[PATCH v4 8/9] kasan/s390: call kasan_init_generic in kasan_init

[Sabyrzhan Tasbolatov <snovitoll@gmail.com>]

Call kasan_init_generic() which handles Generic KASAN initialization
and prints the banner. Since s390 doesn't select ARCH_DEFER_KASAN,
kasan_enable() will be a no-op, and kasan_enabled() will return
IS_ENABLED(CONFIG_KASAN) for optimal compile-time behavior.

s390 sets up KASAN mappings in the decompressor and can run with KASAN
enabled from very early, so it doesn't need runtime control.

Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217049
Signed-off-by: Sabyrzhan Tasbolatov <snovitoll@gmail.com>
---
 arch/s390/kernel/early.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 9adfbdd377d..544e5403dd9 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -21,6 +21,7 @@
 #include <linux/kernel.h>
 #include <asm/asm-extable.h>
 #include <linux/memblock.h>
+#include <linux/kasan.h>
 #include <asm/access-regs.h>
 #include <asm/asm-offsets.h>
 #include <asm/machine.h>
@@ -65,7 +66,7 @@ static void __init kasan_early_init(void)
 {
 #ifdef CONFIG_KASAN
 	init_task.kasan_depth = 0;
-	pr_info("KernelAddressSanitizer initialized\n");
+	kasan_init_generic();
 #endif
 }
 
-- 
2.34.1