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authorPantelis Antoniou <pantelis.antoniou@konsulko.com>2014-07-04 19:58:49 +0300
committerMark Brown <broonie@kernel.org>2015-02-20 23:41:12 +0900
commit33ef56d1b95d9b628f9ed78c34d40b746668855e (patch)
tree3315e525a45650f9a9bd8eca44a31711f7ea9ceb /drivers/of/of_private.h
parenta39492cbb90cebc0c1cb55d95e913848f6d68109 (diff)
downloadlinux-linaro-stable-33ef56d1b95d9b628f9ed78c34d40b746668855e.tar.gz
of: Transactional DT support.
Introducing DT transactional support. A DT transaction is a method which allows one to apply changes in the live tree, in such a way that either the full set of changes take effect, or the state of the tree can be rolled-back to the state it was before it was attempted. An applied transaction can be rolled-back at any time. Documentation is in Documentation/devicetree/changesets.txt Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> [glikely: Removed device notifiers and reworked to be more consistent] Signed-off-by: Grant Likely <grant.likely@linaro.org> (cherry picked from commit 201c910bd6898d81d4ac6685d0f421b7e10f3c5d) Signed-off-by: Mark Brown <broonie@kernel.org> Conflicts: include/linux/of.h
Diffstat (limited to 'drivers/of/of_private.h')
-rw-r--r--drivers/of/of_private.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h
index f69ccb1fa308..858e0a5d9a11 100644
--- a/drivers/of/of_private.h
+++ b/drivers/of/of_private.h
@@ -81,4 +81,13 @@ extern int __of_attach_node_sysfs(struct device_node *np);
extern void __of_detach_node(struct device_node *np);
extern void __of_detach_node_sysfs(struct device_node *np);
+/* iterators for transactions, used for overlays */
+/* forward iterator */
+#define for_each_transaction_entry(_oft, _te) \
+ list_for_each_entry(_te, &(_oft)->te_list, node)
+
+/* reverse iterator */
+#define for_each_transaction_entry_reverse(_oft, _te) \
+ list_for_each_entry_reverse(_te, &(_oft)->te_list, node)
+
#endif /* _LINUX_OF_PRIVATE_H */