diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_intf.c | 45 |
1 files changed, 30 insertions, 15 deletions
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 2952d2dcc855..4a894afc5a2e 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -262,6 +262,11 @@ struct smi_info { */ bool supports_event_msg_buff; + /* + * Did we get an attention that we did not handle? + */ + bool got_attn; + /* From the get device id response... */ struct ipmi_device_id device_id; @@ -813,25 +818,35 @@ static enum si_sm_result smi_event_handler(struct smi_info *smi_info, * We prefer handling attn over new messages. But don't do * this if there is not yet an upper layer to handle anything. */ - if (likely(smi_info->intf) && si_sm_result == SI_SM_ATTN) { + if (likely(smi_info->intf) && + (si_sm_result == SI_SM_ATTN || smi_info->got_attn)) { unsigned char msg[2]; - smi_inc_stat(smi_info, attentions); + if (smi_info->si_state != SI_NORMAL) { + /* + * We got an ATTN, but we are doing something else. + * Handle the ATTN later. + */ + smi_info->got_attn = true; + } else { + smi_info->got_attn = false; + smi_inc_stat(smi_info, attentions); - /* - * Got a attn, send down a get message flags to see - * what's causing it. It would be better to handle - * this in the upper layer, but due to the way - * interrupts work with the SMI, that's not really - * possible. - */ - msg[0] = (IPMI_NETFN_APP_REQUEST << 2); - msg[1] = IPMI_GET_MSG_FLAGS_CMD; + /* + * Got a attn, send down a get message flags to see + * what's causing it. It would be better to handle + * this in the upper layer, but due to the way + * interrupts work with the SMI, that's not really + * possible. + */ + msg[0] = (IPMI_NETFN_APP_REQUEST << 2); + msg[1] = IPMI_GET_MSG_FLAGS_CMD; - smi_info->handlers->start_transaction( - smi_info->si_sm, msg, 2); - smi_info->si_state = SI_GETTING_FLAGS; - goto restart; + smi_info->handlers->start_transaction( + smi_info->si_sm, msg, 2); + smi_info->si_state = SI_GETTING_FLAGS; + goto restart; + } } /* If we are currently idle, try to start the next message. */ |