Include <linux/proc_fs.h> for the definition of open_related_ns. Fixes the following sparse warning: fs/nsfs.c:145:5: warning: symbol 'open_related_ns' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx> --- Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: linux-fsdevel@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx --- fs/nsfs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/nsfs.c b/fs/nsfs.c index ea384d0f225a..3e1c6ce9deae 100644 --- a/fs/nsfs.c +++ b/fs/nsfs.c @@ -4,6 +4,7 @@ #include <linux/file.h> #include <linux/fs.h> #include <linux/proc_ns.h> +#include <linux/proc_fs.h> #include <linux/magic.h> #include <linux/ktime.h> #include <linux/seq_file.h> -- 2.23.0