linux-kernel - [PATCH v2] net: neterion: vxge: reduce stack usage in VXGE_COMPLETE_VPATH

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Date:   Mon, 20 Jul 2020 09:58:39 +0800
From:   Bixuan Cui <cuibixuan@...wei.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
CC:     <davem@...emloft.net>, <kuba@...nel.org>,
        <linux-next@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <netdev@...r.kernel.org>, <jdmason@...zu.us>,
        <christophe.jaillet@...adoo.fr>, <john.wanghui@...wei.com>
Subject: [PATCH v2] net: neterion: vxge: reduce stack usage in
 VXGE_COMPLETE_VPATH_TX

Fix the warning: [-Werror=-Wframe-larger-than=]

drivers/net/ethernet/neterion/vxge/vxge-main.c:
In function'VXGE_COMPLETE_VPATH_TX.isra.37':
drivers/net/ethernet/neterion/vxge/vxge-main.c:119:1:
warning: the frame size of 1056 bytes is larger than 1024 bytes

Dropping the NR_SKB_COMPLETED to 16 is appropriate that won't
have much impact on performance and functionality.

Signed-off-by: Bixuan Cui <cuibixuan@...wei.com>
Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
---
v2: Dropping the NR_SKB_COMPLETED to 16.

 drivers/net/ethernet/neterion/vxge/vxge-main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index b0faa737b817..f905d0fe7d54 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -98,7 +98,7 @@ static inline void VXGE_COMPLETE_VPATH_TX(struct vxge_fifo *fifo)
 {
 	struct sk_buff **skb_ptr = NULL;
 	struct sk_buff **temp;
-#define NR_SKB_COMPLETED 128
+#define NR_SKB_COMPLETED 16
 	struct sk_buff *completed[NR_SKB_COMPLETED];
 	int more;

--
2.17.1


.