Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
  35d92abfbad8 ("net: hns3: fix kernel crash when devlink reload during initialization")
  2a1a1a7b5fd7 ("net: hns3: add command queue trace for hns3")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

4 files changed, 22 insertions, 5 deletions

diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index a5e0dfc44d24..0de66f0ff43a 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -1798,6 +1798,7 @@ static int rmem_swiotlb_device_init(struct reserved_mem *rmem,
 		mem->for_alloc = true;
 #ifdef CONFIG_SWIOTLB_DYNAMIC
 		spin_lock_init(&mem->lock);
+		INIT_LIST_HEAD_RCU(&mem->pools);
 #endif
 		add_mem_pool(mem, pool);
 
diff --git a/kernel/softirq.c b/kernel/softirq.c
index b315b21fb28c..02582017759a 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -508,7 +508,7 @@ static inline bool lockdep_softirq_start(void) { return false; }
 static inline void lockdep_softirq_end(bool in_hardirq) { }
 #endif
 
-asmlinkage __visible void __softirq_entry __do_softirq(void)
+static void handle_softirqs(bool ksirqd)
 {
 	unsigned long end = jiffies + MAX_SOFTIRQ_TIME;
 	unsigned long old_flags = current->flags;
@@ -563,8 +563,7 @@ restart:
 		pending >>= softirq_bit;
 	}
 
-	if (!IS_ENABLED(CONFIG_PREEMPT_RT) &&
-	    __this_cpu_read(ksoftirqd) == current)
+	if (!IS_ENABLED(CONFIG_PREEMPT_RT) && ksirqd)
 		rcu_softirq_qs();
 
 	local_irq_disable();
@@ -584,6 +583,11 @@ restart:
 	current_restore_flags(old_flags, PF_MEMALLOC);
 }
 
+asmlinkage __visible void __softirq_entry __do_softirq(void)
+{
+	handle_softirqs(false);
+}
+
 /**
  * irq_enter_rcu - Enter an interrupt context with RCU watching
  */
@@ -921,7 +925,7 @@ static void run_ksoftirqd(unsigned int cpu)
 		 * We can safely run softirq on inline stack, as we are not deep
 		 * in the task stack here.
 		 */
-		__do_softirq();
+		handle_softirqs(true);
 		ksoftirqd_run_end();
 		cond_resched();
 		return;
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 52f75c36bbca..6ef29eba90ce 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -2552,6 +2552,14 @@ static int event_callback(const char *name, umode_t *mode, void **data,
 	return 0;
 }
 
+/* The file is incremented on creation and freeing the enable file decrements it */
+static void event_release(const char *name, void *data)
+{
+	struct trace_event_file *file = data;
+
+	event_file_put(file);
+}
+
 static int
 event_create_dir(struct eventfs_inode *parent, struct trace_event_file *file)
 {
@@ -2566,6 +2574,7 @@ event_create_dir(struct eventfs_inode *parent, struct trace_event_file *file)
 		{
 			.name		= "enable",
 			.callback	= event_callback,
+			.release	= event_release,
 		},
 		{
 			.name		= "filter",
@@ -2634,6 +2643,9 @@ event_create_dir(struct eventfs_inode *parent, struct trace_event_file *file)
 		return ret;
 	}
 
+	/* Gets decremented on freeing of the "enable" file */
+	event_file_get(file);
+
 	return 0;
 }
 
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 87337a0c8e03..c3f2937b434a 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -1464,7 +1464,7 @@ static int traceprobe_parse_probe_arg_body(const char *argv, ssize_t *size,
 		parg->fmt = kmalloc(len, GFP_KERNEL);
 		if (!parg->fmt) {
 			ret = -ENOMEM;
-			goto out;
+			goto fail;
 		}
 		snprintf(parg->fmt, len, "%s[%d]", parg->type->fmttype,
 			 parg->count);