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Subject: Re: [PATCH v7 11/19] dmaengine: tegra-apb: Remove pending_sg_req
 checking from tdc_start_head_req
To:     Dmitry Osipenko <digetx@gmail.com>,
        Laxman Dewangan <ldewangan@nvidia.com>,
        Vinod Koul <vkoul@kernel.org>,
        Dan Williams <dan.j.williams@intel.com>,
        Thierry Reding <thierry.reding@gmail.com>,
        =?UTF-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= <mirq-linux@rere.qmqm.pl>
CC:     <dmaengine@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
References: <20200202222854.18409-1-digetx@gmail.com>
 <20200202222854.18409-12-digetx@gmail.com>
From:   Jon Hunter <jonathanh@nvidia.com>
Message-ID: <c2718527-0c0f-88e5-6901-f3df98460bb2@nvidia.com>
Date:   Tue, 4 Feb 2020 14:53:27 +0000
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On 02/02/2020 22:28, Dmitry Osipenko wrote:
> There are only two places in the driver that use tdc_start_head_req()
> and both these places check whether pending_sg_req list is empty before
> invoking tdc_start_head_req().
> 
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
>  drivers/dma/tegra20-apb-dma.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
> index 22b88ccff05d..62d181bd5e62 100644
> --- a/drivers/dma/tegra20-apb-dma.c
> +++ b/drivers/dma/tegra20-apb-dma.c
> @@ -504,9 +504,6 @@ static void tdc_start_head_req(struct tegra_dma_channel *tdc)
>  {
>  	struct tegra_dma_sg_req *sg_req;
>  
> -	if (list_empty(&tdc->pending_sg_req))
> -		return;
> -
>  	sg_req = list_first_entry(&tdc->pending_sg_req, typeof(*sg_req), node);
>  	tegra_dma_start(tdc, sg_req);
>  	sg_req->configured = true;
> 

Acked-by: Jon Hunter <jonathanh@nvidia.com>

Cheers
Jon

-- 
nvpublic