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Date:      Fri, 24 Apr 2026 17:55:54 +0000
From:      John Baldwin <jhb@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org
Subject:   git: e2f8bae08fb9 - stable/15 - ext2fs: Use __sdt_used for variables only used by SDT probes
Message-ID:  <69ebaeaa.1e6ea.21205bac@gitrepo.freebsd.org>

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The branch stable/15 has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=e2f8bae08fb97985c94aa27b9e253346f32081b7

commit e2f8bae08fb97985c94aa27b9e253346f32081b7
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2026-02-09 16:27:44 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2026-04-24 15:33:29 +0000

    ext2fs: Use __sdt_used for variables only used by SDT probes
    
    Reviewed by:    imp, markj
    Differential Revision:  https://reviews.freebsd.org/D55164
    
    (cherry picked from commit 83e5b79c7c98a7f8c94a99b102bc8a90c195769a)
---
 sys/fs/ext2fs/ext2_extents.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/sys/fs/ext2fs/ext2_extents.c b/sys/fs/ext2fs/ext2_extents.c
index 146aa48f6743..0aa709a8e354 100644
--- a/sys/fs/ext2fs/ext2_extents.c
+++ b/sys/fs/ext2fs/ext2_extents.c
@@ -447,11 +447,7 @@ static int
 ext4_ext_check_header(struct inode *ip, struct ext4_extent_header *eh,
     int depth)
 {
-#ifdef KDTRACE_HOOKS
-	char *error_msg;
-#else
-	char *error_msg __unused;
-#endif
+	char *error_msg __sdt_used;
 
 	if (le16toh(eh->eh_magic) != EXT4_EXT_MAGIC) {
 		error_msg = "header: invalid magic";


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