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SubjectRe: [dm-devel] [PATCH v05 04/72] dm-log-userspace.h: use __u32, __s32 and __u64 from linux/types.h
On Thu, Aug 25, 2016 at 04:24:11AM +0000, Bart Van Assche wrote:
> On 08/23/16 13:42, Mikko Rapeli wrote:
> > On Tue, Aug 23, 2016 at 02:28:19PM +0000, Bart Van Assche wrote:
> >> On 08/23/16 06:57, Bart Van Assche wrote:
> >>> On 08/22/16 11:32, Mikko Rapeli wrote:
> >>>> - * uint32_t (*get_region_size)(struct dm_dirty_log *log);
> >>>> + * __u32 (*get_region_size)(struct dm_dirty_log *log);
> >>>
> >>> uint32_t is a type that is defined by ANSI C but __u32 not. So this
> >>> change looks wrong to me. Would it have been sufficient to add "#include
> >>> <linux/types.h>" and keep the uint32_t etc. type names?
> >>
> >> Answering my own question: adding "#include <linux/types.h>" wouldn't be
> >> sufficient. How about adding the following code that also occurs in a
> >> few other uapi header files?
> >>
> >> #ifndef __KERNEL__
> >> #include <stdint.h>
> >> #endif
> >> #include <linux/types.h>
> >
> > I have tried that before but I was instructed to use the linux/types.h
> > versions. For example https://lkml.org/lkml/2015/6/1/160
> >
> > But lately drm and fuse and some others have questioned this approach and
> > would like to use/continue using C99 stdint.h types.
>
> Hello Mikko,
>
> Thanks for the feedback. I have a minor comment though about your patch:
> are you aware that you have changed uint64_t into __u64 in source code
> comments but that int64_t has not been changed into __s64?

Thanks, that's a bug. I'll update the patch.

I guess I was reading compiler error list and string replacing only those.

-Mikko

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