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Commit c58543c8 authored by David S. Miller's avatar David S. Miller
Browse files

sparc64: Set IRQF_DISABLED on LDC channel IRQs. 



With lots of virtual devices it's easy to generate a lot of
events and chew up the kernel IRQ stack.

Reported-by: default avatarhyl <heyongli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1a78cedb

arch/sparc/kernel/ldc.c

+2 −2
Original line number Diff line number Diff line
@@ -1242,13 +1242,13 @@ int ldc_bind(struct ldc_channel *lp, const char *name) 
	snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name);



	err = request_irq(lp->cfg.rx_irq, ldc_rx,

			  IRQF_SAMPLE_RANDOM | IRQF_SHARED,

			  IRQF_SAMPLE_RANDOM | IRQF_DISABLED | IRQF_SHARED,

			  lp->rx_irq_name, lp);

	if (err)

		return err;



	err = request_irq(lp->cfg.tx_irq, ldc_tx,

			  IRQF_SAMPLE_RANDOM | IRQF_SHARED,

			  IRQF_SAMPLE_RANDOM | IRQF_DISABLED | IRQF_SHARED,

			  lp->tx_irq_name, lp);

	if (err) {

		free_irq(lp->cfg.rx_irq, lp);