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mac80211: remove unused IE pointers from parser 

There's no need to parse IEs that aren't used
so just remove them.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2013-03-27 14:27:01 +01:00
parent c5d54fbf0e
commit a6dfba841c
2 changed files with 0 additions and 28 deletions
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9
net/mac80211/ieee80211_i.h
View File

@ -1157,11 +1157,8 @@ struct ieee802_11_elems {
/* pointers to IEs */
const u8 *ssid;
const u8 *supp_rates;
const u8 *fh_params;
const u8 *ds_params;
const u8 *cf_params;
const struct ieee80211_tim_ie *tim;
const u8 *ibss_params;
const u8 *challenge;
const u8 *rsn;
const u8 *erp_info;
@ -1183,18 +1180,14 @@ struct ieee802_11_elems {
const struct ieee80211_channel_sw_ie *ch_switch_ie;
const u8 *country_elem;
const u8 *pwr_constr_elem;
const u8 *quiet_elem; /* first quite element */
const u8 *timeout_int;
const u8 *opmode_notif;
/* length of them, respectively */
u8 ssid_len;
u8 supp_rates_len;
u8 fh_params_len;
u8 ds_params_len;
u8 cf_params_len;
u8 tim_len;
u8 ibss_params_len;
u8 challenge_len;
u8 rsn_len;
u8 erp_info_len;
@ -1207,8 +1200,6 @@ struct ieee802_11_elems {
u8 prep_len;
u8 perr_len;
u8 country_elem_len;
u8 quiet_elem_len;
u8 num_of_quiet_elem; /* can be more the one */
u8 timeout_int_len;
/* whether a parse error occurred while retrieving these elements */

19
net/mac80211/util.c
View File

@ -738,18 +738,10 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
elems->supp_rates = pos;
elems->supp_rates_len = elen;
break;
case WLAN_EID_FH_PARAMS:
elems->fh_params = pos;
elems->fh_params_len = elen;
break;
case WLAN_EID_DS_PARAMS:
elems->ds_params = pos;
elems->ds_params_len = elen;
break;
case WLAN_EID_CF_PARAMS:
elems->cf_params = pos;
elems->cf_params_len = elen;
break;
case WLAN_EID_TIM:
if (elen >= sizeof(struct ieee80211_tim_ie)) {
elems->tim = (void *)pos;
@ -757,10 +749,6 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
} else
elem_parse_failed = true;
break;
case WLAN_EID_IBSS_PARAMS:
elems->ibss_params = pos;
elems->ibss_params_len = elen;
break;
case WLAN_EID_CHALLENGE:
elems->challenge = pos;
elems->challenge_len = elen;
@ -870,13 +858,6 @@ u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
}
elems->ch_switch_ie = (void *)pos;
break;
case WLAN_EID_QUIET:
if (!elems->quiet_elem) {
elems->quiet_elem = pos;
elems->quiet_elem_len = elen;
}
elems->num_of_quiet_elem++;
break;
case WLAN_EID_COUNTRY:
elems->country_elem = pos;
elems->country_elem_len = elen;