From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Chen-Yu Tsai <wens@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>, Frank Li <Frank.Li@nxp.com>,
imx@lists.linux.dev, Jakub Kicinski <kuba@kernel.org>,
Jan Petrous <jan.petrous@oss.nxp.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org,
linux-mediatek@lists.infradead.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org,
Maxime Chevallier <maxime.chevallier@bootlin.com>,
Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>,
netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
s32@nxp.com, Samuel Holland <samuel@sholland.org>,
Sascha Hauer <s.hauer@pengutronix.de>, Yao Zi <me@ziyao.cc>
Subject: [PATCH net-next 5/7] net: stmmac: use u8 for host_dma_width and similar struct members
Date: Sat, 07 Mar 2026 11:03:00 +0000 [thread overview]
Message-ID: <E1vypQy-0000000CSwP-28Y9@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <aawFuXTVAgVOrw4k@shell.armlinux.org.uk>
We aren't going to see >= 256-bit address busses soon, so reduce
host_dma_width and associated other struct members that initialise
this from u8 to u32.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c | 2 +-
drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 6 +++---
drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 2 +-
include/linux/stmmac.h | 2 +-
4 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index 9f5a15b81f8a..9d1bd72ffb73 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
@@ -42,8 +42,8 @@
struct imx_priv_data;
struct imx_dwmac_ops {
- u32 addr_width;
u32 flags;
+ u8 addr_width;
bool mac_rgmii_txclk_auto_adj;
int (*fix_soc_reset)(struct stmmac_priv *priv);
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
index a139db6a8cbb..30ae0dba7fff 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
@@ -93,9 +93,9 @@ struct mediatek_dwmac_variant {
const char * const *clk_list;
int num_clks;
- u32 dma_bit_mask;
u32 rx_delay_max;
u32 tx_delay_max;
+ u8 dma_bit_mask;
};
/* list of clocks required for mac */
@@ -268,9 +268,9 @@ static const struct mediatek_dwmac_variant mt2712_gmac_variant = {
.dwmac_set_delay = mt2712_set_delay,
.clk_list = mt2712_dwmac_clk_l,
.num_clks = ARRAY_SIZE(mt2712_dwmac_clk_l),
- .dma_bit_mask = 33,
.rx_delay_max = 17600,
.tx_delay_max = 17600,
+ .dma_bit_mask = 33,
};
static int mt8195_set_interface(struct mediatek_dwmac_plat_data *plat,
@@ -418,9 +418,9 @@ static const struct mediatek_dwmac_variant mt8195_gmac_variant = {
.dwmac_set_delay = mt8195_set_delay,
.clk_list = mt8195_dwmac_clk_l,
.num_clks = ARRAY_SIZE(mt8195_dwmac_clk_l),
- .dma_bit_mask = 35,
.rx_delay_max = 9280,
.tx_delay_max = 9280,
+ .dma_bit_mask = 35,
};
static int mediatek_dwmac_config_dt(struct mediatek_dwmac_plat_data *plat)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index 388e9fdeb86c..3ccf20fdf52a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -91,8 +91,8 @@ struct ethqos_emac_driver_data {
unsigned int num_rgmii_por;
bool rgmii_config_loopback_en;
bool has_emac_ge_3;
+ u8 dma_addr_width;
const char *link_clk_name;
- u32 dma_addr_width;
struct dwmac4_addrs dwmac4_addrs;
bool needs_sgmii_loopback;
};
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 03fd85060a73..11886189bf51 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -243,7 +243,7 @@ struct plat_stmmacenet_data {
int unicast_filter_entries;
int tx_fifo_size;
int rx_fifo_size;
- u32 host_dma_width;
+ u8 host_dma_width;
u8 rx_queues_to_use;
u8 tx_queues_to_use;
u8 rx_sched_algorithm;
--
2.47.3
next prev parent reply other threads:[~2026-03-07 11:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-07 11:02 [PATCH net-next 0/7] net: stmmac: start to shrink memory usage Russell King (Oracle)
2026-03-07 11:02 ` [PATCH net-next 1/7] net: stmmac: provide plat_dat->dma_cfg in stmmac_plat_dat_alloc() Russell King (Oracle)
2026-03-07 11:02 ` [PATCH net-next 2/7] net: stmmac: convert plat_stmmacenet_data booleans to type bool Russell King (Oracle)
2026-03-07 11:02 ` [PATCH net-next 3/7] net: stmmac: reorder structs to reduce memory consumption Russell King (Oracle)
2026-03-07 11:02 ` [PATCH net-next 4/7] net: stmmac: use u8 for ?x_queues_to_use and number_?x_queues Russell King (Oracle)
2026-03-07 11:03 ` Russell King (Oracle) [this message]
2026-03-07 11:03 ` [PATCH net-next 6/7] net: stmmac: add documentation for stmmac_dma_cfg members Russell King (Oracle)
2026-03-07 11:03 ` [PATCH net-next 7/7] net: stmmac: add documentation for clocks Russell King (Oracle)
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