lkml.org 
[lkml]   [2023]   [Dec]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V2 03/12 net-next] qca_spi: Avoid skb_copy_expand in TX path
Date
The skb spare room needs to be expanded for SPI header, footer
and possible padding within the TX path. So announce the necessary
space in order to avoid expensive skb_copy_expand calls.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
drivers/net/ethernet/qualcomm/qca_spi.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/qualcomm/qca_spi.c b/drivers/net/ethernet/qualcomm/qca_spi.c
index 294d4ee3b38f..919a400412cb 100644
--- a/drivers/net/ethernet/qualcomm/qca_spi.c
+++ b/drivers/net/ethernet/qualcomm/qca_spi.c
@@ -877,6 +877,8 @@ qcaspi_netdev_setup(struct net_device *dev)
qcaspi_set_ethtool_ops(dev);
dev->watchdog_timeo = QCASPI_TX_TIMEOUT;
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
+ dev->needed_tailroom = ALIGN(QCAFRM_FOOTER_LEN + QCAFRM_MIN_LEN, 4);
+ dev->needed_headroom = ALIGN(QCAFRM_HEADER_LEN, 4);
dev->tx_queue_len = 100;

/* MTU range: 46 - 1500 */
--
2.34.1

\
 
 \ /
  Last update: 2023-12-19 00:28    [W:0.177 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site