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

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Message-ID: <20241024-cryptic-giga-mole-54e2b5-mkl@pengutronix.de>
Date: Thu, 24 Oct 2024 16:20:20 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: Ming Yu <a0282524688@...il.com>
Cc: tmyu0@...oton.com, lee@...nel.org, linus.walleij@...aro.org, 
	brgl@...ev.pl, andi.shyti@...nel.org, mailhol.vincent@...adoo.fr, 
	andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, 
	pabeni@...hat.com, wim@...ux-watchdog.org, linux@...ck-us.net, jdelvare@...e.com, 
	jic23@...nel.org, lars@...afoo.de, ukleinek@...nel.org, 
	alexandre.belloni@...tlin.com, linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org, 
	linux-i2c@...r.kernel.org, linux-can@...r.kernel.org, netdev@...r.kernel.org, 
	linux-watchdog@...r.kernel.org, linux-hwmon@...r.kernel.org, linux-iio@...r.kernel.org, 
	linux-pwm@...r.kernel.org, linux-rtc@...r.kernel.org
Subject: Re: [PATCH v1 4/9] can: Add Nuvoton NCT6694 CAN support

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@...oton.com>
> > ---
> >  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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