netdev - [PATCH net-next 2/6 v2] ixp4xx

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Message-Id: <20210813220011.921211-3-linus.walleij@linaro.org>
Date:   Sat, 14 Aug 2021 00:00:07 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     Imre Kaloz <kaloz@...nwrt.org>, Krzysztof Halasa <khalasa@...p.pl>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH net-next 2/6 v2] ixp4xx_eth: fix compile-testing

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

Change the driver to use portable integer types to avoid warnings
during compile testing, including:

drivers/net/ethernet/xscale/ixp4xx_eth.c:721:21: error: cast to 'u32 *' (aka 'unsigned int *') from smaller integer type 'int' [-Werror,-Wint-to-pointer-cast]
        memcpy_swab32(mem, (u32 *)((int)skb->data & ~3), bytes / 4);
                           ^
drivers/net/ethernet/xscale/ixp4xx_eth.c:963:12: error: incompatible pointer types passing 'u32 *' (aka 'unsigned int *') to parameter of type 'dma_addr_t *' (aka 'unsigned long long *') [-Werror,-Wincompatible-pointer-types]
                                              &port->desc_tab_phys)))
                                              ^~~~~~~~~~~~~~~~~~~~
include/linux/dmapool.h:27:20: note: passing argument to parameter 'handle' here
                     dma_addr_t *handle);
                                 ^

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 drivers/net/ethernet/xscale/ixp4xx_eth.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index 0bd22beb83ed..931494cc1c39 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -37,7 +37,6 @@
 #include <linux/module.h>
 #include <linux/soc/ixp4xx/npe.h>
 #include <linux/soc/ixp4xx/qmgr.h>
-#include <mach/hardware.h>
 #include <linux/soc/ixp4xx/cpu.h>
 
 #include "ixp46x_ts.h"
@@ -177,7 +176,7 @@ struct port {
 	struct eth_plat_info *plat;
 	buffer_t *rx_buff_tab[RX_DESCS], *tx_buff_tab[TX_DESCS];
 	struct desc *desc_tab;	/* coherent */
-	u32 desc_tab_phys;
+	dma_addr_t desc_tab_phys;
 	int id;			/* logical port ID */
 	int speed, duplex;
 	u8 firmware[4];
@@ -857,14 +856,14 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev)
 	bytes = len;
 	mem = skb->data;
 #else
-	offset = (int)skb->data & 3; /* keep 32-bit alignment */
+	offset = (uintptr_t)skb->data & 3; /* keep 32-bit alignment */
 	bytes = ALIGN(offset + len, 4);
 	if (!(mem = kmalloc(bytes, GFP_ATOMIC))) {
 		dev_kfree_skb(skb);
 		dev->stats.tx_dropped++;
 		return NETDEV_TX_OK;
 	}
-	memcpy_swab32(mem, (u32 *)((int)skb->data & ~3), bytes / 4);
+	memcpy_swab32(mem, (u32 *)((uintptr_t)skb->data & ~3), bytes / 4);
 #endif
 
 	phys = dma_map_single(&dev->dev, mem, bytes, DMA_TO_DEVICE);
-- 
2.31.1