[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a diff in pull request #7021: Fix race condition in RaspberryPi Pico W WiFi

[GitBox]

xiaoxiang781216 commented on code in PR #7021:
URL: https://github.com/apache/incubator-nuttx/pull/7021#discussion_r964738262


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arch/arm/src/rp2040/rp2040_cyw43439.c:
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@@ -54,6 +54,8 @@ bool  g_print_gspi = false;
 
 #define TX_FIFO_SIZE    4
 
+#define DMB()  asm volatile ("dmb" ::: "memory")

Review Comment:
   call ARM_DMB



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