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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 /drivers/net/ethernet/freescale
parentnet: bridge: fdb: eliminate extra port state tests from fast-path (diff)
downloadlinux-dev-0c65b2b90d13c1deaee6449304dd367c5d4eb8ae.tar.xz
linux-dev-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/ethernet/freescale')
-rw-r--r--drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c7
-rw-r--r--drivers/net/ethernet/freescale/enetc/enetc_pf.c4
-rw-r--r--drivers/net/ethernet/freescale/fec_main.c7
-rw-r--r--drivers/net/ethernet/freescale/fman/mac.c6
-rw-r--r--drivers/net/ethernet/freescale/gianfar.c7
5 files changed, 17 insertions, 14 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
index fea388d86f20..b713739f4804 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
@@ -44,10 +44,11 @@ static struct device_node *dpaa2_mac_get_node(u16 dpmac_id)
static int dpaa2_mac_get_if_mode(struct device_node *node,
struct dpmac_attr attr)
{
- int if_mode;
+ phy_interface_t if_mode;
+ int err;
- if_mode = of_get_phy_mode(node);
- if (if_mode >= 0)
+ err = of_get_phy_mode(node, &if_mode);
+ if (!err)
return if_mode;
if_mode = phy_mode(attr.eth_if);
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
index b73421c3e25b..7da79b816416 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -784,8 +784,8 @@ static int enetc_of_get_phy(struct enetc_ndev_priv *priv)
}
}
- priv->if_mode = of_get_phy_mode(np);
- if ((int)priv->if_mode < 0) {
+ err = of_get_phy_mode(np, &priv->if_mode);
+ if (err) {
dev_err(priv->dev, "missing phy type\n");
of_node_put(priv->phy_node);
if (of_phy_is_fixed_link(np))
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 7d37ba9f6819..d4d6c2e941f1 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -3393,6 +3393,7 @@ fec_probe(struct platform_device *pdev)
{
struct fec_enet_private *fep;
struct fec_platform_data *pdata;
+ phy_interface_t interface;
struct net_device *ndev;
int i, irq, ret = 0;
const struct of_device_id *of_id;
@@ -3465,15 +3466,15 @@ fec_probe(struct platform_device *pdev)
}
fep->phy_node = phy_node;
- ret = of_get_phy_mode(pdev->dev.of_node);
- if (ret < 0) {
+ ret = of_get_phy_mode(pdev->dev.of_node, &interface);
+ if (ret) {
pdata = dev_get_platdata(&pdev->dev);
if (pdata)
fep->phy_interface = pdata->phy;
else
fep->phy_interface = PHY_INTERFACE_MODE_MII;
} else {
- fep->phy_interface = ret;
+ fep->phy_interface = interface;
}
fep->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c
index 7ab8095db192..f0806ace1ae2 100644
--- a/drivers/net/ethernet/freescale/fman/mac.c
+++ b/drivers/net/ethernet/freescale/fman/mac.c
@@ -608,7 +608,7 @@ static int mac_probe(struct platform_device *_of_dev)
const u8 *mac_addr;
u32 val;
u8 fman_id;
- int phy_if;
+ phy_interface_t phy_if;
dev = &_of_dev->dev;
mac_node = dev->of_node;
@@ -776,8 +776,8 @@ static int mac_probe(struct platform_device *_of_dev)
}
/* Get the PHY connection type */
- phy_if = of_get_phy_mode(mac_node);
- if (phy_if < 0) {
+ err = of_get_phy_mode(mac_node, &phy_if);
+ if (err) {
dev_warn(dev,
"of_get_phy_mode() for %pOF failed. Defaulting to SGMII\n",
mac_node);
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 51ad86417cb1..72868a28b621 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -641,6 +641,7 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
const char *model;
const void *mac_addr;
int err = 0, i;
+ phy_interface_t interface;
struct net_device *dev = NULL;
struct gfar_private *priv = NULL;
struct device_node *np = ofdev->dev.of_node;
@@ -805,9 +806,9 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
* rgmii-id really needs to be specified. Other types can be
* detected by hardware
*/
- err = of_get_phy_mode(np);
- if (err >= 0)
- priv->interface = err;
+ err = of_get_phy_mode(np, &interface);
+ if (!err)
+ priv->interface = interface;
else
priv->interface = gfar_get_interface(dev);