linux-kernel - Re: arch/arc/ allmodconfig

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Date:   Mon, 23 Jul 2018 19:51:10 +0300
From:   Leon Romanovsky <leonro@...lanox.com>
To:     Vineet Gupta <Vineet.Gupta1@...opsys.com>
Cc:     "Ofer Levi(SW)" <oferle@...lanox.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        "linux-snps-arc@...ts.infradead.org" 
        <linux-snps-arc@...ts.infradead.org>,
        Meir Lichtinger <meirl@...lanox.com>
Subject: Re: arch/arc/ allmodconfig

On Mon, Jul 23, 2018 at 04:36:57PM +0000, Vineet Gupta wrote:
> Hi Ofer,
>
> On 07/23/2018 01:34 AM, Ofer Levi(SW) wrote:
> > Hi Vineet, randy
> >
> > Indeed this structure is missing, following is a patch based on linux-4.17.9.
> > Sorry about that.
> >
> > Thanks
> >
> >
> > diff -uprN linux-4.17.9.org/arch/arc/plat-eznps/include/plat/ctop.h linux-4.17.9/arch/arc/plat-eznps/include/plat/ctop.h
> > --- linux-4.17.9.org/arch/arc/plat-eznps/include/plat/ctop.h    2018-07-22 16:16:09.000000000 +0300
> > +++ linux-4.17.9/arch/arc/plat-eznps/include/plat/ctop.h        2018-07-23 11:18:12.179402620 +0300
> > @@ -143,6 +143,15 @@ struct nps_host_reg_gim_p_int_dst {
> >  };
> >
> >  /* AUX registers definition */
> > +struct nps_host_reg_aux_dpc {
> > +       union {
> > +               struct {
> > +                       u32 ien:1, men:1, hen:1, reserved:29;
> > +               };
> > +               u32 value;
> > +       };
> > +};
> > +
> >  struct nps_host_reg_aux_udmc {
> >         union {
> >                 struct {
>
> Thx for this change. Can you please send a proper patch with changelog, citing the
> issue as Reported-by etc.
> Also if Mellanox is interested in maintaining the NPS port going fwd, someone (you
> ?) should add their name to MAINTAINERS file under arch/arc/plat-eznps and send
> that patch as well.

Hi Vineet,

Thanks for your feedback, I'll work with Ofer to make it happen.

>
> Thx,
> -Vineet
>
>
> >
> >
> >
> >
> >> -----Original Message-----
> >> From: Meir Lichtinger
> >> Sent: Friday, July 20, 2018 10:19
> >> To: Vineet Gupta <Vineet.Gupta1@...opsys.com>; Randy Dunlap
> >> <rdunlap@...radead.org>; LKML <linux-kernel@...r.kernel.org>; linux-
> >> snps-arc@...ts.infradead.org; Ofer Levi(SW) <oferle@...lanox.com>
> >> Cc: Leon Romanovsky <leonro@...lanox.com>
> >> Subject: RE: arch/arc/ allmodconfig
> >>
> >> Hi Vineet,
> >> Ofer Levi is now the maintainer of arch/arc/plat-eznps
> >>
> >> Ofer,
> >> Please take care of the issue below
> >>
> >> Thanks
> >>
> >>
> >> -----Original Message-----
> >> From: Vineet Gupta [mailto:Vineet.Gupta1@...opsys.com]
> >> Sent: Thursday, July 19, 2018 19:22
> >> To: Randy Dunlap <rdunlap@...radead.org>; LKML <linux-
> >> kernel@...r.kernel.org>; Vineet Gupta <Vineet.Gupta1@...opsys.com>;
> >> linux-snps-arc@...ts.infradead.org
> >> Cc: Elad Kanfi <eladkan@...lanox.com>; Leon Romanovsky
> >> <leonro@...lanox.com>
> >> Subject: Re: arch/arc/ allmodconfig
> >>
> >> +CC some folks from Mellanox
> >>
> >> On 07/18/2018 10:37 PM, Randy Dunlap wrote:
> >>> Hi,
> >>>
> >>> When I try to (cross-)build arch/arc/ allmodconfig, I get a syntax error here:
> >>>
> >>> ./arch/arc/plat-eznps/mtm.c: In function 'mtm_enable_core':
> >>> ../arch/arc/plat-eznps/mtm.c:113:30: error: storage size of 'dpc' isn't known
> >>>   struct nps_host_reg_aux_dpc dpc;
> >>>                               ^~~
> >>>
> >>> There is no struct nps_host_reg_aux_dpc in the kernel tree.
> >>>
> >>> Can you do something about this, please?
> >> Thx for the report Randy. I'm calling out Mellanox folks to see if they can
> >> provide a fixup, else we will revert the corresponding change.
> >>
> >> @Elad, upstream commit 3f9cd874dcc8705 "ARC: [plat-eznps] avoid toggling
> >> of DPC register" added reference to struct nps_host_reg_aux_dpc but the
> >> definition is missing. Can you please provide a fixup as I have no idea of that
> >> platform specific struct.
> >>
> >> @ Leon, reaching our to you, since it seems you removed Elad from
> >> MAINTAINERS file, so I'm not sure if he is still at Mellanox.
> >> The two folks I worked with on EZCHiip Linux port Noam Camus and Gilad
> >> have left Mellanox.
> >> If you or someone from Mellanox are interested in maintaining this platform,
> >> please update the arch/arc/plat-eznps section of MAINTAINERS file.
> >>
> >>
> >> Thx,
> >> -Vineet
>