diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/ipmi/ipmi_msghandler.c | 30 | ||||
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_intf.c | 6 |
2 files changed, 28 insertions, 8 deletions
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 9f0075ca34ba..8b71f5638b60 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -351,8 +351,16 @@ struct ipmi_smi /* Invalid data in an event. */ unsigned int invalid_events; + /* Events that were received with the proper format. */ unsigned int events; + + /* + * run_to_completion duplicate of smb_info, smi_info + * and ipmi_serial_info structures. Used to decrease numbers of + * parameters passed by "low" level IPMI code. + */ + int run_to_completion; }; #define to_si_intf_from_dev(device) container_of(device, struct ipmi_smi, dev) @@ -3451,8 +3459,9 @@ static int handle_new_recv_msg(ipmi_smi_t intf, void ipmi_smi_msg_received(ipmi_smi_t intf, struct ipmi_smi_msg *msg) { - unsigned long flags; + unsigned long flags = 0; /* keep us warning-free. */ int rv; + int run_to_completion; if ((msg->data_size >= 2) @@ -3501,21 +3510,28 @@ void ipmi_smi_msg_received(ipmi_smi_t intf, /* To preserve message order, if the list is not empty, we tack this message onto the end of the list. */ - spin_lock_irqsave(&intf->waiting_msgs_lock, flags); + run_to_completion = intf->run_to_completion; + if (!run_to_completion) + spin_lock_irqsave(&intf->waiting_msgs_lock, flags); if (!list_empty(&intf->waiting_msgs)) { list_add_tail(&msg->link, &intf->waiting_msgs); - spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags); + if (!run_to_completion) + spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags); goto out; } - spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags); + if (!run_to_completion) + spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags); rv = handle_new_recv_msg(intf, msg); if (rv > 0) { /* Could not handle the message now, just add it to a list to handle later. */ - spin_lock_irqsave(&intf->waiting_msgs_lock, flags); + run_to_completion = intf->run_to_completion; + if (!run_to_completion) + spin_lock_irqsave(&intf->waiting_msgs_lock, flags); list_add_tail(&msg->link, &intf->waiting_msgs); - spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags); + if (!run_to_completion) + spin_unlock_irqrestore(&intf->waiting_msgs_lock, flags); } else if (rv == 0) { ipmi_free_smi_msg(msg); } @@ -3884,6 +3900,7 @@ static void send_panic_events(char *str) /* Interface is not ready. */ continue; + intf->run_to_completion = 1; /* Send the event announcing the panic. */ intf->handlers->set_run_to_completion(intf->send_info, 1); i_ipmi_request(NULL, @@ -4059,6 +4076,7 @@ static int panic_event(struct notifier_block *this, /* Interface is not ready. */ continue; + intf->run_to_completion = 1; intf->handlers->set_run_to_completion(intf->send_info, 1); } diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 30f535657342..657034febdaf 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -289,7 +289,8 @@ static enum si_sm_result start_next_msg(struct smi_info *smi_info) /* No need to save flags, we aleady have interrupts off and we already hold the SMI lock. */ - spin_lock(&(smi_info->msg_lock)); + if (!smi_info->run_to_completion) + spin_lock(&(smi_info->msg_lock)); /* Pick the high priority queue first. */ if (!list_empty(&(smi_info->hp_xmit_msgs))) { @@ -329,7 +330,8 @@ static enum si_sm_result start_next_msg(struct smi_info *smi_info) rv = SI_SM_CALL_WITHOUT_DELAY; } out: - spin_unlock(&(smi_info->msg_lock)); + if (!smi_info->run_to_completion) + spin_unlock(&(smi_info->msg_lock)); return rv; } |