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Message-ID: <20230914041944.450751-1-Raju.Rangoju@amd.com> Date: Thu, 14 Sep 2023 09:49:44 +0530 From: Raju Rangoju <Raju.Rangoju@....com> To: <netdev@...r.kernel.org> CC: <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>, <Shyam-sundar.S-k@....com>, Raju Rangoju <Raju.Rangoju@....com> Subject: [PATCH net] amd-xgbe: read STAT1 register twice to get correct value Link status is latched low, so read once to clear and then read again to get current state. Fixes: 4f3b20bfbb75 ("amd-xgbe: add support for rx-adaptation") Signed-off-by: Raju Rangoju <Raju.Rangoju@....com> Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@....com> --- drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c index 6a716337f48b..c83085285e8c 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c @@ -2930,6 +2930,7 @@ static int xgbe_phy_link_status(struct xgbe_prv_data *pdata, int *an_restart) /* check again for the link and adaptation status */ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1); + reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1); if ((reg & MDIO_STAT1_LSTATUS) && pdata->rx_adapt_done) return 1; } else if (reg & MDIO_STAT1_LSTATUS) -- 2.25.1
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