Commit 03f51719 authored by Fabio M. De Francesco's avatar Fabio M. De Francesco Committed by Tony Nguyen
Browse files

ixgbe: Don't call kmap() on page allocated with GFP_ATOMIC 



Pages allocated with GFP_ATOMIC cannot come from Highmem. This is why
there is no need to call kmap() on them.

Therefore, don't call kmap() on rx_buffer->page() and instead use a
plain page_address() to get the kernel address.

Suggested-by: default avatarIra Weiny <ira.weiny@intel.com>
Suggested-by: default avatarAlexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: default avatarFabio M. De Francesco <fmdefrancesco@gmail.com>
Reviewed-by: default avatarIra Weiny <ira.weiny@intel.com>
Reviewed-by: default avatarAlexander Duyck <alexanderduyck@fb.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent e34cfee6

drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c

+1 −3
Original line number Diff line number Diff line
@@ -1964,15 +1964,13 @@ static bool ixgbe_check_lbtest_frame(struct ixgbe_rx_buffer *rx_buffer, 


	frame_size >>= 1;



	data = kmap(rx_buffer->page) + rx_buffer->page_offset;

	data = page_address(rx_buffer->page) + rx_buffer->page_offset;



	if (data[3] != 0xFF ||

	    data[frame_size + 10] != 0xBE ||

	    data[frame_size + 12] != 0xAF)

		match = false;



	kunmap(rx_buffer->page);



	return match;

}