module::kallsyms can be accessed under RCU assumption.
Use rcu_dereference() to access module::kallsyms.
Update callers.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
kernel/module/kallsyms.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/kernel/module/kallsyms.c b/kernel/module/kallsyms.c
index e3c55bc879c11..0e8ec6486d95c 100644
--- a/kernel/module/kallsyms.c
+++ b/kernel/module/kallsyms.c
@@ -476,10 +476,8 @@ int module_kallsyms_on_each_symbol(const char *modname,
if (modname && strcmp(modname, mod->name))
continue;
- /* Use rcu_dereference_sched() to remain compliant with the sparse tool */
- preempt_disable();
- kallsyms = rcu_dereference_sched(mod->kallsyms);
- preempt_enable();
+ kallsyms = rcu_dereference_check(mod->kallsyms,
+ lockdep_is_held(&module_mutex));
for (i = 0; i < kallsyms->num_symtab; i++) {
const Elf_Sym *sym = &kallsyms->symtab[i];
--
2.45.2
