linux-kernel - [PATCH v5 0/7] kernel.h further split

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Message-Id: <20211013170417.87909-1-andriy.shevchenko@linux.intel.com>
Date:   Wed, 13 Oct 2021 20:04:10 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        kunit-dev@...glegroups.com, linux-media@...r.kernel.org
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        jic23@...nel.org, linux@...musvillemoes.dk,
        Thorsten Leemhuis <regressions@...mhuis.info>
Subject: [PATCH v5 0/7] kernel.h further split

v4: https://lore.kernel.org/linux-media/20211007154407.29746-1-andriy.shevchenko@linux.intel.com/T/#u
v3: https://lore.kernel.org/linux-media/20211007150339.28910-1-andriy.shevchenko@linux.intel.com/T/#u
v2: https://lore.kernel.org/linux-media/20211007095129.22037-1-andriy.shevchenko@linux.intel.com/T/#u

The kernel.h is a set of something which is not related to each other
and often used in non-crossed compilation units, especially when drivers
need only one or two macro definitions from it.

Here is the split of container_of(). The goals are the following:
- untwist the dependency hell a bit
- drop kernel.h inclusion where it's only used for container_of()

In v5:
- dropped code duplication (Miguel)
- added necessary includes into container_of.h (Joe)
- dropped other header shuffling in list.h (Jonathan)
- added tag (Sakari)

In v4:
- dropped kobject.h change (Greg)
- Cc'ed more people (as per v1)

In v3:
- split patch 2 to more patches (Greg)
- excluded C changes (Herbert, Greg)
- measured with kcbench, see below (Greg)

Andy Shevchenko (7):
  kernel.h: Drop unneeded <linux/kernel.h> inclusion from other headers
  kernel.h: Split out container_of() and typeof_member() macros
  kunit: Replace kernel.h with the necessary inclusions
  list: Replace kernel.h with the necessary inclusions
  llist: Replace kernel.h with the necessary inclusions
  plist: Replace kernel.h with the necessary inclusions
  media: entity: Replace kernel.h with the necessary inclusions

 include/kunit/test.h         | 13 ++++++++++--
 include/linux/container_of.h | 40 ++++++++++++++++++++++++++++++++++++
 include/linux/kernel.h       | 33 +----------------------------
 include/linux/list.h         |  4 +++-
 include/linux/llist.h        |  4 +++-
 include/linux/plist.h        |  5 ++++-
 include/linux/rwsem.h        |  1 -
 include/linux/smp.h          |  1 -
 include/linux/spinlock.h     |  1 -
 include/media/media-entity.h |  3 ++-
 10 files changed, 64 insertions(+), 41 deletions(-)
 create mode 100644 include/linux/container_of.h

-- 
2.33.0