diff mbox series

[net-next,v4,07/18] net: stmmac: clean up stmmac_disable_eee_mode()

Message ID E1tVZDw-0002KL-Gg@rmk-PC.armlinux.org.uk (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series net: stmmac: clean up and fix EEE implementation | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches
netdev/tree_selection success Clearly marked for 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: 1 this patch: 1
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/build_clang success Errors and warnings before: 2 this patch: 2
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: 1 this patch: 1
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 28 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 38 this patch: 38
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2025-01-09--15-00 (tests: 882)

Commit Message

Russell King (Oracle) Jan. 8, 2025, 4:48 p.m. UTC
stmmac_disable_eee_mode() is now only called from stmmac_xmit() when
both priv->tx_path_in_lpi_mode and priv->eee_sw_timer_en are true.
Therefore:

	if (!priv->eee_sw_timer_en)

in stmmac_disable_eee_mode() will never be true, so this is dead code.
Remove it, and rename the function to indicate that it now only deals
with software based EEE mode.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

Comments

Russell King (Oracle) Jan. 8, 2025, 8:25 p.m. UTC | #1
On Wed, Jan 08, 2025 at 04:48:04PM +0000, Russell King (Oracle) wrote:
> stmmac_disable_eee_mode() is now only called from stmmac_xmit() when
> both priv->tx_path_in_lpi_mode and priv->eee_sw_timer_en are true.
> Therefore:
> 
> 	if (!priv->eee_sw_timer_en)
> 
> in stmmac_disable_eee_mode() will never be true, so this is dead code.
> Remove it, and rename the function to indicate that it now only deals
> with software based EEE mode.
> 
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Tested-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
> ---
>  drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> index de06aa1ff3f6..9a043d19ebac 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
> @@ -427,18 +427,13 @@ static int stmmac_enable_eee_mode(struct stmmac_priv *priv)
>  }
>  
>  /**
> - * stmmac_disable_eee_mode - disable and exit from LPI mode
> + * stmmac_disable_sw_eee_mode - disable and exit from LPI mode
>   * @priv: driver private structure
>   * Description: this function is to exit and disable EEE in case of
>   * LPI state is true. This is called by the xmit.
>   */
> -static void stmmac_disable_eee_mode(struct stmmac_priv *priv)
> +static void stmmac_disable_sw_eee_mode(struct stmmac_priv *priv)

Looking at this again, I'm still not happy with the function name, but
not enough to send another version. I'll change it to
stmmac_stop_sw_lpi() in the next batch of stmmac EEE cleanups (there
is more to come!)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index de06aa1ff3f6..9a043d19ebac 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -427,18 +427,13 @@  static int stmmac_enable_eee_mode(struct stmmac_priv *priv)
 }
 
 /**
- * stmmac_disable_eee_mode - disable and exit from LPI mode
+ * stmmac_disable_sw_eee_mode - disable and exit from LPI mode
  * @priv: driver private structure
  * Description: this function is to exit and disable EEE in case of
  * LPI state is true. This is called by the xmit.
  */
-static void stmmac_disable_eee_mode(struct stmmac_priv *priv)
+static void stmmac_disable_sw_eee_mode(struct stmmac_priv *priv)
 {
-	if (!priv->eee_sw_timer_en) {
-		stmmac_lpi_entry_timer_config(priv, 0);
-		return;
-	}
-
 	stmmac_reset_eee_mode(priv, priv->hw);
 	del_timer_sync(&priv->eee_ctrl_timer);
 	priv->tx_path_in_lpi_mode = false;
@@ -4495,7 +4490,7 @@  static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 	first_tx = tx_q->cur_tx;
 
 	if (priv->tx_path_in_lpi_mode && priv->eee_sw_timer_en)
-		stmmac_disable_eee_mode(priv);
+		stmmac_disable_sw_eee_mode(priv);
 
 	/* Manage oversized TCP frames for GMAC4 device */
 	if (skb_is_gso(skb) && priv->tso) {