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Date:   Thu, 23 Sep 2021 18:47:37 +0200
From:   Sebastian Andrzej Siewior <>
Cc:     Dmitry Vyukov <>,
        Andrey Konovalov <>,
        Thomas Gleixner <>,
        Steven Rostedt <>,
        Marco Elver <>,
        Clark Williams <>,
        Andrew Morton <>,
        Sebastian Andrzej Siewior <>
Subject: [PATCH v2 1/5] Documentation/kcov: Include types.h in the example.

The first example code has includes at the top, the following two
example share that part. The last example (remote coverage collection)
requires the linux/types.h header file due its __aligned_u64 usage.

Add the linux/types.h to the top most example and a comment that the
header files from above are required as it is done in the second

Signed-off-by: Sebastian Andrzej Siewior <>
Acked-by: Dmitry Vyukov <>
Acked-by: Marco Elver <>
Tested-by: Marco Elver <>
 Documentation/dev-tools/kcov.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/dev-tools/kcov.rst b/Documentation/dev-tools/kcov.rst
index d2c4c27e1702d..347f3b6de8d40 100644
--- a/Documentation/dev-tools/kcov.rst
+++ b/Documentation/dev-tools/kcov.rst
@@ -50,6 +50,7 @@ The following program demonstrates coverage collection from within a test
     #include <sys/mman.h>
     #include <unistd.h>
     #include <fcntl.h>
+    #include <linux/types.h>
     #define KCOV_INIT_TRACE			_IOR('c', 1, unsigned long)
     #define KCOV_ENABLE			_IO('c', 100)
@@ -251,6 +252,8 @@ selectively from different subsystems.
 .. code-block:: c
+    /* Same includes and defines as above. */
     struct kcov_remote_arg {
 	__u32		trace_mode;
 	__u32		area_size;

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