Re: [PATCH v2 1/9] vfio/ccw: Use functions for alloc/free of the vfio_ccw_private

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On Thu, Sep 09, 2021 at 04:38:41PM -0300, Jason Gunthorpe wrote:
> +
> +	private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
> +	if (!private)
> +		return ERR_PTR(-ENOMEM);

Nit: there is no need to add GFP_KERNEL when using GFP_DMA.

Also a question to the s390 maintainers: why do we need 31-bit
addressability for the main private data structure?



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