The <linux/bug.h> was removed from radix-tree.h by the following commit: f5bba9d11a256ad2a1c2f8e7fc6aabe6416b7890.
Since that commit, tools/testing/radix-tree/ couldn't pass compilation due to: tools/testing/radix-tree/idr.c:17: undefined reference to WARN_ON_ONCE. This patch adds the bug.h header to idr.h to solve the issue. Signed-off-by: Wei Wang <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Jan Kara <[email protected]> Cc: Eric Biggers <[email protected]> Cc: Tejun Heo <[email protected]> Cc: Masahiro Yamada <[email protected]> --- include/linux/idr.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/idr.h b/include/linux/idr.h index 7c3a365..fa14f83 100644 --- a/include/linux/idr.h +++ b/include/linux/idr.h @@ -15,6 +15,7 @@ #include <linux/radix-tree.h> #include <linux/gfp.h> #include <linux/percpu.h> +#include <linux/bug.h> struct idr { struct radix_tree_root idr_rt; -- 2.7.4
