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net: mii: report 0 for unknown lp_advertising

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The newly introduced mii_ethtool_get_link_ksettings function sets
lp_advertising to an uninitialized value when BMCR_ANENABLE is not
set:

drivers/net/mii.c: In function 'mii_ethtool_get_link_ksettings':
drivers/net/mii.c:224:2: error: 'lp_advertising' may be used uninitialized in this function [-Werror=maybe-uninitialized]

As documented in include/uapi/linux/ethtool.h, the value is
expected to be zero when we don't know it, so let's initialize
it to that.

Fixes: bc8ee596afe8 ("net: mii: add generic function to support ksetting support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnd Bergmann 2016-11-08 14:31:38 +01:00 committed by David S. Miller
parent 6c27f99d35
commit dc0b2c9cb4
1 changed files with 2 additions and 0 deletions
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2
drivers/net/mii.c
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@ -213,6 +213,8 @@ int mii_ethtool_get_link_ksettings(struct mii_if_info *mii,
SPEED_100 : SPEED_10));
cmd->base.duplex = (bmcr & BMCR_FULLDPLX) ?
DUPLEX_FULL : DUPLEX_HALF;
lp_advertising = 0;
}
mii->full_duplex = cmd->base.duplex;