linux-kernel - [PATCH 2/2] rv: Make rtapp/pagefault monitor depends on CONFIG

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Message-ID: <20251002082317.973839-1-namcao@linutronix.de>
Date: Thu,  2 Oct 2025 08:23:17 +0000
From: Nam Cao <namcao@...utronix.de>
To: Gabriele Monaco <gmonaco@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	linux-trace-kernel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Nam Cao <namcao@...utronix.de>,
	kernel test robot <lkp@...el.com>,
	stable@...r.kernel.org
Subject: [PATCH 2/2] rv: Make rtapp/pagefault monitor depends on CONFIG_MMU

There is no page fault without MMU. Compiling the rtapp/pagefault monitor
without CONFIG_MMU fails as page fault tracepoints' definitions are not
available.

Make rtapp/pagefault monitor depends on CONFIG_MMU.

Fixes: 9162620eb604 ("rv: Add rtapp_pagefault monitor")
Signed-off-by: Nam Cao <namcao@...utronix.de>
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202509260455.6Z9Vkty4-lkp@intel.com/
Cc: stable@...r.kernel.org
---
 kernel/trace/rv/monitors/pagefault/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/trace/rv/monitors/pagefault/Kconfig b/kernel/trace/rv/monitors/pagefault/Kconfig
index 5e16625f1653..0e013f00c33b 100644
--- a/kernel/trace/rv/monitors/pagefault/Kconfig
+++ b/kernel/trace/rv/monitors/pagefault/Kconfig
@@ -5,6 +5,7 @@ config RV_MON_PAGEFAULT
 	select RV_LTL_MONITOR
 	depends on RV_MON_RTAPP
 	depends on X86 || RISCV
+	depends on MMU
 	default y
 	select LTL_MON_EVENTS_ID
 	bool "pagefault monitor"
-- 
2.51.0