From: Colin Cross <ccross@android.com>
Date: Tue, 12 Nov 2013 23:28:08 +0000 (-0800)
Subject: ion: convert sg_dma_len(sg) to sg->length
X-Git-Tag: firefly_0821_release~4090^2~468
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c1d3cea1d0b985a78a87675a07c2dab865a416f1;p=firefly-linux-kernel-4.4.55.git

ion: convert sg_dma_len(sg) to sg->length

ion is always dealing with the allocation and not the mapping,
so it should always be using sg->length and not sg->dma_length.

Change-Id: Id9b07f1196b2bafe04636fa1aa46dfc84d003cf0
Signed-off-by: Colin Cross <ccross@android.com>
---

diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index 38e3d6ff3a3e..4d19716cabd2 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -224,7 +224,7 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap,
 		for_each_sg(table->sgl, sg, table->nents, i) {
 			struct page *page = sg_page(sg);
 
-			for (j = 0; j < sg_dma_len(sg) / PAGE_SIZE; j++)
+			for (j = 0; j < sg->length / PAGE_SIZE; j++)
 				buffer->pages[k++] = page++;
 		}
 
diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
index c16350e9ffcc..19e13ecaa1c1 100644
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ b/drivers/staging/android/ion/ion_chunk_heap.c
@@ -84,7 +84,7 @@ err:
 	sg = table->sgl;
 	for (i -= 1; i >= 0; i--) {
 		gen_pool_free(chunk_heap->pool, page_to_phys(sg_page(sg)),
-			      sg_dma_len(sg));
+			      sg->length);
 		sg = sg_next(sg);
 	}
 	sg_free_table(table);
@@ -112,7 +112,7 @@ static void ion_chunk_heap_free(struct ion_buffer *buffer)
 
 	for_each_sg(table->sgl, sg, table->nents, i) {
 		gen_pool_free(chunk_heap->pool, page_to_phys(sg_page(sg)),
-			      sg_dma_len(sg));
+			      sg->length);
 	}
 	chunk_heap->allocated -= allocated_size;
 	sg_free_table(table);
diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c
index 9be246f50a01..f32f4e69765a 100644
--- a/drivers/staging/android/ion/ion_heap.c
+++ b/drivers/staging/android/ion/ion_heap.c
@@ -46,7 +46,7 @@ void *ion_heap_map_kernel(struct ion_heap *heap,
 		pgprot = pgprot_writecombine(PAGE_KERNEL);
 
 	for_each_sg(table->sgl, sg, table->nents, i) {
-		int npages_this_entry = PAGE_ALIGN(sg_dma_len(sg)) / PAGE_SIZE;
+		int npages_this_entry = PAGE_ALIGN(sg->length) / PAGE_SIZE;
 		struct page *page = sg_page(sg);
 		BUG_ON(i >= npages);
 		for (j = 0; j < npages_this_entry; j++) {
@@ -80,14 +80,14 @@ int ion_heap_map_user(struct ion_heap *heap, struct ion_buffer *buffer,
 	for_each_sg(table->sgl, sg, table->nents, i) {
 		struct page *page = sg_page(sg);
 		unsigned long remainder = vma->vm_end - addr;
-		unsigned long len = sg_dma_len(sg);
+		unsigned long len = sg->length;
 
-		if (offset >= sg_dma_len(sg)) {
-			offset -= sg_dma_len(sg);
+		if (offset >= sg->length) {
+			offset -= sg->length;
 			continue;
 		} else if (offset) {
 			page += offset / PAGE_SIZE;
-			len = sg_dma_len(sg) - offset;
+			len = sg->length - offset;
 			offset = 0;
 		}
 		len = min(len, remainder);
@@ -119,7 +119,7 @@ int ion_heap_buffer_zero(struct ion_buffer *buffer)
 
 	for_each_sg(table->sgl, sg, table->nents, i) {
 		struct page *page = sg_page(sg);
-		unsigned long len = sg_dma_len(sg);
+		unsigned long len = sg->length;
 
 		for (j = 0; j < len / PAGE_SIZE; j++) {
 			struct page *sub_page = page + j;
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
index 90b2e04157ca..ecae16f2109a 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -209,7 +209,7 @@ void ion_system_heap_free(struct ion_buffer *buffer)
 
 	for_each_sg(table->sgl, sg, table->nents, i)
 		free_buffer_page(sys_heap, buffer, sg_page(sg),
-				get_order(sg_dma_len(sg)));
+				get_order(sg->length));
 	sg_free_table(table);
 	kfree(table);
 }