From patchwork Fri Apr 8 18:18:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1615027 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=fT6ifnCR; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4KZmkN05lCz9sG6 for ; Sat, 9 Apr 2022 04:19:56 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238496AbiDHSV4 (ORCPT ); Fri, 8 Apr 2022 14:21:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58966 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233475AbiDHSVz (ORCPT ); Fri, 8 Apr 2022 14:21:55 -0400 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1A45F11A545; Fri, 8 Apr 2022 11:19:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1649441991; x=1680977991; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=EphYyiMevZDlJs+2824J9QD6Peqsq22Jz9uC9UNYWl0=; b=fT6ifnCRh5tUethjQaRABMDlhA2QNDB3wGST7CY+yupuFAkHjcM6GNos AIDoqGt0csOAUIKOk9HTmU/o45c/NtwIX7KgSK7J3i4KlOvFEznwBsQ8z /D2LE2HM9pnhquWrTdvf+SkhKCw8M43VI8nE2UmQKP5EKggxWTUurJIni qkkeMZfPqdtNKOh+8m+LLmR+Oh1BkkfZ0yWKrWZdnX7fCDu1C2JJMMF1E obw9tpub5zaawS2QLzwcQ8bD9y9ALE1+EDM6eBW9GgoGKvsKR3PGNMQsM bLdWiKvBgEzIyPLVav2TFUEneW63Y+zMd5Gu8YW3c0nPuYZonipzAu38w A==; X-IronPort-AV: E=McAfee;i="6400,9594,10311"; a="242253245" X-IronPort-AV: E=Sophos;i="5.90,245,1643702400"; d="scan'208";a="242253245" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Apr 2022 11:19:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,245,1643702400"; d="scan'208";a="557874351" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga007.fm.intel.com with ESMTP; 08 Apr 2022 11:19:43 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 0D5FE144; Fri, 8 Apr 2022 21:18:55 +0300 (EEST) From: Andy Shevchenko To: Bartosz Golaszewski , Andy Shevchenko , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Linus Walleij Subject: [PATCH v2 1/5] gpiolib: Embed iterator variable into for_each_gpio_desc_with_flag() Date: Fri, 8 Apr 2022 21:18:50 +0300 Message-Id: <20220408181854.73528-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Spam-Status: No, score=-4.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The iterator loop is used exclusively to get a descriptor, which in its turn is what is being used by the caller. Embed the iterator variable into the loop in the for_each_gpio_desc_with_flag() macro helper. Suggested-by: Bartosz Golaszewski Signed-off-by: Andy Shevchenko --- v2: new patch drivers/gpio/gpiolib-of.c | 3 +-- drivers/gpio/gpiolib-sysfs.c | 3 +-- drivers/gpio/gpiolib.c | 3 +-- drivers/gpio/gpiolib.h | 8 ++++---- 4 files changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index ae1ce319cd78..47c0e07802d6 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -712,9 +712,8 @@ static void of_gpiochip_remove_hog(struct gpio_chip *chip, struct device_node *hog) { struct gpio_desc *desc; - unsigned int i; - for_each_gpio_desc_with_flag(i, chip, desc, FLAG_IS_HOGGED) + for_each_gpio_desc_with_flag(chip, desc, FLAG_IS_HOGGED) if (desc->hog == hog) gpiochip_free_own_desc(desc); } diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c index d44ffea038f5..cd27bf173dec 100644 --- a/drivers/gpio/gpiolib-sysfs.c +++ b/drivers/gpio/gpiolib-sysfs.c @@ -760,7 +760,6 @@ void gpiochip_sysfs_unregister(struct gpio_device *gdev) { struct gpio_desc *desc; struct gpio_chip *chip = gdev->chip; - unsigned int i; if (!gdev->mockdev) return; @@ -773,7 +772,7 @@ void gpiochip_sysfs_unregister(struct gpio_device *gdev) mutex_unlock(&sysfs_lock); /* unregister gpiod class devices owned by sysfs */ - for_each_gpio_desc_with_flag(i, chip, desc, FLAG_SYSFS) + for_each_gpio_desc_with_flag(chip, desc, FLAG_SYSFS) gpiod_free(desc); } diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index a199d2ff7689..96b5da6a8c3b 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -4138,9 +4138,8 @@ int gpiod_hog(struct gpio_desc *desc, const char *name, static void gpiochip_free_hogs(struct gpio_chip *gc) { struct gpio_desc *desc; - int id; - for_each_gpio_desc_with_flag(id, gc, desc, FLAG_IS_HOGGED) + for_each_gpio_desc_with_flag(gc, desc, FLAG_IS_HOGGED) gpiochip_free_own_desc(desc); } diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index 06f3faa9fbef..7bac62d36f0c 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -100,10 +100,10 @@ struct gpio_array { struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, unsigned int hwnum); -#define for_each_gpio_desc_with_flag(i, gc, desc, flag) \ - for (i = 0, desc = gpiochip_get_desc(gc, i); \ - i < gc->ngpio; \ - i++, desc = gpiochip_get_desc(gc, i)) \ +#define for_each_gpio_desc_with_flag(gc, desc, flag) \ + for (unsigned int __i = 0; \ + __i < gc->ngpio && (desc = gpiochip_get_desc(gc, __i)); \ + __i++) \ if (!test_bit(flag, &desc->flags)) {} else int gpiod_get_array_value_complex(bool raw, bool can_sleep,