diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl4965-base.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl4965-base.c | 52 |
1 files changed, 30 insertions, 22 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index b1a6e39f7821..5e1279263b22 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -48,8 +48,6 @@ #include <linux/netdevice.h> #include <linux/wireless.h> #include <linux/firmware.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/if_arp.h> @@ -1802,21 +1800,22 @@ static void iwl_unset_hw_setting(struct iwl_priv *priv) * return : set the bit for each supported rate insert in ie */ static u16 iwl_supported_rate_to_ie(u8 *ie, u16 supported_rate, - u16 basic_rate, int max_count) + u16 basic_rate, int *left) { u16 ret_rates = 0, bit; int i; - u8 *rates; - - rates = &(ie[1]); + u8 *cnt = ie; + u8 *rates = ie + 1; for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) { if (bit & supported_rate) { ret_rates |= bit; - rates[*ie] = iwl_rates[i].ieee | - ((bit & basic_rate) ? 0x80 : 0x00); - *ie = *ie + 1; - if (*ie >= max_count) + rates[*cnt] = iwl_rates[i].ieee | + ((bit & basic_rate) ? 0x80 : 0x00); + (*cnt)++; + (*left)--; + if ((*left <= 0) || + (*cnt >= IWL_SUPPORTED_RATES_IE_LEN)) break; } } @@ -1839,7 +1838,7 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv, { int len = 0; u8 *pos = NULL; - u16 ret_rates; + u16 active_rates, ret_rates, cck_rates; /* Make sure there is enough space for the probe request, * two mandatory IEs and the data */ @@ -1884,19 +1883,27 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv, left -= 2; if (left < 0) return 0; + /* ... fill it in... */ *pos++ = WLAN_EID_SUPP_RATES; *pos = 0; - ret_rates = priv->active_rate = priv->rates_mask; + + priv->active_rate = priv->rates_mask; + active_rates = priv->active_rate; priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; - iwl_supported_rate_to_ie(pos, priv->active_rate, - priv->active_rate_basic, left); + cck_rates = IWL_CCK_RATES_MASK & active_rates; + ret_rates = iwl_supported_rate_to_ie(pos, cck_rates, + priv->active_rate_basic, &left); + active_rates &= ~ret_rates; + + ret_rates = iwl_supported_rate_to_ie(pos, active_rates, + priv->active_rate_basic, &left); + active_rates &= ~ret_rates; + len += 2 + *pos; pos += (*pos) + 1; - ret_rates = ~ret_rates & priv->active_rate; - - if (ret_rates == 0) + if (active_rates == 0) goto fill_end; /* fill in supported extended rate */ @@ -1907,7 +1914,8 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv, /* ... fill it in... */ *pos++ = WLAN_EID_EXT_SUPP_RATES; *pos = 0; - iwl_supported_rate_to_ie(pos, ret_rates, priv->active_rate_basic, left); + iwl_supported_rate_to_ie(pos, active_rates, + priv->active_rate_basic, &left); if (*pos > 0) len += 2 + *pos; @@ -4494,13 +4502,13 @@ static u8 ratio2dB[100] = { * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ int iwl_calc_db_from_ratio(int sig_ratio) { - /* Anything above 1000:1 just report as 60 dB */ - if (sig_ratio > 1000) + /* 1000:1 or higher just report as 60 dB */ + if (sig_ratio >= 1000) return 60; - /* Above 100:1, divide by 10 and use table, + /* 100:1 or higher, divide by 10 and use table, * add 20 dB to make up for divide by 10 */ - if (sig_ratio > 100) + if (sig_ratio >= 100) return (20 + (int)ratio2dB[sig_ratio/10]); /* We shouldn't see this */ |