2016-04-01 09:15:27

by Jisheng Zhang

Subject: [PATCH] net: mvpp2: use cache_line_size() to get cacheline size

L1_CACHE_BYTES may not be the real cacheline size, use cache_line_size
to determine the cacheline size in runtime.

Signed-off-by: Jisheng Zhang <[email protected]>
Suggested-by: Marcin Wojtas <[email protected]>
---
drivers/net/ethernet/marvell/mvpp2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index 05f358b..23f3c08 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -376,7 +376,7 @@

#define MVPP2_RX_PKT_SIZE(mtu) \
ALIGN((mtu) + MVPP2_MH_SIZE + MVPP2_VLAN_TAG_LEN + \
- ETH_HLEN + ETH_FCS_LEN, L1_CACHE_BYTES)
+ ETH_HLEN + ETH_FCS_LEN, cache_line_size())

#define MVPP2_RX_BUF_SIZE(pkt_size) ((pkt_size) + NET_SKB_PAD)
#define MVPP2_RX_TOTAL_SIZE(buf_size) ((buf_size) + MVPP2_SKB_SHINFO_SIZE)
--
2.8.0.rc3

2016-04-01 18:43:59

by David Miller

Subject: Re: [PATCH] net: mvpp2: use cache_line_size() to get cacheline size

From: Jisheng Zhang <[email protected]>
Date: Fri, 1 Apr 2016 17:11:05 +0800

> L1_CACHE_BYTES may not be the real cacheline size, use cache_line_size
> to determine the cacheline size in runtime.
>
> Signed-off-by: Jisheng Zhang <[email protected]>
> Suggested-by: Marcin Wojtas <[email protected]>

Applied.