Re: [PATCH v1 4/9] can: Add Nuvoton NCT6694 CAN support

[Marc Kleine-Budde]

On 24.10.2024 16:17:52, Marc Kleine-Budde wrote:
> On 24.10.2024 16:59:17, Ming Yu wrote:
> > This driver supports Socket CANfd functionality for NCT6694 MFD
> > device based on USB interface.
> > 
> > Signed-off-by: Ming Yu <tmyu0@xxxxxxxxxxx>
> > ---
> >  MAINTAINERS                     |   1 +
> >  drivers/net/can/Kconfig         |  10 +
> >  drivers/net/can/Makefile        |   1 +
> >  drivers/net/can/nct6694_canfd.c | 843 ++++++++++++++++++++++++++++++++

|   CC [M]  drivers/net/can/nct6694_canfd.o
| drivers/net/can/nct6694_canfd.c: In function ‘nct6694_canfd_start_xmit’:
| drivers/net/can/nct6694_canfd.c:282:22: error: variable ‘echo_byte’ set but not used [-Werror=unused-but-set-variable]
|   282 |         unsigned int echo_byte;
|       |                      ^~~~~~~~~
| drivers/net/can/nct6694_canfd.c: In function ‘nct6694_canfd_rx_work’:
| drivers/net/can/nct6694_canfd.c:677:34: error: variable ‘stats’ set but not used [-Werror=unused-but-set-variable]
|   677 |         struct net_device_stats *stats;
|       |                                  ^~~~~
| cc1: all warnings being treated as errors

If compiling with C=1, sparse throws the following errors:

| drivers/net/can/nct6694_canfd.c:417:14: warning: cast to restricted __le32
| drivers/net/can/nct6694_canfd.c:750:9: warning: cast to restricted __le32
| drivers/net/can/nct6694_canfd.c:777:32: warning: cast to restricted __le32

Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde          |
Embedded Linux                   | https://www.pengutronix.de |
Vertretung Nürnberg              | Phone: +49-5121-206917-129 |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-9   |

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