[PATCH net-next v3 07/12] net: stmmac: Remove some unnecessary void pointers

Andrew Halaney
2023-03-31T21:48:55Z

There's a few spots in the hardware interface where a void pointer is
used, but what's passed in and later cast out is always the same type.

Just use the proper type directly.

Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
---

Changes since v2:
* New patch. In later patches refactoring hwif.h I touched these in
their first form (which was later dropped) and changed this as
part of that. But I thought the change was still good overall,
so I left this improvement in the series.

.../net/ethernet/stmicro/stmmac/chain_mode.c | 10 +++----
.../ethernet/stmicro/stmmac/dwmac100_dma.c | 4 +--
.../ethernet/stmicro/stmmac/dwmac4_descs.c | 8 ++---
.../ethernet/stmicro/stmmac/dwxgmac2_descs.c | 6 ++--
.../net/ethernet/stmicro/stmmac/enh_desc.c | 11 +++----
drivers/net/ethernet/stmicro/stmmac/hwif.h | 30 ++++++++++++-------
.../net/ethernet/stmicro/stmmac/norm_desc.c | 8 ++---
.../net/ethernet/stmicro/stmmac/ring_mode.c | 10 +++----
8 files changed, 47 insertions(+), 40 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/chain_mode.c b/drivers/net/ethernet/stmicro/stmmac/chain_mode.c
index 2e8744ac6b91..fb55efd52240 100644
--- a/drivers/net/ethernet/stmicro/stmmac/chain_mode.c
+++ b/drivers/net/ethernet/stmicro/stmmac/chain_mode.c
@@ -14,9 +14,9 @@

#include "stmmac.h"

-static int jumbo_frm(void *p, struct sk_buff *skb, int csum)
+static int jumbo_frm(struct stmmac_tx_queue *tx_q, struct sk_buff *skb,
+ int csum)
{
- struct stmmac_tx_queue *tx_q = (struct stmmac_tx_queue *)p;
unsigned int nopaged_len = skb_headlen(skb);
struct stmmac_priv *priv = tx_q->priv_data;
unsigned int entry = tx_q->cur_tx;
@@ -125,9 +125,8 @@ static void init_dma_chain(void *des, dma_addr_t phy_addr,
}
}

-static void refill_desc3(void *priv_ptr, struct dma_desc *p)
+static void refill_desc3(struct stmmac_rx_queue *rx_q, struct dma_desc *p)
{
- struct stmmac_rx_queue *rx_q = (struct stmmac_rx_queue *)priv_ptr;
struct stmmac_priv *priv = rx_q->priv_data;

if (priv->hwts_rx_en && !priv->extend_desc)
@@ -141,9 +140,8 @@ static void refill_desc3(void *priv_ptr, struct dma_desc *p)
sizeof(struct dma_desc)));
}

-static void clean_desc3(void *priv_ptr, struct dma_desc *p)
+static void clean_desc3(struct stmmac_tx_queue *tx_q, struct dma_desc *p)
{
- struct stmmac_tx_queue *tx_q = (struct stmmac_tx_queue *)priv_ptr;
struct stmmac_priv *priv = tx_q->priv_data;
unsigned int entry = tx_q->dirty_tx;

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
index 8f0d9bc7cab5..f6abc7bfd29d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
@@ -80,10 +80,10 @@ static void dwmac100_dump_dma_regs(void __iomem *ioaddr, u32 *reg_space)
}

/* DMA controller has two counters to track the number of the missed frames. */
-static void dwmac100_dma_diagnostic_fr(void *data, struct stmmac_extra_stats *x,
+static void dwmac100_dma_diagnostic_fr(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
void __iomem *ioaddr)
{
- struct net_device_stats *stats = (struct net_device_stats *)data;
u32 csr8 = readl(ioaddr + DMA_MISSED_FRAME_CTR);

if (unlikely(csr8)) {
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
index 8cc80b1db4cb..6a011d8633e8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
@@ -13,11 +13,11 @@
#include "dwmac4.h"
#include "dwmac4_descs.h"

-static int dwmac4_wrback_get_tx_status(void *data, struct stmmac_extra_stats *x,
+static int dwmac4_wrback_get_tx_status(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
struct dma_desc *p,
void __iomem *ioaddr)
{
- struct net_device_stats *stats = (struct net_device_stats *)data;
unsigned int tdes3;
int ret = tx_done;

@@ -73,10 +73,10 @@ static int dwmac4_wrback_get_tx_status(void *data, struct stmmac_extra_stats *x,
return ret;
}

-static int dwmac4_wrback_get_rx_status(void *data, struct stmmac_extra_stats *x,
+static int dwmac4_wrback_get_rx_status(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
struct dma_desc *p)
{
- struct net_device_stats *stats = (struct net_device_stats *)data;
unsigned int rdes1 = le32_to_cpu(p->des1);
unsigned int rdes2 = le32_to_cpu(p->des2);
unsigned int rdes3 = le32_to_cpu(p->des3);
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
index b1f0c3984a09..13c347ee8be9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
@@ -8,7 +8,8 @@
#include "common.h"
#include "dwxgmac2.h"

-static int dwxgmac2_get_tx_status(void *data, struct stmmac_extra_stats *x,
+static int dwxgmac2_get_tx_status(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
struct dma_desc *p, void __iomem *ioaddr)
{
unsigned int tdes3 = le32_to_cpu(p->des3);
@@ -22,7 +23,8 @@ static int dwxgmac2_get_tx_status(void *data, struct stmmac_extra_stats *x,
return ret;
}

-static int dwxgmac2_get_rx_status(void *data, struct stmmac_extra_stats *x,
+static int dwxgmac2_get_rx_status(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
struct dma_desc *p)
{
unsigned int rdes3 = le32_to_cpu(p->des3);
diff --git a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
index 1bcbbd724fb5..a91d8f13a931 100644
--- a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
@@ -12,10 +12,10 @@
#include "common.h"
#include "descs_com.h"

-static int enh_desc_get_tx_status(void *data, struct stmmac_extra_stats *x,
+static int enh_desc_get_tx_status(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
struct dma_desc *p, void __iomem *ioaddr)
{
- struct net_device_stats *stats = (struct net_device_stats *)data;
unsigned int tdes0 = le32_to_cpu(p->des0);
int ret = tx_done;

@@ -117,7 +117,8 @@ static int enh_desc_coe_rdes0(int ipc_err, int type, int payload_err)
return ret;
}

-static void enh_desc_get_ext_status(void *data, struct stmmac_extra_stats *x,
+static void enh_desc_get_ext_status(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
struct dma_extended_desc *p)
{
unsigned int rdes0 = le32_to_cpu(p->basic.des0);
@@ -181,10 +182,10 @@ static void enh_desc_get_ext_status(void *data, struct stmmac_extra_stats *x,
}
}

-static int enh_desc_get_rx_status(void *data, struct stmmac_extra_stats *x,
+static int enh_desc_get_rx_status(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
struct dma_desc *p)
{
- struct net_device_stats *stats = (struct net_device_stats *)data;
unsigned int rdes0 = le32_to_cpu(p->des0);
int ret = good_frame;

diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index 16a7421715cb..4572d9a059b5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -56,8 +56,9 @@ struct stmmac_desc_ops {
/* Last tx segment reports the transmit status */
int (*get_tx_ls)(struct dma_desc *p);
/* Return the transmit status looking at the TDES1 */
- int (*tx_status)(void *data, struct stmmac_extra_stats *x,
- struct dma_desc *p, void __iomem *ioaddr);
+ int (*tx_status)(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
+ struct dma_desc *p, void __iomem *ioaddr);
/* Get the buffer size from the descriptor */
int (*get_tx_len)(struct dma_desc *p);
/* Handle extra events on specific interrupts hw dependent */
@@ -65,10 +66,12 @@ struct stmmac_desc_ops {
/* Get the receive frame size */
int (*get_rx_frame_len)(struct dma_desc *p, int rx_coe_type);
/* Return the reception status looking at the RDES1 */
- int (*rx_status)(void *data, struct stmmac_extra_stats *x,
- struct dma_desc *p);
- void (*rx_extended_status)(void *data, struct stmmac_extra_stats *x,
- struct dma_extended_desc *p);
+ int (*rx_status)(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
+ struct dma_desc *p);
+ void (*rx_extended_status)(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
+ struct dma_extended_desc *p);
/* Set tx timestamp enable bit */
void (*enable_tx_timestamp) (struct dma_desc *p);
/* get tx timestamp status */
@@ -185,8 +188,9 @@ struct stmmac_dma_ops {
void (*dma_tx_mode)(void __iomem *ioaddr, int mode, u32 channel,
int fifosz, u8 qmode);
/* To track extra statistic (if supported) */
- void (*dma_diagnostic_fr) (void *data, struct stmmac_extra_stats *x,
- void __iomem *ioaddr);
+ void (*dma_diagnostic_fr)(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
+ void __iomem *ioaddr);
void (*enable_dma_transmission) (void __iomem *ioaddr);
void (*enable_dma_irq)(void __iomem *ioaddr, u32 chan,
bool rx, bool tx);
@@ -535,16 +539,20 @@ struct stmmac_hwtimestamp {
#define stmmac_timestamp_interrupt(__priv, __args...) \
stmmac_do_void_callback(__priv, ptp, timestamp_interrupt, __args)

+struct stmmac_tx_queue;
+struct stmmac_rx_queue;
+
/* Helpers to manage the descriptors for chain and ring modes */
struct stmmac_mode_ops {
void (*init) (void *des, dma_addr_t phy_addr, unsigned int size,
unsigned int extend_desc);
unsigned int (*is_jumbo_frm) (int len, int ehn_desc);
- int (*jumbo_frm)(void *priv, struct sk_buff *skb, int csum);
+ int (*jumbo_frm)(struct stmmac_tx_queue *tx_q, struct sk_buff *skb,
+ int csum);
int (*set_16kib_bfsize)(int mtu);
void (*init_desc3)(struct dma_desc *p);
- void (*refill_desc3) (void *priv, struct dma_desc *p);
- void (*clean_desc3) (void *priv, struct dma_desc *p);
+ void (*refill_desc3)(struct stmmac_rx_queue *rx_q, struct dma_desc *p);
+ void (*clean_desc3)(struct stmmac_tx_queue *tx_q, struct dma_desc *p);
};

#define stmmac_mode_init(__priv, __args...) \
diff --git a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c
index e3da4da242ee..350e6670a576 100644
--- a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c
@@ -12,10 +12,10 @@
#include "common.h"
#include "descs_com.h"

-static int ndesc_get_tx_status(void *data, struct stmmac_extra_stats *x,
+static int ndesc_get_tx_status(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
struct dma_desc *p, void __iomem *ioaddr)
{
- struct net_device_stats *stats = (struct net_device_stats *)data;
unsigned int tdes0 = le32_to_cpu(p->des0);
unsigned int tdes1 = le32_to_cpu(p->des1);
int ret = tx_done;
@@ -70,12 +70,12 @@ static int ndesc_get_tx_len(struct dma_desc *p)
* and, if required, updates the multicast statistics.
* In case of success, it returns good_frame because the GMAC device
* is supposed to be able to compute the csum in HW. */
-static int ndesc_get_rx_status(void *data, struct stmmac_extra_stats *x,
+static int ndesc_get_rx_status(struct net_device_stats *stats,
+ struct stmmac_extra_stats *x,
struct dma_desc *p)
{
int ret = good_frame;
unsigned int rdes0 = le32_to_cpu(p->des0);
- struct net_device_stats *stats = (struct net_device_stats *)data;

if (unlikely(rdes0 & RDES0_OWN))
return dma_own;
diff --git a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
index 2b5b17d8b8a0..d218412ca832 100644
--- a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
+++ b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
@@ -14,9 +14,9 @@

#include "stmmac.h"

-static int jumbo_frm(void *p, struct sk_buff *skb, int csum)
+static int jumbo_frm(struct stmmac_tx_queue *tx_q, struct sk_buff *skb,
+ int csum)
{
- struct stmmac_tx_queue *tx_q = (struct stmmac_tx_queue *)p;
unsigned int nopaged_len = skb_headlen(skb);
struct stmmac_priv *priv = tx_q->priv_data;
unsigned int entry = tx_q->cur_tx;
@@ -101,9 +101,8 @@ static unsigned int is_jumbo_frm(int len, int enh_desc)
return ret;
}

-static void refill_desc3(void *priv_ptr, struct dma_desc *p)
+static void refill_desc3(struct stmmac_rx_queue *rx_q, struct dma_desc *p)
{
- struct stmmac_rx_queue *rx_q = priv_ptr;
struct stmmac_priv *priv = rx_q->priv_data;

/* Fill DES3 in case of RING mode */
@@ -117,9 +116,8 @@ static void init_desc3(struct dma_desc *p)
p->des3 = cpu_to_le32(le32_to_cpu(p->des2) + BUF_SIZE_8KiB);
}

-static void clean_desc3(void *priv_ptr, struct dma_desc *p)
+static void clean_desc3(struct stmmac_tx_queue *tx_q, struct dma_desc *p)
{
- struct stmmac_tx_queue *tx_q = (struct stmmac_tx_queue *)priv_ptr;
struct stmmac_priv *priv = tx_q->priv_data;
unsigned int entry = tx_q->dirty_tx;

--
2.39.2