a7y18lte-ubports/android_kernel_samsung_universal7885
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smsc75xx: fix smsc75xx_set_features()

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[ Upstream commit 88e80c62671ceecdbb77c902731ec95a4bfa62f9 ]

If an attempt is made to disable RX checksums, USB adapter is changed
but netdev->features is not, because smsc75xx_set_features() returns a
non zero value.

This throws errors from netdev_rx_csum_fault() :
<devname>: hw csum failure

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Eric Dumazet 2018-02-20 21:42:26 -08:00 committed by Greg Kroah-Hartman
parent 235968be2f
commit 65f2b43fab
1 changed files with 4 additions and 3 deletions
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7
drivers/net/usb/smsc75xx.c
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@ -945,10 +945,11 @@ static int smsc75xx_set_features(struct net_device *netdev,
/* it's racing here! */
ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
if (ret < 0)
if (ret < 0) {
netdev_warn(dev->net, "Error writing RFE_CTL\n");
return ret;
return ret;
}
return 0;
}
static int smsc75xx_wait_ready(struct usbnet *dev, int in_pm)