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Message-Id: <20200813153254.93731-2-sgarzare@redhat.com> Date: Thu, 13 Aug 2020 17:32:52 +0200 From: Stefano Garzarella <sgarzare@...hat.com> To: Jens Axboe <axboe@...nel.dk> Cc: Christian Brauner <christian.brauner@...ntu.com>, Jann Horn <jannh@...gle.com>, Jeff Moyer <jmoyer@...hat.com>, linux-fsdevel@...r.kernel.org, Sargun Dhillon <sargun@...gun.me>, Kees Cook <keescook@...omium.org>, Alexander Viro <viro@...iv.linux.org.uk>, Kernel Hardening <kernel-hardening@...ts.openwall.com>, Stefan Hajnoczi <stefanha@...hat.com>, linux-kernel@...r.kernel.org, Aleksa Sarai <asarai@...e.de>, io-uring@...r.kernel.org Subject: [PATCH v4 1/3] io_uring: use an enumeration for io_uring_register(2) opcodes The enumeration allows us to keep track of the last io_uring_register(2) opcode available. Behaviour and opcodes names don't change. Signed-off-by: Stefano Garzarella <sgarzare@...hat.com> --- include/uapi/linux/io_uring.h | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index d65fde732518..cdc98afbacc3 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -255,17 +255,22 @@ struct io_uring_params { /* * io_uring_register(2) opcodes and arguments */ -#define IORING_REGISTER_BUFFERS 0 -#define IORING_UNREGISTER_BUFFERS 1 -#define IORING_REGISTER_FILES 2 -#define IORING_UNREGISTER_FILES 3 -#define IORING_REGISTER_EVENTFD 4 -#define IORING_UNREGISTER_EVENTFD 5 -#define IORING_REGISTER_FILES_UPDATE 6 -#define IORING_REGISTER_EVENTFD_ASYNC 7 -#define IORING_REGISTER_PROBE 8 -#define IORING_REGISTER_PERSONALITY 9 -#define IORING_UNREGISTER_PERSONALITY 10 +enum { + IORING_REGISTER_BUFFERS, + IORING_UNREGISTER_BUFFERS, + IORING_REGISTER_FILES, + IORING_UNREGISTER_FILES, + IORING_REGISTER_EVENTFD, + IORING_UNREGISTER_EVENTFD, + IORING_REGISTER_FILES_UPDATE, + IORING_REGISTER_EVENTFD_ASYNC, + IORING_REGISTER_PROBE, + IORING_REGISTER_PERSONALITY, + IORING_UNREGISTER_PERSONALITY, + + /* this goes last */ + IORING_REGISTER_LAST +}; struct io_uring_files_update { __u32 offset; -- 2.26.2
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