From: Carolyn Wyborny <[email protected]> Register writes followed by a delay are required to have a flush before the delay in order to commit the values to the register. Without the flush, the code following the delay may not function correctly.
Reported-by: Tong Ho <[email protected]> Reported-by: Guenter Roeck <[email protected]> Signed-off-by: Carolyn Wyborny <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> --- Please apply to 2.6.32+. Upstream commit is 064b43304ed8ede8e13ff7b4338d09fd37bcffb1. Thanks, Guenter drivers/net/igb/e1000_82575.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c index 0f563c8..493e331 100644 --- a/drivers/net/igb/e1000_82575.c +++ b/drivers/net/igb/e1000_82575.c @@ -1735,6 +1735,7 @@ static s32 igb_reset_hw_82580(struct e1000_hw *hw) ctrl |= E1000_CTRL_RST; wr32(E1000_CTRL, ctrl); + wrfl(); /* Add delay to insure DEV_RST has time to complete */ if (global_device_reset) ----- End forwarded message ----- _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
