linux-kernel - Re: [PATCH 2/9] iommu/rockchip: Fix error handling in attach

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Date:   Fri, 12 Jan 2018 08:33:17 +0800
From:   JeffyChen <jeffy.chen@...k-chips.com>
To:     Robin Murphy <robin.murphy@....com>, linux-kernel@...r.kernel.org
CC:     jcliang@...omium.org, tfiga@...omium.org,
        Heiko Stuebner <heiko@...ech.de>,
        linux-rockchip@...ts.infradead.org,
        iommu@...ts.linux-foundation.org, Joerg Roedel <joro@...tes.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/9] iommu/rockchip: Fix error handling in attach

Hi Robin,

thanks for your reply.

On 01/11/2018 11:47 PM, Robin Murphy wrote:
>>
>> +    for (i = 0; i < iommu->num_irq; i++) {
>> +        ret = devm_request_irq(iommu->dev, iommu->irq[i], rk_iommu_irq,
>> +                       IRQF_SHARED, dev_name(dev), iommu);
>
> Why aren't we simply requesting the IRQ once in rk_iommu_probe()? Given
> that the hardware doesn't handle multiple translation contexts, there
> doesn't seem to be much point in being this dynamic about it.
>
it make sense, will do it in next version:)
> Robin.