2016-04-01 09:17:07

by Jisheng Zhang

Subject: [PATCH] net: mvneta: 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/mvneta.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 5880871..b1db000 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -299,7 +299,7 @@
#define MVNETA_RX_PKT_SIZE(mtu) \
ALIGN((mtu) + MVNETA_MH_SIZE + MVNETA_VLAN_TAG_LEN + \
ETH_HLEN + ETH_FCS_LEN, \
- L1_CACHE_BYTES)
+ cache_line_size())

#define IS_TSO_HEADER(txq, addr) \
((addr >= txq->tso_hdrs_phys) && \
--
2.8.0.rc3

2016-04-01 18:44:05

by David Miller

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

From: Jisheng Zhang <[email protected]>
Date: Fri, 1 Apr 2016 17:12:49 +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.