igb: Re-add support for build_skb in igb
authorAlexander Duyck <alexander.h.duyck@intel.com>
Tue, 7 Feb 2017 02:27:36 +0000 (18:27 -0800)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Fri, 17 Mar 2017 19:11:44 +0000 (12:11 -0700)
commitb1bb2eb0a0deb03e9847d8e29eb1e75ce141e4d9
tree65272763a1cdb6c9afb9587738bd004fd1c6fd4d
parente014272672b964471608a2624e4cdf1d5e7c22ea
igb: Re-add support for build_skb in igb

This reverts commit f9d40f6a9921 ("igb: Revert support for build_skb in
igb") and adds a few changes to update it to work with the latest version
of igb. We are now able to revert the removal of this due to the fact
that with the recent changes to the page count and the use of
DMA_ATTR_SKIP_CPU_SYNC we can make the pages writable so we should not be
invalidating the additional data added when we call build_skb.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/igb/igb_main.c