linux-kernel - Re: [PATCH v05 38/72] include/uapi/linux/openvswitch.h: use _

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Date:   Tue, 23 Aug 2016 09:49:21 +0300
From:   Mikko Rapeli <mikko.rapeli@....fi>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     linux-kernel@...r.kernel.org, Pravin Shelar <pshelar@...ira.com>,
        netdev@...r.kernel.org, dev@...nvswitch.org
Subject: Re: [PATCH v05 38/72] include/uapi/linux/openvswitch.h: use __u32
 from linux/types.h

On Mon, Aug 22, 2016 at 12:39:38PM -0700, Stephen Hemminger wrote:
> On Mon, 22 Aug 2016 20:32:55 +0200
> Mikko Rapeli <mikko.rapeli@....fi> wrote:
> 
> > Fixes userspace compiler error:
> > 
> > error: unknown type name ‘uint32_t’
> > 
> > Signed-off-by: Mikko Rapeli <mikko.rapeli@....fi>
> > ---
> >  include/uapi/linux/openvswitch.h | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
> > index d95a301..645499a 100644
> > --- a/include/uapi/linux/openvswitch.h
> > +++ b/include/uapi/linux/openvswitch.h
> > @@ -632,8 +632,8 @@ enum ovs_hash_alg {
> >   * @hash_basis: basis used for computing hash.
> >   */
> >  struct ovs_action_hash {
> > -	uint32_t  hash_alg;     /* One of ovs_hash_alg. */
> > -	uint32_t  hash_basis;
> > +	__u32  hash_alg;     /* One of ovs_hash_alg. */
> > +	__u32  hash_basis;
> >  };
> >  
> >  /**
> 
> This is a a real issue, but being buried in a huge patch series of include
> file stuff I don't think anyone would see it.

The mechanism for finding this issue the same as finding a missing header file
dependency: the uapi header userspace compile test.

https://lkml.org/lkml/2016/8/22/659

I'm using "scripts/get_maintainers.pl --no-rolestats" to fill in the Cc: list
for git send-email so if MAINTAINERS is uptodate, then correct lists and
maintainers should have the received the patches.

-Mikko