ath9k : Fix for displaying the channel number

In the ath9k debugging feature 'wiphy' the current channel used by the
station is incorrectly displayed.This is because the channels available
are sequentially mapped from numbers 0 to 37.This mapping cannot be
changed as the channel number is also used as an array index
          This fix solves the above problem by calculating the channel
number from center frequency.

Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index d65a896a421d6881fad42117dd7c4a127f22a98c..7a5932a6691a51c24a85aef266bb54787d9003e9 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -488,6 +488,8 @@ static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
                               size_t count, loff_t *ppos)
 {
        struct ath_softc *sc = file->private_data;
+       struct ath_wiphy *aphy = sc->pri_wiphy;
+       struct ieee80211_channel *chan = aphy->hw->conf.channel;
        char buf[512];
        unsigned int len = 0;
        int i;
@@ -498,7 +500,8 @@ static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
                        "primary: %s (%s chan=%d ht=%d)\n",
                        wiphy_name(sc->pri_wiphy->hw->wiphy),
                        ath_wiphy_state_str(sc->pri_wiphy->state),
-                       sc->pri_wiphy->chan_idx, sc->pri_wiphy->chan_is_ht);
+                       ieee80211_frequency_to_channel(chan->center_freq),
+                       aphy->chan_is_ht);
 
        put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
        put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
@@ -545,11 +548,13 @@ static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
                struct ath_wiphy *aphy = sc->sec_wiphy[i];
                if (aphy == NULL)
                        continue;
+               chan = aphy->hw->conf.channel;
                len += snprintf(buf + len, sizeof(buf) - len,
-                               "secondary: %s (%s chan=%d ht=%d)\n",
-                               wiphy_name(aphy->hw->wiphy),
-                               ath_wiphy_state_str(aphy->state),
-                               aphy->chan_idx, aphy->chan_is_ht);
+                       "secondary: %s (%s chan=%d ht=%d)\n",
+                       wiphy_name(aphy->hw->wiphy),
+                       ath_wiphy_state_str(aphy->state),
+                       ieee80211_frequency_to_channel(chan->center_freq),
+                       aphy->chan_is_ht);
        }
        if (len > sizeof(buf))
                len = sizeof(buf);