mac80211: constify IE parsing

Make all the parsed IE pointers const, and propagate
the change to all the users etc.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 8 insertions, 7 deletions

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 05b229e3b226..7a8cd789e487 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1041,10 +1041,10 @@ static void ieee80211_chswitch_timer(unsigned long data)
         ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
 }
 
-void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
-                                      struct ieee80211_channel_sw_ie *sw_elem,
-                                      struct ieee80211_bss *bss,
-                                      u64 timestamp)
+void
+ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+                                 const struct ieee80211_channel_sw_ie *sw_elem,
+                                 struct ieee80211_bss *bss, u64 timestamp)
 {
         struct cfg80211_bss *cbss =
                 container_of((void *)bss, struct cfg80211_bss, priv);
@@ -1479,13 +1479,14 @@ void ieee80211_dfs_cac_timer_work(struct work_struct *work)
 /* MLME */
 static bool ieee80211_sta_wmm_params(struct ieee80211_local *local,
                                      struct ieee80211_sub_if_data *sdata,
-                                     u8 *wmm_param, size_t wmm_param_len)
+                                     const u8 *wmm_param, size_t wmm_param_len)
 {
         struct ieee80211_tx_queue_params params;
         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
         size_t left;
         int count;
-        u8 *pos, uapsd_queues = 0;
+        const u8 *pos;
+        u8 uapsd_queues = 0;
 
         if (!local->ops->conf_tx)
                 return false;
@@ -2670,7 +2671,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
                 need_ps = sdata->u.mgd.associated && !sdata->u.mgd.dtim_period;
 
                 if (elems->tim && !elems->parse_error) {
-                        struct ieee80211_tim_ie *tim_ie = elems->tim;
+                        const struct ieee80211_tim_ie *tim_ie = elems->tim;
                         sdata->u.mgd.dtim_period = tim_ie->dtim_period;
                 }
         }