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Date:   Thu, 27 May 2021 15:02:11 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Florian Fainelli <f.fainelli@gmail.com>
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Subject: Re: [PATCH v7 01/15] swiotlb: Refactor swiotlb init functions
Message-ID: <20210527130211.GA24344@lst.de>
References: <20210518064215.2856977-1-tientzu@chromium.org> <20210518064215.2856977-2-tientzu@chromium.org> <170a54f2-be20-ec29-1d7f-3388e5f928c6@gmail.com>
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On Wed, May 19, 2021 at 11:50:07AM -0700, Florian Fainelli wrote:
> You convert this call site with swiotlb_init_io_tlb_mem() which did not
> do the set_memory_decrypted()+memset(). Is this okay or should
> swiotlb_init_io_tlb_mem() add an additional argument to do this
> conditionally?

The zeroing is useful and was missing before.  I think having a clean
state here is the right thing.

Not sure about the set_memory_decrypted, swiotlb_update_mem_attributes
kinda suggests it is too early to set the memory decrupted.

Adding Tom who should now about all this.