xiaoxiang781216 commented on code in PR #16851:
URL: https://github.com/apache/nuttx/pull/16851#discussion_r2277420028


##########
arch/risc-v/src/mpfs/mpfs_usb.c:
##########
@@ -3430,6 +3430,10 @@ static int mpfs_usb_interrupt(int irq, void *context, 
void *arg)
   uint16_t pending_tx_ep;
   int i;
 
+#ifdef CONFIG_SMP
+  irqstate_t flags = enter_critical_section();

Review Comment:
   why not continue use spinlock 



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