hujun260 commented on code in PR #18049:
URL: https://github.com/apache/nuttx/pull/18049#discussion_r2711040395
##########
include/nuttx/spinlock.h:
##########
@@ -548,14 +568,22 @@ irqstate_t spin_lock_irqsave_nopreempt(FAR volatile
spinlock_t *lock)
*
****************************************************************************/
+#ifdef CONFIG_SPINLOCK
static inline_function
-irqstate_t rspin_lock_irqsave(FAR rspinlock_t *lock)
+void rspin_lock(FAR rspinlock_t *lock)
{
rspinlock_t new_val;
rspinlock_t old_val = RSPINLOCK_INITIALIZER;
- irqstate_t flags = up_irq_save();
int cpu = this_cpu() + 1;
+ /* Already owned this lock. */
+
+ if (lock->owner == cpu)
Review Comment:
Yes, rspin_lock cannot be used in interrupt-enabled contexts, just like the
spin_lock function.
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