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[80.56.140.230]) by smtp.gmail.com with ESMTPSA id q18sm3112682eds.11.2022.01.09.23.20.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 09 Jan 2022 23:20:03 -0800 (PST) Message-ID: <3220ccb8-0b24-af9d-83b6-489c74c26ddc@broadcom.com> Date: Mon, 10 Jan 2022 08:19:59 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [PATCH v2 12/35] brcmfmac: pcie: Fix crashes due to early IRQs To: Hector Martin , Kalle Valo , "David S. Miller" , Jakub Kicinski , Rob Herring , "Rafael J. Wysocki" , Len Brown , Arend van Spriel , Franky Lin , Hante Meuleman , Chi-hsien Lin , Wright Feng , Dmitry Osipenko Cc: Sven Peter , Alyssa Rosenzweig , Mark Kettenis , =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= , Pieter-Paul Giesberts , Linus Walleij , Hans de Goede , "John W. Linville" , "brian m. carlson" , Andy Shevchenko , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com, SHA-cyfmac-dev-list@infineon.com References: <20220104072658.69756-1-marcan@marcan.st> <20220104072658.69756-13-marcan@marcan.st> From: Arend van Spriel In-Reply-To: <20220104072658.69756-13-marcan@marcan.st> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="00000000000061e00f05d5352a65" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --00000000000061e00f05d5352a65 Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 1/4/2022 8:26 AM, Hector Martin wrote: > The driver was enabling IRQs before the message processing was > initialized. This could cause IRQs to come in too early and crash the > driver. Instead, move the IRQ enable and hostready to a bus preinit > function, at which point everything is properly initialized. > > Fixes: 9e37f045d5e7 ("brcmfmac: Adding PCIe bus layer support.") 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