git: ac3110dc9ec0 - main - <net/if_strings.h>: Conditionally export table of bit names

The branch main has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=ac3110dc9ec06a9a1fb928902ac2ba742747be15

commit ac3110dc9ec06a9a1fb928902ac2ba742747be15
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2025-04-28 17:05:38 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2025-04-28 17:05:38 +0000

    <net/if_strings.h>: Conditionally export table of bit names
    
    Only export the array of string names if _WANT_IFCAP_BIT_NAMES is
    defined.  Exporting them unconditionally can trigger unused variable
    warnings if a consumer doesn't use the array.
    
    Reviewed by:    olce, bz, brooks
    Differential Revision:  https://reviews.freebsd.org/D49954
---
 sbin/ifconfig/ifconfig_netlink.c | 2 ++
 sys/net/if_strings.h             | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/sbin/ifconfig/ifconfig_netlink.c b/sbin/ifconfig/ifconfig_netlink.c
index 5a986e840d7f..c1e6b7be587f 100644
--- a/sbin/ifconfig/ifconfig_netlink.c
+++ b/sbin/ifconfig/ifconfig_netlink.c
@@ -25,6 +25,8 @@
  * SUCH DAMAGE.
  */
 
+#define _WANT_IFCAP_BIT_NAMES
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/sys/net/if_strings.h b/sys/net/if_strings.h
index a127fa273a8b..a40debd30ed5 100644
--- a/sys/net/if_strings.h
+++ b/sys/net/if_strings.h
@@ -66,6 +66,7 @@
 #define	IFCAP2_RXTLS6_NAME	IFCAP_RXTLS6_NAME
 #define	IFCAP2_IPSEC_OFFLOAD_NAME IFCAP_IPSEC_OFFLOAD_NAME
 
+#ifdef _WANT_IFCAP_BIT_NAMES
 static const char *ifcap_bit_names[] = {
 	IFCAP_RXCSUM_NAME,
 	IFCAP_TXCSUM_NAME,
@@ -108,5 +109,6 @@ static const char *ifcap_bit_names[] = {
 _Static_assert(sizeof(ifcap_bit_names) >= IFCAP_B_SIZE * sizeof(char *),
     "ifcap bit names missing from ifcap_bit_names");
 #endif
+#endif
 
 #endif