linux-kernel - Re: [PATCH 8/8] virtio_ring.h: do not include <stdint.h> from exported header

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Date:   Mon, 4 Apr 2022 00:44:30 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
        linux-kbuild@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH 8/8] virtio_ring.h: do not include <stdint.h> from
 exported header

On Mon, Apr 04, 2022 at 03:19:48PM +0900, Masahiro Yamada wrote:
>  	vr->num = num;
>  	vr->desc = p;
>  	vr->avail = (struct vring_avail *)((char *)p + num * sizeof(struct vring_desc));
> -	vr->used = (void *)(((uintptr_t)&vr->avail->ring[num] + sizeof(__virtio16)
> +	vr->used = (void *)(((__kernel_uintptr_t)&vr->avail->ring[num] + sizeof(__virtio16)
>  		+ align-1) & ~(align - 1));

This really does not look like it should be in a uapi header to start
with.