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Re: [PATCH] ath10k: add configurable debugging.

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Adrian Chadd <adrian@xxxxxxxxxxx> writes:

> This adds a few configurable debugging options:
>
> * driver debugging and tracing is now configurable per device
> * driver debugging and tracing is now configurable at runtime
> * the debugging / tracing is not run at all (besides a mask check)
>   unless the specific debugging bitmap field is configured.
>
> Signed-off-by: Adrian Chadd <adrian@xxxxxxxxxxx>

[...]

> --- a/drivers/net/wireless/ath/ath10k/core.c
> +++ b/drivers/net/wireless/ath/ath10k/core.c
> @@ -2444,6 +2444,8 @@ struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
>  	ar->hw_rev = hw_rev;
>  	ar->hif.ops = hif_ops;
>  	ar->hif.bus = bus;
> +	ar->debug_mask = ath10k_debug_mask;
> +	ar->trace_debug_mask = ath10k_debug_mask;

Until now tracing has been always enabled, irrespective what debug_mask
has contained. Now you are changing that and by default log messages are
not delivered through tracing until user enables them. So I think to
keep the old behaviour trace_debug_mask should be ATH10K_DBG_ANY
(0xffffffff) by default and the user can modify the mask per device via
the debugfs file.

But is it really needed to be able to filter trace messages? debug_mask
I understand, but not sure about trace_debug_mask.

-- 
Kalle Valo



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