apparmor: change op from int to const char *

Having ops be an integer that is an index into an op name table is
awkward and brittle. Every op change requires an edit for both the
op constant and a string in the table. Instead switch to using const
strings directly, eliminating the need for the table that needs to
be kept in sync.

Signed-off-by: John Johansen <john.johansen@canonical.com>
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index af36af8..999a43e 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -85,7 +85,7 @@ static int mangle_name(const char *name, char *target)
  * Returns: kernel buffer containing copy of user buffer data or an
  *          ERR_PTR on failure.
  */
-static struct aa_loaddata *aa_simple_write_to_buffer(int op,
+static struct aa_loaddata *aa_simple_write_to_buffer(const char *op,
 						     const char __user *userbuf,
 						     size_t alloc_size,
 						     size_t copy_size,
@@ -122,7 +122,7 @@ static ssize_t policy_update(int binop, const char __user *buf, size_t size,
 	ssize_t error;
 	struct aa_loaddata *data;
 	struct aa_profile *profile = aa_current_profile();
-	int op = binop == PROF_ADD ? OP_PROF_LOAD : OP_PROF_REPL;
+	const char *op = binop == PROF_ADD ? OP_PROF_LOAD : OP_PROF_REPL;
 	/* high level check about policy management - fine grained in
 	 * below after unpack
 	 */