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| author | Andrew Lunn <andrew@lunn.ch> | 2019-11-04 02:40:33 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-11-04 11:21:25 -0800 |
| commit | 0c65b2b90d13c1deaee6449304dd367c5d4eb8ae (patch) | |
| tree | cd0eaef5cd95d586edba8e1675ec1dfaf1f540da /drivers/net/dsa/qca8k.c | |
| parent | 5d1fcaf35d74b4188d238e46f0be37c14a01f169 (diff) | |
| download | lwn-0c65b2b90d13c1deaee6449304dd367c5d4eb8ae.tar.gz lwn-0c65b2b90d13c1deaee6449304dd367c5d4eb8ae.zip | |
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 'drivers/net/dsa/qca8k.c')
| -rw-r--r-- | drivers/net/dsa/qca8k.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c index 36c6ed98f8e7..e548289df31e 100644 --- a/drivers/net/dsa/qca8k.c +++ b/drivers/net/dsa/qca8k.c @@ -639,7 +639,8 @@ static int qca8k_setup(struct dsa_switch *ds) { struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv; - int ret, i, phy_mode = -1; + phy_interface_t phy_mode = PHY_INTERFACE_MODE_NA; + int ret, i; u32 mask; /* Make sure that port 0 is the cpu port */ @@ -661,10 +662,10 @@ qca8k_setup(struct dsa_switch *ds) return ret; /* Initialize CPU port pad mode (xMII type, delays...) */ - phy_mode = of_get_phy_mode(dsa_to_port(ds, QCA8K_CPU_PORT)->dn); - if (phy_mode < 0) { + ret = of_get_phy_mode(dsa_to_port(ds, QCA8K_CPU_PORT)->dn, &phy_mode); + if (ret) { pr_err("Can't find phy-mode for master device\n"); - return phy_mode; + return ret; } ret = qca8k_set_pad_ctrl(priv, QCA8K_CPU_PORT, phy_mode); if (ret < 0) |