[PATCH v2 2/3] s390/kdump: Mark __machine_kexec as __noreturn

Thorsten Blum
2025-11-14T11:04:45Z

__machine_kexec() ends by calling the non-returning function
__do_machine_kexec() and therefore also never returns. Annotate it with
the __noreturn attribute to improve compiler optimizations.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
arch/s390/kernel/machine_kexec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 9be6f58a6553..1d1c709bc088 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -248,7 +248,7 @@ static void __noreturn __do_machine_kexec(void *data)
/*
* Reset system and call either kdump or normal kexec
*/
-static void __machine_kexec(void *data)
+static void __noreturn __machine_kexec(void *data)
{
pfault_fini();
tracing_off();
--
2.51.1