net: dsa: make switch index unsigned

Define the DSA switch index as an unsigned int, because it will never be
less than 0.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 50e276d..fa1c21a 100644 (file)
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -209,7 +209,7 @@ struct dsa_switch {
         * Parent switch tree, and switch index.
         */
        struct dsa_switch_tree  *dst;
-       int                     index;
+       unsigned int            index;
 
        /* Listener for switch fabric events */
        struct notifier_block   nb;