linux-kernel - [PATCH 7/9] ARM: entry: call __exit_to_user_mode

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Message-ID: <20260125164016.331257-8-qq570070308@gmail.com>
Date: Mon, 26 Jan 2026 00:40:14 +0800
From: Xie Yuanbin <qq570070308@...il.com>
To: linux@...linux.org.uk,
	johannes@...solutions.net,
	masahiroy@...nel.org,
	jgross@...e.com,
	nsc@...nel.org,
	kees@...nel.org,
	tglx@...nel.org,
	mingo@...nel.org,
	frederic@...nel.org,
	paulmck@...nel.org,
	peterz@...radead.org,
	mathieu.desnoyers@...icios.com,
	luto@...nel.org,
	edumazet@...gle.com
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Xie Yuanbin <qq570070308@...il.com>
Subject: [PATCH 7/9] ARM: entry: call __exit_to_user_mode_validate() when returning to user

Call __exit_to_user_mode_validate() when returning to user, just like
what other architectures do.

Signed-off-by: Xie Yuanbin <qq570070308@...il.com>
---
 arch/arm/kernel/entry.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/kernel/entry.c b/arch/arm/kernel/entry.c
index 5de345e9146f..85df47b5c359 100644
--- a/arch/arm/kernel/entry.c
+++ b/arch/arm/kernel/entry.c
@@ -18,6 +18,7 @@ void arm_exit_to_user_mode_no_work_pending(void)
 	if (IS_ENABLED(CONFIG_GENERIC_ENTRY))
 		tick_nohz_user_enter_prepare();
 	rseq_irqentry_exit_to_user_mode();
+	__exit_to_user_mode_validate();
 	exit_to_user_mode();
 #ifdef CONFIG_KSTACK_ERASE
 	stackleak_erase_on_task_stack();
-- 
2.51.0