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| author | Florian Fainelli <f.fainelli@gmail.com> | 2019-10-05 15:05:18 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-10 11:25:30 +0100 |
| commit | 12300056a6e98f7d845ae8952bd958c4f906b784 (patch) | |
| tree | 5f95a74e6bebc8e521ed6b003fec629d25bedd67 | |
| parent | bc8f227bdb31a2d1640430bd6fe6695527c37d96 (diff) | |
| download | linux-stable-12300056a6e98f7d845ae8952bd958c4f906b784.tar.gz linux-stable-12300056a6e98f7d845ae8952bd958c4f906b784.tar.bz2 linux-stable-12300056a6e98f7d845ae8952bd958c4f906b784.zip | |
net: dsa: b53: Do not clear existing mirrored port mask
[ Upstream commit c763ac436b668d7417f0979430ec0312ede4093d ]
Clearing the existing bitmask of mirrored ports essentially prevents us
from capturing more than one port at any given time. This is clearly
wrong, do not clear the bitmask prior to setting up the new port.
Reported-by: Hubert Feurstein <h.feurstein@gmail.com>
Fixes: ed3af5fd08eb ("net: dsa: b53: Add support for port mirroring")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/dsa/b53/b53_common.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index acf64d4cd94c..434e6dced6b7 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1431,7 +1431,6 @@ int b53_mirror_add(struct dsa_switch *ds, int port, loc = B53_EG_MIR_CTL; b53_read16(dev, B53_MGMT_PAGE, loc, ®); - reg &= ~MIRROR_MASK; reg |= BIT(port); b53_write16(dev, B53_MGMT_PAGE, loc, reg); |