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Message-ID: <c696926d-748f-1969-f684-727d495c4a12@huawei.com>
Date: Thu, 29 Aug 2024 11:11:10 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: Jonathan Cameron <Jonathan.Cameron@...wei.com>
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Subject: Re: [PATCH net-next v2 08/13] net: mdio: mux-mmioreg: Simplified with
dev_err_probe()
On 2024/8/28 20:48, Jonathan Cameron wrote:
> On Wed, 28 Aug 2024 11:23:38 +0800
> Jinjie Ruan <ruanjinjie@...wei.com> wrote:
>
>> Use the dev_err_probe() helper to simplify code.
>>
>> Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
> Ah. I should have read next patch. Sorry!
>
> Might be worth breaking from rule of aligning parameters
> after brackets to keep the longest line lengths down.
>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
>
>> ---
>> v2:
>> - Split into 2 patches.
>> ---
>> drivers/net/mdio/mdio-mux-mmioreg.c | 45 ++++++++++++-----------------
>> 1 file changed, 19 insertions(+), 26 deletions(-)
>>
>> diff --git a/drivers/net/mdio/mdio-mux-mmioreg.c b/drivers/net/mdio/mdio-mux-mmioreg.c
>> index 4d87e61fec7b..08c484ccdcbe 100644
>> --- a/drivers/net/mdio/mdio-mux-mmioreg.c
>> +++ b/drivers/net/mdio/mdio-mux-mmioreg.c
>> @@ -109,30 +109,26 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
>> return -ENOMEM;
>>
>> ret = of_address_to_resource(np, 0, &res);
>> - if (ret) {
>> - dev_err(&pdev->dev, "could not obtain memory map for node %pOF\n",
>> - np);
>> - return ret;
>> - }
>> + if (ret)
>> + return dev_err_probe(&pdev->dev, ret,
>> + "could not obtain memory map for node %pOF\n", np);
>> s->phys = res.start;
>>
>> s->iosize = resource_size(&res);
>> if (s->iosize != sizeof(uint8_t) &&
>> s->iosize != sizeof(uint16_t) &&
>> s->iosize != sizeof(uint32_t)) {
>> - dev_err(&pdev->dev, "only 8/16/32-bit registers are supported\n");
>> - return -EINVAL;
>> + return dev_err_probe(&pdev->dev, -EINVAL,
>> + "only 8/16/32-bit registers are supported\n");
>> }
>>
>> iprop = of_get_property(np, "mux-mask", &len);
>> - if (!iprop || len != sizeof(uint32_t)) {
>> - dev_err(&pdev->dev, "missing or invalid mux-mask property\n");
>> - return -ENODEV;
>> - }
>> - if (be32_to_cpup(iprop) >= BIT(s->iosize * 8)) {
>> - dev_err(&pdev->dev, "only 8/16/32-bit registers are supported\n");
>> - return -EINVAL;
>> - }
>> + if (!iprop || len != sizeof(uint32_t))
>> + return dev_err_probe(&pdev->dev, -ENODEV,
>> + "missing or invalid mux-mask property\n");
>> + if (be32_to_cpup(iprop) >= BIT(s->iosize * 8))
>> + return dev_err_probe(&pdev->dev, -EINVAL,
>> + "only 8/16/32-bit registers are supported\n");
>> s->mask = be32_to_cpup(iprop);
>>
>> /*
>> @@ -142,17 +138,14 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
>> for_each_available_child_of_node_scoped(np, np2) {
>> u64 reg;
>>
>> - if (of_property_read_reg(np2, 0, ®, NULL)) {
>> - dev_err(&pdev->dev, "mdio-mux child node %pOF is "
>> - "missing a 'reg' property\n", np2);
>> - return -ENODEV;
>> - }
>> - if ((u32)reg & ~s->mask) {
>> - dev_err(&pdev->dev, "mdio-mux child node %pOF has "
>> - "a 'reg' value with unmasked bits\n",
>> - np2);
>> - return -ENODEV;
>> - }
>> + if (of_property_read_reg(np2, 0, ®, NULL))
>> + return dev_err_probe(&pdev->dev, -ENODEV,
>> + "mdio-mux child node %pOF is missing a 'reg' property\n",
>> + np2);
>> + if ((u32)reg & ~s->mask)
>> + return dev_err_probe(&pdev->dev, -ENODEV,
>> + "mdio-mux child node %pOF has a 'reg' value with unmasked bits\n",
> I'd align these super long ones as.
> "mdio-mux child node %pOF has a 'reg' value with unmasked bits\n",
> It is ugly but then so are > 100 char lines.
It seems that this kind string > 100 char is fine for patch check script.
>> + np2);
>> }
>>
>> ret = mdio_mux_init(&pdev->dev, pdev->dev.of_node,
>
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