linux-kernel - Re: [PATCH] drivers: ipa: Fix missing IRQF

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Message-ID: <a200ba57-4c70-d2cc-10b8-710789c322dc@ieee.org>
Date:   Fri, 16 Apr 2021 07:12:10 -0500
From:   Alex Elder <elder@...e.org>
To:     zhuguangqing83@...il.com, Alex Elder <elder@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers: ipa: Fix missing IRQF_ONESHOT as only threaded
 handler

On 4/15/21 10:40 PM, zhuguangqing83@...il.com wrote:
> From: Guangqing Zhu <zhuguangqing83@...il.com>

This is not required here.	-Alex

https://lore.kernel.org/netdev/d57e0a43-4d87-93cf-471c-c8185ea85ced@ieee.org/

> Coccinelle noticed:
> drivers/net/ipa/ipa_smp2p.c:186:7-27: ERROR: Threaded IRQ with no primary
> handler requested without IRQF_ONESHOT
> 
> Signed-off-by: Guangqing Zhu <zhuguangqing83@...il.com>
> ---
>   drivers/net/ipa/ipa_smp2p.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ipa/ipa_smp2p.c b/drivers/net/ipa/ipa_smp2p.c
> index a5f7a79a1923..74e04427a711 100644
> --- a/drivers/net/ipa/ipa_smp2p.c
> +++ b/drivers/net/ipa/ipa_smp2p.c
> @@ -183,7 +183,8 @@ static int ipa_smp2p_irq_init(struct ipa_smp2p *smp2p, const char *name,
>   	}
>   	irq = ret;
>   
> -	ret = request_threaded_irq(irq, NULL, handler, 0, name, smp2p);
> +	ret = request_threaded_irq(irq, NULL, handler, IRQF_ONESHOT,
> +				   name, smp2p);
>   	if (ret) {
>   		dev_err(dev, "error %d requesting \"%s\" IRQ\n", ret, name);
>   		return ret;
>