From patchwork series 482583

https://patchwork.ozlabs.org//project/linuxppc-dev/list/?series=482583

Author: Fox Snowpatch

arch/powerpc/include/asm/interrupt.h

@@ -106,7 +106,7 @@ static inline bool is_implicit_soft_masked(struct pt_regs *regs)
 	return search_kernel_soft_mask_table(regs->nip);
 }
 
-static inline void srr_regs_clobbered(void)
+static __always_inline void srr_regs_clobbered(void)
 {
 	local_paca->srr_valid = 0;
 	local_paca->hsrr_valid = 0;

arch/powerpc/include/asm/lv1call.h

@@ -14,6 +14,7 @@
 
 #include <linux/types.h>
 #include <linux/export.h>
+#include <asm/interrupt.h>
 
 /* lv1 call declaration macros */
 
@@ -208,7 +209,7 @@
 #define LV1_CALL(name, in, out, num)                               \
   extern s64 _lv1_##name(LV1_##in##_IN_##out##_OUT_ARG_DECL);      \
   static inline int lv1_##name(LV1_##in##_IN_##out##_OUT_ARG_DECL) \
-    {return _lv1_##name(LV1_##in##_IN_##out##_OUT_ARGS);}
+    {srr_regs_clobbered(); return _lv1_##name(LV1_##in##_IN_##out##_OUT_ARGS);}
 #endif
 
 #endif /* !defined(__ASSEMBLER__) */