diff mbox series

[v2] net: stmmac: move the lock to struct plat_stmmacenet_data

Message ID 20240508041557.2394088-1-xiaolei.wang@windriver.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series [v2] net: stmmac: move the lock to struct plat_stmmacenet_data | expand

Checks

Context Check Description
netdev/series_format warning Single patches do not need cover letters; Target tree name not specified in the subject
netdev/tree_selection success Guessed tree name to be net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 937 this patch: 937
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 13 of 13 maintainers
netdev/build_clang success Errors and warnings before: 937 this patch: 937
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 949 this patch: 949
netdev/checkpatch warning CHECK: struct mutex definition without comment
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 19 this patch: 19
netdev/source_inline success Was 0 now: 0

Commit Message

Xiaolei Wang May 8, 2024, 4:15 a.m. UTC 
Reinitialize the whole est structure would also reset the mutex lock
which is embedded in the est structure, and then trigger the following
warning. To address this, move the lock to struct plat_stmmacenet_data.
We also need to require the mutex lock when doing this initialization.

Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
---
v1 -> v2
 - move the lock to struct plat_stmmacenet_data

 drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c |  8 ++++----
 drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c  | 16 ++++++++--------
 include/linux/stmmac.h                           |  2 +-
 3 files changed, 13 insertions(+), 13 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
index e04830a3a1fb..82b7577fea9e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
@@ -70,11 +70,11 @@  static int stmmac_adjust_time(struct ptp_clock_info *ptp, s64 delta)
 	/* If EST is enabled, disabled it before adjust ptp time. */
 	if (priv->plat->est && priv->plat->est->enable) {
 		est_rst = true;
-		mutex_lock(&priv->plat->est->lock);
+		mutex_lock(&priv->plat->lock);
 		priv->plat->est->enable = false;
 		stmmac_est_configure(priv, priv, priv->plat->est,
 				     priv->plat->clk_ptp_rate);
-		mutex_unlock(&priv->plat->est->lock);
+		mutex_unlock(&priv->plat->lock);
 	}
 
 	write_lock_irqsave(&priv->ptp_lock, flags);
@@ -87,7 +87,7 @@  static int stmmac_adjust_time(struct ptp_clock_info *ptp, s64 delta)
 		ktime_t current_time_ns, basetime;
 		u64 cycle_time;
 
-		mutex_lock(&priv->plat->est->lock);
+		mutex_lock(&priv->plat->lock);
 		priv->ptp_clock_ops.gettime64(&priv->ptp_clock_ops, &current_time);
 		current_time_ns = timespec64_to_ktime(current_time);
 		time.tv_nsec = priv->plat->est->btr_reserve[0];
@@ -104,7 +104,7 @@  static int stmmac_adjust_time(struct ptp_clock_info *ptp, s64 delta)
 		priv->plat->est->enable = true;
 		ret = stmmac_est_configure(priv, priv, priv->plat->est,
 					   priv->plat->clk_ptp_rate);
-		mutex_unlock(&priv->plat->est->lock);
+		mutex_unlock(&priv->plat->lock);
 		if (ret)
 			netdev_err(priv->dev, "failed to configure EST\n");
 	}
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index cce00719937d..f1e4d755a484 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -1004,17 +1004,17 @@  static int tc_taprio_configure(struct stmmac_priv *priv,
 		if (!plat->est)
 			return -ENOMEM;
 
-		mutex_init(&priv->plat->est->lock);
+		mutex_init(&priv->plat->lock);
 	} else {
 		memset(plat->est, 0, sizeof(*plat->est));
 	}
 
 	size = qopt->num_entries;
 
-	mutex_lock(&priv->plat->est->lock);
+	mutex_lock(&priv->plat->lock);
 	priv->plat->est->gcl_size = size;
 	priv->plat->est->enable = qopt->cmd == TAPRIO_CMD_REPLACE;
-	mutex_unlock(&priv->plat->est->lock);
+	mutex_unlock(&priv->plat->lock);
 
 	for (i = 0; i < size; i++) {
 		s64 delta_ns = qopt->entries[i].interval;
@@ -1045,7 +1045,7 @@  static int tc_taprio_configure(struct stmmac_priv *priv,
 		priv->plat->est->gcl[i] = delta_ns | (gates << wid);
 	}
 
-	mutex_lock(&priv->plat->est->lock);
+	mutex_lock(&priv->plat->lock);
 	/* Adjust for real system time */
 	priv->ptp_clock_ops.gettime64(&priv->ptp_clock_ops, &current_time);
 	current_time_ns = timespec64_to_ktime(current_time);
@@ -1068,7 +1068,7 @@  static int tc_taprio_configure(struct stmmac_priv *priv,
 	tc_taprio_map_maxsdu_txq(priv, qopt);
 
 	if (fpe && !priv->dma_cap.fpesel) {
-		mutex_unlock(&priv->plat->est->lock);
+		mutex_unlock(&priv->plat->lock);
 		return -EOPNOTSUPP;
 	}
 
@@ -1079,7 +1079,7 @@  static int tc_taprio_configure(struct stmmac_priv *priv,
 
 	ret = stmmac_est_configure(priv, priv, priv->plat->est,
 				   priv->plat->clk_ptp_rate);
-	mutex_unlock(&priv->plat->est->lock);
+	mutex_unlock(&priv->plat->lock);
 	if (ret) {
 		netdev_err(priv->dev, "failed to configure EST\n");
 		goto disable;
@@ -1096,7 +1096,7 @@  static int tc_taprio_configure(struct stmmac_priv *priv,
 
 disable:
 	if (priv->plat->est) {
-		mutex_lock(&priv->plat->est->lock);
+		mutex_lock(&priv->plat->lock);
 		priv->plat->est->enable = false;
 		stmmac_est_configure(priv, priv, priv->plat->est,
 				     priv->plat->clk_ptp_rate);
@@ -1105,7 +1105,7 @@  static int tc_taprio_configure(struct stmmac_priv *priv,
 			priv->xstats.max_sdu_txq_drop[i] = 0;
 			priv->xstats.mtl_est_txq_hlbf[i] = 0;
 		}
-		mutex_unlock(&priv->plat->est->lock);
+		mutex_unlock(&priv->plat->lock);
 	}
 
 	priv->plat->fpe_cfg->enable = false;
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index dfa1828cd756..316ff7eb8b33 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -117,7 +117,6 @@  struct stmmac_axi {
 
 #define EST_GCL		1024
 struct stmmac_est {
-	struct mutex lock;
 	int enable;
 	u32 btr_reserve[2];
 	u32 btr_offset[2];
@@ -246,6 +245,7 @@  struct plat_stmmacenet_data {
 	struct fwnode_handle *port_node;
 	struct device_node *mdio_node;
 	struct stmmac_dma_cfg *dma_cfg;
+	struct mutex lock;
 	struct stmmac_est *est;
 	struct stmmac_fpe_cfg *fpe_cfg;
 	struct stmmac_safety_feature_cfg *safety_feat_cfg;