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From: labbott@redhat.com (Laura Abbott)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv3 04/22] staging: android: ion: Remove alignment from allocation field
Date: Mon,  3 Apr 2017 11:57:46 -0700	[thread overview]
Message-ID: <1491245884-15852-5-git-send-email-labbott@redhat.com> (raw)
In-Reply-To: <1491245884-15852-1-git-send-email-labbott@redhat.com>

The align field was supposed to be used to specify the alignment of
the allocation. Nobody actually does anything with it except to check
if the alignment specified is out of bounds. Since this has no effect
on the actual allocation, just remove it.

Signed-off-by: Laura Abbott <labbott@redhat.com>
---
 drivers/staging/android/ion/ion-ioctl.c         |  1 -
 drivers/staging/android/ion/ion.c               | 14 ++++++--------
 drivers/staging/android/ion/ion.h               |  5 +----
 drivers/staging/android/ion/ion_carveout_heap.c | 10 +++-------
 drivers/staging/android/ion/ion_chunk_heap.c    |  9 +++------
 drivers/staging/android/ion/ion_cma_heap.c      |  5 +----
 drivers/staging/android/ion/ion_priv.h          |  2 +-
 drivers/staging/android/ion/ion_system_heap.c   |  9 +--------
 8 files changed, 16 insertions(+), 39 deletions(-)

diff --git a/drivers/staging/android/ion/ion-ioctl.c b/drivers/staging/android/ion/ion-ioctl.c
index 9ff815a..5b2e93f 100644
--- a/drivers/staging/android/ion/ion-ioctl.c
+++ b/drivers/staging/android/ion/ion-ioctl.c
@@ -95,7 +95,6 @@ long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		struct ion_handle *handle;
 
 		handle = ion_alloc(client, data.allocation.len,
-						data.allocation.align,
 						data.allocation.heap_id_mask,
 						data.allocation.flags);
 		if (IS_ERR(handle))
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index f45115f..c2adfe1 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -103,7 +103,6 @@ static void ion_buffer_add(struct ion_device *dev,
 static struct ion_buffer *ion_buffer_create(struct ion_heap *heap,
 					    struct ion_device *dev,
 					    unsigned long len,
-					    unsigned long align,
 					    unsigned long flags)
 {
 	struct ion_buffer *buffer;
@@ -119,15 +118,14 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap,
 	buffer->flags = flags;
 	kref_init(&buffer->ref);
 
-	ret = heap->ops->allocate(heap, buffer, len, align, flags);
+	ret = heap->ops->allocate(heap, buffer, len, flags);
 
 	if (ret) {
 		if (!(heap->flags & ION_HEAP_FLAG_DEFER_FREE))
 			goto err2;
 
 		ion_heap_freelist_drain(heap, 0);
-		ret = heap->ops->allocate(heap, buffer, len, align,
-					  flags);
+		ret = heap->ops->allocate(heap, buffer, len, flags);
 		if (ret)
 			goto err2;
 	}
@@ -401,7 +399,7 @@ static int ion_handle_add(struct ion_client *client, struct ion_handle *handle)
 }
 
 struct ion_handle *ion_alloc(struct ion_client *client, size_t len,
-			     size_t align, unsigned int heap_id_mask,
+			     unsigned int heap_id_mask,
 			     unsigned int flags)
 {
 	struct ion_handle *handle;
@@ -410,8 +408,8 @@ struct ion_handle *ion_alloc(struct ion_client *client, size_t len,
 	struct ion_heap *heap;
 	int ret;
 
-	pr_debug("%s: len %zu align %zu heap_id_mask %u flags %x\n", __func__,
-		 len, align, heap_id_mask, flags);
+	pr_debug("%s: len %zu heap_id_mask %u flags %x\n", __func__,
+		 len, heap_id_mask, flags);
 	/*
 	 * traverse the list of heaps available in this system in priority
 	 * order.  If the heap type is supported by the client, and matches the
@@ -428,7 +426,7 @@ struct ion_handle *ion_alloc(struct ion_client *client, size_t len,
 		/* if the caller didn't specify this heap id */
 		if (!((1 << heap->id) & heap_id_mask))
 			continue;
-		buffer = ion_buffer_create(heap, dev, len, align, flags);
+		buffer = ion_buffer_create(heap, dev, len, flags);
 		if (!IS_ERR(buffer))
 			break;
 	}
diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h
index 93dafb4..3b4bff5 100644
--- a/drivers/staging/android/ion/ion.h
+++ b/drivers/staging/android/ion/ion.h
@@ -45,7 +45,6 @@ struct ion_buffer;
  * @name:	used for debug purposes
  * @base:	base address of heap in physical memory if applicable
  * @size:	size of the heap in bytes if applicable
- * @align:	required alignment in physical memory if applicable
  * @priv:	private info passed from the board file
  *
  * Provided by the board file.
@@ -93,8 +92,6 @@ void ion_client_destroy(struct ion_client *client);
  * ion_alloc - allocate ion memory
  * @client:		the client
  * @len:		size of the allocation
- * @align:		requested allocation alignment, lots of hardware blocks
- *			have alignment requirements of some kind
  * @heap_id_mask:	mask of heaps to allocate from, if multiple bits are set
  *			heaps will be tried in order from highest to lowest
  *			id
@@ -106,7 +103,7 @@ void ion_client_destroy(struct ion_client *client);
  * an opaque handle to it.
  */
 struct ion_handle *ion_alloc(struct ion_client *client, size_t len,
-			     size_t align, unsigned int heap_id_mask,
+			     unsigned int heap_id_mask,
 			     unsigned int flags);
 
 /**
diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c
index a8ea973..9bf8e98 100644
--- a/drivers/staging/android/ion/ion_carveout_heap.c
+++ b/drivers/staging/android/ion/ion_carveout_heap.c
@@ -34,8 +34,7 @@ struct ion_carveout_heap {
 };
 
 static ion_phys_addr_t ion_carveout_allocate(struct ion_heap *heap,
-					     unsigned long size,
-					     unsigned long align)
+					     unsigned long size)
 {
 	struct ion_carveout_heap *carveout_heap =
 		container_of(heap, struct ion_carveout_heap, heap);
@@ -60,16 +59,13 @@ static void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr,
 
 static int ion_carveout_heap_allocate(struct ion_heap *heap,
 				      struct ion_buffer *buffer,
-				      unsigned long size, unsigned long align,
+				      unsigned long size,
 				      unsigned long flags)
 {
 	struct sg_table *table;
 	ion_phys_addr_t paddr;
 	int ret;
 
-	if (align > PAGE_SIZE)
-		return -EINVAL;
-
 	table = kmalloc(sizeof(*table), GFP_KERNEL);
 	if (!table)
 		return -ENOMEM;
@@ -77,7 +73,7 @@ static int ion_carveout_heap_allocate(struct ion_heap *heap,
 	if (ret)
 		goto err_free;
 
-	paddr = ion_carveout_allocate(heap, size, align);
+	paddr = ion_carveout_allocate(heap, size);
 	if (paddr == ION_CARVEOUT_ALLOCATE_FAIL) {
 		ret = -ENOMEM;
 		goto err_free_table;
diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
index 70495dc..8c41889 100644
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ b/drivers/staging/android/ion/ion_chunk_heap.c
@@ -35,7 +35,7 @@ struct ion_chunk_heap {
 
 static int ion_chunk_heap_allocate(struct ion_heap *heap,
 				   struct ion_buffer *buffer,
-				   unsigned long size, unsigned long align,
+				   unsigned long size,
 				   unsigned long flags)
 {
 	struct ion_chunk_heap *chunk_heap =
@@ -46,9 +46,6 @@ static int ion_chunk_heap_allocate(struct ion_heap *heap,
 	unsigned long num_chunks;
 	unsigned long allocated_size;
 
-	if (align > chunk_heap->chunk_size)
-		return -EINVAL;
-
 	allocated_size = ALIGN(size, chunk_heap->chunk_size);
 	num_chunks = allocated_size / chunk_heap->chunk_size;
 
@@ -160,8 +157,8 @@ struct ion_heap *ion_chunk_heap_create(struct ion_platform_heap *heap_data)
 	chunk_heap->heap.ops = &chunk_heap_ops;
 	chunk_heap->heap.type = ION_HEAP_TYPE_CHUNK;
 	chunk_heap->heap.flags = ION_HEAP_FLAG_DEFER_FREE;
-	pr_debug("%s: base %lu size %zu align %ld\n", __func__,
-		 chunk_heap->base, heap_data->size, heap_data->align);
+	pr_debug("%s: base %lu size %zu \n", __func__,
+		 chunk_heap->base, heap_data->size);
 
 	return &chunk_heap->heap;
 
diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c
index 6c40685..d562fd7 100644
--- a/drivers/staging/android/ion/ion_cma_heap.c
+++ b/drivers/staging/android/ion/ion_cma_heap.c
@@ -40,7 +40,7 @@ struct ion_cma_buffer_info {
 
 /* ION CMA heap operations functions */
 static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer,
-			    unsigned long len, unsigned long align,
+			    unsigned long len,
 			    unsigned long flags)
 {
 	struct ion_cma_heap *cma_heap = to_cma_heap(heap);
@@ -52,9 +52,6 @@ static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer,
 	if (buffer->flags & ION_FLAG_CACHED)
 		return -EINVAL;
 
-	if (align > PAGE_SIZE)
-		return -EINVAL;
-
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
diff --git a/drivers/staging/android/ion/ion_priv.h b/drivers/staging/android/ion/ion_priv.h
index 46d3ff5..b09bc7c 100644
--- a/drivers/staging/android/ion/ion_priv.h
+++ b/drivers/staging/android/ion/ion_priv.h
@@ -172,7 +172,7 @@ struct ion_handle {
 struct ion_heap_ops {
 	int (*allocate)(struct ion_heap *heap,
 			struct ion_buffer *buffer, unsigned long len,
-			unsigned long align, unsigned long flags);
+			unsigned long flags);
 	void (*free)(struct ion_buffer *buffer);
 	void * (*map_kernel)(struct ion_heap *heap, struct ion_buffer *buffer);
 	void (*unmap_kernel)(struct ion_heap *heap, struct ion_buffer *buffer);
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
index 3ebbb75..6cb2fe7 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -129,7 +129,7 @@ static struct page *alloc_largest_available(struct ion_system_heap *heap,
 
 static int ion_system_heap_allocate(struct ion_heap *heap,
 				    struct ion_buffer *buffer,
-				    unsigned long size, unsigned long align,
+				    unsigned long size,
 				    unsigned long flags)
 {
 	struct ion_system_heap *sys_heap = container_of(heap,
@@ -143,9 +143,6 @@ static int ion_system_heap_allocate(struct ion_heap *heap,
 	unsigned long size_remaining = PAGE_ALIGN(size);
 	unsigned int max_order = orders[0];
 
-	if (align > PAGE_SIZE)
-		return -EINVAL;
-
 	if (size / PAGE_SIZE > totalram_pages / 2)
 		return -ENOMEM;
 
@@ -372,7 +369,6 @@ void ion_system_heap_destroy(struct ion_heap *heap)
 static int ion_system_contig_heap_allocate(struct ion_heap *heap,
 					   struct ion_buffer *buffer,
 					   unsigned long len,
-					   unsigned long align,
 					   unsigned long flags)
 {
 	int order = get_order(len);
@@ -381,9 +377,6 @@ static int ion_system_contig_heap_allocate(struct ion_heap *heap,
 	unsigned long i;
 	int ret;
 
-	if (align > (PAGE_SIZE << order))
-		return -EINVAL;
-
 	page = alloc_pages(low_order_gfp_flags, order);
 	if (!page)
 		return -ENOMEM;
-- 
2.7.4

  parent reply	other threads:[~2017-04-03 18:57 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-03 18:57 [PATCHv3 00/22] Ion clean up in preparation in moving out of staging Laura Abbott
2017-04-03 18:57 ` [PATCHv3 01/22] cma: Store a name in the cma structure Laura Abbott
2017-04-03 18:57 ` [PATCHv3 02/22] cma: Introduce cma_for_each_area Laura Abbott
2017-04-03 18:57 ` [PATCHv3 03/22] staging: android: ion: Remove dmap_cnt Laura Abbott
2017-04-03 18:57 ` Laura Abbott [this message]
2017-04-03 18:57 ` [PATCHv3 05/22] staging: android: ion: Duplicate sg_table Laura Abbott
2017-04-03 18:57 ` [PATCHv3 06/22] staging: android: ion: Call dma_map_sg for syncing and mapping Laura Abbott
2017-04-03 18:57 ` [PATCHv3 07/22] staging: android: ion: Remove page faulting support Laura Abbott
2017-04-11  6:00   ` Archit Taneja
2017-04-03 18:57 ` [PATCHv3 08/22] staging: android: ion: Remove crufty cache support Laura Abbott
2017-04-11  5:08   ` Archit Taneja
2017-04-03 18:57 ` [PATCHv3 09/22] staging: android: ion: Remove custom ioctl interface Laura Abbott
2017-04-03 18:57 ` [PATCHv3 10/22] staging: android: ion: Remove import interface Laura Abbott
2017-04-03 18:57 ` [PATCHv3 11/22] staging: android: ion: Remove duplicate ION_IOC_MAP Laura Abbott
2017-04-03 18:57 ` [PATCHv3 12/22] staging: android: ion: Remove old platform support Laura Abbott
2017-04-03 18:57 ` [PATCHv3 13/22] staging: android: ion: Use CMA APIs directly Laura Abbott
2017-04-11  6:47   ` Laurent Pinchart
2017-04-11 16:48     ` Laura Abbott
2017-04-18 14:07   ` Greg Kroah-Hartman
2017-04-03 18:57 ` [PATCHv3 14/22] staging: android: ion: Stop butchering the DMA address Laura Abbott
2017-04-03 18:57 ` [PATCHv3 15/22] staging: android: ion: Break the ABI in the name of forward progress Laura Abbott
2017-04-03 18:57 ` [PATCHv3 16/22] staging: android: ion: Get rid of ion_phys_addr_t Laura Abbott
2017-04-03 18:57 ` [PATCHv3 17/22] staging: android: ion: Collapse internal header files Laura Abbott
2017-04-08 18:12   ` Emil Velikov
2017-04-10 15:10     ` Laura Abbott
2017-04-03 18:58 ` [PATCHv3 18/22] staging: android: ion: Rework heap registration/enumeration Laura Abbott
2017-04-03 18:58 ` [PATCHv3 19/22] staging: android: ion: Drop ion_map_kernel interface Laura Abbott
2017-04-03 18:58 ` [PATCHv3 20/22] staging: android: ion: Remove ion_handle and ion_client Laura Abbott
2017-04-03 18:58 ` [PATCHv3 21/22] staging: android: ion: Set query return value Laura Abbott
2017-04-03 18:58 ` [PATCHv3 22/22] staging/android: Update Ion TODO list Laura Abbott
2017-04-08 10:38 ` [PATCHv3 00/22] Ion clean up in preparation in moving out of staging Greg Kroah-Hartman
2017-04-10 16:20   ` Laura Abbott
2017-04-10 16:25     ` Greg Kroah-Hartman
2017-04-10 17:20       ` Laura Abbott

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