From patchwork Sun Mar 19 04:47:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lizhe X-Patchwork-Id: 665204 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 1CA25C6FD1C for ; Mon, 20 Mar 2023 19:31:22 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 3BF0F836; Mon, 20 Mar 2023 20:30:30 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 3BF0F836 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1679340680; bh=AGShxNVJA+1dbrHP5QVgbxOuKEpbrCaUFfHwKz3RQlA=; h=From:To:Subject:Date:CC:List-Id:List-Archive:List-Help:List-Owner: List-Post:List-Subscribe:List-Unsubscribe:From; b=MIxwCeKDobvwt89PymrreYb4PsUXrMUNPwZNLWB2EBbiAmV2DCmEl46vD0TFnnWak aZi+sIturOHvxKtdVoxsR2/PQtsCQGPfDrSaSwzArlWsIBRWo3pwmBrnR2q6ttscUE 9SbAnYWNjzhHdlBwGcwO9tospX2S+M2ddlWAG0j0= Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 62055F80563; Mon, 20 Mar 2023 20:28:41 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id AF9DAF8027B; Sun, 19 Mar 2023 05:48:11 +0100 (CET) Received: from m12.mail.163.com (m12.mail.163.com [220.181.12.214]) by alsa1.perex.cz (Postfix) with ESMTP id 14F16F80093 for ; Sun, 19 Mar 2023 05:48:02 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 14F16F80093 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key, unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256 header.s=s110527 header.b=on2MgYbt DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=3Prsu 7D2KQBP4G5c2iSTA7jTUpywbihS7wu+b9c1Iis=; b=on2MgYbtd3b9nE73RE50e 7TCsvg8FKBAX7IKZet14VqDrlb1wCXD/+sJtjUmwEcx0DWrnjlofaNCOAL30TDb/ xQo2vDL4Hi6qv51JLcLDjtd9wLY77ewruAdSnPrU7R6Zbb+JMZmhy9yaHeR4nQAC 3fLB6ep3yVAZ77cG+AKqsY= Received: from lizhe.. (unknown [120.245.132.192]) by zwqz-smtp-mta-g2-2 (Coremail) with SMTP id _____wCHtzfnkxZkBrnyAQ--.4626S4; Sun, 19 Mar 2023 12:47:55 +0800 (CST) From: Lizhe To: perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org Subject: [PATCH v1] ALSA:ac97: Remove redundant driver match function Date: Sun, 19 Mar 2023 12:47:33 +0800 Message-Id: <20230319044733.327091-1-sensor1010@163.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CM-TRANSID: _____wCHtzfnkxZkBrnyAQ--.4626S4 X-Coremail-Antispam: 1Uf129KBjvdXoW7Jr1kAr4DtrykWF4rKF4rXwb_yoWkWrg_Ca y7ZFs7Xr17KF1fJw4fXw47AF97Ka1qvw1kKrs5t398KFyfXw4UWw4kJrsxAFn5urn2yFsx WryUXrWIy347XjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7xRNmhFDUUUUU== X-Originating-IP: [120.245.132.192] X-CM-SenderInfo: 5vhq20jurqiii6rwjhhfrp/xtbBohw3q1aEHrnIhQAAsa X-MailFrom: sensor1010@163.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1 Message-ID-Hash: 5X2EVZVNHVZWON4EZPUGNSUINSK2JJ6D X-Message-ID-Hash: 5X2EVZVNHVZWON4EZPUGNSUINSK2JJ6D X-Mailman-Approved-At: Mon, 20 Mar 2023 19:28:32 +0000 CC: linux-kernel@vger.kernel.org, Lizhe X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: If there is no driver match function, the driver core assumes that each candidate pair (driver, device) matches, see driver_match_device() Drop the bus's match function that always returned 1 and so implements the same behaviour as when there is no match function. Signed-off-by: Lizhe --- sound/ac97_bus.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/sound/ac97_bus.c b/sound/ac97_bus.c index b4685c53ff11..c7aee8c42c55 100644 --- a/sound/ac97_bus.c +++ b/sound/ac97_bus.c @@ -75,19 +75,8 @@ int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id, } EXPORT_SYMBOL_GPL(snd_ac97_reset); -/* - * Let drivers decide whether they want to support given codec from their - * probe method. Drivers have direct access to the struct snd_ac97 - * structure and may decide based on the id field amongst other things. - */ -static int ac97_bus_match(struct device *dev, struct device_driver *drv) -{ - return 1; -} - struct bus_type ac97_bus_type = { .name = "ac97", - .match = ac97_bus_match, }; static int __init ac97_bus_init(void)