[PATCH -next] net: dsa: mv88e6xxx: fix non static symbol warnings

[Wei Yongjun]

From: Wei Yongjun <weiyongj...@huawei.com>

Fixes the following sparse warnings:

drivers/net/dsa/mv88e6xxx/chip.c:219:5: warning:
 symbol 'mv88e6xxx_port_read' was not declared. Should it be static?
drivers/net/dsa/mv88e6xxx/chip.c:227:5: warning:
 symbol 'mv88e6xxx_port_write' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 25bd3fa..6f28f19 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -216,16 +216,16 @@ int mv88e6xxx_write(struct mv88e6xxx_chip *chip, int 
addr, int reg, u16 val)
        return 0;
 }
 
-int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg,
-                       u16 *val)
+static int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg,
+                              u16 *val)
 {
        int addr = chip->info->port_base_addr + port;
 
        return mv88e6xxx_read(chip, addr, reg, val);
 }
 
-int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
-                        u16 val)
+static int mv88e6xxx_port_write(struct mv88e6xxx_chip *chip, int port, int reg,
+                               u16 val)
 {
        int addr = chip->info->port_base_addr + port;