linux-kernel - Re: [PATCH 1/2] net: macb: Fix compilation on systems without COMMON

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Date:   Tue, 25 Jun 2019 10:46:14 +0530
From:   Harini Katakam <harinik@...inx.com>
To:     Nicolas Ferre <Nicolas.Ferre@...rochip.com>
Cc:     palmer@...ive.com, Harini Katakam <harini.katakam@...inx.com>,
        David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Michal Simek <michal.simek@...inx.com>
Subject: Re: [PATCH 1/2] net: macb: Fix compilation on systems without COMMON_CLK

On Tue, Jun 25, 2019 at 4:17 AM <Nicolas.Ferre@...rochip.com> wrote:
>
> On 24/06/2019 at 11:57, Palmer Dabbelt wrote:
> > External E-Mail
> >
> >
> > On Mon, 24 Jun 2019 02:40:21 PDT (-0700), Nicolas.Ferre@...rochip.com wrote:
> >> On 24/06/2019 at 08:16, Palmer Dabbelt wrote:
> >>> External E-Mail
> >>>
> >>>
> >>> The patch to add support for the FU540-C000 added a dependency on
> >>> COMMON_CLK, but didn't express that via Kconfig.  This fixes the build
> >>> failure by adding CONFIG_MACB_FU540, which depends on COMMON_CLK and
> >>> conditionally enables the FU540-C000 support.
> >>
> >> Let's try to limit the use of  #ifdef's throughout the code. We are
> >> using them in this driver but only for the hot paths and things that
> >> have an impact on performance. I don't think it's the case here: so
> >> please find another option => NACK.
> >
> > OK.  Would you accept adding a Kconfig dependency of the generic MACB driver on
> > COMMON_CLK, as suggested in the cover letter?
>
> Yes: all users of this peripheral have COMMON_CLK set.
> You can remove it from the PCI wrapper then.
>

Yes, +1, both Zynq and ZynqMP have COMMON_CLK set, thanks.

Regards,
Harini