linux-kernel - [PATCH v2 0/2] staging: ion: get one device per heap

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Date:   Tue, 19 Sep 2017 12:25:36 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...aro.org>
To:     labbott@...hat.com, sumit.semwal@...aro.org,
        gregkh@...uxfoundation.org, arve@...roid.com,
        riandrews@...roid.com, broonie@...nel.org, dan.carpenter@...cle.com
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>
Subject: [PATCH v2 0/2] staging: ion: get one device per heap

version 2:
- simplify ioctl check like propose by Dan
- make sure that we don't register more than ION_DEV_MAX heaps

Instead a getting one common device "/dev/ion" for
all the heaps this patch allow to create one device
entry ("/dev/ionX") per heap.
Getting an entry per heap could allow to set security rules
per heap and global ones for all heaps.

Allocation requests will be only allowed if the mask_id
match with device minor.
Query request could be done on any of the devices.

Benjamin Gaignard (2):
  staging: ion: simplify ioctl args checking function
  staging: ion: create one device entry per heap

 drivers/staging/android/ion/ion-ioctl.c | 20 +++++++++++++-------
 drivers/staging/android/ion/ion.c       | 23 +++++++++++++++++------
 drivers/staging/android/ion/ion.h       | 10 +++++++---
 3 files changed, 37 insertions(+), 16 deletions(-)

-- 
2.7.4