[PATCH] net: stmmac: make variable data a u32

From: Colin Ian King
Date: Mon Aug 11 2025 - 07:13:04 EST


Make data a u32 instead of an unsigned long, this way it is
explicitly the same width as the operations performed on it
and the same width as a writel store, and it cleans up sign
extention warnings when 64 bit static analysis is performed
on the code.

Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
index 4846bf49c576..467f1a05747e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
@@ -251,7 +251,7 @@ void dwmac_dma_flush_tx_fifo(void __iomem *ioaddr)
void stmmac_set_mac_addr(void __iomem *ioaddr, const u8 addr[6],
unsigned int high, unsigned int low)
{
- unsigned long data;
+ u32 data;

data = (addr[5] << 8) | addr[4];
/* For MAC Addr registers we have to set the Address Enable (AE)
--
2.50.1