linux-kernel - [PATCH 1/3] staging: r8188eu: don't restart "no link" blinking unnecessarily

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Date:   Mon, 22 Aug 2022 22:13:27 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Michael Straube <straube.linux@...il.com>,
        Pavel Skripkin <paskripkin@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Martin Kaiser <martin@...ser.cx>
Subject: [PATCH 1/3] staging: r8188eu: don't restart "no link" blinking unnecessarily

Simplify one of the cases in rtw_led_control. If we're already blinking
because we have no link, we don't have to restart this blinking when the
caller requests it again. We can simply return and keep on blinking.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 drivers/staging/r8188eu/core/rtw_led.c | 37 +++++++++++++-------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_led.c b/drivers/staging/r8188eu/core/rtw_led.c
index d5c6c5e29621..d3299fd1e39d 100644
--- a/drivers/staging/r8188eu/core/rtw_led.c
+++ b/drivers/staging/r8188eu/core/rtw_led.c
@@ -217,26 +217,27 @@ void rtw_led_control(struct adapter *padapter, enum LED_CTL_MODE LedAction)
 	switch (LedAction) {
 	case LED_CTL_START_TO_LINK:
 	case LED_CTL_NO_LINK:
-		if (!pLed->bLedNoLinkBlinkInProgress) {
-			if (pLed->CurrLedState == LED_BLINK_SCAN || IS_LED_WPS_BLINKING(pLed))
-				return;
-			if (pLed->bLedLinkBlinkInProgress) {
-				cancel_delayed_work(&pLed->blink_work);
-				pLed->bLedLinkBlinkInProgress = false;
-			}
-			if (pLed->bLedBlinkInProgress) {
-				cancel_delayed_work(&pLed->blink_work);
-				pLed->bLedBlinkInProgress = false;
-			}
+		if (pLed->bLedNoLinkBlinkInProgress)
+			return;
 
-			pLed->bLedNoLinkBlinkInProgress = true;
-			pLed->CurrLedState = LED_BLINK_SLOWLY;
-			if (pLed->bLedOn)
-				pLed->BlinkingLedState = RTW_LED_OFF;
-			else
-				pLed->BlinkingLedState = RTW_LED_ON;
-			schedule_delayed_work(&pLed->blink_work, LED_BLINK_NO_LINK_INTVL);
+		if (pLed->CurrLedState == LED_BLINK_SCAN || IS_LED_WPS_BLINKING(pLed))
+			return;
+		if (pLed->bLedLinkBlinkInProgress) {
+			cancel_delayed_work(&pLed->blink_work);
+			pLed->bLedLinkBlinkInProgress = false;
 		}
+		if (pLed->bLedBlinkInProgress) {
+			cancel_delayed_work(&pLed->blink_work);
+			pLed->bLedBlinkInProgress = false;
+		}
+
+		pLed->bLedNoLinkBlinkInProgress = true;
+		pLed->CurrLedState = LED_BLINK_SLOWLY;
+		if (pLed->bLedOn)
+			pLed->BlinkingLedState = RTW_LED_OFF;
+		else
+			pLed->BlinkingLedState = RTW_LED_ON;
+		schedule_delayed_work(&pLed->blink_work, LED_BLINK_NO_LINK_INTVL);
 		break;
 	case LED_CTL_LINK:
 		if (!pLed->bLedLinkBlinkInProgress) {
-- 
2.30.2