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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, T_DKIMWL_WL_HIGH,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 70069C004C9 for ; Tue, 7 May 2019 05:53:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 40D0820B7C for ; Tue, 7 May 2019 05:53:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557208430; bh=FOI1hJl4UfB1TMxwdCZjOju8tHMDWDcNCIaKPHdRmvM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=fzdt+vWvT0BwhchGffNnAyoLhihGrdKb0Sa/126tDSIZn5yDoIoBVRLMZckaCFbcM NVt/DEGjXfXifyHFjxrQ32KA2hxDSJXbIQep1wI806oUzm6VJPW0oplxGV7eTmBh+1 HA+9RxgDx6/Ft873D92oVKb1ivmpCVjp04F7xDR4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728876AbfEGFxq (ORCPT ); Tue, 7 May 2019 01:53:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:58420 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726851AbfEGFij (ORCPT ); Tue, 7 May 2019 01:38:39 -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 6B59420B7C; Tue, 7 May 2019 05:38:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557207518; bh=FOI1hJl4UfB1TMxwdCZjOju8tHMDWDcNCIaKPHdRmvM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pmoDVr5zdQh59nXyuIFPsX0gjMQPh8JA18/fwlf70TYYiokJlr/e8Nkj+8zzFuZ4z P9rFCQfSklPeMFnssaGLnYYLPq5SeoOaGB747lH7rKzaCNXWYqxantROOOYbkzy+uh p4FKKaXHqLqsS23hN4h6vc2nuP0zk/Y26naeoDgU= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Felix Fietkau , =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= , Johannes Berg , Sasha Levin , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 10/95] mac80211: fix memory accounting with A-MSDU aggregation Date: Tue, 7 May 2019 01:36:59 -0400 Message-Id: <20190507053826.31622-10-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190507053826.31622-1-sashal@kernel.org> References: <20190507053826.31622-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Felix Fietkau [ Upstream commit eb9b64e3a9f8483e6e54f4e03b2ae14ae5db2690 ] skb->truesize can change due to memory reallocation or when adding extra fragments. Adjust fq->memory_usage accordingly Signed-off-by: Felix Fietkau Acked-by: Toke Høiland-Jørgensen Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/tx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 305a4655f23e..09c7aa519ca8 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -3125,6 +3125,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, u8 max_subframes = sta->sta.max_amsdu_subframes; int max_frags = local->hw.max_tx_fragments; int max_amsdu_len = sta->sta.max_amsdu_len; + int orig_truesize; __be16 len; void *data; bool ret = false; @@ -3158,6 +3159,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, if (!head) goto out; + orig_truesize = head->truesize; orig_len = head->len; if (skb->len + head->len > max_amsdu_len) @@ -3212,6 +3214,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, *frag_tail = skb; out_recalc: + fq->memory_usage += head->truesize - orig_truesize; if (head->len != orig_len) { flow->backlog += head->len - orig_len; tin->backlog_bytes += head->len - orig_len; -- 2.20.1