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From:   "Rafael J. Wysocki" <rafael@kernel.org>
Date:   Wed, 5 Apr 2023 16:59:31 +0200
Message-ID: <CAJZ5v0h8pEq4Tx-Q=VPT-XR73NRk=_XQg6vgr-wA-CFesuuSLg@mail.gmail.com>
Subject: Re: [PATCH 5/5] ACPI: Replace irqdomain.h include with struct declarations
To:     Rob Herring <robh@kernel.org>
Cc:     "Rafael J. Wysocki" <rafael@kernel.org>,
        Len Brown <lenb@kernel.org>,
        Marcelo Schmitt <marcelo.schmitt1@gmail.com>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Michael Hennerich <Michael.Hennerich@analog.com>,
        Jonathan Cameron <jic23@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Johannes Berg <johannes@sipsolutions.net>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Jiri Slaby <jirislaby@kernel.org>,
        Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Marc Zyngier <maz@kernel.org>, linux-iio@vger.kernel.org,
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Hi Rob,

On Wed, Mar 29, 2023 at 11:21 PM Rob Herring <robh@kernel.org> wrote:
>
> linux/acpi.h includes irqdomain.h which includes of.h. Break the include
> chain by replacing the irqdomain include with forward declarations for
> struct irq_domain and irq_domain_ops which is sufficient for acpi.h.
>
> Cc: Marc Zyngier <maz@kernel.org>
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>  include/linux/acpi.h | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> index efff750f326d..169c17c0b0dc 100644
> --- a/include/linux/acpi.h
> +++ b/include/linux/acpi.h
> @@ -10,12 +10,14 @@
>
>  #include <linux/errno.h>
>  #include <linux/ioport.h>      /* for struct resource */
> -#include <linux/irqdomain.h>
>  #include <linux/resource_ext.h>
>  #include <linux/device.h>
>  #include <linux/property.h>
>  #include <linux/uuid.h>
>
> +struct irq_domain;
> +struct irq_domain_ops;
> +
>  #ifndef _LINUX
>  #define _LINUX
>  #endif
>
> --

This causes build issues in linux-next, so I've dropped the series.  I
will be happy to pick it up again when the build issues are addressed,
though.

Thanks!