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Re: [PATCH] wifi: mac80211: Use subsystem appropriate debug call

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Mario Limonciello <mario.limonciello@xxxxxxx> writes:

> mac80211 doesn't use dev_dbg() but instead various macros from
> net/mac80211/debug.h. Adjust wbrf code to use wiphy_dbg() instead.
>
> Cc: Jun Ma <Jun.ma2@xxxxxxx>
> Reported-by: kvalo@xxxxxxxxxx
> Closes:
> https://lore.kernel.org/amd-gfx/8bd60010-7534-4c22-9337-c4219946d8d6@xxxxxxx/T/#mfe2f29372c45130d27745912faf33d9f7ce50118
> Fixes: d34be4310cbe ("wifi: mac80211: Add support for WBRF features")
> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> ---
>  net/mac80211/wbrf.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/net/mac80211/wbrf.c b/net/mac80211/wbrf.c
> index a05c5b971789..12c23e14f884 100644
> --- a/net/mac80211/wbrf.c
> +++ b/net/mac80211/wbrf.c
> @@ -23,8 +23,8 @@ void ieee80211_check_wbrf_support(struct ieee80211_local *local)
>  		return;
>  
>  	local->wbrf_supported = acpi_amd_wbrf_supported_producer(dev);
> -	dev_dbg(dev, "WBRF is %s supported\n",
> -		local->wbrf_supported ? "" : "not");
> +	wiphy_dbg(wiphy, "WBRF is %s supported\n",
> +		  local->wbrf_supported ? "" : "not");
>  }

This won't work, I still see the debug message:

[  333.765867] ieee80211 phy0: WBRF is not supported

The issue seems to be that mac80211 defines DEBUG in
net/mac80211/Makefile:

ccflags-y += -DDEBUG

That -DDEBUG should be cleaned up, but I think separately. It's just
that I cannot come up with any good proposal, all the macros in
net/mac80211/debug.h require sdata and we don't have that in this stage.
Any ideas?

-- 
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https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches




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