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Subject[PATCH net-next v3 03/12] net: stmmac: xgmac: Correctly return that RX descriptor is not last one
Date
Return the correct value when RX descriptor is not the last one.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>

---
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
index 58b69fa97837..2c1ed8c2a9d3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
@@ -26,16 +26,15 @@ static int dwxgmac2_get_rx_status(void *data, struct stmmac_extra_stats *x,
struct dma_desc *p)
{
unsigned int rdes3 = le32_to_cpu(p->des3);
- int ret = good_frame;

if (unlikely(rdes3 & XGMAC_RDES3_OWN))
return dma_own;
if (likely(!(rdes3 & XGMAC_RDES3_LD)))
+ return rx_not_ls;
+ if (unlikely((rdes3 & XGMAC_RDES3_ES) && (rdes3 & XGMAC_RDES3_LD)))
return discard_frame;
- if (unlikely(rdes3 & XGMAC_RDES3_ES))
- ret = discard_frame;

- return ret;
+ return good_frame;
}

static int dwxgmac2_get_tx_len(struct dma_desc *p)
--
2.7.4
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