linux-kernel - Re: [PATCH v23 17/32] ALSA: usb-audio: Do not allow USB offload path if PCM device is in use

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Date: Wed, 12 Jun 2024 16:57:26 +0200
From: Amadeusz Sławiński
 <amadeuszx.slawinski@...ux.intel.com>
To: Wesley Cheng <quic_wcheng@...cinc.com>, srinivas.kandagatla@...aro.org,
 mathias.nyman@...el.com, perex@...ex.cz, conor+dt@...nel.org,
 corbet@....net, broonie@...nel.org, lgirdwood@...il.com, krzk+dt@...nel.org,
 Thinh.Nguyen@...opsys.com, bgoswami@...cinc.com, tiwai@...e.com,
 robh@...nel.org, gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-sound@...r.kernel.org, linux-usb@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, linux-doc@...r.kernel.org,
 alsa-devel@...a-project.org
Subject: Re: [PATCH v23 17/32] ALSA: usb-audio: Do not allow USB offload path
 if PCM device is in use

On 6/11/2024 1:57 AM, Wesley Cheng wrote:
> Add proper checks and updates to the USB substream once receiving a USB QMI
> stream enable request.  If the substream is already in use from the non
> offload path, reject the stream enable request.  In addition, update the
> USB substream opened parameter when enabling the offload path, so the
> non offload path can be blocked.
> 
> Signed-off-by: Wesley Cheng <quic_wcheng@...cinc.com>
> ---
>   sound/usb/qcom/qc_audio_offload.c | 15 ++++++++++++++-
>   1 file changed, 14 insertions(+), 1 deletion(-)

Patch title is missing qcom part and it clearly touches QCOM code.
ALSA: usb-audio: qcom: