Re: ALSA: pcm: use dma_can_mmap() to check if a device supports dma_mmap_*

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To: youling 257 <youling257@xxxxxxxxx>, Takashi Iwai <tiwai@xxxxxxx>
Subject: Re: ALSA: pcm: use dma_can_mmap() to check if a device supports dma_mmap_*
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxx>
Date: Mon, 4 Nov 2019 09:32:50 +0100
Cc: linux-xtensa@xxxxxxxxxxxxxxxx, Michal Simek <monstr@xxxxxxxxx>, Vladimir Murzin <vladimir.murzin@xxxxxxx>, linux-parisc@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, Helge Deller <deller@xxxxxx>, x86@xxxxxxxxxx, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, linux-m68k@xxxxxxxxxxxxxxx, Robin Murphy <robin.murphy@xxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, hch@xxxxxx
In-reply-to: <CAOzgRdYTa-nAa7QV6c2aZs910BACg91vAjcjw4V-Oy8KCZVmmQ@mail.gmail.com>
References: <CAOzgRdYSaaF6OkXGME2=fn1dfTbpyt_GqEs=10oXH=V6SudfyA@mail.gmail.com> <s5himo0cbmm.wl-tiwai@suse.de> <CAOzgRdYTa-nAa7QV6c2aZs910BACg91vAjcjw4V-Oy8KCZVmmQ@mail.gmail.com>
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On 11/4/19 9:27 AM, youling 257 wrote:

> This driverhttps://android.googlesource.com/kernel/common/+/refs/heads/android-mainline/drivers/usb/gadget/function/f_audio_source.c

>

The driver is broken and needs to be fixed.  Please feel free to submit
patches to AOSP to do so as you can trigger this easily.

thanks,

greg k-h

Follow-Ups:
- Re: ALSA: pcm: use dma_can_mmap() to check if a device supports dma_mmap_*
  - From: Greg Kroah-Hartman

References:
- Re: ALSA: pcm: use dma_can_mmap() to check if a device supports dma_mmap_*
  - From: youling 257
- Re: ALSA: pcm: use dma_can_mmap() to check if a device supports dma_mmap_*
  - From: Takashi Iwai
- Re: ALSA: pcm: use dma_can_mmap() to check if a device supports dma_mmap_*
  - From: youling 257

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