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authorIngo Molnar <mingo@elte.hu>2009-07-03 13:29:57 (GMT)
committerScott Wood <scottwood@freescale.com>2014-04-10 00:18:54 (GMT)
commitd7fb8670b999a78682ba6c7074889203e0e8247d (patch)
tree843c0c7b25933582fa799dfbb5d974073cf07c73 /kernel/irq
parentd56461fc6865f3d9a51dca4721f0ef032c8cf569 (diff)
downloadlinux-fsl-qoriq-d7fb8670b999a78682ba6c7074889203e0e8247d.tar.xz
genirq: disable irqpoll on -rt
Creates long latencies for no value Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq')
-rw-r--r--kernel/irq/spurious.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 7b5f012..e5a309a 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -340,6 +340,10 @@ MODULE_PARM_DESC(noirqdebug, "Disable irq lockup detection when true");
static int __init irqfixup_setup(char *str)
{
+#ifdef CONFIG_PREEMPT_RT_BASE
+ pr_warn("irqfixup boot option not supported w/ CONFIG_PREEMPT_RT_BASE\n");
+ return 1;
+#endif
irqfixup = 1;
printk(KERN_WARNING "Misrouted IRQ fixup support enabled.\n");
printk(KERN_WARNING "This may impact system performance.\n");
@@ -352,6 +356,10 @@ module_param(irqfixup, int, 0644);
static int __init irqpoll_setup(char *str)
{
+#ifdef CONFIG_PREEMPT_RT_BASE
+ pr_warn("irqpoll boot option not supported w/ CONFIG_PREEMPT_RT_BASE\n");
+ return 1;
+#endif
irqfixup = 2;
printk(KERN_WARNING "Misrouted IRQ fixup and polling support "
"enabled\n");