On 08/02/21, Jorge Ramirez-Ortiz, Foundries wrote:
> On 08/02/21, Jens Wiklander wrote:
> > Hi Jorge,
> >
> > On Wed, Jan 27, 2021 at 11:41 AM Jens Wiklander
> > <jens.wiklan...@linaro.org> wrote:
> > >
> > > Hi Arnd,
> > >
> > > On Mon, Jan 25, 2021 at 12:38 PM Arnd Bergmann <a...@kernel.org> wrote:
> > > >
> > > > From: Arnd Bergmann <a...@arndb.de>
> > > >
> > > > Storing a bogus i2c_client structure on the stack adds overhead and
> > > > causes a compile-time warning:
> > > >
> > > > drivers/tee/optee/rpc.c:493:6: error: stack frame size of 1056 bytes in
> > > > function 'optee_handle_rpc' [-Werror,-Wframe-larger-than=]
> > > > void optee_handle_rpc(struct tee_context *ctx, struct optee_rpc_param
> > > > *param,
> > > >
> > > > Change the implementation of handle_rpc_func_cmd_i2c_transfer() to
> > > > open-code the i2c_transfer() call, which makes it easier to read
> > > > and avoids the warning.
> > > >
> > > > Fixes: c05210ab9757 ("drivers: optee: allow op-tee to access devices on
> > > > the i2c bus")
> > > > Signed-off-by: Arnd Bergmann <a...@arndb.de>
> > > > ---
> > > > drivers/tee/optee/rpc.c | 31 ++++++++++++++++---------------
> > > > 1 file changed, 16 insertions(+), 15 deletions(-)
> > >
> > > Looks good to me.
> > > Reviewed-by: Jens Wiklander <jens.wiklan...@linaro.org>
> >
> > Would you mind testing this?
>
> sure, doing it this morning.
>
> btw what Arnd has done - removing the unnecessary level of indirection
> - was pretty much my initial though but I thought it was easier to
> read the way I wrote it (I guess I was wrong and I obviously missed
> the stack size increase)
>
> but yes, will test
Tested on imx6ull.
Tested-by: Jorge Ramirez-Ortiz <jo...@foundries.io>
>
> >
> > Thanks,
> > Jens
