From patchwork Tue Feb 8 07:28:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Menglong Dong X-Patchwork-Id: 12738251 X-Patchwork-Delegate: kuba@kernel.org 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 A849EC433F5 for ; Tue, 8 Feb 2022 07:29:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348164AbiBHH3N (ORCPT ); Tue, 8 Feb 2022 02:29:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58010 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348202AbiBHH3L (ORCPT ); Tue, 8 Feb 2022 02:29:11 -0500 Received: from mail-pf1-x443.google.com (mail-pf1-x443.google.com [IPv6:2607:f8b0:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8AA9C03FECC; Mon, 7 Feb 2022 23:29:10 -0800 (PST) Received: by mail-pf1-x443.google.com with SMTP id z35so355960pfw.2; Mon, 07 Feb 2022 23:29:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=OHmI69f2zbi3ypl2upS6FscMcBrriYn6MPvaNo5sJGs=; b=MB+r1RvSi+Ci8DXYcxwfiaAtJlKYeCrCx7rIGAvunVNqQtMxuQNoypQRXuRf3j1gOJ ctWyutjhxjzUJ9HVEKUPMdSqGoq4Jj0OTQDDxBUjS8qX3RXvNyDqem+GlaRm1hCGHLD5 J61AmQSnGo/HB+Ioo41Ew0zUAR4Rq3/MmHyDICOz+IvZ8h0EcM1RLP9Y4x1FcQGMSXuN nKeN8WoS6otvOlGZ2xDoDisnr8G1NkllUOU6bJRz1QZCl9jCHgEOP7mrTvxJ+a7aROC6 /tqfxtq6QYVGy3BRO9OL8pObmc2G8/l3CVCbV6ma4+CEOHTDQcsSSFmFMlriMr8wK1M6 nfig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=OHmI69f2zbi3ypl2upS6FscMcBrriYn6MPvaNo5sJGs=; b=nwI5TvwkKiltEAt/By0XlS5hjVICTEGNLmx66fXTUxn23b2dTjiwckzLr9tN/RkFQX RmT9p9cdJxUF+mSKQhHg47pJ0mp4UN9eSlEmqcN4PK/qZgyQyMOeWckw7SncAzYykAir d034//2TXw64e49azv2L5ylbEi7PiIEZpjNoVA6xiTbV1va46+oT5sBMfDCF29mcUGdL tY6D7S77X9iRw8OzRycwkeZSi0AZIbg4N43jQ2oacmN31vnoMegwl84VJ8LFc+1gppoJ 4IZVq4ZCoXkI4oK+5VwNS8Z7mdpGchE3CN6CoQod5Cp3/hVky8BON8JHeKtO1MzeUIr5 w1yw== X-Gm-Message-State: AOAM530CMnE+Z/ko2v2Tq/bX6otJOKQT8XkFm4fZ2nYEYpS03jhXt1+F LZkJn4PE20wnq5XS+zE+ans= X-Google-Smtp-Source: ABdhPJzld/ICy+U12WKUrj0achNoAKH67ahuKuRe+IDCCTVUEj9QoSII2LtGo239S3BcKGqJhjJ4+w== X-Received: by 2002:a63:475e:: with SMTP id w30mr2531541pgk.175.1644305350363; Mon, 07 Feb 2022 23:29:10 -0800 (PST) Received: from localhost.localdomain ([43.132.141.8]) by smtp.gmail.com with ESMTPSA id n37sm435675pgl.48.2022.02.07.23.29.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Feb 2022 23:29:09 -0800 (PST) From: menglong8.dong@gmail.com X-Google-Original-From: imagedong@tencent.com To: rostedt@goodmis.org, idosch@idosch.org Cc: mingo@redhat.com, nhorman@tuxdriver.com, davem@davemloft.net, kuba@kernel.org, imagedong@tencent.com, dsahern@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH net-next 1/2] net: skb: introduce SKB_DR_MAX_LEN Date: Tue, 8 Feb 2022 15:28:35 +0800 Message-Id: <20220208072836.3540192-2-imagedong@tencent.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220208072836.3540192-1-imagedong@tencent.com> References: <20220208072836.3540192-1-imagedong@tencent.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Menglong Dong Introduce 'SKB_DR_MAX_LEN' to define the max length of drop reasons. 32 should be enough, as the current longest reason is 'UNICAST_IN_L2_MULTICAST'. Signed-off-by: Menglong Dong --- include/trace/events/skb.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h index cfcfd26399f7..920adcd564bc 100644 --- a/include/trace/events/skb.h +++ b/include/trace/events/skb.h @@ -9,6 +9,11 @@ #include #include +/* max string length of drop reason. We use 'SKB_DR_' as the prefix to + * make it distinct from 'enum skb_drop_reason' + */ +#define SKB_DR_MAX_LEN 32 + #define TRACE_SKB_DROP_REASON \ EM(SKB_DROP_REASON_NOT_SPECIFIED, NOT_SPECIFIED) \ EM(SKB_DROP_REASON_NO_SOCKET, NO_SOCKET) \