Constify ifmedia descriptions

[Christian Weisgerber]

This constifies the ifmedia description tables, both in the kernel
(yes, I did a test compile with option IFMEDIA_DEBUG) and one
straggler in userland.

ok?

diff 3c78bc9451ce7ce927aaecc9f8e5113de7023a9c /usr/src
blob - 0ef67c56edd8be741533ccba974c11f198887b32
file + sbin/ifconfig/ifconfig.c
--- sbin/ifconfig/ifconfig.c
+++ sbin/ifconfig/ifconfig.c
@@ -3062,7 +3062,7 @@ const struct ifmedia_description ifm_type_descriptions
 const struct ifmedia_description ifm_subtype_descriptions[] =
     IFM_SUBTYPE_DESCRIPTIONS;
 
-struct ifmedia_description ifm_mode_descriptions[] =
+const struct ifmedia_description ifm_mode_descriptions[] =
     IFM_MODE_DESCRIPTIONS;
 
 const struct ifmedia_description ifm_option_descriptions[] =
blob - e71f433cfa6b61350625308c1328bb8e288e9dd5
file + sys/net/if_media.c
--- sys/net/if_media.c
+++ sys/net/if_media.c
@@ -393,7 +393,7 @@ ifmedia_delete_instance(struct ifmedia *ifm, uint64_t 
  * Compute the interface `baudrate' from the media, for the interface
  * metrics (used by routing daemons).
  */
-struct ifmedia_baudrate ifmedia_baudrate_descriptions[] =
+const struct ifmedia_baudrate ifmedia_baudrate_descriptions[] =
     IFM_BAUDRATE_DESCRIPTIONS;
 
 uint64_t
@@ -413,13 +413,13 @@ ifmedia_baudrate(uint64_t mword)
 
 #ifdef IFMEDIA_DEBUG
 
-struct ifmedia_description ifm_type_descriptions[] =
+const struct ifmedia_description ifm_type_descriptions[] =
     IFM_TYPE_DESCRIPTIONS;
 
-struct ifmedia_description ifm_subtype_descriptions[] =
+const struct ifmedia_description ifm_subtype_descriptions[] =
     IFM_SUBTYPE_DESCRIPTIONS;
 
-struct ifmedia_description ifm_option_descriptions[] =
+const struct ifmedia_description ifm_option_descriptions[] =
     IFM_OPTION_DESCRIPTIONS;
 
 /*
@@ -428,7 +428,7 @@ struct ifmedia_description ifm_option_descriptions[] =
 static void
 ifmedia_printword(uint64_t ifmw)
 {
-       struct ifmedia_description *desc;
+       const struct ifmedia_description *desc;
        uint64_t seen_option = 0;
 
        /* Print the top-level interface type. */
-- 
Christian "naddy" Weisgerber                          na...@mips.inka.de