diff mbox

build: Added missing READ_ONCE

Message ID 1512778749-12452-1-git-send-email-jasmin@anw.at (mailing list archive)
State New, archived
Headers show

Commit Message

Jasmin J. Dec. 9, 2017, 12:19 a.m. UTC 
From: Jasmin Jessich <jasmin@anw.at>

Signed-off-by: Jasmin Jessich <jasmin@anw.at>
---
 v4l/compat.h                      | 5 +++++
 v4l/scripts/make_config_compat.pl | 1 +
 2 files changed, 6 insertions(+)
diff mbox

Patch

diff --git a/v4l/compat.h b/v4l/compat.h
index 89deae1..fba7a99 100644
--- a/v4l/compat.h
+++ b/v4l/compat.h
@@ -2275,4 +2275,9 @@  static inline bool fwnode_device_is_available(struct fwnode_handle *fwnode)
         setup_timer_on_stack((timer), (callback), (flags))
 #endif
 
+#ifdef NEED_READ_ONCE
+#define READ_ONCE(x)  ACCESS_ONCE(x)
+#endif
+
+
 #endif /*  _COMPAT_H */
diff --git a/v4l/scripts/make_config_compat.pl b/v4l/scripts/make_config_compat.pl
index 3b073ac..4a178dd 100644
--- a/v4l/scripts/make_config_compat.pl
+++ b/v4l/scripts/make_config_compat.pl
@@ -712,6 +712,7 @@  sub check_other_dependencies()
 	check_files_for_func("fwnode_for_each_child_node", "NEED_FWNODE_FOR_EACH_CHILD_NODE", "include/linux/property.h");
 	check_files_for_func("fwnode_graph_get_port_parent", "NEED_FWNODE_GRAPH_GET_PORT_PARENT", "include/linux/property.h");
 	check_files_for_func("timer_setup_on_stack", "NEED_TIMER_SETUP_ON_STACK", "include/linux/timer.h");
+	check_files_for_func("READ_ONCE", "NEED_READ_ONCE", "include/linux/compiler.h");
 
 	# For tests for uapi-dependent logic
 	check_files_for_func_uapi("usb_endpoint_maxp", "NEED_USB_ENDPOINT_MAXP", "usb/ch9.h");