[PATCH v2 10/21] ath10k: support logging ath10k_info as KERN_DEBUG

Ben Greear greearb at candelatech.com
Thu Sep 15 08:11:33 PDT 2016

On 09/15/2016 07:12 AM, Valo, Kalle wrote:
> Ben Greear <greearb at candelatech.com> writes:
>> On 09/14/2016 07:19 AM, Valo, Kalle wrote:
>>> greearb at candelatech.com writes:
>>>> From: Ben Greear <greearb at candelatech.com>
>>>> Helps keep messages off of (serial) console when
>>>> that is desired.
>>>> Signed-off-by: Ben Greear <greearb at candelatech.com>
>>> Isn't /proc/sys/kernel/print exactly for this purpose? At least I recall
>>> using it.
>> I just wanted to hide some ath10k logs from the console, not all
>> system logs. I don't think that /proc/sys/kernel/print has any
>> granularity?
> It should be based on KERN_ log levels. I don't know what your kernel
> does, but ath10k should be printing only very few messages with level
> KERN_INFO or above, all of of the debug messages. So you should be
> easily able to filter out all ath10k debug messages as they are sent
> with KERN_DEBUG.

I originally added this when I was testing .11r associating timing.  Just
having a few lines of ath10k printk on the serial console added several 10s
of milliseconds to the time it took to associate, and that was throwing off my
results.  I still wanted to see the messges in 'dmesg', just not on the console.

I did not want to hide other WARN level logs from the console, just the ath10k


Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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