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=-13.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 A9D9CC2D0A8 for ; Tue, 29 Sep 2020 01:33:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6DC632075A for ; Tue, 29 Sep 2020 01:33:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601343215; bh=brp7bKmkwE5VDkgoa+MU6Rrefw8r8r9J3NGC26UiEVE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=C9EIHZ38qhhpxit9xtjqGG4GE+OmbZYwr5yb6lvr5y5vs3LDvjyWYGzmdFw9OUCZv fFf00fnqql0uacUfHnBhL0Thk0ZcTae9gP1YZ8yAsZU+NnKy7R36cwhfhcV2fKQNOz liUxicwv300+nFDvFEbp55sWZJIZtvB6IHeVQMoo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728017AbgI2Bdd (ORCPT ); Mon, 28 Sep 2020 21:33:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:41812 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727755AbgI2BcH (ORCPT ); Mon, 28 Sep 2020 21:32:07 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BCA57221F0; Tue, 29 Sep 2020 01:31:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1601343114; bh=brp7bKmkwE5VDkgoa+MU6Rrefw8r8r9J3NGC26UiEVE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kbN9kK+ggav4YXXL8AJlwvlZ7EZc9oRCKmhnK9LEuY7nti8EI3RFJCItjbtioG8Gd 6ZnS1VpEv8/N1Fy3x7PCpZFUSKWRuxcScbPJrkktFdtPUYSvftkEgaZ1t+j4EnEsOj /kHVhRsqZy+M0x3hMyj8KgG9hBD8iVRlpaAJLs2Y= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Felix Fietkau , Johannes Berg , Sasha Levin , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 7/9] mac80211: do not allow bigger VHT MPDUs than the hardware supports Date: Mon, 28 Sep 2020 21:31:42 -0400 Message-Id: <20200929013144.2406985-7-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200929013144.2406985-1-sashal@kernel.org> References: <20200929013144.2406985-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Felix Fietkau [ Upstream commit 3bd5c7a28a7c3aba07a2d300d43f8e988809e147 ] Limit maximum VHT MPDU size by local capability. Signed-off-by: Felix Fietkau Link: https://lore.kernel.org/r/20200917125031.45009-1-nbd@nbd.name Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/vht.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index 19ec2189d3acb..502b3fbb3b0f4 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -170,10 +170,7 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, /* take some capabilities as-is */ cap_info = le32_to_cpu(vht_cap_ie->vht_cap_info); vht_cap->cap = cap_info; - vht_cap->cap &= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 | - IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | - IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | - IEEE80211_VHT_CAP_RXLDPC | + vht_cap->cap &= IEEE80211_VHT_CAP_RXLDPC | IEEE80211_VHT_CAP_VHT_TXOP_PS | IEEE80211_VHT_CAP_HTC_VHT | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | @@ -182,6 +179,9 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN; + vht_cap->cap |= min_t(u32, cap_info & IEEE80211_VHT_CAP_MAX_MPDU_MASK, + own_cap.cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK); + /* and some based on our own capabilities */ switch (own_cap.cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: -- 2.25.1