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| author | Johannes Berg <johannes.berg@intel.com> | 2021-09-30 13:11:30 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2021-10-21 17:01:20 +0200 |
| commit | a3eca81792977954b5beb19bc05fd1b8f859b856 (patch) | |
| tree | 557c78930000b4dc2e6ebd07ee83848d3560b9f7 /net | |
| parent | 153e2a11c99b7382597614ddb995618c22aa1b5f (diff) | |
| download | linux-a3eca81792977954b5beb19bc05fd1b8f859b856.tar.gz linux-a3eca81792977954b5beb19bc05fd1b8f859b856.tar.bz2 linux-a3eca81792977954b5beb19bc05fd1b8f859b856.zip | |
cfg80211: scan: use element finding functions in easy cases
There are a few easy cases where we only check for NULL or
have just simple use of the result, this can be done with
the element finding functions instead.
Link: https://lore.kernel.org/r/20210930131130.f27c8a7ec264.Iadb03c4307e9216e080ce513e8ad4048cd020b25@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/wireless/scan.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 11c68b159324..0273f20291c4 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -383,7 +383,7 @@ static bool is_bss(struct cfg80211_bss *a, const u8 *bssid, const u8 *ssid, size_t ssid_len) { const struct cfg80211_bss_ies *ies; - const u8 *ssidie; + const struct element *ssid_elem; if (bssid && !ether_addr_equal(a->bssid, bssid)) return false; @@ -394,12 +394,12 @@ static bool is_bss(struct cfg80211_bss *a, const u8 *bssid, ies = rcu_access_pointer(a->ies); if (!ies) return false; - ssidie = cfg80211_find_ie(WLAN_EID_SSID, ies->data, ies->len); - if (!ssidie) + ssid_elem = cfg80211_find_elem(WLAN_EID_SSID, ies->data, ies->len); + if (!ssid_elem) return false; - if (ssidie[1] != ssid_len) + if (ssid_elem->datalen != ssid_len) return false; - return memcmp(ssidie + 2, ssid, ssid_len) == 0; + return memcmp(ssid_elem->data, ssid, ssid_len) == 0; } static int @@ -2072,12 +2072,12 @@ static void cfg80211_parse_mbssid_data(struct wiphy *wiphy, if (!non_tx_data) return; - if (!cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen)) + if (!cfg80211_find_elem(WLAN_EID_MULTIPLE_BSSID, ie, ielen)) return; if (!wiphy->support_mbssid) return; if (wiphy->support_only_he_mbssid && - !cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen)) + !cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen)) return; new_ie = kmalloc(IEEE80211_MAX_DATA_LEN, gfp); @@ -2444,10 +2444,10 @@ cfg80211_inform_bss_frame_data(struct wiphy *wiphy, res = cfg80211_inform_single_bss_frame_data(wiphy, data, mgmt, len, gfp); if (!res || !wiphy->support_mbssid || - !cfg80211_find_ie(WLAN_EID_MULTIPLE_BSSID, ie, ielen)) + !cfg80211_find_elem(WLAN_EID_MULTIPLE_BSSID, ie, ielen)) return res; if (wiphy->support_only_he_mbssid && - !cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen)) + !cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, ie, ielen)) return res; non_tx_data.tx_bss = res; |