commit e702d3cf29143327679ce2e2a60775eaf829f377
author Luis R. Rodriguez <lrodriguez@atheros.com> Thu Oct 21 19:17:04 2010 +0530
committer John W. Linville <linville@tuxdriver.com> Mon Nov 15 13:24:14 2010 -0500
tree 33cd8b0727a772c984d91797a78a2352845d6928
parent a65185367f9f876448f0f12ac09a673d20371efc

cfg80211: add debug print when processing a channel

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>

net/wireless/reg.c

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 6e7a9d8..5556c5f 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -728,6 +728,41 @@
 		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 @@
 		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 @@
 		return;
 	}
 
+	chan_reg_rule_print_dbg(chan, desired_bw_khz, reg_rule);
+
 	power_rule = &reg_rule->power_rule;
 	freq_range = &reg_rule->freq_range;