From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B3024C0650E for ; Wed, 3 Jul 2019 13:38:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 872872080C for ; Wed, 3 Jul 2019 13:38:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726457AbfGCNia (ORCPT ); Wed, 3 Jul 2019 09:38:30 -0400 Received: from s3.sipsolutions.net ([144.76.43.62]:38374 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726217AbfGCNia (ORCPT ); Wed, 3 Jul 2019 09:38:30 -0400 Received: by sipsolutions.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1hifSv-0000Uu-7W; Wed, 03 Jul 2019 15:38:29 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 3/3] cfg80211: give all multi-BSSID BSS entries the same timestamp Date: Wed, 3 Jul 2019 15:38:23 +0200 Message-Id: <20190703133823.10530-3-johannes@sipsolutions.net> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20190703133823.10530-1-johannes@sipsolutions.net> References: <20190703133823.10530-1-johannes@sipsolutions.net> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg If we just read jiffies over and over again, a non-transmitting entry may have a newer timestamp than the transmitting one, leading to possible confusion on expiry. Give them all the same timestamp when creating them. Signed-off-by: Johannes Berg --- net/wireless/scan.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 186ae1bb510a..a98dabab557a 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -1368,6 +1368,7 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy, struct cfg80211_internal_bss tmp = {}, *res; int bss_type; bool signal_valid; + unsigned long ts; if (WARN_ON(!wiphy)) return NULL; @@ -1390,8 +1391,11 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy, tmp.ts_boottime = data->boottime_ns; if (non_tx_data) { tmp.pub.transmitted_bss = non_tx_data->tx_bss; + ts = bss_from_pub(non_tx_data->tx_bss)->ts; tmp.pub.bssid_index = non_tx_data->bssid_index; tmp.pub.max_bssid_indicator = non_tx_data->max_bssid_indicator; + } else { + ts = jiffies; } /* @@ -1425,8 +1429,7 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy, signal_valid = abs(data->chan->center_freq - channel->center_freq) <= wiphy->max_adj_channel_rssi_comp; - res = cfg80211_bss_update(wiphy_to_rdev(wiphy), &tmp, signal_valid, - jiffies); + res = cfg80211_bss_update(wiphy_to_rdev(wiphy), &tmp, signal_valid, ts); if (!res) return NULL; -- 2.17.2