From patchwork Sat Mar 10 14:14:46 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Chamberlain X-Patchwork-Id: 10273545 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F378A60594 for ; Sat, 10 Mar 2018 14:20:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E42F528D91 for ; Sat, 10 Mar 2018 14:20:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D7C8529C4C; Sat, 10 Mar 2018 14:20:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 161E028D91 for ; Sat, 10 Mar 2018 14:20:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932302AbeCJOPX (ORCPT ); Sat, 10 Mar 2018 09:15:23 -0500 Received: from mail.kernel.org ([198.145.29.99]:50296 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932171AbeCJOPU (ORCPT ); Sat, 10 Mar 2018 09:15:20 -0500 Received: from garbanzo.do-not-panic.com (c-73-15-241-2.hsd1.ca.comcast.net [73.15.241.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BA5B021787; Sat, 10 Mar 2018 14:15:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BA5B021787 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=mcgrof@kernel.org From: "Luis R. Rodriguez" To: gregkh@linuxfoundation.org Cc: akpm@linux-foundation.org, cantabile.desu@gmail.com, kubakici@wp.pl, linux-wireless@vger.kernel.org, keescook@chromium.org, shuah@kernel.org, mfuzzey@parkeon.com, zohar@linux.vnet.ibm.com, dhowells@redhat.com, pali.rohar@gmail.com, tiwai@suse.de, arend.vanspriel@broadcom.com, zajec5@gmail.com, nbroeking@me.com, markivx@codeaurora.org, broonie@kernel.org, dmitry.torokhov@gmail.com, dwmw2@infradead.org, torvalds@linux-foundation.org, Abhay_Salunke@dell.com, bjorn.andersson@linaro.org, jewalt@lgsinnovations.com, oneukum@suse.com, ast@fb.com, andresx7@gmail.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, "Luis R. Rodriguez" Subject: [PATCH v3 05/20] firmware: simplify CONFIG_FW_LOADER_USER_HELPER_FALLBACK further Date: Sat, 10 Mar 2018 06:14:46 -0800 Message-Id: <20180310141501.2214-6-mcgrof@kernel.org> X-Mailer: git-send-email 2.13.2 In-Reply-To: <20180310141501.2214-1-mcgrof@kernel.org> References: <20180310141501.2214-1-mcgrof@kernel.org> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP All CONFIG_FW_LOADER_USER_HELPER_FALLBACK really is, is just a bool, initailized at build time. Define it as such. This simplifies the logic even further, removing now all explicit #ifdefs around the code. Acked-by: Kees Cook Signed-off-by: Luis R. Rodriguez --- drivers/base/firmware_loader.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/drivers/base/firmware_loader.c b/drivers/base/firmware_loader.c index 7dd36ace6152..59dba794ce1a 100644 --- a/drivers/base/firmware_loader.c +++ b/drivers/base/firmware_loader.c @@ -266,6 +266,22 @@ static inline bool fw_state_is_aborted(struct fw_priv *fw_priv) #ifdef CONFIG_FW_LOADER_USER_HELPER +/** + * struct firmware_fallback_config - firmware fallback configuratioon settings + * + * Helps describe and fine tune the fallback mechanism. + * + * @force_sysfs_fallback: force the sysfs fallback mechanism to be used + * as if one had enabled CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y. + */ +struct firmware_fallback_config { + bool force_sysfs_fallback; +}; + +static const struct firmware_fallback_config fw_fallback_config = { + .force_sysfs_fallback = IS_ENABLED(CONFIG_FW_LOADER_USER_HELPER_FALLBACK), +}; + static inline bool fw_sysfs_done(struct fw_priv *fw_priv) { return __fw_state_check(fw_priv, FW_STATUS_DONE); @@ -1151,19 +1167,14 @@ static int fw_load_from_user_helper(struct firmware *firmware, return ret; } -#ifdef CONFIG_FW_LOADER_USER_HELPER_FALLBACK -static bool fw_force_sysfs_fallback(unsigned int opt_flags) -{ - return true; -} -#else static bool fw_force_sysfs_fallback(unsigned int opt_flags) { + if (fw_fallback_config.force_sysfs_fallback) + return true; if (!(opt_flags & FW_OPT_USERHELPER)) return false; return true; } -#endif static bool fw_run_sysfs_fallback(unsigned int opt_flags) {