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authorFlorian Fainelli <f.fainelli@gmail.com>2014-07-21 17:42:39 -0700
committerDavid S. Miller <davem@davemloft.net>2014-07-21 19:49:11 -0700
commit240524089d7a5c0396656574e299beb3a55461e3 (patch)
tree21f67515090c5233e3480600af7b95aa2f953985 /drivers/s390/net/qeth_core_sys.c
parentbb1fed7110c287024dce6bee8152aad903104d96 (diff)
downloadlinux-240524089d7a5c0396656574e299beb3a55461e3.tar.bz2
net: bcmgenet: only update UMAC_CMD if something changed
The link adjustment callback can be called as frequently as desired by the PHY library, as such, let's avoid doing a Read/Modify/Write sequence if nothing changed, since these register accesses can be expensive. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net/qeth_core_sys.c')
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