git: a75f920158c7 - stable/14 - net/sff8472.h: add double-include protection

The branch stable/14 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=a75f920158c7f163ba1ebde1eb4ff42244d7a82d

commit a75f920158c7f163ba1ebde1eb4ff42244d7a82d
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2025-04-28 01:43:18 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2025-05-03 15:19:41 +0000

    net/sff8472.h: add double-include protection
    
    (cherry picked from commit 6cb5f1629e6f89a468e34625fd4a35ce4585500f)
---
 sys/net/sff8472.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sys/net/sff8472.h b/sys/net/sff8472.h
index a33dfed84b0b..4661ffd4cbd7 100644
--- a/sys/net/sff8472.h
+++ b/sys/net/sff8472.h
@@ -26,6 +26,9 @@
  * SUCH DAMAGE.
  */
 
+#ifndef _NET_SFF8472_H_
+#define _NET_SFF8472_H_
+
 /*
  * The following set of constants are from Document SFF-8472
  * "Diagnostic Monitoring Interface for Optical Transceivers" revision
@@ -524,3 +527,5 @@ static const char *sff_8024_id[SFF_8024_ID_LAST + 1] = {
  */
 
 #define SFF_8472_POWER_FACTOR 10000.0
+
+#endif