Messages in this thread |  | | From | Jens Wiklander <> | Date | Mon, 8 Feb 2021 09:54:34 +0100 | Subject | Re: [PATCH] optee: simplify i2c access |
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On Mon, Feb 8, 2021 at 9:32 AM Jorge Ramirez-Ortiz, Foundries <jorge@foundries.io> wrote: > > 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.wiklander@linaro.org> wrote: > > > > > > > > Hi Arnd, > > > > > > > > On Mon, Jan 25, 2021 at 12:38 PM Arnd Bergmann <arnd@kernel.org> wrote: > > > > > > > > > > From: Arnd Bergmann <arnd@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 <arnd@arndb.de> > > > > > --- > > > > > drivers/tee/optee/rpc.c | 31 ++++++++++++++++--------------- > > > > > 1 file changed, 16 insertions(+), 15 deletions(-) > > > > > > > > Looks good to me. > > > > Reviewed-by: Jens Wiklander <jens.wiklander@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 <jorge@foundries.io>
Thank you.
Cheers, Jens
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