kmemleak: No need for scanning specific module sections

As kmemleak now scans all module sections that are allocated, writable
and non executable, there's no need to scan individual sections that
might reference data.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/kernel/module.c b/kernel/module.c
index 06f496a..cab4bce 100644 (file)
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2769,24 +2769,11 @@ static void find_module_sections(struct module *mod, struct load_info *info)
        mod->trace_events = section_objs(info, "_ftrace_events",
                                         sizeof(*mod->trace_events),
                                         &mod->num_trace_events);
-       /*
-        * This section contains pointers to allocated objects in the trace
-        * code and not scanning it leads to false positives.
-        */
-       kmemleak_scan_area(mod->trace_events, sizeof(*mod->trace_events) *
-                          mod->num_trace_events, GFP_KERNEL);
 #endif
 #ifdef CONFIG_TRACING
        mod->trace_bprintk_fmt_start = section_objs(info, "__trace_printk_fmt",
                                         sizeof(*mod->trace_bprintk_fmt_start),
                                         &mod->num_trace_bprintk_fmt);
-       /*
-        * This section contains pointers to allocated objects in the trace
-        * code and not scanning it leads to false positives.
-        */
-       kmemleak_scan_area(mod->trace_bprintk_fmt_start,
-                          sizeof(*mod->trace_bprintk_fmt_start) *
-                          mod->num_trace_bprintk_fmt, GFP_KERNEL);
 #endif
 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
        /* sechdrs[0].sh_size is always zero */