Re: Linux 4.19-rc1

From: Christoph Hellwig
Date: Mon Aug 27 2018 - 11:46:45 EST


> sparc:
>
> WARNING: CPU: 0 PID: 1 at ./include/linux/dma-mapping.h:516 esp_sbus_probe+0x408/0x6e8
> WARNING: CPU: 0 PID: 1 at ./include/linux/dma-mapping.h:516 sparc_lance_probe_one+0x428/0x4f
>
> Missing initialization of coherent_dma_mask in the respective drivers.
>
> ---
> Each platform driver instantiated through a devicetree node now generates
> the following warning:
>
> esp ffd38e00: DMA mask not set
>
> It isn't a traceback so it may fly under the radar. There is nothing the
> drivers can do about it; the message is generated by the core before the
> driver probe function is called. No idea what a correct fix might be.

Both of these should probably be fixed by something like the patch
below:

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