linux-kernel - Re: [PATCH] can: janz-ican3: Fix a typo error for DESC

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Message-ID: <20251112-interesting-loutish-booby-aaf75f-mkl@pengutronix.de>
Date: Wed, 12 Nov 2025 09:51:32 +0100
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: Chu Guangqing <chuguangqing@...pur.com>
Cc: mailhol@...nel.org, linux-can@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] can: janz-ican3: Fix a typo error for DESC_INVALID

On 03.11.2025 14:49:34, Chu Guangqing wrote:
> The macro definition DESC_IVALID should be DESC_INVALID, as there is a
> spelling error here.

Have you taken a look at the manual? Does it talk about IVALID or
INVALID?

regards,
Marc

> Signed-off-by: Chu Guangqing <chuguangqing@...pur.com>
> ---
>  drivers/net/can/janz-ican3.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c
> index 1efdd1fd8caa..7ae1f4ba4627 100644
> --- a/drivers/net/can/janz-ican3.c
> +++ b/drivers/net/can/janz-ican3.c
> @@ -62,7 +62,7 @@
>  #define DESC_VALID		0x80
>  #define DESC_WRAP		0x40
>  #define DESC_INTERRUPT		0x20
> -#define DESC_IVALID		0x10
> +#define DESC_INVALID		0x10
>  #define DESC_LEN(len)		(len)
>
>  /* Janz ICAN3 Firmware Messages */
> @@ -1723,11 +1723,11 @@ static netdev_tx_t ican3_xmit(struct sk_buff *skb, struct net_device *ndev)
>  	ican3_put_echo_skb(mod, skb);
>
>  	/*
> -	 * the programming manual says that you must set the IVALID bit, then
> +	 * the programming manual says that you must set the INVALID bit, then
>  	 * interrupt, then set the valid bit. Quite weird, but it seems to be
>  	 * required for this to work
>  	 */
> -	desc.control |= DESC_IVALID;
> +	desc.control |= DESC_INVALID;
>  	memcpy_toio(desc_addr, &desc, sizeof(desc));
>
>  	/* generate a MODULbus interrupt to the microcontroller */
> --
> 2.43.7
>
>
>

-- 
Pengutronix e.K.                 | Marc Kleine-Budde          |
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