address review feedback

Author: James DeFelice

csi.proto

@@ -187,7 +187,8 @@ message VolumeCapability {
     // The mount options that can be used for the volume. This field is
     // OPTIONAL. `mount_flags` MAY contain sensitive information.
     // Therefore, the CO and the Plugin MUST NOT leak this information
-    // to untrusted entities.
+    // to untrusted entities. The total size of this repeated field
+    // SHALL NOT exceed 4 KiB.
     repeated string mount_flags = 2;    
   }
 

lib/go/csi/csi.pb.go

@@ -299,13 +299,13 @@ The error code `OPERATION_PENDING_FOR_VOLUME` may be returned by the plugin in t
 
 CSI defines general size limits for fields of various types (see table below).
 The general size limit for a particular field may be overridden by specifying a different size limit in said field's description.
-The general size limits apply for messages generated by both COs and plugins.
+Unless otherwise specified, fields SHALL NOT exceed the limits documented here.
+These limits apply for messages generated by both COs and plugins.
 
 | Size       | Field Type          |
 |------------|---------------------|
 | 128 bytes  | string              |
 | 4 KiB      | map<string, string> |
-| 4 KiB      | repeated string     |
 
 ### Identity Service RPC
 
@@ -494,7 +494,8 @@ message VolumeCapability {
     // The mount options that can be used for the volume. This field is
     // OPTIONAL. `mount_flags` MAY contain sensitive information.
     // Therefore, the CO and the Plugin MUST NOT leak this information
-    // to untrusted entities.
+    // to untrusted entities. The total size of this repeated field
+    // SHALL NOT exceed 4 KiB.
     repeated string mount_flags = 2;    
   }