linux-kernel - Re: [PATCH] Revert "wifi: iwlwifi: mvm: remove support for REDUCE_TX_POWER

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Message-ID: <CAMRc=Md1SO4GWxyn2M8G-nLkc45CTDF-aDvPE9HnX9We+KtudQ@mail.gmail.com>
Date: Mon, 6 Oct 2025 09:38:52 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: "Korenblit, Miriam Rachel" <miriam.rachel.korenblit@...el.com>
Cc: "Berg, Johannes" <johannes.berg@...el.com>, 
	"Anjaneyulu, Pagadala Yesu" <pagadala.yesu.anjaneyulu@...el.com>, 
	"Grumbach, Emmanuel" <emmanuel.grumbach@...el.com>, Bhaskar Chowdhury <unixbhaskar@...il.com>, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, "Peer, Ilan" <ilan.peer@...el.com>, 
	"Gabay, Daniel" <daniel.gabay@...el.com>, 
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Revert "wifi: iwlwifi: mvm: remove support for
 REDUCE_TX_POWER_CMD ver 6 and 7"

On Sun, Oct 5, 2025 at 3:36 PM Korenblit, Miriam Rachel
<miriam.rachel.korenblit@...el.com> wrote:
>
> > So the 89 at the end of the filename is not the version of the firmware?
> It is. But not for "frozen devices" - like yours.
> In such devices, the API number (89 in your case) doesn't increase anymore,
> but we still update the FW from time to time.
>
> > No the full version anyway? I wasn't aware of this. Where is the version
> > information encoded other than the linux-firmware git log?
>
> You can see the SHA-1 of the FW in the dmesg. For example, in the log you sent:
> Loaded firmware version: 89.e9cec78e.0 ty-a0-gf-a0-89.ucode
> The SHA-1 is e9cec78e.
>

Ok, got it. Will keep it in mind in the future.

Bart