[PATCH 05/98] exynos_drm.h: use __u64 from linux/types.h
Russell King - ARM Linux
linux at arm.linux.org.uk
Mon Jun 1 02:38:09 PDT 2015
On Mon, Jun 01, 2015 at 11:08:21AM +0200, Christian König wrote:
> Yeah, completely agree with Linus on the visibility problem and that's
> exactly the reason why we don't include <stdint.h> in the kernel header and
> expect userspace to define the ISO types somewhere.
> But using the types from "include/linux/types.h" and especially including it
> into the uapi headers doesn't make the situation better, but rather worse.
> With this step we not only make the headers depend on another header that
> isn't part of the uapi, but also pollute the user space namespace with __sXX
> and __uXX types which aren't defined anywhere else.
1) Header files are permitted to pollute userspace with __-defined stuff.
2) __[su]XX types are defined as part of the kernel's uapi.
include/uapi/linux/types.h includes asm/types.h, which in userspace
picks up include/uapi/asm-generic/types.h. That picks up
asm-generic/int-ll64.h, which defines these types.
Moreover, this is done throughout the kernel headers _already_ (as you
would expect for a policy set 10+ years ago).
Please, I'm not interested in this discussion, so please don't argue
with me - I may agree with your position, but what you think and what
I think are really not relevant here. If you have a problem, take it
up with Linus - I made that clear in my email.
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
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