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authorIngo van Lil <inguin@gmx.de>2024-10-02 19:18:07 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-10-17 16:08:33 +0300
commit21b5af7f0c99b3bf1fd02016e6708b613acbcaf4 (patch)
treeb123cc565c713deab43855511c74e6d7433766e2
parentf892165c564e3aab272948dbb556cc20e290c55a (diff)
downloadlinux-21b5af7f0c99b3bf1fd02016e6708b613acbcaf4.tar.xz
net: phy: dp83869: fix memory corruption when enabling fiber
[ Upstream commit a842e443ca8184f2dc82ab307b43a8b38defd6a5 ] When configuring the fiber port, the DP83869 PHY driver incorrectly calls linkmode_set_bit() with a bit mask (1 << 10) rather than a bit number (10). This corrupts some other memory location -- in case of arm64 the priv pointer in the same structure. Since the advertising flags are updated from supported at the end of the function the incorrect line isn't needed at all and can be removed. Fixes: a29de52ba2a1 ("net: dp83869: Add ability to advertise Fiber connection") Signed-off-by: Ingo van Lil <inguin@gmx.de> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20241002161807.440378-1-inguin@gmx.de Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/net/phy/dp83869.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/phy/dp83869.c b/drivers/net/phy/dp83869.c
index 65b69ff35e40..01b593e0bb4a 100644
--- a/drivers/net/phy/dp83869.c
+++ b/drivers/net/phy/dp83869.c
@@ -610,7 +610,6 @@ static int dp83869_configure_fiber(struct phy_device *phydev,
phydev->supported);
linkmode_set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, phydev->supported);
- linkmode_set_bit(ADVERTISED_FIBRE, phydev->advertising);
if (dp83869->mode == DP83869_RGMII_1000_BASE) {
linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseX_Full_BIT,