From patchwork Sun Mar 20 04:35:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linyu Yuan X-Patchwork-Id: 12786410 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 8B4A2C433F5 for ; Sun, 20 Mar 2022 04:35:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244695AbiCTEgg (ORCPT ); Sun, 20 Mar 2022 00:36:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235846AbiCTEgf (ORCPT ); Sun, 20 Mar 2022 00:36:35 -0400 Received: from alexa-out-sd-01.qualcomm.com (alexa-out-sd-01.qualcomm.com [199.106.114.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE101E0A3 for ; Sat, 19 Mar 2022 21:35:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1647750912; x=1679286912; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=tTKHbn2YkSFuSf1kyl7GAFGyOcLZ6lJR3YxU94f9m40=; b=e/lsdGefK7EhWRjr/ZcsJHWFk9eXg/pLEI7lNlAfUWmBsWoKtyuIvGV7 +e2w7ARm7VmliHqqCDZFYPUlW1GLgns8xnQ3SF6CUlKyLiGhDk2NaM48n IFljrZoGJ3tYmI2F1oVkFpUK+a9iVOhkR7XXsGtxj5dWzf9d4Ekf4EEN0 c=; Received: from unknown (HELO ironmsg-SD-alpha.qualcomm.com) ([10.53.140.30]) by alexa-out-sd-01.qualcomm.com with ESMTP; 19 Mar 2022 21:35:12 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg-SD-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Mar 2022 21:35:12 -0700 Received: from nalasex01b.na.qualcomm.com (10.47.209.197) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Sat, 19 Mar 2022 21:35:11 -0700 Received: from linyyuan-gv.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Sat, 19 Mar 2022 21:35:10 -0700 From: Linyu Yuan To: Greg Kroah-Hartman CC: , Jack Pham , "Linyu Yuan" Subject: [PATCH 0/4] usb: gadget: configfs: new trace events Date: Sun, 20 Mar 2022 12:35:00 +0800 Message-ID: <1647750904-6524-1-git-send-email-quic_linyyuan@quicinc.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Last year I try to add trace event support for usb gadget configfs [1], this time the idea is change a lot, the purpose is trace all user space operation to gadget configuration, include gadget and it's function. In usb gadget configfs, mainly user can do mkdir/rmdir a group, link/unlink a function, change gadget/function attributes, echo operation will touch a struct config_item. It only have one trace event entry which store string, provide several API which represent user operation and generate string from struct config_item. As it is different from last year change, start a new thread. [1] https://lore.kernel.org/linux-usb/1635229309-2821-1-git-send-email-quic_linyyuan@quicinc.com/ Linyu Yuan (4): usb: gadget: add trace event of configfs operation usb: gadget: add trace event of configfs group operation usb: gadget: add trace event of configfs link/unlink operation usb: gadget: add trace event of configfs write attributes operation drivers/usb/gadget/Makefile | 1 + drivers/usb/gadget/configfs.c | 188 +++++++++++++++++++++++++ drivers/usb/gadget/function/f_acm.c | 1 + drivers/usb/gadget/function/f_hid.c | 4 + drivers/usb/gadget/function/f_loopback.c | 4 + drivers/usb/gadget/function/f_mass_storage.c | 20 +++ drivers/usb/gadget/function/f_midi.c | 6 + drivers/usb/gadget/function/f_printer.c | 4 + drivers/usb/gadget/function/f_serial.c | 1 + drivers/usb/gadget/function/f_sourcesink.c | 16 +++ drivers/usb/gadget/function/f_uac1.c | 6 + drivers/usb/gadget/function/f_uac1_legacy.c | 4 + drivers/usb/gadget/function/f_uac2.c | 8 ++ drivers/usb/gadget/function/u_ether_configfs.h | 10 ++ drivers/usb/gadget/function/uvc_configfs.c | 42 ++++++ drivers/usb/gadget/trace.h | 39 +++++ include/linux/usb/composite.h | 18 +++ include/linux/usb/gadget_configfs.h | 4 + 18 files changed, 376 insertions(+) create mode 100644 drivers/usb/gadget/trace.h