diff mbox

[dpdk-dev] net/sfc: fix mbuf data alignment calculation

Message ID 1521445811-2137-1-git-send-email-arybchenko@solarflare.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Andrew Rybchenko March 19, 2018, 7:50 a.m. UTC 
  Unlike ffs() rte_bsf32() counts bit position from 0.

Fixes: 0c7a0c35f24c ("net/sfc: calculate Rx buffer size which may be used")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---
 drivers/net/sfc/sfc_rx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Ferruh Yigit March 27, 2018, 6:37 p.m. UTC | #1 
On 3/19/2018 7:50 AM, Andrew Rybchenko wrote:
> Unlike ffs() rte_bsf32() counts bit position from 0.
> 
> Fixes: 0c7a0c35f24c ("net/sfc: calculate Rx buffer size which may be used")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>

Applied to dpdk-next-net/master, thanks.
diff mbox

Patch

diff --git a/drivers/net/sfc/sfc_rx.c b/drivers/net/sfc/sfc_rx.c
index abc53fb..64bc9d4 100644
--- a/drivers/net/sfc/sfc_rx.c
+++ b/drivers/net/sfc/sfc_rx.c
@@ -887,7 +887,7 @@  sfc_rx_mbuf_data_alignment(struct rte_mempool *mb_pool)
 
 	order = MIN(order, rte_bsf32(data_off));
 
-	return 1u << (order - 1);
+	return 1u << order;
 }
 
 static uint16_t