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 03CA1C04FDF for ; Mon, 14 Aug 2023 11:57:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232542AbjHNL44 (ORCPT ); Mon, 14 Aug 2023 07:56:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229562AbjHNL4R (ORCPT ); Mon, 14 Aug 2023 07:56:17 -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 448F21719 for ; Mon, 14 Aug 2023 04:56:01 -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 902921FD65; Mon, 14 Aug 2023 11:55:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1692014148; 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=5xJHuvA5gT6n1i0ytgW/H7/p1r9TYXBmYRI/sH4EsE0=; b=EgiGXoyfzn5nBXtK41sjcigPXuRYxh+MelfhGukPTbEyJOYt7orpphuweZBBYZajNz9+2K FjmYBD62SeffkFxfmFxtATueLao+YCioYqN4Vdu92bOvW8b5QraxjlAZNEpnqbSxlcpwM4 kNStJQyXCHmWZaiE+UTXunuHAt6Ql1w= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1692014148; 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=5xJHuvA5gT6n1i0ytgW/H7/p1r9TYXBmYRI/sH4EsE0=; b=QyhSlt4WQmz2MyW39c/3t1Znk45DBomh6WChw2kq0m6H5nZeAgtQ4shOCTS9VsItf8fonw TDCqd3WzCcoqVhBQ== 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 72D47138EE; Mon, 14 Aug 2023 11:55:48 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id aFwqG0QW2mRnMAAAMHmgww (envelope-from ); Mon, 14 Aug 2023 11:55:48 +0000 From: Takashi Iwai To: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org, Takashi Iwai Subject: [PATCH 09/25] ALSA: nm256: Convert to generic PCM copy ops Date: Mon, 14 Aug 2023 13:55:07 +0200 Message-Id: <20230814115523.15279-10-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" This patch converts the nm256 driver code to use the new unified PCM copy callback. It's a straightforward conversion from *_user() to *_iter() variants. Signed-off-by: Takashi Iwai --- sound/pci/nm256/nm256.c | 42 ++++++----------------------------------- 1 file changed, 6 insertions(+), 36 deletions(-) diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c index f99a1e96e923..34f90829e656 100644 --- a/sound/pci/nm256/nm256.c +++ b/sound/pci/nm256/nm256.c @@ -691,26 +691,12 @@ snd_nm256_playback_silence(struct snd_pcm_substream *= substream, static int snd_nm256_playback_copy(struct snd_pcm_substream *substream, int channel, unsigned long pos, - void __user *src, unsigned long count) + struct iov_iter *src, unsigned long count) { struct snd_pcm_runtime *runtime =3D substream->runtime; struct nm256_stream *s =3D runtime->private_data; =20 - if (copy_from_user_toio(s->bufptr + pos, src, count)) - return -EFAULT; - return 0; -} - -static int -snd_nm256_playback_copy_kernel(struct snd_pcm_substream *substream, - int channel, unsigned long pos, - void *src, unsigned long count) -{ - struct snd_pcm_runtime *runtime =3D substream->runtime; - struct nm256_stream *s =3D runtime->private_data; - - memcpy_toio(s->bufptr + pos, src, count); - return 0; + return copy_from_iter_toio(s->bufptr + pos, src, count); } =20 /* @@ -719,26 +705,12 @@ snd_nm256_playback_copy_kernel(struct snd_pcm_substre= am *substream, static int snd_nm256_capture_copy(struct snd_pcm_substream *substream, int channel, unsigned long pos, - void __user *dst, unsigned long count) + struct iov_iter *dst, unsigned long count) { struct snd_pcm_runtime *runtime =3D substream->runtime; struct nm256_stream *s =3D runtime->private_data; =20 - if (copy_to_user_fromio(dst, s->bufptr + pos, count)) - return -EFAULT; - return 0; -} - -static int -snd_nm256_capture_copy_kernel(struct snd_pcm_substream *substream, - int channel, unsigned long pos, - void *dst, unsigned long count) -{ - struct snd_pcm_runtime *runtime =3D substream->runtime; - struct nm256_stream *s =3D runtime->private_data; - - memcpy_fromio(dst, s->bufptr + pos, count); - return 0; + return copy_to_iter_fromio(dst, s->bufptr + pos, count); } =20 #endif /* !__i386__ */ @@ -909,8 +881,7 @@ static const struct snd_pcm_ops snd_nm256_playback_ops = =3D { .trigger =3D snd_nm256_playback_trigger, .pointer =3D snd_nm256_playback_pointer, #ifndef __i386__ - .copy_user =3D snd_nm256_playback_copy, - .copy_kernel =3D snd_nm256_playback_copy_kernel, + .copy =3D snd_nm256_playback_copy, .fill_silence =3D snd_nm256_playback_silence, #endif .mmap =3D snd_pcm_lib_mmap_iomem, @@ -924,8 +895,7 @@ static const struct snd_pcm_ops snd_nm256_capture_ops = =3D { .trigger =3D snd_nm256_capture_trigger, .pointer =3D snd_nm256_capture_pointer, #ifndef __i386__ - .copy_user =3D snd_nm256_capture_copy, - .copy_kernel =3D snd_nm256_capture_copy_kernel, + .copy =3D snd_nm256_capture_copy, #endif .mmap =3D snd_pcm_lib_mmap_iomem, }; --=20 2.35.3