linux-kernel - Re: [PATCH v10 05/12] dmaengine: dma: imx-sdma: add fw_loaded and is_ram

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Message-ID: <20200715055711.GW34333@vkoul-mobl>
Date:   Wed, 15 Jul 2020 11:27:11 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Robin Gong <yibin.gong@....com>
Cc:     mark.rutland@....com, broonie@...nel.org, robh+dt@...nel.org,
        catalin.marinas@....com, will.deacon@....com, shawnguo@...nel.org,
        festevam@...il.com, s.hauer@...gutronix.de,
        martin.fuzzey@...wbird.group, u.kleine-koenig@...gutronix.de,
        dan.j.williams@...el.com, matthias.schiffer@...tq-group.com,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        kernel@...gutronix.de, dmaengine@...r.kernel.org, linux-imx@....com
Subject: Re: [PATCH v10 05/12] dmaengine: dma: imx-sdma: add fw_loaded and
 is_ram_script

On 30-06-20, 21:31, Robin Gong wrote:
> Add 'fw_loaded' and 'is_ram_script' to check if the script used by channel
> is ram script and it's loaded or not, so that could prevent meaningless
> following malloc dma descriptor and bd allocate in sdma_transfer_init(),
> otherwise memory may be consumed out potentially without free in case
> that spi fallback into pio while dma transfer failed by sdma firmware not
> ready(next ERR009165 patch depends on sdma RAM scripts/firmware).

Acked-By: Vinod Koul <vkoul@...nel.org>

-- 
~Vinod