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authorDavid S. Miller <davem@davemloft.net>2018-02-16 15:37:10 -0500
committerDavid S. Miller <davem@davemloft.net>2018-02-16 15:37:10 -0500
commite5fe068a50fc66a4e4f283859e7e510dbf143f3e (patch)
treebbd95defbeab98303a0b443ed7e1cb7420a33986 /crypto/pcbc.c
parent65bd449c32c2745df61913ab54087e77f9d9b70d (diff)
parenta61e54063423e9e8d604ea54e6664433946fe6af (diff)
downloadlinux-e5fe068a50fc66a4e4f283859e7e510dbf143f3e.tar.bz2
Merge branch 'dsa-mv88e6xxx-Improve-PTP-access-latency'
Andrew Lunn says: ==================== net: dsa: mv88e6xxx: Improve PTP access latency PTP needs to retrieve the hardware timestamps from the switch device in a low latency manor. However ethtool -S and bridge fdb show can hold the switch register access mutex for a long time. These patches changes the reading the statistics and the ATU so that the mutex is released and taken again between each statistic or ATU entry. The PTP code can then interleave its access to the hardware, keeping its latency low. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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