linux-kernel - [PATCH] can: bittiming: fix can_calc

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Date:   Wed,  8 Feb 2023 17:37:12 +0100
From:   Arnd Bergmann <arnd@...nel.org>
To:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Dario Binacchi <dario.binacchi@...rulasolutions.com>,
        linux-can@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] can: bittiming: fix can_calc_bittiming() dummy helper

From: Arnd Bergmann <arnd@...db.de>

The prototype for this function changed, but the alternative
implementation needs the same change:

drivers/net/can/dev/bittiming.c: In function 'can_get_bittiming':
drivers/net/can/dev/bittiming.c:145:24: error: too many arguments to function 'can_calc_bittiming'
  145 |                 return can_calc_bittiming(dev, bt, btc, extack);
      |                        ^~~~~~~~~~~~~~~~~~
In file included from include/linux/can/dev.h:18,
                 from drivers/net/can/dev/bittiming.c:7:
include/linux/can/bittiming.h:126:1: note: declared here
  126 | can_calc_bittiming(const struct net_device *dev, struct can_bittiming *bt,
      | ^~~~~~~~~~~~~~~~~~

Fixes: 286c0e09e8e0 ("can: bittiming: can_changelink() pass extack down callstack")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 include/linux/can/bittiming.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/can/bittiming.h b/include/linux/can/bittiming.h
index 6cb2ae308e3f..9b8a9c39614b 100644
--- a/include/linux/can/bittiming.h
+++ b/include/linux/can/bittiming.h
@@ -124,7 +124,7 @@ void can_calc_tdco(struct can_tdc *tdc, const struct can_tdc_const *tdc_const,
 #else /* !CONFIG_CAN_CALC_BITTIMING */
 static inline int
 can_calc_bittiming(const struct net_device *dev, struct can_bittiming *bt,
-		   const struct can_bittiming_const *btc)
+		   const struct can_bittiming_const *btc, struct netlink_ext_ack *extack)
 {
 	netdev_err(dev, "bit-timing calculation not available\n");
 	return -EINVAL;
-- 
2.39.1