Hi Christian,
On Tue, 2015-03-03 at 17:28 +0100, Christian Ruppert wrote:
> On 2015-03-03 16:27, Alexey Brodkin wrote:
> > There's no point in printing error message if platform_get_irq()
> > returns -EPROBE_DEFER because probe deferring subsystem already outputs
> > message in bootlog like this:
> > --->8---
> > platform e001d000.i2c: Driver i2c_designware requests probe deferral
> > --->8---
> >
> > Moreover in case of probe deferral following message may mislead user:
> > --->8---
> > i2c_designware e001d000.i2c: no irq resource?
> > --->8---
> > even though it's expected that platform_get_irq() may return
> > -EPROBE_DEFER.
> >
> > irq = platform_get_irq(pdev, 0);
> > if (irq < 0) {
> > - dev_err(&pdev->dev, "no irq resource?\n");
> > + if (irq != -EPROBE_DEFER)
> > + dev_err(&pdev->dev, "no irq resource?\n");
>
> Presented like this I wonder if this merits being a dev_err at all.
> Wouldn't dev_dbg be more adequate? This might remove the need for the
> condition and also avoid bothering everyone if something in the platform
> device structures or device tree is not right.
>
> > return irq; /* -ENXIO */
> > }
We've just had similar discussion related to DW APB UART with Andy here
https://lkml.org/lkml/2015/3/3/412
So yes probably we may safely remove error message from here completely.
-Alexey
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