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(parent: 3087796) | patch
net: macb: Fix ptp time adjustment for large negative delta
authorHarini Katakam <harini.katakam@xilinx.com>
Wed, 20 Jun 2018 11:34:20 +0000 (17:04 +0530)
committerDavid S. Miller <davem@davemloft.net>
Thu, 21 Jun 2018 06:01:06 +0000 (15:01 +0900)
commit64d7839af8c8f67daaf9bf387135052c55d85f90
tree7d59de6ffe0b966393e97ad77dff7944c9b158e5tree | snapshot
parent30877961b1cdd6fdca783c2e8c4f0f47e95dc58ccommit | diff
net: macb: Fix ptp time adjustment for large negative delta

When delta passed to gem_ptp_adjtime is negative, the sign is
maintained in the ns_to_timespec64 conversion. Hence timespec_add
should be used directly. timespec_sub will just subtract the negative
value thus increasing the time difference.

Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/cadence/macb_ptp.c diff | blob | history
wrapfs-5.3.y