udev: remove ID_MM_PLATFORM_DRIVER_PROBE tag

This tag is completely redundant because users can whitelist the
platform TTY ports to use with the more generic ID_MM_DEVICE_PROCESS
tag, which is part of the explicit whitelist filter rule.

docs/reference/api/ModemManager-overview.xml

@@ -203,13 +203,7 @@ $ sudo udevadm trigger
           <listitem>
             <para><emphasis>MM_FILTER_RULE_TTY_PLATFORM_DRIVER</emphasis></para>
             <para>
-              If this filter is enabled, all platform TTY ports not explicitly flagged with the
+              If this filter is enabled, all platform TTY ports will be forbidden automatically.
-              <emphasis>ID_MM_PLATFORM_DRIVER_PROBE</emphasis> will be forbidden. If the flag
-              is found in a platform TTY port, port probing will be allowed directly.
-            </para>
-            <para>
-              Note that this filter is obsoleted by the more generic MM_FILTER_RULE_EXPLICIT_WHITELIST
-              filter. It is maintained for backwards compatibility with older ModemManager versions.
             </para>
           </listitem>
           <listitem>

docs/reference/api/ModemManager-sections.txt

@@ -156,7 +156,6 @@ ID_MM_DEVICE_IGNORE
 ID_MM_PORT_IGNORE
 ID_MM_TTY_BLACKLIST
 ID_MM_TTY_MANUAL_SCAN_ONLY
-ID_MM_PLATFORM_DRIVER_PROBE
 ID_MM_PORT_TYPE_AT_PPP
 ID_MM_PORT_TYPE_AT_PRIMARY
 ID_MM_PORT_TYPE_AT_SECONDARY

include/ModemManager-tags.h

@@ -127,22 +127,6 @@
  */
 #define ID_MM_TTY_MANUAL_SCAN_ONLY "ID_MM_TTY_MANUAL_SCAN_ONLY"
 
-/**
- * ID_MM_PLATFORM_DRIVER_PROBE:
- *
- * This is a port-specific tag applied to platform ports so that they
- * are probed automatically by the daemon. Platform ports that don't
- * have this tag will never probed. This tag is a bit redundant, as
- * the user could also use ID_MM_DEVICE_PROCESS for the same purpose.
- *
- * This tag is associated to the MM_FILTER_RULE_TTY_PLATFORM_DRIVER
- * rule, which is only meaningful when the daemon runs with the
- * DEFAULT filter policy type, as that is the only one that would
- * allow probing all ports not explicitly forbidden before the last
- * MM_FILTER_RULE_TTY_DEFAULT_ALLOWED rule.
- */
-#define ID_MM_PLATFORM_DRIVER_PROBE "ID_MM_PLATFORM_DRIVER_PROBE"
-
 /**
  * ID_MM_PORT_TYPE_AT_PRIMARY:
  *

src/mm-filter.c

@@ -121,13 +121,9 @@ mm_filter_port (MMFilter        *self,
              !g_strcmp0 (physdev_subsystem, "pci") ||
              !g_strcmp0 (physdev_subsystem, "pnp") ||
              !g_strcmp0 (physdev_subsystem, "sdio"))) {
-            if (!mm_kernel_device_get_global_property_as_boolean (port, ID_MM_PLATFORM_DRIVER_PROBE)) {
+            mm_dbg ("[filter] (%s/%s): port filtered: tty platform driver", subsystem, name);
-                mm_dbg ("[filter] (%s/%s): port filtered: port's parent platform driver is not whitelisted", subsystem, name);
             return FALSE;
         }
-            mm_dbg ("[filter] (%s/%s): port allowed: port's parent platform driver is whitelisted", subsystem, name);
-            return TRUE;
-        }
 
         /* Default allowed? */
         if (self->priv->enabled_rules & MM_FILTER_RULE_TTY_DEFAULT_ALLOWED) {