[PATCH v3 06/11] 9p: darwin: Compatibility defn for XATTR_SIZE_MAX

[Will Cohen <wwcohen@gmail.com>]

From: Keno Fischer <keno@juliacomputing.com>

Signed-off-by: Keno Fischer <keno@juliacomputing.com>
Signed-off-by: Michael Roitzsch <reactorcontrol@icloud.com>
[Will Cohen: - Adjust coding style
             - Lower XATTR_SIZE_MAX to 64k]
Signed-off-by: Will Cohen <wwcohen@gmail.com>
---
 hw/9pfs/9p.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index 9b0c057e9c..611ac14c4c 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -3943,6 +3943,13 @@ out_nofid:
     v9fs_string_free(&name);
 }
 
+#if defined(CONFIG_DARWIN) && !defined(XATTR_SIZE_MAX)
+/*
+ * Darwin doesn't seem to define a maximum xattr size in its user
+ * space header, so manually configure it as 64k.
+ */
+#define XATTR_SIZE_MAX 65536
+#endif
 static void coroutine_fn v9fs_xattrcreate(void *opaque)
 {
     int flags, rflags = 0;
-- 
2.34.1