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Message-ID: <87frzzsfoi.fsf@kernel.org>
Date: Mon, 18 Dec 2023 17:17:49 +0200
From: Kalle Valo <kvalo@...nel.org>
To: Mario Limonciello <mario.limonciello@....com>
Cc: Johannes Berg <johannes@...solutions.net>,  "David S . Miller"
 <davem@...emloft.net>,  Eric Dumazet <edumazet@...gle.com>,  Jakub
 Kicinski <kuba@...nel.org>,  Paolo Abeni <pabeni@...hat.com>,  "open
 list:MAC80211" <linux-wireless@...r.kernel.org>,  "open list:NETWORKING
 [GENERAL]" <netdev@...r.kernel.org>,  open list
 <linux-kernel@...r.kernel.org>,  Jun Ma <Jun.ma2@....com>
Subject: Re: [PATCH] wifi: mac80211: Use subsystem appropriate debug call

Mario Limonciello <mario.limonciello@....com> 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@....com>
> Reported-by: kvalo@...nel.org
> Closes:
> https://lore.kernel.org/amd-gfx/8bd60010-7534-4c22-9337-c4219946d8d6@amd.com/T/#mfe2f29372c45130d27745912faf33d9f7ce50118
> Fixes: d34be4310cbe ("wifi: mac80211: Add support for WBRF features")
> Signed-off-by: Mario Limonciello <mario.limonciello@....com>
> ---
>  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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