target/linux/generic/backport-5.4/756-v5.8-net-dsa-rtl8366-Pass-GENMASK-signed-bits.patch

   1 From 733993f502f254912b1415e13f73651d9f2e74ef Mon Sep 17 00:00:00 2001
   2 From: Andrew Lunn <andrew@lunn.ch>
   3 Date: Sun, 5 Jul 2020 22:42:27 +0200
   4 Subject: [PATCH 1/5] net: dsa: rtl8366: Pass GENMASK() signed bits
   5
   6 Oddly, GENMASK() requires signed bit numbers, so that it can compare
   7 them for < 0. If passed an unsigned type, we get warnings about the
   8 test never being true.
   9
  10 Signed-off-by: Andrew Lunn <andrew@lunn.ch>
  11 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
  12 Signed-off-by: David S. Miller <davem@davemloft.net>
  13 ---
  14  drivers/net/dsa/rtl8366.c | 2 +-
  15  1 file changed, 1 insertion(+), 1 deletion(-)
  16
  17 --- a/drivers/net/dsa/rtl8366.c
  18 +++ b/drivers/net/dsa/rtl8366.c
  19 @@ -285,7 +285,7 @@ int rtl8366_init_vlan(struct realtek_smi
  20                         /* For the CPU port, make all ports members of this
  21                          * VLAN.
  22                          */
  23 -                       mask = GENMASK(smi->num_ports - 1, 0);
  24 +                       mask = GENMASK((int)smi->num_ports - 1, 0);
  25                 else
  26                         /* For all other ports, enable itself plus the
  27                          * CPU port.