Re: [PATCH 0/2] Add UVERBS_ATTR_FLAGS_IN

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On Mon, Jul 23, 2018 at 04:09:29PM -0600, Jason Gunthorpe wrote:
> 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

0-day says the second patch has a build failure if
CONFIG_INFINIBAND_USER_ACCESS is disabled, I'm going to drop the
second patch and re-spin it for now.

Jason
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