From: Andrew Rybchenko <arybchenko@solarflare.com>
To: <dev@dpdk.org>
Cc: <stable@dpdk.org>
Subject: [dpdk-dev] [PATCH] net/sfc: fix mbuf data alignment calculation
Date: Mon, 19 Mar 2018 07:50:11 +0000 [thread overview]
Message-ID: <1521445811-2137-1-git-send-email-arybchenko@solarflare.com> (raw)
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(-)
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
--
2.7.4
next reply other threads:[~2018-03-19 7:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-19 7:50 Andrew Rybchenko [this message]
2018-03-27 18:37 ` [dpdk-dev] [dpdk-stable] " Ferruh Yigit
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