When compiling on LoongArch, there exists the following objtool warning in arch/loongarch/kernel/machine_kexec.o:
kexec_reboot() falls through to next function crash_shutdown_secondary() Avoid unreachable() as it can (and will in the absence of UBSAN) generate fallthrough code. Use BUG() so we get a "break BRK_BUG" trap (with unreachable annotation). Signed-off-by: Tiezhu Yang <[email protected]> --- arch/loongarch/kernel/machine_kexec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/loongarch/kernel/machine_kexec.c b/arch/loongarch/kernel/machine_kexec.c index 8ae641dc53bb..f9381800e291 100644 --- a/arch/loongarch/kernel/machine_kexec.c +++ b/arch/loongarch/kernel/machine_kexec.c @@ -126,14 +126,14 @@ void kexec_reboot(void) /* All secondary cpus go to kexec_smp_wait */ if (smp_processor_id() > 0) { relocated_kexec_smp_wait(NULL); - unreachable(); + BUG(); } #endif do_kexec = (void *)reboot_code_buffer; do_kexec(efi_boot, cmdline_ptr, systable_ptr, start_addr, first_ind_entry); - unreachable(); + BUG(); } -- 2.42.0
