summaryrefslogtreecommitdiff
path: root/drivers/staging/memrar/memrar.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/memrar/memrar.h')
-rw-r--r--drivers/staging/memrar/memrar.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/staging/memrar/memrar.h b/drivers/staging/memrar/memrar.h
index 0b735b827c09..0feb73b94c91 100644
--- a/drivers/staging/memrar/memrar.h
+++ b/drivers/staging/memrar/memrar.h
@@ -95,6 +95,7 @@ struct RAR_buffer {
dma_addr_t bus_address;
};
+#if defined(CONFIG_MRST_RAR_HANDLER)
/**
* rar_reserve() - reserve RAR buffers
* @buffers: array of RAR_buffers where type and size of buffers to
@@ -149,7 +150,25 @@ extern size_t rar_release(struct RAR_buffer *buffers,
extern size_t rar_handle_to_bus(struct RAR_buffer *buffers,
size_t count);
+#else
+extern inline size_t rar_reserve(struct RAR_buffer *buffers, size_t count)
+{
+ return 0;
+}
+
+extern inline size_t rar_release(struct RAR_buffer *buffers, size_t count)
+{
+ return 0;
+}
+
+extern inline size_t rar_handle_to_bus(struct RAR_buffer *buffers,
+ size_t count)
+{
+ return 0;
+}
+
+#endif /* MRST_RAR_HANDLER */
#endif /* __KERNEL__ */
#endif /* _MEMRAR_H */