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-rw-r--r--drivers/misc/mei/bus-fixup.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c
index 696918a6fa4f..fd6470f42671 100644
--- a/drivers/misc/mei/bus-fixup.c
+++ b/drivers/misc/mei/bus-fixup.c
@@ -33,6 +33,24 @@
#define MEI_UUID_ANY NULL_UUID_LE
/**
+ * number_of_connections - determine whether an client be on the bus
+ * according number of connections
+ * We support only clients:
+ * 1. with single connection
+ * 2. and fixed clients (max_number_of_connections == 0)
+ *
+ * @cldev: me clients device
+ */
+static void number_of_connections(struct mei_cl_device *cldev)
+{
+ dev_dbg(&cldev->dev, "running hook %s on %pUl\n",
+ __func__, mei_me_cl_uuid(cldev->me_cl));
+
+ if (cldev->me_cl->props.max_number_of_connections > 1)
+ cldev->do_match = 0;
+}
+
+/**
* blacklist - blacklist a client from the bus
*
* @cldev: me clients device
@@ -435,6 +453,7 @@ static struct mei_fixup {
const uuid_le uuid;
void (*hook)(struct mei_cl_device *cldev);
} mei_fixups[] = {
+ MEI_FIXUP(MEI_UUID_ANY, number_of_connections),
MEI_FIXUP(MEI_UUID_NFC_INFO, blacklist),
};