linux-kernel - [RFC v4 7/8] binder: use __kernel_pid_t and __kernel_uid

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Date:   Mon, 28 Mar 2022 03:59:46 +0000
From:   "T.J. Mercier" <tjmercier@...gle.com>
To:     tjmercier@...gle.com, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Jonathan Corbet <corbet@....net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Arve Hjønnevåg" <arve@...roid.com>,
        Todd Kjos <tkjos@...roid.com>,
        Martijn Coenen <maco@...roid.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Christian Brauner <brauner@...nel.org>,
        Hridya Valsaraju <hridya@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        "Christian König" <christian.koenig@....com>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Liam Mark <lmark@...eaurora.org>,
        Laura Abbott <labbott@...hat.com>,
        Brian Starkey <Brian.Starkey@....com>,
        John Stultz <john.stultz@...aro.org>,
        Tejun Heo <tj@...nel.org>, Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Shuah Khan <shuah@...nel.org>
Cc:     kaleshsingh@...gle.com, Kenny.Ho@....com, mkoutny@...e.com,
        skhan@...uxfoundation.org, dri-devel@...ts.freedesktop.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
        cgroups@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [RFC v4 7/8] binder: use __kernel_pid_t and __kernel_uid_t for userspace

The kernel interface should use types that the kernel defines instead of
pid_t and uid_t, whose definiton is owned by libc. This fixes the header
so that it can be included without first including sys/types.h.

Signed-off-by: T.J. Mercier <tjmercier@...gle.com>
---
 include/uapi/linux/android/binder.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/android/binder.h b/include/uapi/linux/android/binder.h
index 169fd5069a1a..aa28454dbca3 100644
--- a/include/uapi/linux/android/binder.h
+++ b/include/uapi/linux/android/binder.h
@@ -289,8 +289,8 @@ struct binder_transaction_data {
 
 	/* General information about the transaction. */
 	__u32	        flags;
-	pid_t		sender_pid;
-	uid_t		sender_euid;
+	__kernel_pid_t	sender_pid;
+	__kernel_uid_t	sender_euid;
 	binder_size_t	data_size;	/* number of bytes of data */
 	binder_size_t	offsets_size;	/* number of bytes of offsets */
 
-- 
2.35.1.1021.g381101b075-goog