[RFC PATCH 4/4] powerpc 2.6.16-rt29: to fix network driver (workaround)
From: Tsutomu OWA <hidden>
Date: 2006-08-11 02:04:57
Also in:
lkml
To make network driver available for rt29 (actually rt21 and later). When doing "ping -f", the network driver seems to hang without this workaround for rt version 29. -- owa # I suppose this should be fixed in other way in future but for now...
--- rt29/kernel/irq/manage.c 2006-07-10 09:01:21.000000000 +0900
+++ rt-powerpc/kernel/irq/manage.c 2006-07-21 20:17:50.000000000 +0900@@ -723,15 +723,24 @@ static int do_irqd(void * __desc) set_current_state(TASK_INTERRUPTIBLE); do_hardirq(desc); cond_resched_all(); +#ifndef CONFIG_PPC_PMAC64 /* work around: to revert to patch-2.6.16-rt20 version */ local_irq_disable(); +#endif /* !CONFIG_PPC_PMAC64 */ __do_softirq(); local_irq_enable(); #ifdef CONFIG_SMP /* * Did IRQ affinities change? */ +#ifdef CONFIG_PPC_PMAC64 /* work around; revert to patch-2.6.16-rt20 version */ + if (!cpu_isset(smp_processor_id(), irq_affinity[irq])) { + mask = cpumask_of_cpu(any_online_cpu(irq_affinity[irq])); + set_cpus_allowed(current, mask); + } +#else if (!cpus_equal(current->cpus_allowed, irq_affinity[irq])) set_cpus_allowed(current, irq_affinity[irq]); +#endif /* CONFIG_PPC_PMAC64 */ #endif schedule(); }