linux-kernel - Re: [PATCH v1] misc: fastrpc: Free DMA handles for RPC calls with no arguments

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Message-ID: <d5cc2254-6500-c4bb-3284-da397b6b3a5a@quicinc.com>
Date:   Fri, 29 Sep 2023 12:44:42 +0530
From:   Ekansh Gupta <quic_ekangupt@...cinc.com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     <srinivas.kandagatla@...aro.org>, <linux-arm-msm@...r.kernel.org>,
        <ekangupt@....qualcomm.com>, <linux-kernel@...r.kernel.org>,
        <fastrpc.upstream@....qualcomm.com>
Subject: Re: [PATCH v1] misc: fastrpc: Free DMA handles for RPC calls with no
 arguments



On 9/28/2023 6:35 PM, Greg KH wrote:
> On Thu, Aug 31, 2023 at 11:53:49AM +0530, Ekansh Gupta wrote:
>> The FDs for DMA handles to be freed is updated in fdlist by DSP over
>> a remote call. This holds true even for remote calls with no
>> arguments. To handle this, get_args and put_args are needed to
>> be called for remote calls with no arguments also as fdlist
>> is allocated in get_args and FDs updated in fdlist is freed
>> in put_args.
>>
>> Signed-off-by: Ekansh Gupta <quic_ekangupt@...cinc.com>
> 
> What commit id does this fix?  Or is this new functionality?
> 
I'll update the details in the next patch.

-ekansh
> thanks,
> 
> greg k-h