[PATCH v4 2/3] LoongArch: Skip relocation-time KASLR if it has already been applied

When the kernel is relocated during early boot, a randomized load
address may already have been selected and applied. In this case,
performing KASLR again in relocate.c is unnecessary.

Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: WANG Rui <[email protected]>
---
 arch/loongarch/kernel/relocate.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/loongarch/kernel/relocate.c b/arch/loongarch/kernel/relocate.c
index 16f6a9b39659..c36604a81d08 100644
--- a/arch/loongarch/kernel/relocate.c
+++ b/arch/loongarch/kernel/relocate.c
@@ -139,6 +139,10 @@ static inline __init bool kaslr_disabled(void)
 	char *str;
 	const char *builtin_cmdline = CONFIG_CMDLINE;
 
+	/* KASLR is performed during early boot. */
+	if (kaslr_offset())
+		return true;
+
 	str = strstr(builtin_cmdline, "nokaslr");
 	if (str == builtin_cmdline || (str > builtin_cmdline && *(str - 1) == ' ')) {
 		pr_info(KASLR_DISABLED_MESSAGE, "\'nokaslr\'", "built-in");
-- 
2.54.0