linux-kernel - [RFC PATCH 01/12] staging: android: ion: Remove dmap

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Message-Id: <1488491084-17252-2-git-send-email-labbott@redhat.com>
Date:   Thu,  2 Mar 2017 13:44:33 -0800
From:   Laura Abbott <labbott@...hat.com>
To:     Sumit Semwal <sumit.semwal@...aro.org>,
        Riley Andrews <riandrews@...roid.com>, arve@...roid.com
Cc:     Laura Abbott <labbott@...hat.com>, romlem@...gle.com,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        linaro-mm-sig@...ts.linaro.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        Brian Starkey <brian.starkey@....com>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Mark Brown <broonie@...nel.org>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        linux-mm@...ck.org
Subject: [RFC PATCH 01/12] staging: android: ion: Remove dmap_cnt



The reference counting of dma_map calls was removed. Remove the
associated counter field as well.

Signed-off-by: Laura Abbott <labbott@...hat.com>
---
 drivers/staging/android/ion/ion_priv.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/staging/android/ion/ion_priv.h b/drivers/staging/android/ion/ion_priv.h
index 5b3059c..46d3ff5 100644
--- a/drivers/staging/android/ion/ion_priv.h
+++ b/drivers/staging/android/ion/ion_priv.h
@@ -44,7 +44,6 @@
  * @lock:		protects the buffers cnt fields
  * @kmap_cnt:		number of times the buffer is mapped to the kernel
  * @vaddr:		the kernel mapping if kmap_cnt is not zero
- * @dmap_cnt:		number of times the buffer is mapped for dma
  * @sg_table:		the sg table for the buffer if dmap_cnt is not zero
  * @pages:		flat array of pages in the buffer -- used by fault
  *			handler and only valid for buffers that are faulted in
@@ -70,7 +69,6 @@ struct ion_buffer {
 	struct mutex lock;
 	int kmap_cnt;
 	void *vaddr;
-	int dmap_cnt;
 	struct sg_table *sg_table;
 	struct page **pages;
 	struct list_head vmas;
-- 
2.7.4