diff options
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/ftrace.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 1903b80db6eb..c141d347f71a 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2388,6 +2388,14 @@ struct ftrace_ops direct_ops = { .flags = FTRACE_OPS_FL_IPMODIFY | FTRACE_OPS_FL_RECURSION_SAFE | FTRACE_OPS_FL_DIRECT | FTRACE_OPS_FL_SAVE_REGS | FTRACE_OPS_FL_PERMANENT, + /* + * By declaring the main trampoline as this trampoline + * it will never have one allocated for it. Allocated + * trampolines should not call direct functions. + * The direct_ops should only be called by the builtin + * ftrace_regs_caller trampoline. + */ + .trampoline = FTRACE_REGS_ADDR, }; #endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS */ |