From: Al Viro <viro@ZenIV.linux.org.uk>
To: zijun_hu <zijun_hu@zoho.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RESEND PATCH 1/1] bitops.h: move out get_count_order[_long]() from __KERNEL__ scope
Date: Thu, 18 Aug 2016 00:59:14 +0100 [thread overview]
Message-ID: <20160817235914.GJ2356@ZenIV.linux.org.uk> (raw)
In-Reply-To: <bde6a388-0eae-a67a-5b1d-1e9974feb5c0@zoho.com>
On Thu, Aug 18, 2016 at 07:51:19AM +0800, zijun_hu wrote:
> > What the hell is anything without __KERNEL__ doing with linux/bitops.h in
> > the first place? IOW, why do we have those ifdefs at all?
> >
>
> __KERNEL__ is used to indicate the relevant sections within kernel
> headers can't be exported to or used by user space
ITYM "used to be used". These days it's "everything outside of */uapi/*.h
can't be exported"...
next prev parent reply other threads:[~2016-08-18 1:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-16 6:27 [PATCH 1/1] bitops.h: move out get_count_order[_long]() from __KERNEL__ scope zijun_hu
2016-08-16 6:50 ` Stephen Rothwell
2016-08-16 7:24 ` zijun_hu
2016-08-16 7:46 ` [RESEND PATCH " zijun_hu
2016-08-17 17:20 ` Al Viro
2016-08-17 23:51 ` zijun_hu
2016-08-17 23:59 ` Al Viro [this message]
2016-08-18 0:10 ` zijun_hu
2016-08-18 0:28 ` Al Viro
2016-08-18 0:50 ` zijun_hu
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