[PATCH net] net: fec_mpc52xx: Fix resource size format

[Rosen Penev]

resource_size() is printed after casting to unsigned long, but
sizeof() returns size_t.

Use %zx for the sizeof() value so the format string matches the
argument type so that 64-bit builds compile.

Assisted-by: Codex:GPT-5.5
Fixes: 31b7720c8259 ("fec: Convert printks to netdev_<level>")
Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
---
 drivers/net/ethernet/freescale/fec_mpc52xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/fec_mpc52xx.c b/drivers/net/ethernet/freescale/fec_mpc52xx.c
index 556f646073af..a770e7edb1dc 100644
--- a/drivers/net/ethernet/freescale/fec_mpc52xx.c
+++ b/drivers/net/ethernet/freescale/fec_mpc52xx.c
@@ -834,7 +834,7 @@ static int mpc52xx_fec_probe(struct platform_device *op)
 		goto err_netdev;
 	}
 	if (resource_size(&mem) < sizeof(struct mpc52xx_fec)) {
-		pr_err("invalid resource size (%lx < %x), check mpc52xx_devices.c\n",
+		pr_err("invalid resource size (%lx < %zx), check mpc52xx_devices.c\n",
 		       (unsigned long)resource_size(&mem),
 		       sizeof(struct mpc52xx_fec));
 		rv = -EINVAL;
-- 
2.54.0