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authorAndrew Lunn <andrew@lunn.ch>2019-11-04 02:40:33 +0100
committerDavid S. Miller <davem@davemloft.net>2019-11-04 11:21:25 -0800
commit0c65b2b90d13c1deaee6449304dd367c5d4eb8ae (patch)
treecd0eaef5cd95d586edba8e1675ec1dfaf1f540da /net/dsa
parent5d1fcaf35d74b4188d238e46f0be37c14a01f169 (diff)
downloadlinux-0c65b2b90d13c1deaee6449304dd367c5d4eb8ae.tar.bz2
net: of_get_phy_mode: Change API to solve int/unit warnings
Before this change of_get_phy_mode() returned an enum, phy_interface_t. On error, -ENODEV etc, is returned. If the result of the function is stored in a variable of type phy_interface_t, and the compiler has decided to represent this as an unsigned int, comparision with -ENODEV etc, is a signed vs unsigned comparision. Fix this problem by changing the API. Make the function return an error, or 0 on success, and pass a pointer, of type phy_interface_t, where the phy mode should be stored. v2: Return with *interface set to PHY_INTERFACE_MODE_NA on error. Add error checks to all users of of_get_phy_mode() Fixup a few reverse christmas tree errors Fixup a few slightly malformed reverse christmas trees v3: Fix 0-day reported errors. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/port.c13
-rw-r--r--net/dsa/slave.c7
2 files changed, 11 insertions, 9 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 9b54e5a76297..6e93c36bf0c0 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -561,7 +561,7 @@ static int dsa_port_fixed_link_register_of(struct dsa_port *dp)
struct dsa_switch *ds = dp->ds;
struct phy_device *phydev;
int port = dp->index;
- int mode;
+ phy_interface_t mode;
int err;
err = of_phy_register_fixed_link(dn);
@@ -574,8 +574,8 @@ static int dsa_port_fixed_link_register_of(struct dsa_port *dp)
phydev = of_phy_find_device(dn);
- mode = of_get_phy_mode(dn);
- if (mode < 0)
+ err = of_get_phy_mode(dn, &mode);
+ if (err)
mode = PHY_INTERFACE_MODE_NA;
phydev->interface = mode;
@@ -593,10 +593,11 @@ static int dsa_port_phylink_register(struct dsa_port *dp)
{
struct dsa_switch *ds = dp->ds;
struct device_node *port_dn = dp->dn;
- int mode, err;
+ phy_interface_t mode;
+ int err;
- mode = of_get_phy_mode(port_dn);
- if (mode < 0)
+ err = of_get_phy_mode(port_dn, &mode);
+ if (err)
mode = PHY_INTERFACE_MODE_NA;
dp->pl_config.dev = ds->dev;
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index d18761649754..78ffc87dc25e 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1313,11 +1313,12 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev)
struct dsa_port *dp = dsa_slave_to_port(slave_dev);
struct device_node *port_dn = dp->dn;
struct dsa_switch *ds = dp->ds;
+ phy_interface_t mode;
u32 phy_flags = 0;
- int mode, ret;
+ int ret;
- mode = of_get_phy_mode(port_dn);
- if (mode < 0)
+ ret = of_get_phy_mode(port_dn, &mode);
+ if (ret)
mode = PHY_INTERFACE_MODE_NA;
dp->pl_config.dev = &slave_dev->dev;