video: adf: remove PAGE_SIZE from userspace-facing header

Systems may define PAGE_SIZE in userspace limits.h but don't have to.
PAGE_SIZE was picked as an arbitrary "reasonable" limit so just use 4096
instead.

Change-Id: I9555e39aba64a3a70f61eb6ded2a4129ab236ce0
Signed-off-by: Greg Hackmann <ghackmann@google.com>

diff --git a/include/uapi/video/adf.h b/include/uapi/video/adf.h
index 2ba345ca458b15d8f19c59cf29df40421bd66570..73cb936e0da92abbad4540d9868b56c66a1b247d 100644 (file)
--- a/include/uapi/video/adf.h
+++ b/include/uapi/video/adf.h
@@ -22,7 +22,7 @@
 #include <drm/drm_mode.h>
 
 #define ADF_NAME_LEN 32
-#define ADF_MAX_CUSTOM_DATA_SIZE PAGE_SIZE
+#define ADF_MAX_CUSTOM_DATA_SIZE 4096
 
 enum adf_interface_type {
        ADF_INTF_DSI = 0,
@@ -126,7 +126,7 @@ struct adf_buffer_config {
 
        __s64 acquire_fence;
 };
-#define ADF_MAX_BUFFERS (PAGE_SIZE / sizeof(struct adf_buffer_config))
+#define ADF_MAX_BUFFERS (4096 / sizeof(struct adf_buffer_config))
 
 /**
  * struct adf_post_config - request to flip to a new set of buffers
@@ -152,7 +152,7 @@ struct adf_post_config {
 
        __s64 complete_fence;
 };
-#define ADF_MAX_INTERFACES (PAGE_SIZE / sizeof(__u32))
+#define ADF_MAX_INTERFACES (4096 / sizeof(__u32))
 
 /**
  * struct adf_simple_buffer_allocate - request to allocate a "simple" buffer
@@ -233,7 +233,7 @@ struct adf_device_data {
        size_t custom_data_size;
        void __user *custom_data;
 };
-#define ADF_MAX_ATTACHMENTS (PAGE_SIZE / sizeof(struct adf_attachment))
+#define ADF_MAX_ATTACHMENTS (4096 / sizeof(struct adf_attachment))
 
 /**
  * struct adf_device_data - describes a display interface
@@ -273,7 +273,7 @@ struct adf_interface_data {
        size_t custom_data_size;
        void __user *custom_data;
 };
-#define ADF_MAX_MODES (PAGE_SIZE / sizeof(struct drm_mode_modeinfo))
+#define ADF_MAX_MODES (4096 / sizeof(struct drm_mode_modeinfo))
 
 /**
  * struct adf_overlay_engine_data - describes an overlay engine
@@ -293,7 +293,7 @@ struct adf_overlay_engine_data {
        size_t custom_data_size;
        void __user *custom_data;
 };
-#define ADF_MAX_SUPPORTED_FORMATS (PAGE_SIZE / sizeof(__u32))
+#define ADF_MAX_SUPPORTED_FORMATS (4096 / sizeof(__u32))
 
 #define ADF_SET_EVENT          _IOW('D', 0, struct adf_set_event)
 #define ADF_BLANK              _IOW('D', 1, __u8)