linux-kernel - Re: [PATCH v3 04/18] dmaengine: idxd: add interrupt handle request support

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Message-ID: <87v9fvglhm.fsf@nanos.tec.linutronix.de>
Date:   Wed, 30 Sep 2020 20:36:37 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Dave Jiang <dave.jiang@...el.com>, vkoul@...nel.org,
        megha.dey@...el.com, maz@...nel.org, bhelgaas@...gle.com,
        alex.williamson@...hat.com, jacob.jun.pan@...el.com,
        ashok.raj@...el.com, jgg@...lanox.com, yi.l.liu@...el.com,
        baolu.lu@...el.com, kevin.tian@...el.com, sanjay.k.kumar@...el.com,
        tony.luck@...el.com, jing.lin@...el.com, dan.j.williams@...el.com,
        kwankhede@...dia.com, eric.auger@...hat.com, parav@...lanox.com,
        jgg@...lanox.com, rafael@...nel.org, netanelg@...lanox.com,
        shahafs@...lanox.com, yan.y.zhao@...ux.intel.com,
        pbonzini@...hat.com, samuel.ortiz@...el.com, mona.hossain@...el.com
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        x86@...nel.org, linux-pci@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH v3 04/18] dmaengine: idxd: add interrupt handle request support

On Tue, Sep 15 2020 at 16:28, Dave Jiang wrote:
>  
> +#define INT_HANDLE_IMS_TABLE	0x10000
> +int idxd_device_request_int_handle(struct idxd_device *idxd, int idx,
> +				   int *handle, enum idxd_interrupt_type irq_type)

New lines exist for a reason and this glued together define and function
definition is unreadable garbage.

Also is that magic bit a software flag or defined by hardware? If the
latter then you want to move it to the other hardware defines.

Thanks,

        tglx