Return-path: 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 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> (sfid-20180310_152005_833166_5BE1145A) In-Reply-To: <20180310141501.2214-1-mcgrof@kernel.org> References: <20180310141501.2214-1-mcgrof@kernel.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: 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) { -- 2.16.2