[PATCH 16/21] ARM: dma-mapping: bring back dmac_{clean,inv}_range

[Russell King (Oracle)]

On Mon, Mar 27, 2023 at 02:13:12PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd at arndb.de>
> 
> These were remove ages ago in commit 702b94bff3c5 ("ARM: dma-mapping:
> remove dmac_clean_range and dmac_inv_range") in an effort to sanitize
> the dma-mapping API.

Really no, please no. Let's not go back to this, let's keep the
buffer ownership model that came at around that time.

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