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[80.56.140.230]) by smtp.gmail.com with ESMTPSA id p15sm2426608pfh.86.2022.01.06.04.16.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 06 Jan 2022 04:16:49 -0800 (PST) Message-ID: <911f7e95-7d6a-1c7f-c8de-0d4e0c7b7238@broadcom.com> Date: Thu, 6 Jan 2022 13:16:41 +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 06/35] brcmfmac: firmware: Support passing in multiple board_types 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> <20220104072658.69756-7-marcan@marcan.st> From: Arend van Spriel In-Reply-To: <20220104072658.69756-7-marcan@marcan.st> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000005c493305d4e8d80f" Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org --0000000000005c493305d4e8d80f 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: > In order to make use of the multiple alt_path functionality, change > board_type to an array. Bus drivers can pass in a NULL-terminated list > of board type strings to try for the firmware fetch. Reviewed-by: Arend van Spriel > Acked-by: Linus Walleij > Signed-off-by: Hector Martin > --- > .../broadcom/brcm80211/brcmfmac/firmware.c | 35 ++++++++++++------- > .../broadcom/brcm80211/brcmfmac/firmware.h | 2 +- > .../broadcom/brcm80211/brcmfmac/pcie.c | 4 ++- > .../broadcom/brcm80211/brcmfmac/sdio.c | 2 +- > 4 files changed, 27 insertions(+), 16 deletions(-) > > diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c > index 7570dbf22cdd..054ea3ed133e 100644 > --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c > +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c > @@ -594,28 +594,39 @@ static int brcmf_fw_complete_request(const struct firmware *fw, > return (cur->flags & BRCMF_FW_REQF_OPTIONAL) ? 0 : ret; > } > > -static int brcm_alt_fw_paths(const char *path, const char *board_type, > +static int brcm_alt_fw_paths(const char *path, struct brcmf_fw *fwctx, > const char *alt_paths[BRCMF_FW_MAX_ALT_PATHS]) > { > + const char **board_types = fwctx->req->board_types; > + unsigned int i; > char alt_path[BRCMF_FW_NAME_LEN]; > const char *suffix; [...] > + for (i = 0; i < BRCMF_FW_MAX_ALT_PATHS; i++) { > + if (!board_types[i]) > + break; > > - strlcat(alt_path, ".", BRCMF_FW_NAME_LEN); > - strlcat(alt_path, board_type, BRCMF_FW_NAME_LEN); > - strlcat(alt_path, suffix, BRCMF_FW_NAME_LEN); > + /* strip extension at the end */ > + strscpy(alt_path, path, BRCMF_FW_NAME_LEN); > + alt_path[suffix - path] = 0; > > - alt_paths[0] = kstrdup(alt_path, GFP_KERNEL); > + strlcat(alt_path, ".", BRCMF_FW_NAME_LEN); > + strlcat(alt_path, board_types[i], BRCMF_FW_NAME_LEN); > + strlcat(alt_path, suffix, BRCMF_FW_NAME_LEN); > + > + alt_paths[i] = kstrdup(alt_path, GFP_KERNEL); > + brcmf_dbg(TRACE, "FW alt path: %s\n", alt_paths[i]); Could use alt_path in the debug print thus avoiding additional array access (working hard to find those nits to pick ;-) ). > + } 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