Use FTRACE_OPS_FL_PERMANENT flag to be immune to toggling the 'ftrace_enabled' sysctl knob. Signed-off-by: Miroslav Benes <mbenes@xxxxxxx> --- kernel/livepatch/patch.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/livepatch/patch.c b/kernel/livepatch/patch.c index bd43537702bd..b552cf2d85f8 100644 --- a/kernel/livepatch/patch.c +++ b/kernel/livepatch/patch.c @@ -196,7 +196,8 @@ static int klp_patch_func(struct klp_func *func) ops->fops.func = klp_ftrace_handler; ops->fops.flags = FTRACE_OPS_FL_SAVE_REGS | FTRACE_OPS_FL_DYNAMIC | - FTRACE_OPS_FL_IPMODIFY; + FTRACE_OPS_FL_IPMODIFY | + FTRACE_OPS_FL_PERMANENT; list_add(&ops->node, &klp_ops); -- 2.23.0
