linux-kernel - [PATCH v2 5/5] rv: Remove struct rv

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Message-Id: <58c63faec76ffb36552fcd1fdcc4b9dd841efd94.1753252872.git.namcao@linutronix.de>
Date: Wed, 23 Jul 2025 08:44:23 +0200
From: Nam Cao <namcao@...utronix.de>
To: Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Gabriele Monaco <gmonaco@...hat.com>,
	linux-trace-kernel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Nam Cao <namcao@...utronix.de>
Subject: [PATCH v2 5/5] rv: Remove struct rv_monitor::reacting

The field 'reacting' in struct rv_monitor is set but never used. Delete it.

Reviewed-by: Gabriele Monaco <gmonaco@...hat.com>
Signed-off-by: Nam Cao <namcao@...utronix.de>
---
 include/linux/rv.h            |  1 -
 kernel/trace/rv/rv_reactors.c | 13 +++++--------
 2 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/include/linux/rv.h b/include/linux/rv.h
index 2f867d6f72ba..80731242fe60 100644
--- a/include/linux/rv.h
+++ b/include/linux/rv.h
@@ -104,7 +104,6 @@ struct rv_monitor {
 #ifdef CONFIG_RV_REACTORS
 	struct rv_reactor	*reactor;
 	__printf(1, 2) void	(*react)(const char *msg, ...);
-	bool			reacting;
 #endif
 	struct list_head	list;
 	struct rv_monitor	*parent;
diff --git a/kernel/trace/rv/rv_reactors.c b/kernel/trace/rv/rv_reactors.c
index a8e849e6cd85..5e52886b4511 100644
--- a/kernel/trace/rv/rv_reactors.c
+++ b/kernel/trace/rv/rv_reactors.c
@@ -160,7 +160,7 @@ static const struct seq_operations monitor_reactors_seq_ops = {
 
 static void monitor_swap_reactors_single(struct rv_monitor *mon,
 					 struct rv_reactor *reactor,
-					 bool reacting, bool nested)
+					 bool nested)
 {
 	bool monitor_enabled;
 
@@ -173,7 +173,6 @@ static void monitor_swap_reactors_single(struct rv_monitor *mon,
 		rv_disable_monitor(mon);
 
 	mon->reactor = reactor;
-	mon->reacting = reacting;
 	mon->react = reactor->react;
 
 	/* enable only once if iterating through a container */
@@ -181,8 +180,7 @@ static void monitor_swap_reactors_single(struct rv_monitor *mon,
 		rv_enable_monitor(mon);
 }
 
-static void monitor_swap_reactors(struct rv_monitor *mon,
-				  struct rv_reactor *reactor, bool reacting)
+static void monitor_swap_reactors(struct rv_monitor *mon, struct rv_reactor *reactor)
 {
 	struct rv_monitor *p = mon;
 
@@ -190,7 +188,7 @@ static void monitor_swap_reactors(struct rv_monitor *mon,
 		list_for_each_entry_continue(p, &rv_monitors_list, list) {
 			if (p->parent != mon)
 				break;
-			monitor_swap_reactors_single(p, reactor, reacting, true);
+			monitor_swap_reactors_single(p, reactor, true);
 		}
 	/*
 	 * This call enables and disables the monitor if they were active.
@@ -198,7 +196,7 @@ static void monitor_swap_reactors(struct rv_monitor *mon,
 	 * All nested monitors are enabled also if they were off, we may refine
 	 * this logic in the future.
 	 */
-	monitor_swap_reactors_single(mon, reactor, reacting, false);
+	monitor_swap_reactors_single(mon, reactor, false);
 }
 
 static ssize_t
@@ -248,7 +246,7 @@ monitor_reactors_write(struct file *file, const char __user *user_buf,
 		else
 			enable = true;
 
-		monitor_swap_reactors(mon, reactor, enable);
+		monitor_swap_reactors(mon, reactor);
 
 		retval = count;
 		break;
@@ -439,7 +437,6 @@ int reactor_populate_monitor(struct rv_monitor *mon)
 	 * Configure as the rv_nop reactor.
 	 */
 	mon->reactor = get_reactor_rdef_by_name("nop");
-	mon->reacting = false;
 
 	return 0;
 }
-- 
2.39.5