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[80.56.215.227]) by smtp.gmail.com with ESMTPSA id k7-20020a1709062a4700b008b176df2899sm713917eje.160.2023.03.17.02.13.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 17 Mar 2023 02:13:19 -0700 (PDT) Message-ID: <75cc305b-575c-91d9-de66-bf4757c30439@broadcom.com> Date: Fri, 17 Mar 2023 10:13:19 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.7.2 Subject: Re: wifi breakage due to commit "wifi: brcmfmac: add support for vendor-specific firmware api" To: Michael Stapelberg Cc: Johannes Berg , Kalle Valo , Franky Lin , Pieter-Paul Giesberts , Hante Meuleman , linux-wireless@vger.kernel.org References: <186e23b5668.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <186e26dc0a8.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <186e4673718.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <89262772-7358-77e8-8913-c459819d544a@broadcom.com> <186e9109ae8.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <20fc4c19-6f39-d3bf-b873-ea26a26175cd@broadcom.com> From: Arend van Spriel In-Reply-To: Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="00000000000015088505f714fdec" Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org --00000000000015088505f714fdec Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 3/17/2023 9:04 AM, Michael Stapelberg wrote: > Can you outline under what conditions the race can happen? I was concerned about brcmfmac-wcc doing register before brcmfmac is waiting for that. Looking more into it I think this is not a concern. We are using a completion construct which will synchronize properly. 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