net: stmmac: Fix TX timestamp calculation

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[ Upstream commit 200922c93f ]

When using GMAC4 the value written in PTP_SSIR should be shifted however
the shifted value is also used in subsequent calculations which results
in a bad timestamp value.

Signed-off-by: Fredrik Hallenberg <megahallon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Fredrik Hallenberg 2017-12-18 23:33:59 +01:00 • committed by Greg Kroah-Hartman

parent 3eeac1d10a

commit 06dcd2d77a

1 changed files with 4 additions and 2 deletions

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drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c

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