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From: Kalle Valo <kvalo@kernel.org>
To: Daniel Golle <daniel@makrotopia.org>
Cc: Jakub Kicinski <kuba@kernel.org>,  "David S. Miller" <davem@davemloft.net>,  Eric Dumazet <edumazet@google.com>,  Paolo Abeni <pabeni@redhat.com>,  Matthias Brugger <matthias.bgg@gmail.com>,  AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,  linux-wireless@vger.kernel.org,  netdev@vger.kernel.org,  linux-kernel@vger.kernel.org,  linux-arm-kernel@lists.infradead.org,  linux-mediatek@lists.infradead.org
Subject: Re: [PATCH] wifi: mt7601u: update firmware path
References: <fefcbf36f13873ae0d97438a0156b87e7e1ae64e.1684191377.git.daniel@makrotopia.org>
Date: Tue, 16 May 2023 08:24:12 +0300
In-Reply-To: <fefcbf36f13873ae0d97438a0156b87e7e1ae64e.1684191377.git.daniel@makrotopia.org>
	(Daniel Golle's message of "Tue, 16 May 2023 00:56:53 +0200")
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Daniel Golle <daniel@makrotopia.org> writes:

> mt7601u.bin was moved to mediatek/ folder in linux-wireless via commit
> 8451c2b1 ("mt76xx: Move the old Mediatek WiFi firmware to mediatek")
> and linux-firmware release 20230515.

Why was it moved?

> --- a/drivers/net/wireless/mediatek/mt7601u/usb.h
> +++ b/drivers/net/wireless/mediatek/mt7601u/usb.h
> @@ -8,7 +8,7 @@
>  
>  #include "mt7601u.h"
>  
> -#define MT7601U_FIRMWARE	"mt7601u.bin"
> +#define MT7601U_FIRMWARE	"mediatek/mt7601u.bin"

How do we handle backwards compatibility? We have a rule that old
userspace needs to work with new kernel and this change breaks that.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

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