[PATCH net-next] r8169: remove leftover locks after reverted change

[PATCH net-next] r8169: remove leftover locks after reverted change

[Heiner Kallweit]

After e31a9fedc7d8 ("Revert "r8169: disable ASPM during NAPI poll"")
these locks aren't needed any longer.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/net/ethernet/realtek/r8169_main.c | 29 ++---------------------
 1 file changed, 2 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 4f37d25e0..ce08969f5 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -662,13 +662,9 @@ struct rtl8169_private {
 		struct work_struct work;
 	} wk;
 
-	raw_spinlock_t config25_lock;
 	raw_spinlock_t mac_ocp_lock;
 	struct mutex led_lock;	/* serialize LED ctrl RMW access */
 
-	raw_spinlock_t cfg9346_usage_lock;
-	int cfg9346_usage_count;
-
 	unsigned supports_gmii:1;
 	unsigned aspm_manageable:1;
 	unsigned dash_enabled:1;
@@ -722,22 +718,12 @@ static inline struct device *tp_to_dev(struct rtl8169_private *tp)
 
 static void rtl_lock_config_regs(struct rtl8169_private *tp)
 {
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&tp->cfg9346_usage_lock, flags);
-	if (!--tp->cfg9346_usage_count)
-		RTL_W8(tp, Cfg9346, Cfg9346_Lock);
-	raw_spin_unlock_irqrestore(&tp->cfg9346_usage_lock, flags);
+	RTL_W8(tp, Cfg9346, Cfg9346_Lock);
 }
 
 static void rtl_unlock_config_regs(struct rtl8169_private *tp)
 {
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&tp->cfg9346_usage_lock, flags);
-	if (!tp->cfg9346_usage_count++)
-		RTL_W8(tp, Cfg9346, Cfg9346_Unlock);
-	raw_spin_unlock_irqrestore(&tp->cfg9346_usage_lock, flags);
+	RTL_W8(tp, Cfg9346, Cfg9346_Unlock);
 }
 
 static void rtl_pci_commit(struct rtl8169_private *tp)
@@ -748,24 +734,18 @@ static void rtl_pci_commit(struct rtl8169_private *tp)
 
 static void rtl_mod_config2(struct rtl8169_private *tp, u8 clear, u8 set)
 {
-	unsigned long flags;
 	u8 val;
 
-	raw_spin_lock_irqsave(&tp->config25_lock, flags);
 	val = RTL_R8(tp, Config2);
 	RTL_W8(tp, Config2, (val & ~clear) | set);
-	raw_spin_unlock_irqrestore(&tp->config25_lock, flags);
 }
 
 static void rtl_mod_config5(struct rtl8169_private *tp, u8 clear, u8 set)
 {
-	unsigned long flags;
 	u8 val;
 
-	raw_spin_lock_irqsave(&tp->config25_lock, flags);
 	val = RTL_R8(tp, Config5);
 	RTL_W8(tp, Config5, (val & ~clear) | set);
-	raw_spin_unlock_irqrestore(&tp->config25_lock, flags);
 }
 
 static bool rtl_is_8125(struct rtl8169_private *tp)
@@ -1571,7 +1551,6 @@ static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
 		{ WAKE_MAGIC, Config3, MagicPacket }
 	};
 	unsigned int i, tmp = ARRAY_SIZE(cfg);
-	unsigned long flags;
 	u8 options;
 
 	rtl_unlock_config_regs(tp);
@@ -1590,14 +1569,12 @@ static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
 			r8168_mac_ocp_modify(tp, 0xc0b6, BIT(0), 0);
 	}
 
-	raw_spin_lock_irqsave(&tp->config25_lock, flags);
 	for (i = 0; i < tmp; i++) {
 		options = RTL_R8(tp, cfg[i].reg) & ~cfg[i].mask;
 		if (wolopts & cfg[i].opt)
 			options |= cfg[i].mask;
 		RTL_W8(tp, cfg[i].reg, options);
 	}
-	raw_spin_unlock_irqrestore(&tp->config25_lock, flags);
 
 	switch (tp->mac_version) {
 	case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06:
@@ -5496,8 +5473,6 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	tp->supports_gmii = ent->driver_data == RTL_CFG_NO_GBIT ? 0 : 1;
 	tp->ocp_base = OCP_STD_PHY_BASE;
 
-	raw_spin_lock_init(&tp->cfg9346_usage_lock);
-	raw_spin_lock_init(&tp->config25_lock);
 	raw_spin_lock_init(&tp->mac_ocp_lock);
 	mutex_init(&tp->led_lock);
 
-- 
2.47.0

Re: [PATCH net-next] r8169: remove leftover locks after reverted change

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Mon, 4 Nov 2024 23:16:20 +0100 you wrote:
> After e31a9fedc7d8 ("Revert "r8169: disable ASPM during NAPI poll"")
> these locks aren't needed any longer.
> 
> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
> ---
>  drivers/net/ethernet/realtek/r8169_main.c | 29 ++---------------------
>  1 file changed, 2 insertions(+), 27 deletions(-)

Here is the summary with links:
  - [net-next] r8169: remove leftover locks after reverted change
    https://git.kernel.org/netdev/net-next/c/83cb4b470c66

You are awesome, thank you!
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