[Intel-wired-lan] [jkirsher/net-queue PATCH] ixgbe: Fix Tx map failure path

[Bowers, AndrewX]

> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Alexander Duyck
> Sent: Thursday, October 19, 2017 2:07 PM
> To: intel-wired-lan at lists.osuosl.org; Kirsher, Jeffrey T
> <jeffrey.t.kirsher at intel.com>
> Subject: [Intel-wired-lan] [jkirsher/net-queue PATCH] ixgbe: Fix Tx map
> failure path
> 
> This patch is a partial revert of "ixgbe: Don't bother clearing buffer memory
> for descriptor rings". Specifically I messed up the exception handling path a
> bit and this resulted in us incorrectly adding the count back in when we didn't
> need to.
> 
> In order to make this simpler I am reverting most of the exception handling
> path change and instead just replacing the bit that was handled by the
> unmap_and_free call.
> 
> Fixes: ffed21bcee7a ("ixgbe: Don't bother clearing buffer memory for
> descriptor rings")
> Signed-off-by: Alexander Duyck <alexander.h.duyck at intel.com>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |   18 ++++++------------
>  1 file changed, 6 insertions(+), 12 deletions(-)

Tested-by: Andrew Bowers <andrewx.bowers at intel.com>