linux-kernel - Re: [PATCH] nvme: change nvme_passthru

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Date:   Tue, 5 Nov 2019 00:32:49 +0900
From:   Keith Busch <kbusch@...nel.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Marta Rybczynska <mrybczyn@...ray.eu>,
        Charles Machalow <csm10495@...il.com>,
        linux-nvme <linux-nvme@...ts.infradead.org>,
        axboe <axboe@...com>, Sagi Grimberg <sagi@...mberg.me>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] nvme: change nvme_passthru_cmd64's result field.

On Mon, Nov 04, 2019 at 04:29:16PM +0100, Christoph Hellwig wrote:
> 
> Except on 32-bit x86, which does not have the padding.  Which is why
> the current layout is so bad, as it breaks 32-it x86 compat.

Yeah, fair enough.

Charles, let's just define an explicit padding rsvd field and use the
appropriate struct for the different ioctl's.