From 3e245b7b74c3a2ead5fa4bad27cc275284c75189 Mon Sep 17 00:00:00 2001 From: Huacai Chen Date: Wed, 14 May 2025 22:17:52 +0800 Subject: [PATCH] LoongArch: Move __arch_cpu_idle() to .cpuidle.text section Now arch_cpu_idle() is annotated with __cpuidle which means it is in the .cpuidle.text section, but __arch_cpu_idle() isn't. Thus, fix the missing .cpuidle.text section assignment for __arch_cpu_idle() in order to correct backtracing with nmi_backtrace(). The principle is similar to the commit 97c8580e85cf81c ("MIPS: Annotate cpu_wait implementations with __cpuidle") Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen --- arch/loongarch/kernel/genex.S | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/loongarch/kernel/genex.S b/arch/loongarch/kernel/genex.S index 4f0912141781..733a7665e434 100644 --- a/arch/loongarch/kernel/genex.S +++ b/arch/loongarch/kernel/genex.S @@ -16,6 +16,7 @@ #include #include + .section .cpuidle.text, "ax" .align 5 SYM_FUNC_START(__arch_cpu_idle) /* start of idle interrupt region */ @@ -31,14 +32,16 @@ SYM_FUNC_START(__arch_cpu_idle) */ idle 0 /* end of idle interrupt region */ -1: jr ra +idle_exit: + jr ra SYM_FUNC_END(__arch_cpu_idle) + .previous SYM_CODE_START(handle_vint) UNWIND_HINT_UNDEFINED BACKUP_T0T1 SAVE_ALL - la_abs t1, 1b + la_abs t1, idle_exit LONG_L t0, sp, PT_ERA /* 3 instructions idle interrupt region */ ori t0, t0, 0b1100 -- 2.50.1