[PATCH] irqchip/gic: Use smp_wmb() instead of dmb(ishst)

[Samuel Holland]

This is equivalent on ARM, but also works on other architectures.

Signed-off-by: Samuel Holland <samuel.holland at sifive.com>
---

 drivers/irqchip/irq-gic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 98aa383e39db..dc2e4018a40c 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -839,7 +839,7 @@ static void gic_ipi_send_mask(struct irq_data *d, const struct cpumask *mask)
 	 * Ensure that stores to Normal memory are visible to the
 	 * other CPUs before they observe us issuing the IPI.
 	 */
-	dmb(ishst);
+	smp_wmb();
 
 	/* this always happens on GIC0 */
 	writel_relaxed(map << 16 | d->hwirq, gic_data_dist_base(&gic_data[0]) + GIC_DIST_SOFTINT);
-- 
2.44.1