__module_text_address() can be invoked within a RCU section, there is no
requirement to have preemption disabled.
Replace the preempt_disable() section around __module_text_address()
with RCU.
Cc: Russell King <li...@armlinux.org.uk>
Cc: linux-arm-ker...@lists.infradead.org
Acked-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de>
---
arch/arm/kernel/module-plts.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/arm/kernel/module-plts.c b/arch/arm/kernel/module-plts.c
index da2ee8d6ef1a7..354ce16d83cb5 100644
--- a/arch/arm/kernel/module-plts.c
+++ b/arch/arm/kernel/module-plts.c
@@ -285,11 +285,9 @@ bool in_module_plt(unsigned long loc)
struct module *mod;
bool ret;
- preempt_disable();
+ guard(rcu)();
mod = __module_text_address(loc);
ret = mod && (loc - (u32)mod->arch.core.plt_ent <
mod->arch.core.plt_count * PLT_ENT_SIZE ||
loc - (u32)mod->arch.init.plt_ent <
mod->arch.init.plt_count * PLT_ENT_SIZE);
- preempt_enable();
-
return ret;
}
--
2.47.1
