From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
Subject: Re: [PATCH ib-next 2/3] IB/core: IB/core: Allow legacy verbs through
 extended interfaces
Date: Tue, 10 Nov 2015 10:28:22 -0700
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To: Eli Cohen <eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Cc: Haggai Eran <haggaie-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>, Matan Barak <matanb-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>, Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Yann Droneaud <ydroneaud-RlY5vtjFyJ3QT0dZR+AlfA@public.gmane.org>, linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>, Eran Ben Elisha <eranbe-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>, matanbe-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org
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On Tue, Nov 10, 2015 at 05:40:26PM +0200, Eli Cohen wrote:
> On Tue, Nov 10, 2015 at 05:23:10PM +0200, Eli Cohen wrote:
> > > 
> > > Call it ENOTSUP then:
> > > 
> > >        ENOTSUP         Operation not supported (POSIX.1)
> > > 
> > > Same value on Linux.
> > 
> > Yes, that's better. I will resend.
> 
> 
> Well it seems like ENOTSUP is defined only here:
> 
> ./arch/parisc/include/uapi/asm/errno.h:115:#define ENOTSUP 252     /* Function not implemented (POSIX.4 / HPUX) */

> Which obviously I cannot use. Jason, do you have another idea?

I would stick with EOPNOTSUPP in the kernel and userspace can view
that as ENOTSUP. My remark was more along the lines that EOPNOTSUPP is
not socket specific because it encompasses ENOTSUP as well on Linux,
due to having the same value.

Jason
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