[master] e72dc77 Constify.

[Poul-Henning Kamp]

commit e72dc77ce99d4dbcc649a96598a6cabb883dc59a
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Wed Sep 27 22:11:46 2017 +0000

    Constify.

diff --git a/bin/varnishd/common/common_param.h b/bin/varnishd/common/common_param.h
index ee9a12b..2366527 100644
--- a/bin/varnishd/common/common_param.h
+++ b/bin/varnishd/common/common_param.h
@@ -45,7 +45,7 @@ enum debug_bits {
 };
 
 static inline int
-COM_DO_DEBUG(uint8_t volatile *p, enum debug_bits x)
+COM_DO_DEBUG(const volatile uint8_t *p, enum debug_bits x)
 {
 	return (p[(unsigned)x>>3] & (0x80U >> ((unsigned)x & 7)));
 }
@@ -57,7 +57,7 @@ enum feature_bits {
 };
 
 static inline int
-COM_FEATURE(uint8_t volatile *p, enum feature_bits x)
+COM_FEATURE(const volatile uint8_t *p, enum feature_bits x)
 {
 	return (p[(unsigned)x>>3] & (0x80U >> ((unsigned)x & 7)));
 }