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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7497EC19F2A for ; Wed, 10 Aug 2022 15:13:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233013AbiHJPN5 (ORCPT ); Wed, 10 Aug 2022 11:13:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233058AbiHJPNj (ORCPT ); Wed, 10 Aug 2022 11:13:39 -0400 Received: from mail-pl1-x62d.google.com (mail-pl1-x62d.google.com [IPv6:2607:f8b0:4864:20::62d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4DD47697C; Wed, 10 Aug 2022 08:13:37 -0700 (PDT) Received: by mail-pl1-x62d.google.com with SMTP id m2so14522368pls.4; Wed, 10 Aug 2022 08:13:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=iWaAjku+9DHBSIX7N6Ue4B+MVNq84IC+6QjMUqI3TB0=; b=Z/lxRlLLd8aSOe7UrBVwtoZHysAGXWomvjXyaFiZjFlvg93dIiptrkIXqv7ZwATWu0 qmjE8r7cc/WvmiTKV+QUmKKhDeZBxCQImUyh6qwf024lOWsEmiD1tW6FuaqxYYp+xzK6 kTiufGpumO4QQfOIiLh5ufB04SP5x8A1yXYEkUDyvDt3Bbly58OvgpZLhHQMSsZRK+QT n43tXwQyR1Lqrc5tp0nA+txpiYYEJqZX/++kbwD6RoUwxLpbAspZf9G0FVsLtgKID2PL nOVBKuClxVqbojihSI6uXE8Z8bDAhvPWm2TuwGiLhLqSVzaFHhfj3zVQc8Su3JkZtfvX PcUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=iWaAjku+9DHBSIX7N6Ue4B+MVNq84IC+6QjMUqI3TB0=; b=g5GocI94GwGBwtmZGtSKjPpCg14ZkD2TzY2c265ZdT45ZyPygiYhr5ZomWLbdO2EKm z8NVQPTfNo3mqpxRKUYhzkHX7gL1RAC6TgFDid+fRybD0aGokv91zcimDt3sj3FbtElW faJKnFzzWuVobLy272wM6EhlLaDaxHS+1CPolJ2tYKN5+8xnN0D3SR3JyFI9Df6H6o8j jdQGJBUXXlB6EdrMWXD/rSlP3Rhs0vUGqA6NLVeHXHHrOCKGMdWg2B/2FeoWEDO4v1Vg b7de/1+HdgAKiWoJEvd5sY0O+k/himJufSIc3Zh0jUbUcDJcTy4ro+eW2/NoJo1CR/l4 fzfw== X-Gm-Message-State: ACgBeo3BRkjBWOTO8JguYeah+gXnB8RaMWn8UEEdzWW/BtVb/8QSyw4s 6+Nn5VnMud4eNFoDZRROzPg= X-Google-Smtp-Source: AA6agR7n6vB1/D/uiMiv2j4fpjbh4qX+3s9kpMgqeuuspi0f2HG/KHRnTeGlLwIId1ZR6ew82E87sA== X-Received: by 2002:a17:902:c7c4:b0:16e:d968:6343 with SMTP id r4-20020a170902c7c400b0016ed9686343mr28264299pla.133.1660144417101; Wed, 10 Aug 2022 08:13:37 -0700 (PDT) Received: from vultr.guest ([2001:19f0:6001:5c3e:5400:4ff:fe19:c3bc]) by smtp.gmail.com with ESMTPSA id n129-20020a622787000000b0052dcbd87ae8sm2118339pfn.25.2022.08.10.08.13.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Aug 2022 08:13:36 -0700 (PDT) From: Yafang Shao To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, jolsa@kernel.org, hannes@cmpxchg.org, mhocko@kernel.org, roman.gushchin@linux.dev, shakeelb@google.com, songmuchun@bytedance.com, akpm@linux-foundation.org Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-mm@kvack.org, Yafang Shao Subject: [PATCH 01/15] bpf: Remove unneeded memset in queue_stack_map creation Date: Wed, 10 Aug 2022 15:13:08 +0000 Message-Id: <20220810151322.16163-2-laoar.shao@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220810151322.16163-1-laoar.shao@gmail.com> References: <20220810151322.16163-1-laoar.shao@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org __GFP_ZERO will clear the memory, so we don't need to memset it. Signed-off-by: Yafang Shao --- kernel/bpf/queue_stack_maps.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/bpf/queue_stack_maps.c b/kernel/bpf/queue_stack_maps.c index a1c0794..8a5e060 100644 --- a/kernel/bpf/queue_stack_maps.c +++ b/kernel/bpf/queue_stack_maps.c @@ -78,8 +78,6 @@ static struct bpf_map *queue_stack_map_alloc(union bpf_attr *attr) if (!qs) return ERR_PTR(-ENOMEM); - memset(qs, 0, sizeof(*qs)); - bpf_map_init_from_attr(&qs->map, attr); qs->size = size; -- 1.8.3.1