linux-kernel - [PATCH v2 0/6] devres: provide and use devm

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Message-Id: <20200629065008.27620-1-brgl@bgdev.pl>
Date:   Mon, 29 Jun 2020 08:50:02 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Jonathan Corbet <corbet@....net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hwmon@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH v2 0/6] devres: provide and use devm_krealloc()

From: Bartosz Golaszewski <bgolaszewski@...libre.com>

Regular krealloc() obviously can't work with managed memory. This series
implements devm_krealloc() and adds the first user 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()

Bartosz Golaszewski (6):
  devres: remove stray space from devm_kmalloc() definition
  devres: move the size check from alloc_dr() into a separate function
  device: remove 'extern' attribute from function prototypes in device.h
  devres: handle zero size in devm_kmalloc()
  devres: provide devm_krealloc()
  hwmon: pmbus: use more devres helpers

 .../driver-api/driver-model/devres.rst        |   1 +
 drivers/base/devres.c                         |  75 +++++-
 drivers/hwmon/pmbus/pmbus_core.c              |  28 +--
 include/linux/device.h                        | 225 +++++++++---------
 4 files changed, 187 insertions(+), 142 deletions(-)

-- 
2.26.1