mmc: sdhci: Drop redundant check in sdhci_ack_sdio_irq()

The sdhci_ack_sdio_irq() is called only when SDIO IRQs are enabled.
Therefore, let's drop the redundant check of the internal
SDHCI_SDIO_IRQ_ENABLED flag and just re-enable the IRQs immediately.
Reviewed-by: NMatthias Kaehlcke <mka@chromium.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci.c

@@ -2163,8 +2163,7 @@ static void sdhci_ack_sdio_irq(struct mmc_host *mmc)
 	unsigned long flags;
 
 	spin_lock_irqsave(&host->lock, flags);
-	if (host->flags & SDHCI_SDIO_IRQ_ENABLED)
-		sdhci_enable_sdio_irq_nolock(host, true);
+	sdhci_enable_sdio_irq_nolock(host, true);
 	spin_unlock_irqrestore(&host->lock, flags);
 }