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=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 D7E83C433FE for ; Fri, 3 Sep 2021 11:49:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BDF6461051 for ; Fri, 3 Sep 2021 11:49:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235143AbhICLuC (ORCPT ); Fri, 3 Sep 2021 07:50:02 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:45250 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349000AbhICLtz (ORCPT ); Fri, 3 Sep 2021 07:49:55 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1630669736; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=Y+9ApvPbOLaFubh5UEepLh95vf9Gj/yPu0Pm5Sgp12Q=; b=notSZQP76xE02C91u8Kt/6z4q2XS/VEC+0XFi+yXUjywYQaqJhtIOMdkhP4eTH3ncWz92GxZ CnM89aTugV7e4mSuF+hdKoNieWFgyWb31UkfpRatQdyKlj6Jr1eEudC3Vpgq62fNVgZ05VD4 whSzNQ7Zh6KZJQNh/9xRq95H32s= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n01.prod.us-west-2.postgun.com with SMTP id 61320b98d15f4d68a276c3a5 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 03 Sep 2021 11:48:40 GMT Sender: wgong=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id AF455C4338F; Fri, 3 Sep 2021 11:48:40 +0000 (UTC) Received: from wgong-HP3-Z230-SFF-Workstation.qca.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: wgong) by smtp.codeaurora.org (Postfix) with ESMTPSA id 3C289C43617; Fri, 3 Sep 2021 11:48:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org 3C289C43617 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org From: Wen Gong To: johannes@sipsolutions.net, ath11k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, wgong@codeaurora.org Subject: [PATCH v3 8/9] mac80211: use ieee802_11_parse_elems() to find ies instead of ieee80211_bss_get_ie() Date: Fri, 3 Sep 2021 07:48:20 -0400 Message-Id: <20210903114821.23346-9-wgong@codeaurora.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210903114821.23346-1-wgong@codeaurora.org> References: <20210903114821.23346-1-wgong@codeaurora.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org In function ieee80211_prep_channel(), it has some ieee80211_bss_get_ie() and cfg80211_find_ext_ie() to get the IE, this is to use another function ieee802_11_parse_elems() to get all the IEs in one time. Signed-off-by: Wen Gong --- net/mac80211/mlme.c | 40 ++++++++++++++++++++++++---------------- 1 file changed, 24 insertions(+), 16 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 2480bd0577bb..6b32cdd590cd 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -5001,10 +5001,22 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; bool is_5ghz = cbss->channel->band == NL80211_BAND_5GHZ; struct ieee80211_bss *bss = (void *)cbss->priv; + struct ieee802_11_elems *elems; + const struct cfg80211_bss_ies *ies; int ret; u32 i; bool have_80mhz; + elems = kzalloc(sizeof(*elems), GFP_KERNEL); + if (!elems) + return -ENOMEM; + + rcu_read_lock(); + + ies = rcu_dereference(cbss->ies); + ieee802_11_parse_elems(ies->data, ies->len, false, elems, + NULL, NULL); + sband = local->hw.wiphy->bands[cbss->channel->band]; ifmgd->flags &= ~(IEEE80211_STA_DISABLE_40MHZ | @@ -5026,16 +5038,14 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, if (!ieee80211_get_he_sta_cap(sband)) ifmgd->flags |= IEEE80211_STA_DISABLE_HE; - rcu_read_lock(); - if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && !is_6ghz) { const u8 *ht_oper_ie, *ht_cap_ie; - ht_oper_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_OPERATION); + ht_oper_ie = ((const u8 *)elems->ht_operation) - 2; if (ht_oper_ie && ht_oper_ie[1] >= sizeof(*ht_oper)) ht_oper = (void *)(ht_oper_ie + 2); - ht_cap_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_CAPABILITY); + ht_cap_ie = ((const u8 *)elems->ht_cap_elem) - 2; if (ht_cap_ie && ht_cap_ie[1] >= sizeof(*ht_cap)) ht_cap = (void *)(ht_cap_ie + 2); @@ -5048,8 +5058,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) && !is_6ghz) { const u8 *vht_oper_ie, *vht_cap; - vht_oper_ie = ieee80211_bss_get_ie(cbss, - WLAN_EID_VHT_OPERATION); + vht_oper_ie = ((const u8 *)elems->vht_operation) - 2; if (vht_oper_ie && vht_oper_ie[1] >= sizeof(*vht_oper)) vht_oper = (void *)(vht_oper_ie + 2); if (vht_oper && !ht_oper) { @@ -5061,7 +5070,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, ifmgd->flags |= IEEE80211_STA_DISABLE_HE; } - vht_cap = ieee80211_bss_get_ie(cbss, WLAN_EID_VHT_CAPABILITY); + vht_cap = ((const u8 *)elems->vht_cap_elem) - 2; if (!vht_cap || vht_cap[1] < sizeof(struct ieee80211_vht_cap)) { ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; vht_oper = NULL; @@ -5069,12 +5078,9 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, } if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) { - const struct cfg80211_bss_ies *ies; const u8 *he_oper_ie; - ies = rcu_dereference(cbss->ies); - he_oper_ie = cfg80211_find_ext_ie(WLAN_EID_EXT_HE_OPERATION, - ies->data, ies->len); + he_oper_ie = ((const u8 *)elems->he_operation) - 3; if (he_oper_ie && he_oper_ie[1] >= ieee80211_he_oper_size(&he_oper_ie[3])) he_oper = (void *)(he_oper_ie + 3); @@ -5102,8 +5108,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, if (sband->band == NL80211_BAND_S1GHZ) { const u8 *s1g_oper_ie; - s1g_oper_ie = ieee80211_bss_get_ie(cbss, - WLAN_EID_S1G_OPERATION); + s1g_oper_ie = ((const u8 *)elems->s1g_oper) - 2; if (s1g_oper_ie && s1g_oper_ie[1] >= sizeof(*s1g_oper)) s1g_oper = (void *)(s1g_oper_ie + 2); else @@ -5125,7 +5130,8 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, if (ifmgd->flags & IEEE80211_STA_DISABLE_HE && is_6ghz) { sdata_info(sdata, "Rejecting non-HE 6/7 GHz connection"); - return -EINVAL; + ret = -EINVAL; + goto out_no_lock; } /* will change later if needed */ @@ -5143,15 +5149,17 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, /* don't downgrade for 5 and 10 MHz channels, though. */ if (chandef.width == NL80211_CHAN_WIDTH_5 || chandef.width == NL80211_CHAN_WIDTH_10) - goto out; + goto out_lock; while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) { ifmgd->flags |= ieee80211_chandef_downgrade(&chandef); ret = ieee80211_vif_use_channel(sdata, &chandef, IEEE80211_CHANCTX_SHARED); } - out: + out_lock: mutex_unlock(&local->mtx); + out_no_lock: + kfree(elems); return ret; } -- 2.31.1 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 F3D4DC433F5 for ; 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Fri, 3 Sep 2021 11:48:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org 3C289C43617 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org From: Wen Gong To: johannes@sipsolutions.net, ath11k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, wgong@codeaurora.org Subject: [PATCH v3 8/9] mac80211: use ieee802_11_parse_elems() to find ies instead of ieee80211_bss_get_ie() Date: Fri, 3 Sep 2021 07:48:20 -0400 Message-Id: <20210903114821.23346-9-wgong@codeaurora.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210903114821.23346-1-wgong@codeaurora.org> References: <20210903114821.23346-1-wgong@codeaurora.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210903_044854_614364_3C3ADD62 X-CRM114-Status: GOOD ( 14.69 ) X-BeenThere: ath11k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath11k" Errors-To: ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org In function ieee80211_prep_channel(), it has some ieee80211_bss_get_ie() and cfg80211_find_ext_ie() to get the IE, this is to use another function ieee802_11_parse_elems() to get all the IEs in one time. Signed-off-by: Wen Gong --- net/mac80211/mlme.c | 40 ++++++++++++++++++++++++---------------- 1 file changed, 24 insertions(+), 16 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 2480bd0577bb..6b32cdd590cd 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -5001,10 +5001,22 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; bool is_5ghz = cbss->channel->band == NL80211_BAND_5GHZ; struct ieee80211_bss *bss = (void *)cbss->priv; + struct ieee802_11_elems *elems; + const struct cfg80211_bss_ies *ies; int ret; u32 i; bool have_80mhz; + elems = kzalloc(sizeof(*elems), GFP_KERNEL); + if (!elems) + return -ENOMEM; + + rcu_read_lock(); + + ies = rcu_dereference(cbss->ies); + ieee802_11_parse_elems(ies->data, ies->len, false, elems, + NULL, NULL); + sband = local->hw.wiphy->bands[cbss->channel->band]; ifmgd->flags &= ~(IEEE80211_STA_DISABLE_40MHZ | @@ -5026,16 +5038,14 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, if (!ieee80211_get_he_sta_cap(sband)) ifmgd->flags |= IEEE80211_STA_DISABLE_HE; - rcu_read_lock(); - if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && !is_6ghz) { const u8 *ht_oper_ie, *ht_cap_ie; - ht_oper_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_OPERATION); + ht_oper_ie = ((const u8 *)elems->ht_operation) - 2; if (ht_oper_ie && ht_oper_ie[1] >= sizeof(*ht_oper)) ht_oper = (void *)(ht_oper_ie + 2); - ht_cap_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_CAPABILITY); + ht_cap_ie = ((const u8 *)elems->ht_cap_elem) - 2; if (ht_cap_ie && ht_cap_ie[1] >= sizeof(*ht_cap)) ht_cap = (void *)(ht_cap_ie + 2); @@ -5048,8 +5058,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) && !is_6ghz) { const u8 *vht_oper_ie, *vht_cap; - vht_oper_ie = ieee80211_bss_get_ie(cbss, - WLAN_EID_VHT_OPERATION); + vht_oper_ie = ((const u8 *)elems->vht_operation) - 2; if (vht_oper_ie && vht_oper_ie[1] >= sizeof(*vht_oper)) vht_oper = (void *)(vht_oper_ie + 2); if (vht_oper && !ht_oper) { @@ -5061,7 +5070,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, ifmgd->flags |= IEEE80211_STA_DISABLE_HE; } - vht_cap = ieee80211_bss_get_ie(cbss, WLAN_EID_VHT_CAPABILITY); + vht_cap = ((const u8 *)elems->vht_cap_elem) - 2; if (!vht_cap || vht_cap[1] < sizeof(struct ieee80211_vht_cap)) { ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; vht_oper = NULL; @@ -5069,12 +5078,9 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, } if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) { - const struct cfg80211_bss_ies *ies; const u8 *he_oper_ie; - ies = rcu_dereference(cbss->ies); - he_oper_ie = cfg80211_find_ext_ie(WLAN_EID_EXT_HE_OPERATION, - ies->data, ies->len); + he_oper_ie = ((const u8 *)elems->he_operation) - 3; if (he_oper_ie && he_oper_ie[1] >= ieee80211_he_oper_size(&he_oper_ie[3])) he_oper = (void *)(he_oper_ie + 3); @@ -5102,8 +5108,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, if (sband->band == NL80211_BAND_S1GHZ) { const u8 *s1g_oper_ie; - s1g_oper_ie = ieee80211_bss_get_ie(cbss, - WLAN_EID_S1G_OPERATION); + s1g_oper_ie = ((const u8 *)elems->s1g_oper) - 2; if (s1g_oper_ie && s1g_oper_ie[1] >= sizeof(*s1g_oper)) s1g_oper = (void *)(s1g_oper_ie + 2); else @@ -5125,7 +5130,8 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, if (ifmgd->flags & IEEE80211_STA_DISABLE_HE && is_6ghz) { sdata_info(sdata, "Rejecting non-HE 6/7 GHz connection"); - return -EINVAL; + ret = -EINVAL; + goto out_no_lock; } /* will change later if needed */ @@ -5143,15 +5149,17 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, /* don't downgrade for 5 and 10 MHz channels, though. */ if (chandef.width == NL80211_CHAN_WIDTH_5 || chandef.width == NL80211_CHAN_WIDTH_10) - goto out; + goto out_lock; while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) { ifmgd->flags |= ieee80211_chandef_downgrade(&chandef); ret = ieee80211_vif_use_channel(sdata, &chandef, IEEE80211_CHANCTX_SHARED); } - out: + out_lock: mutex_unlock(&local->mtx); + out_no_lock: + kfree(elems); return ret; } -- 2.31.1 -- ath11k mailing list ath11k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath11k