From d784ff4e9e6b9d564eaec646c4813448fd8b5cdf Mon Sep 17 00:00:00 2001
From: Jordan Crouse <jcrouse@codeaurora.org>
Date: Wed, 12 Oct 2011 17:05:19 -0600
Subject: [PATCH] gpu: ion:  Add inline stubs for Ion functions

Add inline stubs for in-kernel Ion functions to use when
Ion is not enabled in the kernel config.

Change-Id: Ic0dedbadbe4d7bab8f24763e67dd775c769b06df
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---
 include/linux/ion.h | 70 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 69 insertions(+), 1 deletion(-)

diff --git a/include/linux/ion.h b/include/linux/ion.h
index d48c5f35f5c..885917128c8 100644
--- a/include/linux/ion.h
+++ b/include/linux/ion.h
@@ -117,6 +117,8 @@ struct ion_platform_data {
 	struct ion_platform_heap heaps[];
 };
 
+#ifdef CONFIG_ION
+
 /**
  * ion_reserve() - reserve memory for ion heaps if applicable
  * @data:	platform data specifying starting physical address and
@@ -249,7 +251,6 @@ int ion_share_dma_buf(struct ion_client *client, struct ion_handle *handle);
  */
 struct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd);
 
-
 /**
  * ion_handle_get_flags - get the flags for a given handle
  *
@@ -263,6 +264,73 @@ struct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd);
 int ion_handle_get_flags(struct ion_client *client, struct ion_handle *handle,
 				unsigned long *flags);
 
+#else
+static inline void ion_reserve(struct ion_platform_data *data)
+{
+
+}
+
+static inline struct ion_client *ion_client_create(struct ion_device *dev,
+				     unsigned int heap_mask, const char *name)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline struct ion_client *msm_ion_client_create(unsigned int heap_mask,
+					const char *name)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline void ion_client_destroy(struct ion_client *client) { }
+
+static inline struct ion_handle *ion_alloc(struct ion_client *client,
+			size_t len, size_t align, unsigned int flags)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline void ion_free(struct ion_client *client,
+	struct ion_handle *handle) { }
+
+
+static inline int ion_phys(struct ion_client *client,
+	struct ion_handle *handle, ion_phys_addr_t *addr, size_t *len)
+{
+	return -ENODEV;
+}
+
+static inline struct sg_table *ion_sg_table(struct ion_client *client,
+			      struct ion_handle *handle)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline void *ion_map_kernel(struct ion_client *client,
+	struct ion_handle *handle, unsigned long flags)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline void ion_unmap_kernel(struct ion_client *client,
+	struct ion_handle *handle) { }
+
+static inline int ion_share_dma_buf(struct ion_client *client, struct ion_handle *handle)
+{
+	return -ENODEV;
+}
+
+static inline struct ion_handle *ion_import_dma_buf(struct ion_client *client, int fd)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline int ion_handle_get_flags(struct ion_client *client,
+	struct ion_handle *handle, unsigned long *flags)
+{
+	return -ENODEV;
+}
+#endif /* CONFIG_ION */
 #endif /* __KERNEL__ */
 
 /**