From patchwork Mon Dec 28 08:00:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Wang X-Patchwork-Id: 11990907 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 77D4CC433DB for ; Mon, 28 Dec 2020 08:02:19 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 81803207BC for ; Mon, 28 Dec 2020 08:02:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 81803207BC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=canonical.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 0BE541701; Mon, 28 Dec 2020 09:01:27 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 0BE541701 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1609142537; bh=BeN6tkAVYBBg3Gi7i3PsYukvsE0RdyyMq1RVcSGnQvQ=; h=From:To:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=Xc6Hc8772OscWU0kxUHXUefK82wTJldxTDDh6KpkBUcsMuJxiOXKnSaBFoZUopsmF thbHHS+Lpp9Gn8u44/ev5bn49xsPIUUpMSpz8265hclFphX+TjV72WRIdmPPaUllYs 3FKI3DGUsTizlXFldcA4ywlnWB9W0DYnPEn4s2YI= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id A6177F802A9; Mon, 28 Dec 2020 09:00:31 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 6A45DF80279; Mon, 28 Dec 2020 09:00:26 +0100 (CET) Received: from youngberry.canonical.com (youngberry.canonical.com [91.189.89.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 33852F80169 for ; Mon, 28 Dec 2020 09:00:20 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 33852F80169 Received: from [223.72.45.82] (helo=localhost.localdomain) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1ktnRy-0004UZ-N1; Mon, 28 Dec 2020 08:00:19 +0000 From: Hui Wang To: alsa-devel@alsa-project.org, tiwai@suse.de, perex@perex.cz, kai.vehmanen@linux.intel.com Subject: [RFC][PATCH v3 2/4] alsa: jack: adjust jack_kctl debugfs folder's name Date: Mon, 28 Dec 2020 16:00:01 +0800 Message-Id: <20201228080003.19127-3-hui.wang@canonical.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201228080003.19127-1-hui.wang@canonical.com> References: <20201228080003.19127-1-hui.wang@canonical.com> MIME-Version: 1.0 X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" We used jack_kctl->kctl.id as the folder's name, but there are some characters which are not suitable for foler's name, for example, a HDMI/DP audio jack id contains '/', ',', '=' and ' ', this patch will remove them from folder's name. Before applying patch, the folders look like: 'HDMI!DP,pcm=3 Jack' 'Headphone Jack' 'Mic Jack' After applying the patch, the folders look like: HDMIDPpcm3Jack HeadphoneJack MicJack Signed-off-by: Hui Wang --- sound/core/jack.c | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) diff --git a/sound/core/jack.c b/sound/core/jack.c index 0f232a806c3a..62e9215fa0f0 100644 --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -242,18 +242,36 @@ static const struct file_operations jackin_inject_fops = { .llseek = default_llseek, }; +/* The substrings in the jack's name but not suitable for folder's name */ +static const char * const dropped_chars[] = { + "/", "=", ",", " ", +}; + +static char *strremove(char *s, const char *c) +{ + char *p; + + while ((p = strstr(s, c))) { + *p = '\0'; + strcat(s, p+strlen(c)); + } + + return s; +} + static int snd_jack_debugfs_add_inject_node(struct snd_jack *jack, struct snd_jack_kctl *jack_kctl) { char *tname; + int i; - /* the folder's name can't contains '/', need to replace it with '!' - * as lib/kobject.c does - */ tname = kstrdup(jack_kctl->kctl->id.name, GFP_KERNEL); if (!tname) return -ENOMEM; - strreplace(tname, '/', '!'); + + for (i = 0; i < ARRAY_SIZE(dropped_chars); i++) + tname = strremove(tname, dropped_chars[i]); + jack_kctl->jack_debugfs_root = debugfs_create_dir(tname, jack->card->debugfs_root); kfree(tname);