From 0a8ef9ed7a16d42fe1c3bf4656312d875a7e1ce5 Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Sun, 28 Jan 2024 21:10:53 +0100 Subject: qca_spi: Improve calculation of RX buffer size There are two points with the calculation of RX buffer size which are not optimal: 1. dev->mtu is a mutual parameter and it's currently initialized with QCAFRM_MAX_MTU. But for RX buffer size calculation we always need the maximum possible MTU. So better use the define directly. 2. This magic number 4 represent the hardware generated frame length which is specific to SPI. We better replace this with the suitable define. There is no functional change. Signed-off-by: Stefan Wahren Reviewed-by: Jacob Keller Signed-off-by: David S. Miller --- drivers/net/ethernet/qualcomm/qca_spi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/qualcomm/qca_spi.c b/drivers/net/ethernet/qualcomm/qca_spi.c index c0f6bd3d331a..b35fabcd488b 100644 --- a/drivers/net/ethernet/qualcomm/qca_spi.c +++ b/drivers/net/ethernet/qualcomm/qca_spi.c @@ -828,8 +828,8 @@ qcaspi_netdev_init(struct net_device *dev) qca->clkspeed = qcaspi_clkspeed; qca->burst_len = qcaspi_burst_len; qca->spi_thread = NULL; - qca->buffer_size = (dev->mtu + VLAN_ETH_HLEN + QCAFRM_HEADER_LEN + - QCAFRM_FOOTER_LEN + 4) * QCASPI_RX_MAX_FRAMES; + qca->buffer_size = (QCAFRM_MAX_MTU + VLAN_ETH_HLEN + QCAFRM_HEADER_LEN + + QCAFRM_FOOTER_LEN + QCASPI_HW_PKT_LEN) * QCASPI_RX_MAX_FRAMES; memset(&qca->stats, 0, sizeof(struct qcaspi_stats)); -- cgit v1.2.3-58-ga151