iwlwifi: mvm: slightly clean up rs_fw_set_supp_rates()

The "supp" variable doesn't need to be unsigned long, only
"tmp" is used with for_each_set_bit(). "supp" should just
be a u16, since that's how it's sent to the firmware.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210205110447.762e50704a39.I014bc7898f90c734f8e9be2a3efaf9bf8b7db6db@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
index 490a561..8772b65 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
@@ -248,14 +248,13 @@ static void rs_fw_set_supp_rates(struct ieee80211_sta *sta,
                                 struct iwl_tlc_config_cmd *cmd)
 {
        int i;
-       unsigned long tmp;
-       unsigned long supp; /* must be unsigned long for for_each_set_bit */
+       u16 supp = 0;
+       unsigned long tmp; /* must be unsigned long for for_each_set_bit */
        const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
        const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
        const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;
 
        /* non HT rates */
-       supp = 0;
        tmp = sta->supp_rates[sband->band];
        for_each_set_bit(i, &tmp, BITS_PER_LONG)
                supp |= BIT(sband->bitrates[i].hw_value);