tracing: Fix HAVE_DYNAMIC_FTRACE_WITH_REGS ifdef

JIRA: https://issues.redhat.com/browse/RHEL-101598

commit bdbddb1
Author: Petr Pavlu <petr.pavlu@suse.com>
Date:   Tue Feb 13 14:24:34 2024 +0100

    tracing: Fix HAVE_DYNAMIC_FTRACE_WITH_REGS ifdef

    Commit a8b9cf6 ("ftrace: Fix DIRECT_CALLS to use SAVE_REGS by
    default") attempted to fix an issue with direct trampolines on x86, see
    its description for details. However, it wrongly referenced the
    HAVE_DYNAMIC_FTRACE_WITH_REGS config option and the problem is still
    present.

    Add the missing "CONFIG_" prefix for the logic to work as intended.

    Link: https://lore.kernel.org/linux-trace-kernel/20240213132434.22537-1-petr.pavlu@suse.com

    Fixes: a8b9cf6 ("ftrace: Fix DIRECT_CALLS to use SAVE_REGS by default")
    Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
    Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>

Author: jeromemarchand

kernel/trace/ftrace.c

@@ -5281,7 +5281,7 @@ static int register_ftrace_function_nolock(struct ftrace_ops *ops);
  * not support ftrace_regs_caller but direct_call, use SAVE_ARGS so that it
  * jumps from ftrace_caller for multiple ftrace_ops.
  */
-#ifndef HAVE_DYNAMIC_FTRACE_WITH_REGS
+#ifndef CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS
 #define MULTI_FLAGS (FTRACE_OPS_FL_DIRECT | FTRACE_OPS_FL_SAVE_ARGS)
 #else
 #define MULTI_FLAGS (FTRACE_OPS_FL_DIRECT | FTRACE_OPS_FL_SAVE_REGS)