diff options
| author | Zijun Hu <quic_zijuhu@quicinc.com> | 2024-10-03 10:27:27 -0700 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-10-08 09:34:06 +0200 |
| commit | 138d21b68b71af6d9ad114774008b36a149c2c80 (patch) | |
| tree | 864d5917833b810fc82c5327a96ee4ab80b907c7 | |
| parent | f95b4725e796b12e5f347a0d161e1d3843142aa8 (diff) | |
net: qcom/emac: Find sgmii_ops by device_for_each_child()
To prepare for constifying the following old driver core API:
struct device *device_find_child(struct device *dev, void *data,
int (*match)(struct device *dev, void *data));
to new:
struct device *device_find_child(struct device *dev, const void *data,
int (*match)(struct device *dev, const void *data));
The new API does not allow its match function (*match)() to modify
caller's match data @*data, but emac_sgmii_acpi_match(), as the old
API's match function, indeed modifies relevant match data, so it is
not suitable for the new API any more, solved by implementing the same
finding sgmii_ops function by correcting the function and using it
as parameter of device_for_each_child() instead of device_find_child().
By the way, this commit does not change any existing logic.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://patch.msgid.link/20241003-qcom_emac_fix-v6-1-0658e3792ca4@quicinc.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | drivers/net/ethernet/qualcomm/emac/emac-sgmii.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c b/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c index e4bc18009d08..a508ebc4b206 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c +++ b/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c @@ -293,6 +293,11 @@ static struct sgmii_ops qdf2400_ops = { }; #endif +struct emac_match_data { + struct sgmii_ops **sgmii_ops; + struct device *target_device; +}; + static int emac_sgmii_acpi_match(struct device *dev, void *data) { #ifdef CONFIG_ACPI @@ -303,7 +308,7 @@ static int emac_sgmii_acpi_match(struct device *dev, void *data) {} }; const struct acpi_device_id *id = acpi_match_device(match_table, dev); - struct sgmii_ops **ops = data; + struct emac_match_data *match_data = data; if (id) { acpi_handle handle = ACPI_HANDLE(dev); @@ -324,10 +329,12 @@ static int emac_sgmii_acpi_match(struct device *dev, void *data) switch (hrv) { case 1: - *ops = &qdf2432_ops; + *match_data->sgmii_ops = &qdf2432_ops; + match_data->target_device = dev; return 1; case 2: - *ops = &qdf2400_ops; + *match_data->sgmii_ops = &qdf2400_ops; + match_data->target_device = dev; return 1; } } @@ -356,16 +363,21 @@ int emac_sgmii_config(struct platform_device *pdev, struct emac_adapter *adpt) int ret; if (has_acpi_companion(&pdev->dev)) { + struct emac_match_data match_data = { + .sgmii_ops = &phy->sgmii_ops, + .target_device = NULL, + }; struct device *dev; - dev = device_find_child(&pdev->dev, &phy->sgmii_ops, - emac_sgmii_acpi_match); + device_for_each_child(&pdev->dev, &match_data, emac_sgmii_acpi_match); + dev = match_data.target_device; if (!dev) { dev_warn(&pdev->dev, "cannot find internal phy node\n"); return 0; } + get_device(dev); sgmii_pdev = to_platform_device(dev); } else { const struct of_device_id *match; |