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[144.49.247.20]) by smtp-relay.gmail.com with ESMTPS id 98e67ed59e1d1-39531fba87esm538438a91.12.2026.08.16.02.27.31 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 16 Aug 2026 02:27:31 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-pg1-f198.google.com with SMTP id 41be03b00d2f7-cc12e8e22b7so1026665a12.0 for ; Sun, 16 Aug 2026 02:27:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1786872450; x=1787477250; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to :content-type; bh=6J7Zj/2iLPXHmJLANMYAlHCnCm6alEEBJz8C1vVMkgk=; b=JAD68Yo11J1YEEdaQzy7E/IWaBUTGu5gjM3tGSi2rpZztg6lMg+cm2n/CKJrBXGe2K 4cLUKAilSB/oVdjRFbYya+srVJ8kWIc5wSVIuq5rEClwHyYtCZxP/EkII3NavnN67cXM Rwr1hdJmEzh1NYzw87E2rRjVCFbvIQ//limp0= X-Forwarded-Encrypted: i=1; AHgh+Rpr/0il9Dhe/B0vZsdNNLh9xS24uNGzfPbTkBppurtEMVhVSQcug2FSeIbpWsQsDPvOwt+mOOx3KSnpHOY=@vger.kernel.org X-Received: by 2002:a05:6a21:3384:b0:3b2:8685:1473 with SMTP id adf61e73a8af0-3cc719c7356mr23248613637.7.1786872450071; Sun, 16 Aug 2026 02:27:30 -0700 (PDT) X-Received: by 2002:a05:6a21:3384:b0:3b2:8685:1473 with SMTP id adf61e73a8af0-3cc719c7356mr23248589637.7.1786872449629; Sun, 16 Aug 2026 02:27:29 -0700 (PDT) Received: from [10.229.42.78] ([192.19.176.227]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-141387e49d3sm29196000c88.7.2026.08.16.02.27.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 16 Aug 2026 02:27:29 -0700 (PDT) Message-ID: <999f6e0e-8706-479e-a861-be83fb022a62@broadcom.com> Date: Sun, 16 Aug 2026 11:27:23 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH wireless-next] wifi: brcmfmac: allow opting into PM_MAX power management To: Alexander Fischer , linux-wireless@vger.kernel.org Cc: brcm80211@lists.linux.dev, brcm80211-dev-list.pdl@broadcom.com, linux-kernel@vger.kernel.org, Andre Eikmeyer References: <20260810150552.25375-1-alexander@fischermail.me> <20260814205115.799977-1-alexander@fischermail.me> Content-Language: en-US From: Arend van Spriel In-Reply-To: <20260814205115.799977-1-alexander@fischermail.me> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e On 14/08/2026 22:51, Alexander Fischer wrote: > Hello, > > I would like to withdraw this patch. > > Further testing on BCM4364 showed intermittent latency spikes of about > 50-250 ms with PM_MAX. The connection can work normally for extended > periods, but the issue is reproducible and disappears after switching > back to PM_FAST. This invalidates my earlier statement that I had > observed no latency regression. At least thanks for testing. > Given this trade-off, I no longer think exposing PM_MAX through this new > module parameter is worthwhile, and I do not plan to send a v2. Please > drop the patch. Agree. > pw-bot: changes-requested > > Sorry for the noise, and thanks for your time. No problem. Had only glanced at the patch so far. I did have my doubts about your latency statement, but not fired up my setup with it. Regards, Arend