linux-kernel - Missing include file in include/uapi/linux/errqueue.h?

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Date:	Sat, 9 Jul 2016 10:36:16 -0700
From:	Brooks Moses <bmoses@...gle.com>
To:	linux-kernel@...r.kernel.org,
	Willem de Bruijn <willemb@...gle.com>,
	"David S. Miller" <davem@...emloft.net>,
	Ian Kasprzak <iankaz@...gle.com>
Subject: Missing include file in include/uapi/linux/errqueue.h?

Hello!

I've been attempting to qualify the Linux 4.5.2 user-space headers for
a toolchain release, and ran into what looks like a missing include
file in include/uapi/linux/errqueue.h.  In particular,
https://github.com/torvalds/linux/commit/f24b9be5957b38bb420b838115040dc2031b7d0c
adds the following to this file:

+struct scm_timestamping {
+ struct timespec ts[3];
+};

However, struct timespec is defined in time.h, which isn't included
either in 4.5.2 or in current head.  Is this simply a missing #include
line, or am I misunderstanding something?

I also note that this is the second user-space header in the Linux
4.5.2 release we've run into that simply fails to compile when
included by itself.  Is there not a test target that tests for this?
Would it be welcome if I were to work on adding one?

Thanks,
- Brooks