struct perf_data in util/data.h uses "u64" data type, which is defined in
"linux/types.h". If only include util/data.h, following compilation error
occur:

util/data.h:38:3: error: unknown type name ‘u64’
   u64    version;
   ^~~

Solution: include "linux/types.h." to resolve self-contained issues

Fixes: 258031c017c35 (perf header: Add DIR_FORMAT feature to describe directory data)
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
---
 tools/perf/util/data.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h
index c9de82af5584..1402d9657ef2 100644
--- a/tools/perf/util/data.h
+++ b/tools/perf/util/data.h
@@ -4,6 +4,7 @@
 
 #include <stdio.h>
 #include <stdbool.h>
+#include <linux/types.h>
 
 enum perf_data_mode {
 	PERF_DATA_MODE_WRITE,
-- 
2.30.GIT

Em Fri, Apr 29, 2022 at 05:05:39PM +0800, Yang Jihong escreveu:
> struct perf_data in util/data.h uses "u64" data type, which is defined in
> "linux/types.h". If only include util/data.h, following compilation error
> occur:
> 
> util/data.h:38:3: error: unknown type name ‘u64’
>    u64    version;
>    ^~~
> 
> Solution: include "linux/types.h." to resolve self-contained issues

Thanks, applied.

- Arnaldo

 
> Fixes: 258031c017c35 (perf header: Add DIR_FORMAT feature to describe directory data)
> Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
> ---
>  tools/perf/util/data.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h
> index c9de82af5584..1402d9657ef2 100644
> --- a/tools/perf/util/data.h
> +++ b/tools/perf/util/data.h
> @@ -4,6 +4,7 @@
>  
>  #include <stdio.h>
>  #include <stdbool.h>
> +#include <linux/types.h>
>  
>  enum perf_data_mode {
>  	PERF_DATA_MODE_WRITE,
> -- 
> 2.30.GIT

-- 

- Arnaldo