libsmbconf: add a comment.

Michael

diff --git a/source/lib/smbconf/smbconf_reg.c b/source/lib/smbconf/smbconf_reg.c
index aaa03e21e8584e63f86159e311e56fa16a6c79e2..98613efc2a0ec15cf62e7f64b360acd7263714d5 100644 (file)
--- a/source/lib/smbconf/smbconf_reg.c
+++ b/source/lib/smbconf/smbconf_reg.c
@@ -30,6 +30,9 @@ struct reg_private_data {
  *
  **********************************************************************/
 
+/**
+ * a convenience helper to cast the private data structure
+ */
 static struct reg_private_data *rpd(struct smbconf_ctx *ctx)
 {
        return (struct reg_private_data *)(ctx->data);