Re: [PATCH 0/2] Add UVERBS_ATTR_FLAGS_IN

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On Wed, Jul 11, 2018 at 04:20:43PM -0600, Jason Gunthorpe wrote:
> From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
> 
> This is just a little series to make the kabi specs language cleaner and
> clearer.
> 
> We have several places that use flags, and they should all follow the same
> basic rules for consistency:
> - Must be validated, unsupported bits must cause EINVAL
> - Must be passed inline as a u32 or u64, ie cannot get EFAULT
> - Are always optional, missing flags means flag == 0
> - Are always be stored in a u32 or u64 after fetching from userspace
> - Are linked to an enum defining the bits located in a uapi header
> 
> The new specs attribute and the uverbs_get_flagsXX helper enforce most of
> these rules.
> 
> Jason Gunthorpe (2):
>   IB/uverbs: Move ib_access_flags and ib_read_counters_flags to uapi
>   IB/uverbs: Add UVERBS_ATTR_FLAGS_IN to the specs language

Applied to for-next

Jason
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