linux-kernel - Re: [PATCH] mtd: nand: qcom: Fix the node for nand unmap resource

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Message-ID: <7a69b1e7-7b08-433b-b201-f36ce93c7761@quicinc.com>
Date:   Mon, 11 Sep 2023 18:16:19 +0530
From:   Bibek Kumar Patro <quic_bibekkum@...cinc.com>
To:     Manivannan Sadhasivam <mani@...nel.org>
CC:     <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <linux-mtd@...ts.infradead.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kernel@...cinc.com>,
        <quic_charante@...cinc.com>, <quic_kaushalk@...cinc.com>
Subject: Re: [PATCH] mtd: nand: qcom: Fix the node for nand unmap resource



On 9/9/2023 11:33 AM, Manivannan Sadhasivam wrote:
> On Thu, Sep 07, 2023 at 02:58:54PM +0530, Bibek Kumar Patro wrote:
>> While unmapping the nand resource in case of err_core_clk
>> the dev node being passed is res_start instead of nand->dma_base
>> (where the iova returned from map operation is stored) causing
>> failure in unmap operation. Hence modifying the unmap operation
>> to pass the nand->base_dma instead of res_start.
>>
>> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@...cinc.com>
>> ---
>>   drivers/mtd/nand/raw/qcom_nandc.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
>> index f583022755a2..e085a0f588eb 100644
>> --- a/drivers/mtd/nand/raw/qcom_nandc.c
>> +++ b/drivers/mtd/nand/raw/qcom_nandc.c
>> @@ -3322,7 +3322,7 @@ static int qcom_nandc_probe(struct platform_device *pdev)
>>   err_aon_clk:
>>   	clk_disable_unprepare(nandc->core_clk);
>>   err_core_clk:
>> -	dma_unmap_resource(dev, res->start, resource_size(res),
>> +	dma_unmap_resource(dev, nandc->base_dma, resource_size(res),
>>   			   DMA_BIDIRECTIONAL, 0);
>>   	dev_err(&pdev->dev, "DEBUG: probe failed for nandc module\n");
> 
> This error indicates that you are sending the patch against downstream tree.
> That's not appropriate. Please send your patches against mainline/mtd-next
> instead and also validate properly.
> 
> - Mani

This patch is created against upstream tree only,
These debug prints got added from a conflicting patch
created for debugging.
apologies for this mistake. Will revise this and send
a new patch set.

regards,
Bibek


> 
>>   	return ret;
>> -- 
>> 2.17.1
>>
>