From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FA78C433E8 for ; Mon, 13 Jul 2020 15:00:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 135D720771 for ; Mon, 13 Jul 2020 15:00:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20150623.gappssmtp.com header.i=@bgdev-pl.20150623.gappssmtp.com header.b="rSp1ckUH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730011AbgGMO7t (ORCPT ); Mon, 13 Jul 2020 10:59:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34354 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729758AbgGMO7s (ORCPT ); Mon, 13 Jul 2020 10:59:48 -0400 Received: from mail-wr1-x442.google.com (mail-wr1-x442.google.com [IPv6:2a00:1450:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F22B8C061794 for ; Mon, 13 Jul 2020 07:59:47 -0700 (PDT) Received: by mail-wr1-x442.google.com with SMTP id z13so16909233wrw.5 for ; Mon, 13 Jul 2020 07:59:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=hiVSo3xlj6ss4Z1I13IdfwQU+nfjMMT6+mU8Bg5YKmM=; b=rSp1ckUHPmHljClMQoIDDSw1ZCB7+ygalxtu5lHGTlN5T3q2RVoH60LPL6a4oxo/ty z0HQV95Z9mU86Vd/A/IUFtH/uJjLYmNuqYNKD2NYrejOVpNvFarZV+J0Ec+pnQT/Abgb HpclKpTNjEG/gl3XYssuh1rDjk5AjdDUrI8OuRabw5IccTvCHZGuWSTAi6tGsC2/FQVF nEBBDzZbPQXKqoIyz6Ltu3poOOlhxF3n8CguwS4Q8Xc0MSO0dHDE9sNxR/Y3ADBUUksn pu6EXZbVF4tml637IPR+2tIrGMvndreNuw6dnTpm28gZLa9qxm/+P+SfiwGENPndp3P4 AiNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=hiVSo3xlj6ss4Z1I13IdfwQU+nfjMMT6+mU8Bg5YKmM=; b=NhhLhLkFlWSn+vEPjjgBSlBBfcnL/oo4H7N6Wq6WpVeFF9/8v1bgUn6zn3gQQAjJ7Y WUNeFMUDXGN4EYqcBeKzwbpqr1fsidLxgrZdvjkmyLydkW/hVQ01MDdZUHU1jcJd1IcT T5geAMiKcuIPn6N85lcQMzCgvTM8T5iEpyDUZ5ek+/wfSSiu6JtpYw52VWYrcamYEKAP OKGwzZ48yj3paL6x0cOUsdY1ZNtebx76MnL/nyBZXvrS8t99tgDvswaA7+U382AHNeHc nYR0HUooNSXvBOmZS8tBsSI6bIL8ufuymG03lEQUIwQh6WozVdkzCuUsdGqGq4YNrEx1 Uq+w== X-Gm-Message-State: AOAM533YfvquHhC2jKVngGY8b2/d9ZdQzo1zeH6En+BvWG3NoTTHdiTi Ml996T6iosQrQvkK35NymcEQOQ== X-Google-Smtp-Source: ABdhPJzJvIhOZM1tW3JbhqV6XyxG2YJWfklQ1nvdDw0QVKBI2giA+0EpuZ7a9S9IT9ipoa2QgtDwsQ== X-Received: by 2002:a5d:4710:: with SMTP id y16mr82938978wrq.189.1594652385764; Mon, 13 Jul 2020 07:59:45 -0700 (PDT) Received: from debian-brgl.home (lfbn-nic-1-68-20.w2-15.abo.wanadoo.fr. [2.15.159.20]) by smtp.gmail.com with ESMTPSA id u20sm21991145wmm.15.2020.07.13.07.59.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jul 2020 07:59:45 -0700 (PDT) From: Bartosz Golaszewski To: Jonathan Cameron , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , Michal Simek , Greg Kroah-Hartman , Guenter Roeck , Andy Shevchenko Cc: linux-iio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v4 0/3] devres: provide and use devm_krealloc() Date: Mon, 13 Jul 2020 16:59:31 +0200 Message-Id: <20200713145934.18243-1-brgl@bgdev.pl> X-Mailer: git-send-email 2.26.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bartosz Golaszewski Regular krealloc() obviously can't work with managed memory. This series implements devm_krealloc() and adds the first users with hope that this helper will be adopted by other drivers currently using non-managed krealloc(). Some additional changes to the code modified by main patches are included. v1 -> v2: - remove leftover call to hwmon_device_unregister() from pmbus_core.c - add a patch extending devm_kmalloc() to handle zero size case - use WARN_ON() instead of WARN_ONCE() in devm_krealloc() when passed a pointer to non-managed memory - correctly handle the case when devm_krealloc() is passed a pointer to memory in .rodata (potentially returned by devm_kstrdup_const()) - correctly handle ZERO_SIZE_PTR passed as the ptr argument in devm_krealloc() v2 -> v3: - drop already applied patches - collect Acks - add an additional user in iio v3 -> v4: - add the kerneldoc for devm_krealloc() - WARN() outside of spinlock - rename local variable Bartosz Golaszewski (3): devres: provide devm_krealloc() hwmon: pmbus: use more devres helpers iio: adc: xilinx-xadc: use devm_krealloc() .../driver-api/driver-model/devres.rst | 1 + drivers/base/devres.c | 67 +++++++++++++++++++ drivers/hwmon/pmbus/pmbus_core.c | 28 +++----- drivers/iio/adc/xilinx-xadc-core.c | 16 ++--- include/linux/device.h | 2 + 5 files changed, 87 insertions(+), 27 deletions(-) -- 2.26.1