linux-kernel - Re: drivers/pinctrl/cirrus/pinctrl-lochnagar.c:52:53: error: pasting "LOCHNAGAR1_" and "(" does not give a valid preprocessing token

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Date:   Tue, 14 Nov 2023 14:40:38 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     kernel test robot <lkp@...el.com>, Rob Herring <robh+dt@...nel.org>
Cc:     Charles Keepax <ckeepax@...nsource.cirrus.com>,
        oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: drivers/pinctrl/cirrus/pinctrl-lochnagar.c:52:53: error: pasting
 "LOCHNAGAR1_" and "(" does not give a valid preprocessing token

On Tue, Nov 7, 2023 at 6:19 AM kernel test robot <lkp@...el.com> wrote:

> >> drivers/pinctrl/cirrus/pinctrl-lochnagar.c:52:53: error: pasting "LOCHNAGAR1_" and "(" does not give a valid preprocessing token
>       52 |         .name = NAME, .type = LN_PTYPE_GPIO, .reg = LOCHNAGAR##REV##_##REG, \
>          |                                                     ^~~~~~~~~
>    drivers/pinctrl/cirrus/pinctrl-lochnagar.c:67:9: note: in expansion of macro 'LN_PIN_GPIO'
>       67 |         LN_PIN_GPIO(1, ID, NAME, REG, SHIFT, INVERT)
>          |         ^~~~~~~~~~~

I looked a bit at this, can this be due to the fact that the macros use defines
from include/dt-bindings/...* and that MIPS does not use these includes
somehow, such as not using the same dtc compiler?

Rob, do you know the story of how MIPS interoperates with <dt-bindings/*>?

Yours,
Linus Walleij