linux-kernel - Re: [PATCH 1/3] phy: ralink: phy-mt7621-pci: add include search path in Makefile

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Message-ID: <CAMhs-H_9MTZvC+NkFm28MuiRQ0tpNw7gd97sN9dBgsqYD7_1LA@mail.gmail.com>
Date:   Tue, 1 Dec 2020 11:47:33 +0100
From:   Sergio Paracuellos <sergio.paracuellos@...il.com>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     Kishon Vijay Abraham I <kishon@...com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: [PATCH 1/3] phy: ralink: phy-mt7621-pci: add include search path
 in Makefile

Hi Vinod,

On Tue, Dec 1, 2020 at 11:42 AM Vinod Koul <vkoul@...nel.org> wrote:
>
> On 01-12-20, 11:16, Sergio Paracuellos wrote:
> > This driver includes the following two files directly:
> > - mt7621.h
> > - ralink_regs.h
> >
> > Compilation for its related platform properly works because
> > its real path is included in 'arch/mips/ralink/Platform' as
> > cflags.
> >
> > This driver depends on RALINK but also is enabled for COMPILE_TEST
> > where nothing about its platform is known and this directly
> > included files are not found at all breaking compilation.
> >
> > Fix this problem adding include search path for ralink in
> > ralink phy directory Makefile.
> >
> > Fixes: d87da32372a0 ("phy: ralink: Add PHY driver for MT7621 PCIe PHY")
>
> Pls add reported-by sfr..

Ok, Will change this and send v2.

>
> > Signed-off-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
> > ---
> >  drivers/phy/ralink/Makefile | 3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/phy/ralink/Makefile b/drivers/phy/ralink/Makefile
> > index cda2a4a7ca5e..c8f9adba0d82 100644
> > --- a/drivers/phy/ralink/Makefile
> > +++ b/drivers/phy/ralink/Makefile
> > @@ -1,3 +1,6 @@
> >  # SPDX-License-Identifier: GPL-2.0-only
> > +
> > +ccflags-y    += -I$(srctree)/arch/mips/include/asm/mach-ralink
>
> Can we include <asm/mips/...> instead of using this?

Doing that also fails because path for 'arch/mips/include' is not
added also because we are compiling in x86_64.
Looking into other drivers I see the way to avoid this kind of
platform specific stuff is adding related paths in
cflags. So I don't really know if there is another way.

>
> > +
> >  obj-$(CONFIG_PHY_MT7621_PCI) += phy-mt7621-pci.o
> >  obj-$(CONFIG_PHY_RALINK_USB) += phy-ralink-usb.o
> > --
> > 2.25.1
>
> --
> ~Vinod

Best regards,
    Sergio Paracuellos