From mboxrd@z Thu Jan 1 00:00:00 1970 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 936CCC001DB for ; Mon, 14 Aug 2023 12:27:45 +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 A01F983E; Mon, 14 Aug 2023 14:26:53 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A01F983E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1692016063; bh=EAxWg1mRui+L0RL6fvTm/qtJ7U8lPgyy04gcmCUWGtI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=ltQtIOHxzyd+N9TTuxCux/+sCvzkQJtcEtref6mUyjptIpWefe0YLWoQJMbXQygR7 h/G3QMYHqs1KoQW/TmILulPVlD24i66TS3gyUK8/shxocX267iTszfNF/qxfhu61DI heL3m+ObOMxPVHwHXoOsEYK4qFbBji3NL50xThXM= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 31747F8025F; Mon, 14 Aug 2023 14:26:25 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id B3D2CF80074; Mon, 14 Aug 2023 14:26:24 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 63AFBF8025F; Mon, 14 Aug 2023 14:26:21 +0200 (CEST) Received: from iodev.co.uk (iodev.co.uk [46.30.189.100]) by alsa1.perex.cz (Postfix) with ESMTP id A70A3F800EE for ; Mon, 14 Aug 2023 14:26:19 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz A70A3F800EE Received: from pirotess (80.red-83-50-209.dynamicip.rima-tde.net [83.50.209.80]) by iodev.co.uk (Postfix) with ESMTPSA id 8FBCA208939; Mon, 14 Aug 2023 14:26:18 +0200 (CEST) Date: Mon, 14 Aug 2023 14:26:16 +0200 From: Ismael Luceno To: Takashi Iwai Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Andrey Utkin , Mauro Carvalho Chehab , linux-media@vger.kernel.org Subject: Re: [PATCH 17/25] media: solo6x10: Convert to generic PCM copy ops Message-ID: References: <20230814115523.15279-1-tiwai@suse.de> <20230814115523.15279-18-tiwai@suse.de> <87350l3jix.wl-tiwai@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87350l3jix.wl-tiwai@suse.de> X-Spam: Yes Message-ID-Hash: E2KBQVYF22GYU4PX5ON22TETNSBV5FA2 X-Message-ID-Hash: E2KBQVYF22GYU4PX5ON22TETNSBV5FA2 X-MailFrom: ismael@iodev.co.uk 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; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header 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: On 14/Aug/2023 14:17, Takashi Iwai wrote: > On Mon, 14 Aug 2023 14:15:18 +0200, > Ismael Luceno wrote: > > > > On 14/Aug/2023 13:55, Takashi Iwai wrote: > > > This patch converts the solo6x10 driver code to use the new unified > > > PCM copy callback. It's a straightforward conversion from *_user() to > > > *_iter() variants. As copy_to_iter() updates the internal offest at > > > each write, we can drop the dst counter update in the loop, too. > > > > > > Note that copy_from/to_iter() returns the copied bytes, hence the > > > error condition is inverted from copy_from/to_user(). > > > > > > Cc: Bluecherry Maintainers > > > Cc: Anton Sviridenko > > > Cc: Andrey Utkin > > > Cc: Ismael Luceno > > > Cc: Mauro Carvalho Chehab > > > Cc: linux-media@vger.kernel.org > > > Signed-off-by: Takashi Iwai > > > --- > > > drivers/media/pci/solo6x10/solo6x10-g723.c | 38 +++------------------- > > > 1 file changed, 5 insertions(+), 33 deletions(-) > > > > > > diff --git a/drivers/media/pci/solo6x10/solo6x10-g723.c b/drivers/media/pci/solo6x10/solo6x10-g723.c > > > index 6cebad665565..aceacb822cab 100644 > > > --- a/drivers/media/pci/solo6x10/solo6x10-g723.c > > > +++ b/drivers/media/pci/solo6x10/solo6x10-g723.c > > > @@ -204,9 +204,9 @@ static snd_pcm_uframes_t snd_solo_pcm_pointer(struct snd_pcm_substream *ss) > > > return idx * G723_FRAMES_PER_PAGE; > > > } > > > > > > -static int snd_solo_pcm_copy_user(struct snd_pcm_substream *ss, int channel, > > > - unsigned long pos, void __user *dst, > > > - unsigned long count) > > > +static int snd_solo_pcm_copy(struct snd_pcm_substream *ss, int channel, > > > + unsigned long pos, struct iov_iter *dst, > > > + unsigned long count) > > > { > > > struct solo_snd_pcm *solo_pcm = snd_pcm_substream_chip(ss); > > > struct solo_dev *solo_dev = solo_pcm->solo_dev; > > > @@ -223,35 +223,8 @@ static int snd_solo_pcm_copy_user(struct snd_pcm_substream *ss, int channel, > > > if (err) > > > return err; > > > > > > - if (copy_to_user(dst, solo_pcm->g723_buf, G723_PERIOD_BYTES)) > > > + if (!copy_to_iter(solo_pcm->g723_buf, G723_PERIOD_BYTES, dst)) > > > return -EFAULT; > > > - dst += G723_PERIOD_BYTES; > > > - } > > > - > > > - return 0; > > > -} > > > - > > > -static int snd_solo_pcm_copy_kernel(struct snd_pcm_substream *ss, int channel, > > > - unsigned long pos, void *dst, > > > - unsigned long count) > > > -{ > > > - struct solo_snd_pcm *solo_pcm = snd_pcm_substream_chip(ss); > > > - struct solo_dev *solo_dev = solo_pcm->solo_dev; > > > - int err, i; > > > - > > > - for (i = 0; i < (count / G723_FRAMES_PER_PAGE); i++) { > > > - int page = (pos / G723_FRAMES_PER_PAGE) + i; > > > - > > > - err = solo_p2m_dma_t(solo_dev, 0, solo_pcm->g723_dma, > > > - SOLO_G723_EXT_ADDR(solo_dev) + > > > - (page * G723_PERIOD_BLOCK) + > > > - (ss->number * G723_PERIOD_BYTES), > > > - G723_PERIOD_BYTES, 0, 0); > > > - if (err) > > > - return err; > > > - > > > - memcpy(dst, solo_pcm->g723_buf, G723_PERIOD_BYTES); > > > - dst += G723_PERIOD_BYTES; > > > } > > > > > > return 0; > > > @@ -263,8 +236,7 @@ static const struct snd_pcm_ops snd_solo_pcm_ops = { > > > .prepare = snd_solo_pcm_prepare, > > > .trigger = snd_solo_pcm_trigger, > > > .pointer = snd_solo_pcm_pointer, > > > - .copy_user = snd_solo_pcm_copy_user, > > > - .copy_kernel = snd_solo_pcm_copy_kernel, > > > + .copy = snd_solo_pcm_copy, > > > }; > > > > > > static int snd_solo_capture_volume_info(struct snd_kcontrol *kcontrol, > > > -- > > > 2.35.3 > > > > > > > Signed-off-by: Ismael Luceno > > You meant Reviewed-by or Acked-by? Signed-off-by is a tag used when > you carry a patch. > > > thanks, > > Takashi Yes, sorry, I meant "Acked-by".