[ARM] 5322/1: Fix fastpath issue in mmci.c (9e943021) · Commits · 戴 / test

Fix fastpath issues Since mmci_request() can be called from a non-interrupt context, and does, during kernel init, causing a host of debug messages during boot if you enable spinlock debugging, we need to use the spinlock calls that save IRQ flags and restore them. Signed-off-by:

Linus Walleij <triad@df.lth.se> Signed-off-by:

Russell King <rmk+kernel@arm.linux.org.uk>

drivers/mmc/host/mmci.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -391,6 +391,7 @@ static irqreturn_t mmci_irq(int irq, void *dev_id)
		static void mmci_request(struct mmc_host mmc, struct mmc_request mrq)
		{
		struct mmci_host *host = mmc_priv(mmc);
		unsigned long flags;

		WARN_ON(host->mrq != NULL);

		@@ -402,7 +403,7 @@ static void mmci_request(struct mmc_host mmc, struct mmc_request mrq)
		return;
		}

		spin_lock_irq(&host->lock);
		spin_lock_irqsave(&host->lock, flags);

		host->mrq = mrq;

		@@ -411,7 +412,7 @@ static void mmci_request(struct mmc_host mmc, struct mmc_request mrq)

		mmci_start_command(host, mrq->cmd, 0);

		spin_unlock_irq(&host->lock);
		spin_unlock_irqrestore(&host->lock, flags);
		}

		static void mmci_set_ios(struct mmc_host mmc, struct mmc_ios ios)

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