From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 07 Nov 2022 16:02:14 +0100 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1os3de-000W5d-TB for lore@lore.pengutronix.de; Mon, 07 Nov 2022 16:02:14 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1os3dc-0007ev-DG for lore@pengutronix.de; Mon, 07 Nov 2022 16:02:14 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+LT+2wk5B3Sey9lYy/n2hj/kbL/utIVPBWwGWicmuTc=; b=CzL3aDFPHz2A402o1NHVw6czTW 7BtK9aXNSqi4cNceYC9bzWkS153ll2CF4ERyu8VRoULDw2dm9k+vScdj0vTbRxqxBbPsBs19ZMzMh mpRh+2dBVcXpujDMp2D8ZE2OKUUz0eVsRgB2xErPO39Ux8un18M6f8pVoQrLZPj0zTCc4smdzl8oc EnJVrRXdljvV2Gr2yLGkHP1gpj7cImswlWM9H4+kfqV7JJkpFGgmRbrHMtl6lYijLer4WGrGKue0L 6xG3r8ujeEh5gbMXwCzseyp1OeBwYCCzpTrXSo4ml+O0WdBRZFDgFLYXBIRK8O5r5NoPWpeGzp/nY ElrY/6mA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1os3cC-00FTSN-83; Mon, 07 Nov 2022 15:00:44 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1os3NT-00FKuC-N4 for barebox@lists.infradead.org; Mon, 07 Nov 2022 14:45:35 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1os3NQ-00037v-3R; Mon, 07 Nov 2022 15:45:28 +0100 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1os3NO-002sIC-GZ; Mon, 07 Nov 2022 15:45:27 +0100 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1os3NO-0023fF-2d; Mon, 07 Nov 2022 15:45:26 +0100 From: Sascha Hauer To: Barebox List Date: Mon, 7 Nov 2022 15:45:21 +0100 Message-Id: <20221107144524.489471-2-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221107144524.489471-1-s.hauer@pengutronix.de> References: <20221107144524.489471-1-s.hauer@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221107_064531_829889_2DA6CCF4 X-CRM114-Status: GOOD ( 10.65 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.9 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 1/4] bitmap: Implement bitmap_*zalloc() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) Implement functions for allocating a bitmap. Signed-off-by: Sascha Hauer --- include/linux/bitmap.h | 7 +++++++ lib/bitmap.c | 10 ++++++++++ 2 files changed, 17 insertions(+) diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index adaf5428fe..7d06fac68d 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -80,6 +80,13 @@ * contain all bit positions from 0 to 'bits' - 1. */ +/* + * Allocation and deallocation of bitmap. + * Provided in lib/bitmap.c to avoid circular dependency. + */ +unsigned long *bitmap_zalloc(unsigned int nbits); +unsigned long *bitmap_xzalloc(unsigned int nbits); + /* * lib/bitmap.c provides these functions: */ diff --git a/lib/bitmap.c b/lib/bitmap.c index 5be6651941..dfc0f06b13 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -837,3 +837,13 @@ void bitmap_copy_le(void *dst, const unsigned long *src, int nbits) } } EXPORT_SYMBOL(bitmap_copy_le); + +unsigned long *bitmap_zalloc(unsigned int nbits) +{ + return calloc(BITS_TO_LONGS(nbits), sizeof(unsigned long)); +} + +unsigned long *bitmap_xzalloc(unsigned int nbits) +{ + return xzalloc(BITS_TO_LONGS(nbits) * sizeof(unsigned long)); +} -- 2.30.2