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authorWey-Yi Guy <wey-yi.w.guy@intel.com>2009-11-20 12:05:07 -0800
committerJohn W. Linville <linville@tuxdriver.com>2009-11-23 17:05:37 -0500
commitc341ddb283b9e1a6d217e73fa36738629ca8f4fb (patch)
tree38c9d421c4751a5ca7964a7c7e35043033b7a98e /drivers/net/wireless/iwlwifi/iwl-debugfs.c
parent644c77f0cfa333e58fd4a09450434e89a52d8931 (diff)
iwlwifi: print limited number of event log when uCode error
To help iwlagn uCode debugging, event log will dump to syslog when driver detect uCode error occurred, but this only happen when compile with CONFIG_IWLWIFI_DEBUG and debug flag is enabled; which is not always the case. Also, there is another problem, if the flag is set, the entire event log buffer will be dump to syslog, it can flood the syslog and make it very difficult to debug the problem. Change the default to only dump last 20 entries of event log to syslog unless the following condition meets: 1. both compile with CONFIG_IWLWIFI_DEBUG and debug flag is enabled, and then dump the entire event buffer to syslog. 2. dump event log request from debugfs Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Acked-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-debugfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 5adf0b60620..21e0f6699da 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -436,7 +436,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
if (sscanf(buf, "%d", &event_log_flag) != 1)
return -EFAULT;
if (event_log_flag == 1)
- priv->cfg->ops->lib->dump_nic_event_log(priv);
+ priv->cfg->ops->lib->dump_nic_event_log(priv, true);
return count;
}