lsm: group lsm_order_parse() with the other lsm_order_*() functions

Move the lsm_order_parse() function near the other lsm_order_*()
functions to improve readability.

No code changes.

Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: John Johansen <john.johhansen@canonical.com>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

Author: pcmoore

security/lsm_init.c

@@ -169,6 +169,76 @@ static void __init lsm_order_append(struct lsm_info *lsm, const char *src)
 	lsm_pr_dbg("enabling LSM %s:%s\n", src, lsm->id->name);
 }
 
+/**
+ * lsm_order_parse - Parse the comma delimited LSM list
+ * @list: LSM list
+ * @src: source of the list
+ */
+static void __init lsm_order_parse(const char *list, const char *src)
+{
+	struct lsm_info *lsm;
+	char *sep, *name, *next;
+
+	/* Handle any Legacy LSM exclusions if one was specified. */
+	if (lsm_order_legacy) {
+		/*
+		 * To match the original "security=" behavior, this explicitly
+		 * does NOT fallback to another Legacy Major if the selected
+		 * one was separately disabled: disable all non-matching
+		 * Legacy Major LSMs.
+		 */
+		lsm_for_each_raw(lsm) {
+			if ((lsm->flags & LSM_FLAG_LEGACY_MAJOR) &&
+			     strcmp(lsm->id->name, lsm_order_legacy)) {
+				lsm_enabled_set(lsm, false);
+				lsm_pr_dbg("skip legacy LSM conflict %s:%s\n",
+					   src, lsm->id->name);
+			}
+		}
+	}
+
+	/* LSM_ORDER_FIRST */
+	lsm_for_each_raw(lsm) {
+		if (lsm->order == LSM_ORDER_FIRST)
+			lsm_order_append(lsm, "first");
+	}
+
+	/* Normal or "mutable" LSMs */
+	sep = kstrdup(list, GFP_KERNEL);
+	next = sep;
+	/* Walk the list, looking for matching LSMs. */
+	while ((name = strsep(&next, ",")) != NULL) {
+		lsm_for_each_raw(lsm) {
+			if (!strcmp(lsm->id->name, name) &&
+			    lsm->order == LSM_ORDER_MUTABLE)
+				lsm_order_append(lsm, src);
+		}
+	}
+	kfree(sep);
+
+	/* Legacy LSM if specified. */
+	if (lsm_order_legacy) {
+		lsm_for_each_raw(lsm) {
+			if (!strcmp(lsm->id->name, lsm_order_legacy))
+				lsm_order_append(lsm, src);
+		}
+	}
+
+	/* LSM_ORDER_LAST */
+	lsm_for_each_raw(lsm) {
+		if (lsm->order == LSM_ORDER_LAST)
+			lsm_order_append(lsm, "last");
+	}
+
+	/* Disable all LSMs not previously enabled. */
+	lsm_for_each_raw(lsm) {
+		if (lsm_order_exists(lsm))
+			continue;
+		lsm_enabled_set(lsm, false);
+		lsm_pr_dbg("skip disabled LSM %s:%s\n", src, lsm->id->name);
+	}
+}
+
 /**
  * lsm_blob_size_update - Update the LSM blob size and offset information
  * @sz_req: the requested additional blob size
@@ -241,76 +311,6 @@ static void __init lsm_init_single(struct lsm_info *lsm)
 	WARN(ret, "%s failed to initialize: %d\n", lsm->id->name, ret);
 }
 
-/**
- * lsm_order_parse - Parse the comma delimited LSM list
- * @list: LSM list
- * @src: source of the list
- */
-static void __init lsm_order_parse(const char *list, const char *src)
-{
-	struct lsm_info *lsm;
-	char *sep, *name, *next;
-
-	/* Handle any Legacy LSM exclusions if one was specified. */
-	if (lsm_order_legacy) {
-		/*
-		 * To match the original "security=" behavior, this explicitly
-		 * does NOT fallback to another Legacy Major if the selected
-		 * one was separately disabled: disable all non-matching
-		 * Legacy Major LSMs.
-		 */
-		lsm_for_each_raw(lsm) {
-			if ((lsm->flags & LSM_FLAG_LEGACY_MAJOR) &&
-			     strcmp(lsm->id->name, lsm_order_legacy)) {
-				lsm_enabled_set(lsm, false);
-				lsm_pr_dbg("skip legacy LSM conflict %s:%s\n",
-					   src, lsm->id->name);
-			}
-		}
-	}
-
-	/* LSM_ORDER_FIRST */
-	lsm_for_each_raw(lsm) {
-		if (lsm->order == LSM_ORDER_FIRST)
-			lsm_order_append(lsm, "first");
-	}
-
-	/* Normal or "mutable" LSMs */
-	sep = kstrdup(list, GFP_KERNEL);
-	next = sep;
-	/* Walk the list, looking for matching LSMs. */
-	while ((name = strsep(&next, ",")) != NULL) {
-		lsm_for_each_raw(lsm) {
-			if (!strcmp(lsm->id->name, name) &&
-			    lsm->order == LSM_ORDER_MUTABLE)
-				lsm_order_append(lsm, src);
-		}
-	}
-	kfree(sep);
-
-	/* Legacy LSM if specified. */
-	if (lsm_order_legacy) {
-		lsm_for_each_raw(lsm) {
-			if (!strcmp(lsm->id->name, lsm_order_legacy))
-				lsm_order_append(lsm, src);
-		}
-	}
-
-	/* LSM_ORDER_LAST */
-	lsm_for_each_raw(lsm) {
-		if (lsm->order == LSM_ORDER_LAST)
-			lsm_order_append(lsm, "last");
-	}
-
-	/* Disable all LSMs not previously enabled. */
-	lsm_for_each_raw(lsm) {
-		if (lsm_order_exists(lsm))
-			continue;
-		lsm_enabled_set(lsm, false);
-		lsm_pr_dbg("skip disabled LSM %s:%s\n", src, lsm->id->name);
-	}
-}
-
 /**
  * lsm_static_call_init - Initialize a LSM's static calls
  * @hl: LSM hook list