1 files changed, 0 insertions, 69 deletions
diff --git a/debian/patches-rt/net-Have-__napi_schedule_irqoff-disable-interrupts-o.patch b/debian/patches-rt/net-Have-__napi_schedule_irqoff-disable-interrupts-o.patch
deleted file mode 100644
index b0822e46d..000000000
--- a/debian/patches-rt/net-Have-__napi_schedule_irqoff-disable-interrupts-o.patch
+++ /dev/null
@@ -1,69 +0,0 @@
-From: Steven Rostedt <rostedt@goodmis.org>
-Date: Tue, 6 Dec 2016 17:50:30 -0500
-Subject: [PATCH] net: Have __napi_schedule_irqoff() disable interrupts on
- RT
-Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.2/older/patches-5.2.17-rt9.tar.xz
-
-A customer hit a crash where the napi sd->poll_list became corrupted.
-The customer had the bnx2x driver, which does a
-__napi_schedule_irqoff() in its interrupt handler. Unfortunately, when
-running with CONFIG_PREEMPT_RT_FULL, this interrupt handler is run as a
-thread and is preemptable. The call to ____napi_schedule() must be done
-with interrupts disabled to protect the per cpu softnet_data's
-"poll_list, which is protected by disabling interrupts (disabling
-preemption is enough when all interrupts are threaded and
-local_bh_disable() can't preempt)."
-
-As bnx2x isn't the only driver that does this, the safest thing to do
-is to make __napi_schedule_irqoff() call __napi_schedule() instead when
-CONFIG_PREEMPT_RT_FULL is enabled, which will call local_irq_save()
-before calling ____napi_schedule().
-
-Cc: stable-rt@vger.kernel.org
-Signed-off-by: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
-Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
----
- include/linux/netdevice.h |   12 ++++++++++++
- net/core/dev.c            |    2 ++
- 2 files changed, 14 insertions(+)
-
---- a/include/linux/netdevice.h
-+++ b/include/linux/netdevice.h
-@@ -419,7 +419,19 @@ typedef enum rx_handler_result rx_handle
- typedef rx_handler_result_t rx_handler_func_t(struct sk_buff **pskb);
- 
- void __napi_schedule(struct napi_struct *n);
-+
-+/*
-+ * When PREEMPT_RT_FULL is defined, all device interrupt handlers
-+ * run as threads, and they can also be preempted (without PREEMPT_RT
-+ * interrupt threads can not be preempted). Which means that calling
-+ * __napi_schedule_irqoff() from an interrupt handler can be preempted
-+ * and can corrupt the napi->poll_list.
-+ */
-+#ifdef CONFIG_PREEMPT_RT_FULL
-+#define __napi_schedule_irqoff(n) __napi_schedule(n)
-+#else
- void __napi_schedule_irqoff(struct napi_struct *n);
-+#endif
- 
- static inline bool napi_disable_pending(struct napi_struct *n)
- {
---- a/net/core/dev.c
-+++ b/net/core/dev.c
-@@ -6035,6 +6035,7 @@ bool napi_schedule_prep(struct napi_stru
- }
- EXPORT_SYMBOL(napi_schedule_prep);
- 
-+#ifndef CONFIG_PREEMPT_RT_FULL
- /**
-  * __napi_schedule_irqoff - schedule for receive
-  * @n: entry to schedule
-@@ -6046,6 +6047,7 @@ void __napi_schedule_irqoff(struct napi_
- 	____napi_schedule(this_cpu_ptr(&softnet_data), n);
- }
- EXPORT_SYMBOL(__napi_schedule_irqoff);
-+#endif
- 
- bool napi_complete_done(struct napi_struct *n, int work_done)
- {