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Commit c1608435 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "cfg80211: fix and clean up cfg80211_gen_new_bssid()"

parents 18246764 0cd606d9
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+8 −10
Original line number Diff line number Diff line
@@ -5266,22 +5266,20 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 * @bssid: transmitter BSSID
 * @max_bssid: max BSSID indicator, taken from Multiple BSSID element
 * @mbssid_index: BSSID index, taken from Multiple BSSID index element
 * @new_bssid_addr: address of the resulting BSSID
 * @new_bssid: calculated nontransmitted BSSID
 */
static inline void cfg80211_gen_new_bssid(const u8 *bssid, u8 max_bssid,
					  u8 mbssid_index, u8 *new_bssid_addr)
					  u8 mbssid_index, u8 *new_bssid)
{
	u64 bssid_tmp, new_bssid;
	u64 lsb_n;
	u64 bssid_u64 = ether_addr_to_u64(bssid);
	u64 mask = GENMASK_ULL(max_bssid - 1, 0);
	u64 new_bssid_u64;

	bssid_tmp = ether_addr_to_u64(bssid);
	new_bssid_u64 = bssid_u64 & ~mask;

	lsb_n = bssid_tmp & ((1 << max_bssid) - 1);
	new_bssid = bssid_tmp;
	new_bssid &= ~((1 << max_bssid) - 1);
	new_bssid |= (lsb_n + mbssid_index) % (1 << max_bssid);
	new_bssid_u64 |= ((bssid_u64 & mask) + mbssid_index) & mask;

	u64_to_ether_addr(new_bssid, new_bssid_addr);
	u64_to_ether_addr(new_bssid_u64, new_bssid);
}

/**