From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fgw20-7.mail.saunalahti.fi (fgw20-7.mail.saunalahti.fi [62.142.5.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5371818E1F for ; Sun, 10 Nov 2024 20:17:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.142.5.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731269837; cv=none; b=oT7kUIP0PWTbwAY56vbwSBBmbe58/hVQjPSmwvGMEDxqJc18tAYRDjoXlEAdIauCVBUFfhNslB+5g1o82jWcYATEIS1CTnXP+L6v4ZShSHel3+9Lh0HgCkgCGZxaaFPXc2AE1kqQIwjHbSNDWiMOAB4wdji8FRopdQjTjTUu/FI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731269837; c=relaxed/simple; bh=NGIScqIeeFRYfnwjF1bTumgir2LtoUL83VTSB/cTw5E=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hUE001wkwckrOuPjhtZY9OwEpvLJW/grQ8YdQRiffHXyXKc0tnRp7EKo8HT1ROAWLED0RCs6IFTL9o3dtB48hlujHZcw5hO5LPtYeV+2MbjAZ78ogn3jucw6h4d3rsgr631i/okgXCdpfYcn5wqnlbUYdnt0wr9o2uXpeOdyUak= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com; spf=fail smtp.mailfrom=gmail.com; arc=none smtp.client-ip=62.142.5.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=gmail.com Received: from localhost (88-113-24-75.elisa-laajakaista.fi [88.113.24.75]) by fgw23.mail.saunalahti.fi (Halon) with ESMTP id c33b8ed2-9fa0-11ef-a0b4-005056bdfda7; Sun, 10 Nov 2024 22:17:09 +0200 (EET) From: Andy Shevchenko To: Bartosz Golaszewski , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Bartosz Golaszewski , Kent Gibson , Linus Walleij , Andy Shevchenko Subject: [resend, PATCH v1 1/1] gpiolib: cdev: use !mem_is_zero() instead of memchr_inv(s, 0, n) Date: Sun, 10 Nov 2024 22:16:15 +0200 Message-ID: <20241110201706.16614-1-andy.shevchenko@gmail.com> X-Mailer: git-send-email 2.47.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Use the mem_is_zero() helper where possible. Signed-off-by: Andy Shevchenko --- resend: mem_is_zero() is now part of the official kernel drivers/gpio/gpiolib-cdev.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index 83ebcc8c83eb..40f76a90fd7d 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include @@ -25,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -1215,7 +1215,7 @@ static int gpio_v2_line_config_validate(struct gpio_v2_line_config *lc, if (lc->num_attrs > GPIO_V2_LINE_NUM_ATTRS_MAX) return -EINVAL; - if (memchr_inv(lc->padding, 0, sizeof(lc->padding))) + if (!mem_is_zero(lc->padding, sizeof(lc->padding))) return -EINVAL; for (i = 0; i < num_lines; i++) { @@ -1629,7 +1629,7 @@ static int linereq_create(struct gpio_device *gdev, void __user *ip) if ((ulr.num_lines == 0) || (ulr.num_lines > GPIO_V2_LINES_MAX)) return -EINVAL; - if (memchr_inv(ulr.padding, 0, sizeof(ulr.padding))) + if (!mem_is_zero(ulr.padding, sizeof(ulr.padding))) return -EINVAL; lc = &ulr.config; @@ -2411,7 +2411,7 @@ static int lineinfo_get(struct gpio_chardev_data *cdev, void __user *ip, if (copy_from_user(&lineinfo, ip, sizeof(lineinfo))) return -EFAULT; - if (memchr_inv(lineinfo.padding, 0, sizeof(lineinfo.padding))) + if (!mem_is_zero(lineinfo.padding, sizeof(lineinfo.padding))) return -EINVAL; desc = gpio_device_get_desc(cdev->gdev, lineinfo.offset); -- 2.47.0