Clicking the logo brings the user back to the dashboard.

lms/templates/navigation/navbar-logo-header.html

@@ -4,6 +4,7 @@
 
 <%namespace name='static' file='../static_content.html'/>
 <%!
+from django.core.urlresolvers import reverse
 from django.utils.translation import ugettext as _
 from lms.djangoapps.ccx.overrides import get_current_ccx
 
@@ -13,7 +14,7 @@ from branding import api as branding_api
 
 <h1 class="hd logo-header">
   <div class="logo">
-    <a href="${marketing_link('ROOT')}">
+    <a href="${reverse('dashboard')}">
       <%block name="navigation_logo">
       <img src="${branding_api.get_logo_url(is_secure)}" alt="${_("{platform_name} Home Page").format(platform_name=static.get_platform_name())}"/>
       </%block>

themes/edx.org/lms/templates/header.html

@@ -56,7 +56,7 @@ site_status_msg = get_site_status_msg(course_id)
   <nav class="navbar navbar-expand-lg navbar-light" aria-label="${_('Main')}">
     <h1 class="hd logo-header">
       <div class="logo">
-        <a class="navbar-brand" href="${marketing_link('ROOT')}" itemprop="url">
+        <a class="navbar-brand" href="${reverse('dashboard')}" itemprop="url">
           <img src="${static.url("images/logo.png")}" alt="${_("{platform_name} Home Page").format(platform_name=static.get_platform_name())}" itemprop="logo" />
         </a>
       </div>