[PATCH] powerc: Update asm-prototypes.h comment

[Michael Ellerman]

This header was recently cleaned up in commit 76222808fc25 ("powerpc:
Move C prototypes out of asm-prototypes.h"), update the comment to
reflect it's proper purpose.

Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
---
 arch/powerpc/include/asm/asm-prototypes.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/asm-prototypes.h b/arch/powerpc/include/asm/asm-prototypes.h
index d995c65d18ab..eda6dba9378f 100644
--- a/arch/powerpc/include/asm/asm-prototypes.h
+++ b/arch/powerpc/include/asm/asm-prototypes.h
@@ -2,8 +2,9 @@
 #ifndef _ASM_POWERPC_ASM_PROTOTYPES_H
 #define _ASM_POWERPC_ASM_PROTOTYPES_H
 /*
- * This file is for prototypes of C functions that are only called
- * from asm, and any associated variables.
+ * This file is for C prototypes of asm symbols that are EXPORTed.
+ * It allows the modversions logic to see their prototype and
+ * generate proper CRCs for them.
  *
  * Copyright 2016, Daniel Axtens, IBM Corporation.
  */
-- 
2.35.3