Re: [PATCH v13 01/12] swiotlb: Refactor swiotlb init functions

[Christoph Hellwig <hch@xxxxxx>]

On Mon, Jun 21, 2021 at 10:59:20AM -0700, Stefano Stabellini wrote:
> Just as a clarification: I was referring to the zeroing of "mem" in
> swiotlb_late_init_with_tbl and swiotlb_init_with_tbl. While it looks
> like Tom and Christoph are talking about the zeroing of "tlb".

Indeed. 

> 
> The zeroing of "mem" is required as some fields of struct io_tlb_mem
> need to be initialized to zero. While the zeroing of "tlb" is not
> required except from the point of view of not leaking sensitive data as
> Christoph mentioned.
> 
> Either way, Claire's v14 patch 01/12 looks fine to me.

Agreed.