xiaoxiang781216 commented on a change in pull request #2517:
URL: https://github.com/apache/incubator-nuttx/pull/2517#discussion_r540766144
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File path: arch/arm/include/spinlock.h
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@@ -95,6 +95,11 @@
#define SP_DSB(n) __asm__ __volatile__ ("dsb sy" : : : "memory")
#define SP_DMB(n) __asm__ __volatile__ ("dmb st" : : : "memory")
+#ifdef CONFIG_ARM_WFE_SEV
Review comment:
why not always define SP_WFE/SP_SEV instead like SP_DSB/SP_DMB?
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