can: m_can: remove a copy of the NAPI_POLL_WEIGHT define

Defining local versions of NAPI_POLL_WEIGHT with the same values in
the drivers just makes refactoring harder.

Link: https://lore.kernel.org/all/20220429174446.196655-1-kuba@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

drivers/net/can/m_can/m_can.c

@@ -77,9 +77,6 @@ enum m_can_reg {
 	M_CAN_TXEFA	= 0xf8,
 };
 
-/* napi related */
-#define M_CAN_NAPI_WEIGHT	64
-
 /* message ram configuration data length */
 #define MRAM_CFG_LEN	8
 
@@ -951,7 +948,7 @@ static int m_can_rx_peripheral(struct net_device *dev)
 	struct m_can_classdev *cdev = netdev_priv(dev);
 	int work_done;
 
-	work_done = m_can_rx_handler(dev, M_CAN_NAPI_WEIGHT);
+	work_done = m_can_rx_handler(dev, NAPI_POLL_WEIGHT);
 
 	/* Don't re-enable interrupts if the driver had a fatal error
 	 * (e.g., FIFO read failure).
@@ -1474,7 +1471,7 @@ static int m_can_dev_setup(struct m_can_classdev *cdev)
 
 	if (!cdev->is_peripheral)
 		netif_napi_add(dev, &cdev->napi,
-			       m_can_poll, M_CAN_NAPI_WEIGHT);
+			       m_can_poll, NAPI_POLL_WEIGHT);
 
 	/* Shared properties of all M_CAN versions */
 	cdev->version = m_can_version;
@@ -1994,7 +1991,7 @@ int m_can_class_register(struct m_can_classdev *cdev)
 
 	if (cdev->is_peripheral) {
 		ret = can_rx_offload_add_manual(cdev->net, &cdev->offload,
-						M_CAN_NAPI_WEIGHT);
+						NAPI_POLL_WEIGHT);
 		if (ret)
 			goto clk_disable;
 	}