summaryrefslogtreecommitdiffstats
path: root/debian/patches-rt/0285-genirq-Disable-irqpoll-on-rt.patch
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--debian/patches-rt/0285-genirq-Disable-irqpoll-on-rt.patch43
1 files changed, 43 insertions, 0 deletions
diff --git a/debian/patches-rt/0285-genirq-Disable-irqpoll-on-rt.patch b/debian/patches-rt/0285-genirq-Disable-irqpoll-on-rt.patch
new file mode 100644
index 000000000..8033dbbab
--- /dev/null
+++ b/debian/patches-rt/0285-genirq-Disable-irqpoll-on-rt.patch
@@ -0,0 +1,43 @@
+From 4795907a92ad1bf9383b0c748facb436cac71e36 Mon Sep 17 00:00:00 2001
+From: Ingo Molnar <mingo@elte.hu>
+Date: Fri, 3 Jul 2009 08:29:57 -0500
+Subject: [PATCH 285/323] genirq: Disable irqpoll on -rt
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.10/older/patches-5.10.204-rt100.tar.xz
+
+Creates long latencies for no value
+
+Signed-off-by: Ingo Molnar <mingo@elte.hu>
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+---
+ kernel/irq/spurious.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
+index f865e5f4d382..dc7311dd74b1 100644
+--- a/kernel/irq/spurious.c
++++ b/kernel/irq/spurious.c
+@@ -443,6 +443,10 @@ MODULE_PARM_DESC(noirqdebug, "Disable irq lockup detection when true");
+
+ static int __init irqfixup_setup(char *str)
+ {
++#ifdef CONFIG_PREEMPT_RT
++ pr_warn("irqfixup boot option not supported w/ CONFIG_PREEMPT_RT\n");
++ return 1;
++#endif
+ irqfixup = 1;
+ printk(KERN_WARNING "Misrouted IRQ fixup support enabled.\n");
+ printk(KERN_WARNING "This may impact system performance.\n");
+@@ -455,6 +459,10 @@ module_param(irqfixup, int, 0644);
+
+ static int __init irqpoll_setup(char *str)
+ {
++#ifdef CONFIG_PREEMPT_RT
++ pr_warn("irqpoll boot option not supported w/ CONFIG_PREEMPT_RT\n");
++ return 1;
++#endif
+ irqfixup = 2;
+ printk(KERN_WARNING "Misrouted IRQ fixup and polling support "
+ "enabled\n");
+--
+2.43.0
+