From: Tejun Heo <tj@kernel.org> mainline inclusion from mainline-v6.12-rc1 commit 62d3726d4cd66f3e48dfe0f0401e0d74e58c2170 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IDC9YK Reference: https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commi... -------------------------------- a2f4b16e736d ("sched_ext: Build fix on !CONFIG_STACKTRACE[_SUPPORT]") tried fixing build when !CONFIG_STACKTRACE but didn't so fully. Also put stack_trace_print() and stack_trace_save() inside CONFIG_STACKTRACE to fix build when !CONFIG_STACKTRACE. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202409220642.fDW2OmWc-lkp@intel.com/ Signed-off-by: Zicheng Qu <quzicheng@huawei.com> --- kernel/sched/ext.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 59d50be90bf0..4af2f47ca6e7 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -4477,8 +4477,9 @@ static void scx_ops_disable_workfn(struct kthread_work *work) if (ei->msg[0] != '\0') pr_err("sched_ext: %s: %s\n", scx_ops.name, ei->msg); - +#ifdef CONFIG_STACKTRACE stack_trace_print(ei->bt, ei->bt_len, 2); +#endif } else { pr_info("sched_ext: BPF scheduler \"%s\" disabled (%s)\n", scx_ops.name, ei->reason); @@ -4855,10 +4856,10 @@ static __printf(3, 4) void scx_ops_exit_kind(enum scx_exit_kind kind, return; ei->exit_code = exit_code; - +#ifdef CONFIG_STACKTRACE if (kind >= SCX_EXIT_ERROR) ei->bt_len = stack_trace_save(ei->bt, SCX_EXIT_BT_LEN, 1); - +#endif va_start(args, fmt); vscnprintf(ei->msg, SCX_EXIT_MSG_LEN, fmt, args); va_end(args); -- 2.34.1