From patchwork Wed Jun 12 18:48:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 804331 Received: from mail-wm1-f47.google.com (mail-wm1-f47.google.com [209.85.128.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5EE3247A6C for ; Wed, 12 Jun 2024 18:48:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.47 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718218117; cv=none; b=A/jt43hadv0jyjRFRfeyeyFeaLGZfjOXJ6hwJAt/lahkCwzMqT05yzzx7DAkiV/3UYApiYWyAFq601svB5ZB8qq8ubXt9uXzZTfXyNN3EMKpkqgqakZ27Hgwo4d4vU9kj3iGgSdz3e42D2h4AdU24C+k8UPgqjP/DM9vHJr4ip4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718218117; c=relaxed/simple; bh=zzetqvw9rE3z6luIaQuIn5l8rk0hobL8f1wgIozEpBk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=B0D51aP5RGgbHhMrSJFuaB19LfqJKrDU7YqXd0u8a9bwA1THPr5xkcS/JXr8HmsZ95qckz6cE8EgPet+iHRdvA5QjfCeTZ50GBAADIENvlWTqdILvZ4coR3QtZg7XAUirOTZJ2Gh0KrsOVlxxZMrkobuXAKvXXII22PLbFmKYk0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=KaAWPsH0; arc=none smtp.client-ip=209.85.128.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="KaAWPsH0" Received: by mail-wm1-f47.google.com with SMTP id 5b1f17b1804b1-42179dafd6bso8528675e9.0 for ; Wed, 12 Jun 2024 11:48:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1718218112; x=1718822912; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=Cmew680A86e6P0TJ/CSWiTzW4h4Q5bXUMWdZRLFG580=; b=KaAWPsH0iWi05MR3CjibinOnyUfKs6Vrjk5z1YFfhxvwb4xtWBQvS8mgsDpFbekVuZ VVrEqT456Ak+f14gxTiYuTHpVVoyqkPUzJ5o9b8Snot4o3ExzEOaGq7DAC+a/DzZMu3C yWjBZmYlHa0zo6d6nXxA/HP0Q3udWAFi8baG+z45q2782bletBp/HuBzgQDlSlU6N4no RE8ihe6S4vVLxO4lfCjjQwRHaAcgdxQU7dN7jkGWLI+c/Zuz+ugpsT7Vgo98RB2G4SER xFyOS81/IFleLfNRTnVTvMYgOVs+IgmckIZjRp39l+18sNi0gDkEeKzD7WcVVUQYcF0I Y6qg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718218112; x=1718822912; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Cmew680A86e6P0TJ/CSWiTzW4h4Q5bXUMWdZRLFG580=; b=KEGJ52jB1ATfh0h9DJ4wJ21NCRvqywu0LWxW3N+5/c3CGYBEtkXuZdnEb4TZTT4cCj 38K1rjkJimiR/v9Fxf4L8xkjyHjrJ7NAQaHV1jcz7Ktd/psCBuytU/sIJGXJI5wu9kL9 N58OX/q7mWO1VpeBSW6Sti6qnxSLd5geeuMInV74uAs8E0IbEeXndPrj7va94mhm5LbG oodMW18Gv4BPL6/1F9WcGTRCEnKAl4yLxrg5EjuyPbVRZl/thz8fj/lCzzGiIV/+dc1j cQMoyT1VzjDBEwFm8CaUwzYpNtEaUBft2/FyhnO8je8BZ6I0wJMMuLZVuVVF65Vvb1cV HgXQ== X-Gm-Message-State: AOJu0YwKoxy1PwyRHsvO50eVvkdn7kofOlPWB5u5eTOXDY6kGXv1Y7dx 5tI+jOgntuOZg4O45iwO5X760jnUuhir6YyafcmhCPJUtyLTQ/ZBEHKqTaUtiQo= X-Google-Smtp-Source: AGHT+IGxdz1Bzt3Q1KQfzBP7LkJlIATQ89AuIi4xcYpUyaYS13i760yEF6S1V720g/EmquCWrHrsvw== X-Received: by 2002:adf:e646:0:b0:35f:e890:fbe1 with SMTP id ffacd0b85a97d-360718df02amr480736f8f.19.1718218111541; Wed, 12 Jun 2024 11:48:31 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:8d3:3800:a172:4e8b:453e:2f03]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-35ef5fc1c77sm17147058f8f.95.2024.06.12.11.48.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Jun 2024 11:48:30 -0700 (PDT) From: Bartosz Golaszewski To: Mika Westerberg , Andy Shevchenko , Linus Walleij Cc: linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH] gpiolib: put gpio_suffixes in a single compilation unit Date: Wed, 12 Jun 2024 20:48:21 +0200 Message-ID: <20240612184821.58053-1-brgl@bgdev.pl> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Bartosz Golaszewski The gpio_suffixes array is defined in the gpiolib.h header. This means the array is stored in .rodata of every compilation unit that includes it. Put the definition for the array in gpiolib.c and export just the symbol in the header. We need the size of the array so expose it too. Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpiolib-acpi.c | 4 ++-- drivers/gpio/gpiolib-of.c | 4 ++-- drivers/gpio/gpiolib.c | 4 ++++ drivers/gpio/gpiolib.h | 3 ++- 4 files changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index bb063b81cee6..69cd2be9c7f3 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -976,7 +976,7 @@ __acpi_find_gpio(struct fwnode_handle *fwnode, const char *con_id, unsigned int int i; /* Try first from _DSD */ - for (i = 0; i < ARRAY_SIZE(gpio_suffixes); i++) { + for (i = 0; i < gpio_suffix_count; i++) { if (con_id) { snprintf(propname, sizeof(propname), "%s-%s", con_id, gpio_suffixes[i]); @@ -1453,7 +1453,7 @@ int acpi_gpio_count(const struct fwnode_handle *fwnode, const char *con_id) unsigned int i; /* Try first from _DSD */ - for (i = 0; i < ARRAY_SIZE(gpio_suffixes); i++) { + for (i = 0; i < gpio_suffix_count; i++) { if (con_id) snprintf(propname, sizeof(propname), "%s-%s", con_id, gpio_suffixes[i]); diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index d75f6ee37028..49d533df2cd9 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -103,7 +103,7 @@ int of_gpio_count(const struct fwnode_handle *fwnode, const char *con_id) if (ret > 0) return ret; - for (i = 0; i < ARRAY_SIZE(gpio_suffixes); i++) { + for (i = 0; i < gpio_suffix_count; i++) { if (con_id) snprintf(propname, sizeof(propname), "%s-%s", con_id, gpio_suffixes[i]); @@ -676,7 +676,7 @@ struct gpio_desc *of_find_gpio(struct device_node *np, const char *con_id, unsigned int i; /* Try GPIO property "foo-gpios" and "foo-gpio" */ - for (i = 0; i < ARRAY_SIZE(gpio_suffixes); i++) { + for (i = 0; i < gpio_suffix_count; i++) { if (con_id) snprintf(prop_name, sizeof(prop_name), "%s-%s", con_id, gpio_suffixes[i]); diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 0ec82ac7f0f4..ed620442f32c 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include +#include #include #include #include @@ -89,6 +90,9 @@ DEFINE_STATIC_SRCU(gpio_devices_srcu); static DEFINE_MUTEX(gpio_machine_hogs_mutex); static LIST_HEAD(gpio_machine_hogs); +const char *const gpio_suffixes[] = { "gpios", "gpio" }; +const size_t gpio_suffix_count = ARRAY_SIZE(gpio_suffixes); + static void gpiochip_free_hogs(struct gpio_chip *gc); static int gpiochip_add_irqchip(struct gpio_chip *gc, struct lock_class_key *lock_key, diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index 48e086c2f416..a75635891c6f 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -90,7 +90,8 @@ static inline struct gpio_device *to_gpio_device(struct device *dev) } /* gpio suffixes used for ACPI and device tree lookup */ -static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" }; +extern const char *const gpio_suffixes[]; +extern const size_t gpio_suffix_count; /** * struct gpio_array - Opaque descriptor for a structure of GPIO array attributes