From nobody Fri Dec 19 03:45:40 2025 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 081A5C04FE2 for ; Mon, 14 Aug 2023 11:57:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232769AbjHNL5j (ORCPT ); Mon, 14 Aug 2023 07:57:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57570 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233163AbjHNL4t (ORCPT ); Mon, 14 Aug 2023 07:56:49 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A300319B1 for ; Mon, 14 Aug 2023 04:56:33 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id B21791FD6A; Mon, 14 Aug 2023 11:55:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1692014157; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=DzfPkrsHVrap+B5JD7fqRR+3BmI5kvbs99homa/INDo=; b=WbY4jj3/sk00FggPcUN6O0aD11Ah7Xhq+9Ug/mn6uRgymnckvhjVFU6IXtJSwKdQ+dk/2F Yo/d032FvvXeB8krreZ/19OZkriFdaDStfhsTIy1uA7WzBm919g5MiiVnx/TSdrbROjrAG lrYKqiLMEQUOOb9NKAlWSEsgEK2AGl4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1692014157; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=DzfPkrsHVrap+B5JD7fqRR+3BmI5kvbs99homa/INDo=; b=099nYc389SygLDTBfFZDK/anaM2wRHsyU4Xjdu8kvoIqxfk4wm3T2Fest5dDR87Ll+kAnz HVUVFF0jBqvphtDQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 9181E138EE; Mon, 14 Aug 2023 11:55:57 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id UEaxIU0W2mRnMAAAMHmgww (envelope-from ); Mon, 14 Aug 2023 11:55:57 +0000 From: Takashi Iwai To: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org, Takashi Iwai Subject: [PATCH 25/25] ALSA: pcm: Drop obsoleted PCM copy_user and copy_kernel ops Date: Mon, 14 Aug 2023 13:55:23 +0200 Message-Id: <20230814115523.15279-26-tiwai@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230814115523.15279-1-tiwai@suse.de> References: <20230814115523.15279-1-tiwai@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Finally all users have been converted to the new PCM copy ops, let's drop the obsoleted copy_kernel and copy_user ops completely. Signed-off-by: Takashi Iwai --- include/sound/pcm.h | 5 ----- sound/core/pcm_lib.c | 18 +----------------- sound/core/pcm_native.c | 2 +- 3 files changed, 2 insertions(+), 23 deletions(-) diff --git a/include/sound/pcm.h b/include/sound/pcm.h index f75beead79e3..958a0b284b5f 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -71,11 +71,6 @@ struct snd_pcm_ops { unsigned long pos, unsigned long bytes); int (*copy)(struct snd_pcm_substream *substream, int channel, unsigned long pos, struct iov_iter *iter, unsigned long bytes); - int (*copy_user)(struct snd_pcm_substream *substream, int channel, - unsigned long pos, void __user *buf, - unsigned long bytes); - int (*copy_kernel)(struct snd_pcm_substream *substream, int channel, - unsigned long pos, void *buf, unsigned long bytes); struct page *(*page)(struct snd_pcm_substream *substream, unsigned long offset); int (*mmap)(struct snd_pcm_substream *substream, struct vm_area_struct *v= ma); diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 3303914c58ea..4859fb1caec9 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -2031,19 +2031,6 @@ static int default_read_copy(struct snd_pcm_substrea= m *substream, return 0; } =20 -/* a wrapper for calling old copy_kernel or copy_user ops */ -static int call_old_copy(struct snd_pcm_substream *substream, - int channel, unsigned long hwoff, - struct iov_iter *iter, unsigned long bytes) -{ - if (iov_iter_is_kvec(iter)) - return substream->ops->copy_kernel(substream, channel, hwoff, - iter_iov_addr(iter), bytes); - else - return substream->ops->copy_user(substream, channel, hwoff, - iter_iov_addr(iter), bytes); -} - /* call transfer with the filled iov_iter */ static int do_transfer(struct snd_pcm_substream *substream, int c, unsigned long hwoff, void *data, unsigned long bytes, @@ -2147,7 +2134,7 @@ static int pcm_sanity_check(struct snd_pcm_substream = *substream) if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; runtime =3D substream->runtime; - if (snd_BUG_ON(!substream->ops->copy && !substream->ops->copy_user && !ru= ntime->dma_area)) + if (snd_BUG_ON(!substream->ops->copy && !runtime->dma_area)) return -EINVAL; if (runtime->state =3D=3D SNDRV_PCM_STATE_OPEN) return -EBADFD; @@ -2255,9 +2242,6 @@ snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_s= ubstream *substream, } else { if (substream->ops->copy) transfer =3D substream->ops->copy; - else if ((in_kernel && substream->ops->copy_kernel) || - (!in_kernel && substream->ops->copy_user)) - transfer =3D call_old_copy; else transfer =3D is_playback ? default_write_copy : default_read_copy; diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 34efd4d198d6..bd9ddf412b46 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -809,7 +809,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *= substream, runtime->boundary *=3D 2; =20 /* clear the buffer for avoiding possible kernel info leaks */ - if (runtime->dma_area && !substream->ops->copy && !substream->ops->copy_u= ser) { + if (runtime->dma_area && !substream->ops->copy) { size_t size =3D runtime->dma_bytes; =20 if (runtime->info & SNDRV_PCM_INFO_MMAP) --=20 2.35.3