From 831e9da7dc5c22fd2a5fb64e999f6e077a4338c3 Mon Sep 17 00:00:00 2001 From: Tiago Vignatti Date: Tue, 22 Dec 2015 19:36:45 -0200 Subject: dma-buf: Remove range-based flush MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch removes range-based information used for optimizations in begin_cpu_access and end_cpu_access. We don't have any user nor implementation using range-based flush. It seems a consensus that if we ever want something like that again (or even more robust using 2D, 3D sub-range regions) we can use the upcoming dma-buf sync ioctl for such. Cc: Sumit Semwal Cc: Daniel Vetter Signed-off-by: Tiago Vignatti Reviewed-by: Stéphane Marchesin Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1450820214-12509-3-git-send-email-tiago.vignatti@intel.com --- drivers/staging/android/ion/ion.c | 6 ++---- drivers/staging/android/ion/ion_test.c | 4 ++-- 2 files changed, 4 insertions(+), 6 deletions(-) (limited to 'drivers/staging/android') diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index e237e9f3312d..0754a37c9674 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -1057,8 +1057,7 @@ static void ion_dma_buf_kunmap(struct dma_buf *dmabuf, unsigned long offset, { } -static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf, size_t start, - size_t len, +static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf, enum dma_data_direction direction) { struct ion_buffer *buffer = dmabuf->priv; @@ -1076,8 +1075,7 @@ static int ion_dma_buf_begin_cpu_access(struct dma_buf *dmabuf, size_t start, return PTR_ERR_OR_ZERO(vaddr); } -static void ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf, size_t start, - size_t len, +static void ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf, enum dma_data_direction direction) { struct ion_buffer *buffer = dmabuf->priv; diff --git a/drivers/staging/android/ion/ion_test.c b/drivers/staging/android/ion/ion_test.c index b8dcf5a26cc4..da34bc12cd7c 100644 --- a/drivers/staging/android/ion/ion_test.c +++ b/drivers/staging/android/ion/ion_test.c @@ -109,7 +109,7 @@ static int ion_handle_test_kernel(struct dma_buf *dma_buf, void __user *ptr, if (offset > dma_buf->size || size > dma_buf->size - offset) return -EINVAL; - ret = dma_buf_begin_cpu_access(dma_buf, offset, size, dir); + ret = dma_buf_begin_cpu_access(dma_buf, dir); if (ret) return ret; @@ -139,7 +139,7 @@ static int ion_handle_test_kernel(struct dma_buf *dma_buf, void __user *ptr, copy_offset = 0; } err: - dma_buf_end_cpu_access(dma_buf, offset, size, dir); + dma_buf_end_cpu_access(dma_buf, dir); return ret; } -- cgit v1.2.3