RE: [Patch v4 2/3] Drivers: hv: add Azure Blob driver

[Long Li <longli@xxxxxxxxxxxxx>]

> Subject: Re: [Patch v4 2/3] Drivers: hv: add Azure Blob driver
> 
> On 21. 07. 21, 0:12, Long Li wrote:
> >> Subject: Re: [Patch v4 2/3] Drivers: hv: add Azure Blob driver
> >>
> >> On 20. 07. 21, 5:31, longli@xxxxxxxxxxxxxxxxx wrote:
> >>> --- /dev/null
> >>> +++ b/include/uapi/misc/hv_azure_blob.h
> >>> @@ -0,0 +1,34 @@
> >>> +/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
> >>> +/* Copyright (c) 2021 Microsoft Corporation. */
> >>> +
> >>> +#ifndef _AZ_BLOB_H
> >>> +#define _AZ_BLOB_H
> >>> +
> >>> +#include <linux/kernel.h>
> >>> +#include <linux/uuid.h>
> >>
> >> Quoting from
> >>
> https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.
> >> kernel.org%2Flinux-
> >>
> doc%2FMWHPR21MB159375586D810EC5DCB66AF0D7039%40MWHPR21M
> B1
> >>
> 593.namprd21.prod.outlook.com%2F&amp;data=04%7C01%7Clongli%40micr
> >>
> osoft.com%7C7fdf2d6ed15d4d4122a308d94b6eeed0%7C72f988bf86f141af
> 91
> >>
> ab2d7cd011db47%7C1%7C0%7C637623762292949381%7CUnknown%7CTW
> Fp
> >>
> bGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVC
> >>
> I6Mn0%3D%7C3000&amp;sdata=kv0ZkU1QL6TxlJJZEQEsT7aqLFL9lmP2SStz8k
> >> U5sIs%3D&amp;reserved=0:
> >> =====
> >> Seems like a #include of asm/ioctl.h (or something similar) is needed
> >> so that _IOWR is defined.  Also, a #include is needed for __u32,
> >> __aligned_u64, guid_t, etc.
> >> =====
> >
> > The user-space code includes "sys/ioctl.h" for calling into ioctl(). "sys/ioctl.h"
> > includes <linux/ioctl.h>, so it has no problem finding _IOWR.
> >
> > guid_t is defined in <uapi/linux/uuid.h>, included from <linux/uuid.h>
> > (in this file)
> > __u32 and __aligned_u64 are defined in <uapi/linux/types.>, which is
> > included from <linux/kernel.h> (in this file)
> 
> No, please don't rely on implicit include chains. Nor that userspace solves the
> includes for you.

Will fix this.

> 
> thanks,
> --
> js
> suse labs