linux-kernel - Re: [PATCH v5 4/4] net: can: rockchip: support dma for rk3576 rx

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Message-ID: <20250523-shrewd-berserk-sheep-315ac5-mkl@pengutronix.de>
Date: Fri, 23 May 2025 11:10:33 +0200
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: Elaine Zhang <zhangqing@...k-chips.com>
Cc: kernel@...gutronix.de, mailhol.vincent@...adoo.fr, robh@...nel.org, 
	krzk+dt@...nel.org, conor+dt@...nel.org, heiko@...ech.de, cl@...k-chips.com, 
	kever.yang@...k-chips.com, linux-can@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v5 4/4] net: can: rockchip: support dma for rk3576 rx

On 23.05.2025 15:54:22, Elaine Zhang wrote:
> The new can controller of rk3576 supports rx dma.

| drivers/net/can/rockchip/rockchip_canfd-rx.c:297:47: warning: incorrect type in argument 1 (different address spaces)
| drivers/net/can/rockchip/rockchip_canfd-rx.c:297:47:    expected void const volatile [noderef] __iomem *addr
| drivers/net/can/rockchip/rockchip_canfd-rx.c:297:47:    got unsigned int [usertype] *
| drivers/net/can/rockchip/rockchip_canfd-rx.c:299:44: warning: incorrect type in argument 1 (different address spaces)
| drivers/net/can/rockchip/rockchip_canfd-rx.c:299:44:    expected void const volatile [noderef] __iomem *addr
| drivers/net/can/rockchip/rockchip_canfd-rx.c:299:44:    got unsigned int [usertype] *
| drivers/net/can/rockchip/rockchip_canfd-rx.c:302:58: warning: incorrect type in argument 1 (different address spaces)
| drivers/net/can/rockchip/rockchip_canfd-rx.c:302:58:    expected void const volatile [noderef] __iomem *addr
| drivers/net/can/rockchip/rockchip_canfd-rx.c:302:58:    got unsigned int [usertype] *

Install "sparse" and compile with C=1.

regards,
Marc

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