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cfg80211: add debug print when processing a channel

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In the worst case you are seeing really odd things you want
more information than what is provided right now, for those
that insist and want debug info through CONFIG_CFG80211_REG_DEBUG
provide a print of when we are processing a channel and with what
regulatory rule.

Cc: Easwar Krishnan <easwar.krishnan@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2010-10-21 19:17:04 +05:30 committed by John W. Linville
parent a65185367f
commit e702d3cf29
1 changed files with 39 additions and 0 deletions
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39
net/wireless/reg.c
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@ -728,6 +728,41 @@ static const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
return "Set by bug";
}
}
static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
u32 desired_bw_khz,
const struct ieee80211_reg_rule *reg_rule)
{
const struct ieee80211_power_rule *power_rule;
const struct ieee80211_freq_range *freq_range;
char max_antenna_gain[32];
power_rule = &reg_rule->power_rule;
freq_range = &reg_rule->freq_range;
if (!power_rule->max_antenna_gain)
snprintf(max_antenna_gain, 32, "N/A");
else
snprintf(max_antenna_gain, 32, "%d", power_rule->max_antenna_gain);
REG_DBG_PRINT("cfg80211: Updating information on frequency %d MHz "
"for %d a MHz width channel with regulatory rule:\n",
chan->center_freq,
KHZ_TO_MHZ(desired_bw_khz));
REG_DBG_PRINT("cfg80211: %d KHz - %d KHz @ KHz), (%s mBi, %d mBm)\n",
freq_range->start_freq_khz,
freq_range->end_freq_khz,
max_antenna_gain,
power_rule->max_eirp);
}
#else
static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
u32 desired_bw_khz,
const struct ieee80211_reg_rule *reg_rule)
{
return;
}
#endif
/*
@ -790,6 +825,8 @@ static void handle_channel(struct wiphy *wiphy,
return;
}
chan_reg_rule_print_dbg(chan, desired_bw_khz, reg_rule);
power_rule = &reg_rule->power_rule;
freq_range = &reg_rule->freq_range;
@ -1134,6 +1171,8 @@ static void handle_channel_custom(struct wiphy *wiphy,
return;
}
chan_reg_rule_print_dbg(chan, desired_bw_khz, reg_rule);
power_rule = &reg_rule->power_rule;
freq_range = &reg_rule->freq_range;