linux-kernel - Re: [PATCH v4 02/10] dmaengine: Actions: Add support for S700 DMA engine

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Message-ID: <CABHD4K9VOWpC7=o2VKrqoxEtMQ2gFv_Qs885dBKL1o+B_fe_3g@mail.gmail.com>
Date:   Tue, 30 Jun 2020 15:17:41 +0530
From:   Amit Tomer <amittomer25@...il.com>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     Andre Przywara <andre.przywara@....com>,
        Andreas Färber <afaerber@...e.de>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        dan.j.williams@...el.com, cristian.ciocaltea@...il.com,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-actions@...ts.infradead.org
Subject: Re: [PATCH v4 02/10] dmaengine: Actions: Add support for S700 DMA engine

Hi Vinod,

On Mon, Jun 29, 2020 at 3:22 PM Vinod Koul <vkoul@...nel.org> wrote:

> If you use of_device_get_match_data() you will not fall into this :)

But again, of_device_get_match_data() returns void *, and we need
"uintptr_t" in order to type cast it properly (at-least without
warning).

Also, while looking around found the similar warning for other file
where it uses " of_device_get_match_data()"
drivers/pci/controller/pcie-iproc-platform.c:56:15: warning: cast to
smaller integer type 'enum iproc_pcie_type' from 'const void *'
[-Wvoid-pointer-to-enum-cast]
        pcie->type = (enum iproc_pcie_type) of_device_get_match_data(dev);

Thanks
-Amit