media: staging: media: atomisp: use kvmalloc/kvzalloc

Use kvmalloc()/kvzalloc() instead of atomisp_kernel_malloc()
/atomisp_kernel_zalloc().
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c

@@ -82,35 +82,6 @@ union host {
 	} ptr;
 };
 
-/*
- * atomisp_kernel_malloc: chooses whether kmalloc() or vmalloc() is preferable.
- *
- * It is also a wrap functions to pass into css framework.
- */
-void *atomisp_kernel_malloc(size_t bytes)
-{
-	/* vmalloc() is preferable if allocating more than 1 page */
-	if (bytes > PAGE_SIZE)
-		return vmalloc(bytes);
-
-	return kmalloc(bytes, GFP_KERNEL);
-}
-
-/*
- * atomisp_kernel_zalloc: chooses whether set 0 to the allocated memory.
- *
- * It is also a wrap functions to pass into css framework.
- */
-void *atomisp_kernel_zalloc(size_t bytes, bool zero_mem)
-{
-	void *ptr = atomisp_kernel_malloc(bytes);
-
-	if (ptr && zero_mem)
-		memset(ptr, 0, bytes);
-
-	return ptr;
-}
-
 /*
  * get sensor:dis71430/ov2720 related info from v4l2_subdev->priv data field.
  * subdev->priv is set in mrst.c
@@ -4316,7 +4287,7 @@ int atomisp_set_parameters(struct video_device *vdev,
 		 * are ready, the parameters will be set to CSS.
 		 * per-frame setting only works for the main output frame.
 		 */
-		param = atomisp_kernel_zalloc(sizeof(*param), true);
+		param = kvzalloc(sizeof(*param), GFP_KERNEL);
 		if (!param) {
 			dev_err(asd->isp->dev, "%s: failed to alloc params buffer\n",
 				__func__);

drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.h

@@ -78,8 +78,6 @@ static inline void __iomem *atomisp_get_io_virt_addr(unsigned int address)
 	return ret;
 }
 */
-void *atomisp_kernel_malloc(size_t bytes);
-void *atomisp_kernel_zalloc(size_t bytes, bool zero_mem);
 
 /*
  * Interrupt functions

drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c

@@ -1671,9 +1671,9 @@ int atomisp_alloc_metadata_output_buf(struct atomisp_sub_device *asd)
 	/* We allocate the cpu-side buffer used for communication with user
 	 * space */
 	for (i = 0; i < ATOMISP_METADATA_TYPE_NUM; i++) {
-		asd->params.metadata_user[i] = atomisp_kernel_malloc(
+		asd->params.metadata_user[i] = kvmalloc(
 				asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].
-				stream_info.metadata_info.size);
+				stream_info.metadata_info.size, GFP_KERNEL);
 		if (!asd->params.metadata_user[i]) {
 			while (--i >= 0) {
 				kvfree(asd->params.metadata_user[i]);

drivers/staging/media/atomisp/pci/atomisp2/atomisp_internal.h

@@ -301,8 +301,6 @@ struct atomisp_device {
 
 extern struct device *atomisp_dev;
 
-extern void *atomisp_kernel_malloc(size_t bytes);
-
 #define atomisp_is_wdt_running(a) timer_pending(&(a)->wdt)
 #ifdef ISP2401
 extern void atomisp_wdt_refresh_pipe(struct atomisp_video_pipe *pipe,