Re: [PATCH v1] media: si2168: Refactor command setup code

Marc Gonzalez
2019-07-02T08:37:33Z

On 01/07/2019 13:44, Marc Gonzalez wrote:

> By refactoring the command setup code, we can let the compiler
> determine the size of each command.
>
> Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
> ---
> drivers/media/dvb-frontends/si2168.c | 142 ++++++++-------------------
> 1 file changed, 41 insertions(+), 101 deletions(-)
>
> diff --git a/drivers/media/dvb-frontends/si2168.c b/drivers/media/dvb-frontends/si2168.c
> index 168c503e9154..19398f041c79 100644
> --- a/drivers/media/dvb-frontends/si2168.c
> +++ b/drivers/media/dvb-frontends/si2168.c
> @@ -11,6 +11,12 @@
>
> static const struct dvb_frontend_ops si2168_ops;
>
> +#define CMD_SETUP(cmd, __args, __rlen) do { \
> + int wlen = sizeof(__args) - 1; \
> + memcpy(cmd.args, __args, wlen); \
> + cmd.wlen = wlen; cmd.rlen = __rlen; \
> +} while (0)
> +

I'm planning on sending a v2 where drivers/media/tuners/si2157.c
is refactored the same way. Not sure where to store the macro.
Maybe include/media/dvb_frontend.h ?

Regards.