lockdep: Rename trace_{hard,soft}{irq_context,irqs_enabled}()

Continue what commit:

  d820ac4 ("locking: rename trace_softirq_[enter|exit] => lockdep_softirq_[enter|exit]")

started, rename these to avoid confusing them with tracepoints.

git grep -l "trace_\(soft\|hard\)\(irq_context\|irqs_enabled\)" | while read file;
do
	sed -ie 's/trace_\(soft\|hard\)\(irq_context\|irqs_enabled\)/lockdep_\1\2/g' $file;
done

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200320115859.178626842@infradead.org

Author: Peter Zijlstra

include/linux/irqflags.h

@@ -31,10 +31,10 @@
 #ifdef CONFIG_TRACE_IRQFLAGS
   extern void trace_hardirqs_on(void);
   extern void trace_hardirqs_off(void);
-# define trace_hardirq_context(p)	((p)->hardirq_context)
-# define trace_softirq_context(p)	((p)->softirq_context)
-# define trace_hardirqs_enabled(p)	((p)->hardirqs_enabled)
-# define trace_softirqs_enabled(p)	((p)->softirqs_enabled)
+# define lockdep_hardirq_context(p)	((p)->hardirq_context)
+# define lockdep_softirq_context(p)	((p)->softirq_context)
+# define lockdep_hardirqs_enabled(p)	((p)->hardirqs_enabled)
+# define lockdep_softirqs_enabled(p)	((p)->softirqs_enabled)
 # define lockdep_hardirq_enter()		\
 do {						\
 	current->hardirq_context++;		\
@@ -54,10 +54,10 @@ do {						\
 #else
 # define trace_hardirqs_on()		do { } while (0)
 # define trace_hardirqs_off()		do { } while (0)
-# define trace_hardirq_context(p)	0
-# define trace_softirq_context(p)	0
-# define trace_hardirqs_enabled(p)	0
-# define trace_softirqs_enabled(p)	0
+# define lockdep_hardirq_context(p)	0
+# define lockdep_softirq_context(p)	0
+# define lockdep_hardirqs_enabled(p)	0
+# define lockdep_softirqs_enabled(p)	0
 # define lockdep_hardirq_enter()	do { } while (0)
 # define lockdep_hardirq_exit()		do { } while (0)
 # define lockdep_softirq_enter()	do { } while (0)

kernel/locking/lockdep.c

@@ -3081,10 +3081,10 @@ print_usage_bug(struct task_struct *curr, struct held_lock *this,
 
 	pr_warn("%s/%d [HC%u[%lu]:SC%u[%lu]:HE%u:SE%u] takes:\n",
 		curr->comm, task_pid_nr(curr),
-		trace_hardirq_context(curr), hardirq_count() >> HARDIRQ_SHIFT,
-		trace_softirq_context(curr), softirq_count() >> SOFTIRQ_SHIFT,
-		trace_hardirqs_enabled(curr),
-		trace_softirqs_enabled(curr));
+		lockdep_hardirq_context(curr), hardirq_count() >> HARDIRQ_SHIFT,
+		lockdep_softirq_context(curr), softirq_count() >> SOFTIRQ_SHIFT,
+		lockdep_hardirqs_enabled(curr),
+		lockdep_softirqs_enabled(curr));
 	print_lock(this);
 
 	pr_warn("{%s} state was registered at:\n", usage_str[prev_bit]);

kernel/softirq.c

@@ -224,7 +224,7 @@ static inline bool lockdep_softirq_start(void)
 {
 	bool in_hardirq = false;
 
-	if (trace_hardirq_context(current)) {
+	if (lockdep_hardirq_context(current)) {
 		in_hardirq = true;
 		lockdep_hardirq_exit();
 	}

tools/include/linux/irqflags.h

@@ -2,10 +2,10 @@
 #ifndef _LIBLOCKDEP_LINUX_TRACE_IRQFLAGS_H_
 #define _LIBLOCKDEP_LINUX_TRACE_IRQFLAGS_H_
 
-# define trace_hardirq_context(p)	0
-# define trace_softirq_context(p)	0
-# define trace_hardirqs_enabled(p)	0
-# define trace_softirqs_enabled(p)	0
+# define lockdep_hardirq_context(p)	0
+# define lockdep_softirq_context(p)	0
+# define lockdep_hardirqs_enabled(p)	0
+# define lockdep_softirqs_enabled(p)	0
 # define lockdep_hardirq_enter()	do { } while (0)
 # define lockdep_hardirq_exit()		do { } while (0)
 # define lockdep_softirq_enter()	do { } while (0)