linux-kernel - [PATCH V2 1/5] mmc: mmci: cleanup mmci_cmd

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Date:   Fri, 26 Apr 2019 09:46:34 +0200
From:   Ludovic Barre <ludovic.Barre@...com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     <srinivas.kandagatla@...aro.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-mmc@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        Ludovic Barre <ludovic.barre@...com>
Subject: [PATCH V2 1/5] mmc: mmci: cleanup mmci_cmd_irq for busy detect feature

From: Ludovic Barre <ludovic.barre@...com>

This patch cleans mmci_cmd_irq function for busy detect feature.

Signed-off-by: Ludovic Barre <ludovic.barre@...com>
---
 drivers/mmc/host/mmci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 9e9596a..049f8e3 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1205,12 +1205,13 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd,
 	     unsigned int status)
 {
 	void __iomem *base = host->base;
-	bool sbc;
+	bool sbc, busy_resp;
 
 	if (!cmd)
 		return;
 
 	sbc = (cmd == host->mrq->sbc);
+	busy_resp = !!(cmd->flags & MMC_RSP_BUSY);
 
 	/*
 	 * We need to be one of these interrupts to be considered worth
@@ -1224,8 +1225,7 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd,
 	/*
 	 * ST Micro variant: handle busy detection.
 	 */
-	if (host->variant->busy_detect) {
-		bool busy_resp = !!(cmd->flags & MMC_RSP_BUSY);
+	if (busy_resp && host->variant->busy_detect) {
 
 		/* We are busy with a command, return */
 		if (host->busy_status &&
@@ -1238,7 +1238,7 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd,
 		 * that the special busy status bit is still set before
 		 * proceeding.
 		 */
-		if (!host->busy_status && busy_resp &&
+		if (!host->busy_status &&
 		    !(status & (MCI_CMDCRCFAIL|MCI_CMDTIMEOUT)) &&
 		    (readl(base + MMCISTATUS) & host->variant->busy_detect_flag)) {
 
-- 
2.7.4