69 lines
2.1 KiB
Diff
69 lines
2.1 KiB
Diff
From: Stanislaw Gruszka <sgruszka@redhat.com>
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To: kernel@lists.fedoraproject.org, "John W. Linville" <linville@redhat.com>
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Subject: [PATCH 3/4 2.6.32.y] mac80211: do not wip out old supported rates
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Date: Fri, 11 Jun 2010 17:03:15 +0200
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Use old supported rates, if some buggy AP do not provide
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supported rates information element in managment frame.
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Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
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---
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net/mac80211/scan.c | 21 +++++++++++----------
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1 files changed, 11 insertions(+), 10 deletions(-)
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diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
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index fd6411d..169111a 100644
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--- a/net/mac80211/scan.c
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+++ b/net/mac80211/scan.c
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@@ -62,7 +62,7 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
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bool beacon)
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{
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struct ieee80211_bss *bss;
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- int clen;
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+ int clen, srlen;
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s32 signal = 0;
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if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
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@@ -94,23 +94,24 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
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if (bss->dtim_period == 0)
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bss->dtim_period = 1;
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- bss->supp_rates_len = 0;
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+ /* replace old supported rates if we get new values */
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+ srlen = 0;
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if (elems->supp_rates) {
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- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
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+ clen = IEEE80211_MAX_SUPP_RATES;
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if (clen > elems->supp_rates_len)
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clen = elems->supp_rates_len;
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- memcpy(&bss->supp_rates[bss->supp_rates_len], elems->supp_rates,
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- clen);
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- bss->supp_rates_len += clen;
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+ memcpy(bss->supp_rates, elems->supp_rates, clen);
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+ srlen += clen;
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}
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if (elems->ext_supp_rates) {
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- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
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+ clen = IEEE80211_MAX_SUPP_RATES - srlen;
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if (clen > elems->ext_supp_rates_len)
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clen = elems->ext_supp_rates_len;
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- memcpy(&bss->supp_rates[bss->supp_rates_len],
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- elems->ext_supp_rates, clen);
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- bss->supp_rates_len += clen;
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+ memcpy(bss->supp_rates + srlen, elems->ext_supp_rates, clen);
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+ srlen += clen;
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}
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+ if (srlen)
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+ bss->supp_rates_len = srlen;
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bss->wmm_used = elems->wmm_param || elems->wmm_info;
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--
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1.6.2.5
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_______________________________________________
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kernel mailing list
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kernel@lists.fedoraproject.org
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https://admin.fedoraproject.org/mailman/listinfo/kernel
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