linux-kernel - Re: [PATCH 1/4] misc: fastrpc: Save actual DMA size in fastrpc

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Message-ID: <2025091212-umpire-large-b601@gregkh>
Date: Fri, 12 Sep 2025 16:22:39 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: srini@...nel.org, linux-kernel@...r.kernel.org,
	Ling Xu <quic_lxu5@...cinc.com>, stable@...nel.org,
	Ekansh Gupta <ekansh.gupta@....qualcomm.com>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: Re: [PATCH 1/4] misc: fastrpc: Save actual DMA size in fastrpc_map
 structure

On Fri, Sep 12, 2025 at 04:30:37PM +0300, Dmitry Baryshkov wrote:
> On 12/09/2025 16:12, srini@...nel.org wrote:
> > From: Ling Xu <quic_lxu5@...cinc.com>
> > 
> > For user passed fd buffer, map is created using DMA calls. The
> > map related information is stored in fastrpc_map structure. The
> > actual DMA size is not stored in the structure. Store the actual
> > size of buffer and check it against the user passed size.
> > 
> > Fixes: c68cfb718c8f ("misc: fastrpc: Add support for context Invoke method")
> > Cc: stable@...nel.org
> > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> > Co-developed-by: Ekansh Gupta <ekansh.gupta@....qualcomm.com>
> > Signed-off-by: Ekansh Gupta <ekansh.gupta@....qualcomm.com>
> > Signed-off-by: Ling Xu <quic_lxu5@...cinc.com>
> > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> > Signed-off-by: Srinivas Kandagatla <srini@...nel.org>
> > ---
> >   drivers/misc/fastrpc.c | 27 ++++++++++++++++++---------
> >   1 file changed, 18 insertions(+), 9 deletions(-)
> > 
> 
> Please use correct CC list when sending patches. You've missed several
> entries from the MAINTAINERS file.

This is just to send these patches for me for my tree, it's not really a
normal "review" as that should have already happened (based on the
signed-off-by chain above.)

thanks,
greg k-h