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From:   Rob Herring <robh@kernel.org>
Date:   Thu, 20 May 2021 13:04:17 -0500
Message-ID: <CAL_JsqJ2onUWecftfOrZZAZgegJzwC2_UT_gRcV88L5A9R9Ddg@mail.gmail.com>
Subject: Re: [PATCH 34/39] ARM: Bulk conversion to generic_handle_domain_irq()
To:     Marc Zyngier <maz@kernel.org>
Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Ley Foon Tan <ley.foon.tan@intel.com>,
        Chris Zankel <chris@zankel.net>,
        Max Filippov <jcmvbkbc@gmail.com>,
        Vineet Gupta <vgupta@synopsys.com>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Robert Jarzmik <robert.jarzmik@free.fr>,
        Russell King <linux@armlinux.org.uk>,
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        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Rich Felker <dalias@libc.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
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        Rob Clark <robdclark@gmail.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Lee Jones <lee.jones@linaro.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        Android Kernel Team <kernel-team@android.com>
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Precedence: bulk

On Thu, May 20, 2021 at 11:58 AM Marc Zyngier <maz@kernel.org> wrote:
>
> Wherever possible, replace constructs that match either
> generic_handle_irq(irq_find_mapping()) or
> generic_handle_irq(irq_linear_revmap()) to a single call to
> generic_handle_domain_irq().
>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
>  arch/arm/mach-pxa/pxa_cplds_irqs.c | 6 ++----
>  arch/arm/mach-s3c/irq-s3c24xx.c    | 5 ++---
>  2 files changed, 4 insertions(+), 7 deletions(-)
>
> diff --git a/arch/arm/mach-pxa/pxa_cplds_irqs.c b/arch/arm/mach-pxa/pxa_cplds_irqs.c
> index ec0d9b094744..ce1bbabbad54 100644
> --- a/arch/arm/mach-pxa/pxa_cplds_irqs.c
> +++ b/arch/arm/mach-pxa/pxa_cplds_irqs.c
> @@ -39,10 +39,8 @@ static irqreturn_t cplds_irq_handler(int in_irq, void *d)
>
>         do {
>                 pending = readl(fpga->base + FPGA_IRQ_SET_CLR) & fpga->irq_mask;
> -               for_each_set_bit(bit, &pending, CPLDS_NB_IRQ) {
> -                       generic_handle_irq(irq_find_mapping(fpga->irqdomain,
> -                                                           bit));
> -               }
> +               for_each_set_bit(bit, &pending, CPLDS_NB_IRQ)
> +                       generic_handle_domain_irq(fpga->irqdomain, bit);

We see this pattern a bit, I'm wondering if we can come up with a
common helper. For an even longer name, something like:

generic_handle_domain_irq_for_bitmap(fpga->irqdomain, &pending, CPLDS_NB_IRQ);

Rob