From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@kernel.org>
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=-3.8 required=3.0 tests=BAYES_00,
	HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS
	autolearn=no 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 4EA27C433DB
	for <linux-kernel@archiver.kernel.org>; Sun, 28 Feb 2021 11:16:13 +0000 (UTC)
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by mail.kernel.org (Postfix) with ESMTP id 0BF8364E55
	for <linux-kernel@archiver.kernel.org>; Sun, 28 Feb 2021 11:16:12 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S230464AbhB1LQM (ORCPT <rfc822;linux-kernel@archiver.kernel.org>);
        Sun, 28 Feb 2021 06:16:12 -0500
Received: from mx2.suse.de ([195.135.220.15]:38964 "EHLO mx2.suse.de"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S230165AbhB1LQJ (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Sun, 28 Feb 2021 06:16:09 -0500
X-Virus-Scanned: by amavisd-new at test-mx.suse.de
Received: from relay2.suse.de (unknown [195.135.221.27])
        by mx2.suse.de (Postfix) with ESMTP id A833DAB7D;
        Sun, 28 Feb 2021 11:15:27 +0000 (UTC)
Date:   Sun, 28 Feb 2021 12:15:27 +0100
Message-ID: <s5htupwjve8.wl-tiwai@suse.de>
From:   Takashi Iwai <tiwai@suse.de>
To:     Anton Yakovlev <anton.yakovlev@opensynergy.com>
Cc:     <virtualization@lists.linux-foundation.org>,
        <alsa-devel@alsa-project.org>, <virtio-dev@lists.oasis-open.org>,
        "Michael S. Tsirkin" <mst@redhat.com>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v6 4/9] ALSA: virtio: build PCM devices and substream hardware descriptors
In-Reply-To: <20210227085956.1700687-5-anton.yakovlev@opensynergy.com>
References: <20210227085956.1700687-1-anton.yakovlev@opensynergy.com>
        <20210227085956.1700687-5-anton.yakovlev@opensynergy.com>
User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka)
 FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3
 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO)
MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka")
Content-Type: text/plain; charset=US-ASCII
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Sat, 27 Feb 2021 09:59:51 +0100,
Anton Yakovlev wrote:
> +static int virtsnd_pcm_build_hw(struct virtio_pcm_substream *vss,
> +				struct virtio_snd_pcm_info *info)
> +{
....
> +	for (i = 0; i < ARRAY_SIZE(g_v2a_format_map); ++i)
> +		if (values & (1ULL << i)) {
> +			snd_pcm_format_t alsa_fmt = g_v2a_format_map[i];
> +			int bytes = snd_pcm_format_physical_width(alsa_fmt) / 8;
> +
> +			if (!sample_min || sample_min > bytes)
> +				sample_min = bytes;
> +
> +			if (sample_max < bytes)
> +				sample_max = bytes;
> +
> +			vss->hw.formats |= (1ULL << (__force int)alsa_fmt);

Please use pcm_format_to_bits().

> +	/* Align the buffer size to the page size */
> +	vss->hw.buffer_bytes_max =
> +		(vss->hw.buffer_bytes_max + PAGE_SIZE - 1) & -PAGE_SIZE;

You can use PAGE_ALIGN() macro.


thanks,

Takashi