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Date: Tue, 17 May 2022 12:28:13 +0200
From: Miguel Ojeda <ojeda@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: rust-for-linux@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
Masahiro Yamada <masahiroy@...nel.org>,
Li Li <dualli@...gle.com>, linux-kernel@...r.kernel.org,
Miguel Ojeda <ojeda@...nel.org>,
Wedson Almeida Filho <wedsonaf@...gle.com>
Subject: [PATCH v2] binder: convert `BINDER_*` ioctl `#define`s into an `enum`
bindgen (a tool which generates the "raw" C bindings for Rust) only
works (so far) with "simple" C `#define`s. In order to avoid having
to manually maintain these constants in the (potential) Rust side,
this patch converts them into an `enum`.
There may be support in the future for expanding macros that end up in
a "numeric" one: https://github.com/rust-lang/rust-bindgen/issues/753.
Link: https://lore.kernel.org/lkml/YoIK2l6xbQMPGZHy@kroah.com/
Co-developed-by: Wedson Almeida Filho <wedsonaf@...gle.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@...gle.com>
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
---
v2:
- Rebased on top of Greg's char-misc-next.
- Added Link tag for future reference.
v1: https://lore.kernel.org/lkml/20220516100401.7639-1-ojeda@kernel.org/
include/uapi/linux/android/binder.h | 30 +++++++++++++++--------------
1 file changed, 16 insertions(+), 14 deletions(-)
diff --git a/include/uapi/linux/android/binder.h b/include/uapi/linux/android/binder.h
index e6ee8cae303b..a4c3e750168a 100644
--- a/include/uapi/linux/android/binder.h
+++ b/include/uapi/linux/android/binder.h
@@ -251,20 +251,22 @@ struct binder_extended_error {
__s32 param;
};
-#define BINDER_WRITE_READ _IOWR('b', 1, struct binder_write_read)
-#define BINDER_SET_IDLE_TIMEOUT _IOW('b', 3, __s64)
-#define BINDER_SET_MAX_THREADS _IOW('b', 5, __u32)
-#define BINDER_SET_IDLE_PRIORITY _IOW('b', 6, __s32)
-#define BINDER_SET_CONTEXT_MGR _IOW('b', 7, __s32)
-#define BINDER_THREAD_EXIT _IOW('b', 8, __s32)
-#define BINDER_VERSION _IOWR('b', 9, struct binder_version)
-#define BINDER_GET_NODE_DEBUG_INFO _IOWR('b', 11, struct binder_node_debug_info)
-#define BINDER_GET_NODE_INFO_FOR_REF _IOWR('b', 12, struct binder_node_info_for_ref)
-#define BINDER_SET_CONTEXT_MGR_EXT _IOW('b', 13, struct flat_binder_object)
-#define BINDER_FREEZE _IOW('b', 14, struct binder_freeze_info)
-#define BINDER_GET_FROZEN_INFO _IOWR('b', 15, struct binder_frozen_status_info)
-#define BINDER_ENABLE_ONEWAY_SPAM_DETECTION _IOW('b', 16, __u32)
-#define BINDER_GET_EXTENDED_ERROR _IOWR('b', 17, struct binder_extended_error)
+enum {
+ BINDER_WRITE_READ = _IOWR('b', 1, struct binder_write_read),
+ BINDER_SET_IDLE_TIMEOUT = _IOW('b', 3, __s64),
+ BINDER_SET_MAX_THREADS = _IOW('b', 5, __u32),
+ BINDER_SET_IDLE_PRIORITY = _IOW('b', 6, __s32),
+ BINDER_SET_CONTEXT_MGR = _IOW('b', 7, __s32),
+ BINDER_THREAD_EXIT = _IOW('b', 8, __s32),
+ BINDER_VERSION = _IOWR('b', 9, struct binder_version),
+ BINDER_GET_NODE_DEBUG_INFO = _IOWR('b', 11, struct binder_node_debug_info),
+ BINDER_GET_NODE_INFO_FOR_REF = _IOWR('b', 12, struct binder_node_info_for_ref),
+ BINDER_SET_CONTEXT_MGR_EXT = _IOW('b', 13, struct flat_binder_object),
+ BINDER_FREEZE = _IOW('b', 14, struct binder_freeze_info),
+ BINDER_GET_FROZEN_INFO = _IOWR('b', 15, struct binder_frozen_status_info),
+ BINDER_ENABLE_ONEWAY_SPAM_DETECTION = _IOW('b', 16, __u32),
+ BINDER_GET_EXTENDED_ERROR = _IOWR('b', 17, struct binder_extended_error),
+};
/*
* NOTE: Two special error codes you should check for when calling
base-commit: 33a1c6618677fe33f8e84cb7bedc45abbce89a50
--
2.36.1
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