From: Eric Biggers <ebiggers@xxxxxxxxxx> Subject: fs/direct-io.c: include fs/internal.h for missing prototype Include fs/internal.h to address the following 'sparse' warning: fs/direct-io.c:591:5: warning: symbol 'sb_init_dio_done_wq' was not declared. Should it be static? Link: http://lkml.kernel.org/r/20191209234544.128302-1-ebiggers@xxxxxxxxxx Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx> Reviewed-by: Jan Kara <jack@xxxxxxx> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/direct-io.c | 2 ++ 1 file changed, 2 insertions(+) --- a/fs/direct-io.c~fs-direct-ioc-include-fs-internalh-for-missing-prototype +++ a/fs/direct-io.c @@ -39,6 +39,8 @@ #include <linux/atomic.h> #include <linux/prefetch.h> +#include "internal.h" + /* * How many user pages to map in one call to get_user_pages(). This determines * the size of a structure in the slab cache _