Looks like a problem, please check. julia
> >> drivers/net/phy/marvell.c:1037:5-8: WARNING: Unsigned expression compared > >> with zero: val < 0 > > git remote add linus > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git remote update linus > git checkout d2fa47d9dd5c5f82d78c4503cf33989f67e8aa64 > vim +1037 drivers/net/phy/marvell.c > > d2fa47d9 Andrew Lunn 2015-12-30 1021 #define UINT64_MAX > (u64)(~((u64)0)) > d2fa47d9 Andrew Lunn 2015-12-30 1022 #endif > d2fa47d9 Andrew Lunn 2015-12-30 1023 static u64 marvell_get_stat(struct > phy_device *phydev, int i) > d2fa47d9 Andrew Lunn 2015-12-30 1024 { > d2fa47d9 Andrew Lunn 2015-12-30 1025 struct marvell_hw_stat stat = > marvell_hw_stats[i]; > d2fa47d9 Andrew Lunn 2015-12-30 1026 struct marvell_priv *priv = > phydev->priv; > d2fa47d9 Andrew Lunn 2015-12-30 1027 int err, oldpage; > d2fa47d9 Andrew Lunn 2015-12-30 1028 u64 val; > d2fa47d9 Andrew Lunn 2015-12-30 1029 > d2fa47d9 Andrew Lunn 2015-12-30 1030 oldpage = phy_read(phydev, > MII_MARVELL_PHY_PAGE); > d2fa47d9 Andrew Lunn 2015-12-30 1031 err = phy_write(phydev, > MII_MARVELL_PHY_PAGE, > d2fa47d9 Andrew Lunn 2015-12-30 1032 stat.page); > d2fa47d9 Andrew Lunn 2015-12-30 1033 if (err < 0) > d2fa47d9 Andrew Lunn 2015-12-30 1034 return UINT64_MAX; > d2fa47d9 Andrew Lunn 2015-12-30 1035 > d2fa47d9 Andrew Lunn 2015-12-30 1036 val = phy_read(phydev, > stat.reg); > d2fa47d9 Andrew Lunn 2015-12-30 @1037 if (val < 0) { > d2fa47d9 Andrew Lunn 2015-12-30 1038 val = UINT64_MAX; > d2fa47d9 Andrew Lunn 2015-12-30 1039 } else { > d2fa47d9 Andrew Lunn 2015-12-30 1040 val = val & ((1 << > stat.bits) - 1); > d2fa47d9 Andrew Lunn 2015-12-30 1041 priv->stats[i] += val; > d2fa47d9 Andrew Lunn 2015-12-30 1042 val = priv->stats[i]; > d2fa47d9 Andrew Lunn 2015-12-30 1043 } > d2fa47d9 Andrew Lunn 2015-12-30 1044 > d2fa47d9 Andrew Lunn 2015-12-30 1045 phy_write(phydev, > MII_MARVELL_PHY_PAGE, oldpage); > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation >
