linux-kernel - [PATCH] arm64: Remove the check for CONFIG_TINY

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Message-Id: <20240914090040.166671-1-ryotkkr98@gmail.com>
Date: Sat, 14 Sep 2024 18:00:40 +0900
From: Ryo Takakura <ryotkkr98@...il.com>
To: catalin.marinas@....com,
	will@...nel.org,
	broonie@...nel.org,
	mark.rutland@....com
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Ryo Takakura <ryotkkr98@...il.com>
Subject: [PATCH] arm64: Remove the check for CONFIG_TINY_RCU

Since the commit 4b3dc9679cf77 ("arm64: force CONFIG_SMP=y and remove
redundant #ifdefs"), arm64 defaults to CONFIG_SMP but TINY_RCU is cofigured
only for !SMP systems.

Remove the check for CONFIG_TINY_RCU as it should always be false.

Signed-off-by: Ryo Takakura <ryotkkr98@...il.com>
---
 arch/arm64/kernel/entry-common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/entry-common.c b/arch/arm64/kernel/entry-common.c
index b77a15955f28..a9765364fc67 100644
--- a/arch/arm64/kernel/entry-common.c
+++ b/arch/arm64/kernel/entry-common.c
@@ -40,7 +40,7 @@ static __always_inline void __enter_from_kernel_mode(struct pt_regs *regs)
 {
 	regs->exit_rcu = false;
 
-	if (!IS_ENABLED(CONFIG_TINY_RCU) && is_idle_task(current)) {
+	if (is_idle_task(current)) {
 		lockdep_hardirqs_off(CALLER_ADDR0);
 		ct_irq_enter();
 		trace_hardirqs_off_finish();
-- 
2.34.1