[LTP] [PATCH v1 1/3] fsetxattr02: Adapt test for kernel 7.0+ socket xattr support

[Jan Polensky]

Starting with kernel 7.0.0, sockets support extended attributes in the
user.* namespace. This behavior was enabled by dc0876b9846d ("xattr: support
extended attributes on sockets"), which permits user.* xattrs on S_IFSOCK
inodes (previously rejected with -EPERM).

Adapts the test to expect success (exp_err = 0) instead of EPERM when
testing fsetxattr(2) on sockets with kernel 7.0+.

Signed-off-by: Jan Polensky <japo@linux.ibm.com>
---
 testcases/kernel/syscalls/fsetxattr/fsetxattr02.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/testcases/kernel/syscalls/fsetxattr/fsetxattr02.c b/testcases/kernel/syscalls/fsetxattr/fsetxattr02.c
index 18490a865871..ede86b218ee6 100644
--- a/testcases/kernel/syscalls/fsetxattr/fsetxattr02.c
+++ b/testcases/kernel/syscalls/fsetxattr/fsetxattr02.c
@@ -158,6 +158,10 @@ static void verify_fsetxattr(unsigned int i)
 	if (TST_RET == -1 && TST_ERR == EOPNOTSUPP)
 		tst_brk(TCONF, "fsetxattr(2) not supported");
 
+	/* consider newer kernels */
+	if ((tst_kvercmp(7, 0, 0) >= 0) && (strncmp(tc[i].fname, SOCK, strlen(SOCK)) == 0))
+		tc[i].exp_err = 0;
+
 	/* success */
 
 	if (!tc[i].exp_err) {
-- 
2.53.0