Messages in this thread | | | Date | Tue, 23 Aug 2016 23:42:32 +0300 | From | Mikko Rapeli <> | Subject | Re: [dm-devel] [PATCH v05 04/72] dm-log-userspace.h: use __u32, __s32 and __u64 from linux/types.h |
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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.
-Mikko
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