From 59ec495f6c645c80d934034ffe48adb2ea75839a Mon Sep 17 00:00:00 2001 From: Jim Liu Date: Thu, 7 Aug 2025 13:28:32 +0800 Subject: [PATCH] net: designware: Fix get_timer value overflow get_timer returns a ulong value representing system time in ms. On a 64-bit system, this ulong value is 64 bits long. However, the driver stores it in a 32-bit unsigned integer, which overflows after 49 days up time, causing the driver to get an incorrect time. Replace the unsigned int variable with a ulong type to properly store the value returned by get_timer. Signed-off-by: Stanley Chu Signed-off-by: Jim Liu --- drivers/net/designware.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/designware.c b/drivers/net/designware.c index fce3ef910cb..7ecedc3d7f0 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -486,7 +486,7 @@ static int dw_adjust_link(struct dw_eth_dev *priv, struct eth_mac_regs *mac_p, #ifdef CONFIG_ARCH_NPCM8XX if (phydev->interface == PHY_INTERFACE_MODE_SGMII) { - unsigned int start; + ulong start; /* Indirect access to VR_MII_MMD registers */ writew((VR_MII_MMD >> 9), PCS_BA + PCS_IND_AC); @@ -532,7 +532,7 @@ int designware_eth_init(struct dw_eth_dev *priv, u8 *enetaddr) { struct eth_mac_regs *mac_p = priv->mac_regs_p; struct eth_dma_regs *dma_p = priv->dma_regs_p; - unsigned int start; + ulong start; int ret; writel(readl(&dma_p->busmode) | DMAMAC_SRST, &dma_p->busmode); -- 2.47.2