From: Alexander Duyck Date: Sat, 21 Oct 2017 18:12:29 -0700 Subject: [Intel-wired-lan] [jkirsher/net-queue PATCH] i40e: Add programming descriptors to cleaned_count Message-ID: <20171022011222.12997.53593.stgit@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: intel-wired-lan@osuosl.org List-ID: From: Alexander Duyck 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 --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 368722defacb..d6d352a6e6ea 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -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) >>