linux-kernel - Re: [PATCH v4] MIPS: Replace setup_irq() by request

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Message-ID: <20200311104217.GA10615@alpha.franken.de>
Date:   Wed, 11 Mar 2020 11:42:17 +0100
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     afzal mohammed <afzal.mohd.ma@...il.com>
Cc:     Nathan Chancellor <natechancellor@...il.com>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paulburton@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list@...adcom.com,
        "Maciej W. Rozycki" <macro@...ux-mips.org>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Keguang Zhang <keguang.zhang@...il.com>,
        Huacai Chen <chenhc@...ote.com>,
        John Crispin <john@...ozen.org>
Subject: Re: [PATCH v4] MIPS: Replace setup_irq() by request_irq()

On Wed, Mar 11, 2020 at 02:33:08PM +0530, afzal mohammed wrote:
> diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
> index 64e917dfe6b2..d24e4f2985c3 100644
> --- a/arch/mips/kernel/cevt-r4k.c
> +++ b/arch/mips/kernel/cevt-r4k.c
> @@ -252,7 +252,7 @@ unsigned int __weak get_c0_compare_int(void)
>  
>  int r4k_clockevent_init(void)
>  {
> -	unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED;
> +	unsigned long flags = IRQF_PERCPU | IRQF_TIMER;
>  	unsigned int cpu = smp_processor_id();
>  	struct clock_event_device *cd;
>  	unsigned int irq, min_delta;

I don't see why this should help. In my tree only sgi-ip30 removes
IRQF_SHARED from flags, but then it uses setup_percpu_irq().
What do I miss ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]