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iwlwifi: Suppress noisy syslog messages when RF_KILL switch engaged

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When a station is associated with an AP and the RF_KILL switch is engaged,
numerous error messages were sent to the system log. The error messages
were the result of the failure(s) of the various submodules to perform
their tasks after the radios were disabled.

To resolve this situation, the messages were modified to use a new macro,
IWL_DEBUG_QUIET_RFKILL. This macro allows for the RF_KILL error messages
to be sent to the log provided that IWL_DEBUG is true and IWL_DL_RADIO
is '1'. For all other cases, the error messages resulting from an RFKILL
event will not be sent to the system log. Messages logged because of an
RFKILL will be tagged with the prefix '(RFKILL)' to clarify the cause of
the error.

Signed-off-by: Todd Previte <toddX.a.previte@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Todd Previte
2011-11-10 06:55:02 -08:00
committed by John W. Linville
parent 79d3eef891
commit b36b110c57
4 changed files with 25 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/net/wireless/iwlwifi/iwl-debug.h
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@@ -70,10 +70,25 @@ do { \
DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
} while (0)
#define IWL_DEBUG_QUIET_RFKILL(p, fmt, args...) \
do { \
if (!iwl_is_rfkill(p->shrd)) \
dev_printk(KERN_ERR, bus(p)->dev, "%c %s " fmt, \
(in_interrupt() ? 'I' : 'U'), __func__ , ##args); \
else if (iwl_get_debug_level(p->shrd) & IWL_DL_RADIO) \
dev_printk(KERN_ERR, bus(p)->dev, "(RFKILL) %c %s " fmt, \
(in_interrupt() ? 'I' : 'U'), __func__ , ##args); \
} while (0)
#else
#define IWL_DEBUG(m, level, fmt, args...)
#define IWL_DEBUG_LIMIT(m, level, fmt, args...)
#define iwl_print_hex_dump(m, level, p, len)
#define IWL_DEBUG_QUIET_RFKILL(p, fmt, args...) \
do { \
if (!iwl_is_rfkill(p->shrd)) \
IWL_ERR(p, fmt, ##args); \
} while (0)
#endif /* CONFIG_IWLWIFI_DEBUG */
#ifdef CONFIG_IWLWIFI_DEBUGFS