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-rw-r--r--net/core/dev.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 222b1d322c96..febb23708184 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6501,11 +6501,18 @@ EXPORT_SYMBOL(napi_schedule_prep);
* __napi_schedule_irqoff - schedule for receive
* @n: entry to schedule
*
- * Variant of __napi_schedule() assuming hard irqs are masked
+ * Variant of __napi_schedule() assuming hard irqs are masked.
+ *
+ * On PREEMPT_RT enabled kernels this maps to __napi_schedule()
+ * because the interrupt disabled assumption might not be true
+ * due to force-threaded interrupts and spinlock substitution.
*/
void __napi_schedule_irqoff(struct napi_struct *n)
{
- ____napi_schedule(this_cpu_ptr(&softnet_data), n);
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+ ____napi_schedule(this_cpu_ptr(&softnet_data), n);
+ else
+ __napi_schedule(n);
}
EXPORT_SYMBOL(__napi_schedule_irqoff);