From 7c927f69c47dec2b3a90373d1c0749a88b8e27e2 Mon Sep 17 00:00:00 2001 Message-Id: <7c927f69c47dec2b3a90373d1c0749a88b8e27e2.1594742966.git.zanussi@kernel.org> In-Reply-To: <832f7d97d6b989a5b4860dd2dbec58ad6ad5ab81.1594742966.git.zanussi@kernel.org> References: <832f7d97d6b989a5b4860dd2dbec58ad6ad5ab81.1594742966.git.zanussi@kernel.org> From: Ingo Molnar Date: Fri, 3 Jul 2009 08:29:57 -0500 Subject: [PATCH 070/329] genirq: Disable irqpoll on -rt Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.132-rt59.tar.xz Creates long latencies for no value Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- kernel/irq/spurious.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c index d867d6ddafdd..cd12ee86c01e 100644 --- a/kernel/irq/spurious.c +++ b/kernel/irq/spurious.c @@ -442,6 +442,10 @@ 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"); @@ -454,6 +458,10 @@ 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"); -- 2.17.1