git: 152e61976155 - main - bnxt: add guards around struct_group macros

The branch main has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=152e6197615570e7a2f5f1c6c2ed00ecee9dd10c

commit 152e6197615570e7a2f5f1c6c2ed00ecee9dd10c
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2025-05-03 20:22:32 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2025-05-05 10:44:22 +0000

    bnxt: add guards around struct_group macros
    
    The header file might be included after linux/stddef.h or others are
    included and the macros would be re-defined.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      3 days
    Reviewed by:    imp
    Differential Revision: https://reviews.freebsd.org/D50156
---
 sys/dev/bnxt/bnxt_en/bnxt_dcb.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/dev/bnxt/bnxt_en/bnxt_dcb.h b/sys/dev/bnxt/bnxt_en/bnxt_dcb.h
index 293f1b85dad5..fa68401583ca 100644
--- a/sys/dev/bnxt/bnxt_en/bnxt_dcb.h
+++ b/sys/dev/bnxt/bnxt_en/bnxt_dcb.h
@@ -40,13 +40,17 @@
 #define BNXT_DCB_CAP_DCBX_VER_IEEE		0x08
 #define BNXT_DCB_CAP_DCBX_STATIC		0x10
 
+#ifndef	__struct_group
 #define __struct_group(TAG, NAME, ATTRS, MEMBERS...) \
 	union { \
 		struct { MEMBERS } ATTRS; \
 		struct TAG { MEMBERS } ATTRS NAME; \
 	}
+#endif
+#ifndef	struct_group_attr
 #define struct_group_attr(NAME, ATTRS, MEMBERS...) \
 	__struct_group(/* no tag */, NAME, ATTRS, MEMBERS)
+#endif
 
 struct bnxt_cos2bw_cfg {
 	uint8_t			pad[3];