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i40e: Add programming descriptors to cleaned_count

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This patch updates the i40e driver to include programming descriptors in
the cleaned_count. Without this change it becomes possible for us to leak
memory as we don't trigger a large enough allocation when the time comes to
allocate new buffers and we end up overwriting a number of rx_buffers equal
to the number of programming descriptors we encountered.

Fixes: 0e626ff7ccbf ("i40e: Fix support for flow director programming status")
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Anders K. Pedersen <akp@cohaesio.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2017-10-21 18:12:29 -07:00 committed by Jeff Kirsher
parent 10781348ca
commit 62b4c6694d
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/intel/i40e/i40e_txrx.c
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@ -2102,6 +2102,7 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
if (unlikely(i40e_rx_is_programming_status(qword))) {
i40e_clean_programming_status(rx_ring, rx_desc, qword);
cleaned_count++;
continue;
}
size = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) >>