Merge tag 'fixes-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner...

[linux-2.6-microblaze.git] / arch / powerpc / include / asm / asm-const.h

diff --git a/arch/powerpc/include/asm/asm-const.h b/arch/powerpc/include/asm/asm-const.h
index 082c153..0ce2368 100644 (file)
--- a/arch/powerpc/include/asm/asm-const.h
+++ b/arch/powerpc/include/asm/asm-const.h
@@ -11,4 +11,17 @@
 #  define __ASM_CONST(x)       x##UL
 #  define ASM_CONST(x)         __ASM_CONST(x)
 #endif
+
+/*
+ * Inline assembly memory constraint
+ *
+ * GCC 4.9 doesn't properly handle pre update memory constraint "m<>"
+ *
+ */
+#if defined(GCC_VERSION) && GCC_VERSION < 50000
+#define UPD_CONSTR ""
+#else
+#define UPD_CONSTR "<>"
+#endif
+
 #endif /* _ASM_POWERPC_ASM_CONST_H */