timer);
}
static inline int shpc_wait_cmd(struct controller *ctrl)