[PATCH] arm64: remove unneeded BUILD_BUG_ON assertion

[Dawei Li]

Since commit c02433dd6de3 ("arm64: split thread_info from task stack"),
CONFIG_THREAD_INFO_IN_TASK is enabled unconditionally for arm64. So
remove this always-true assertion from arch_dup_task_struct.

Signed-off-by: Dawei Li <dawei.li at shingroup.cn>
---
 arch/arm64/kernel/process.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 7387b68c745b..4ae31b7af6c3 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -290,9 +290,6 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
 		fpsimd_preserve_current_state();
 	*dst = *src;
 
-	/* We rely on the above assignment to initialize dst's thread_flags: */
-	BUILD_BUG_ON(!IS_ENABLED(CONFIG_THREAD_INFO_IN_TASK));
-
 	/*
 	 * Detach src's sve_state (if any) from dst so that it does not
 	 * get erroneously used or freed prematurely.  dst's copies
-- 
2.27.0