diff options
| author | Breno Leitao <leitao@debian.org> | 2023-05-04 05:18:56 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-05-04 08:19:05 -0600 |
| commit | d2b7fa6174bc4260e496cbf84375c73636914641 (patch) | |
| tree | cd92c6206f466887380e171355b8c0304db9e3e9 /io_uring/uring_cmd.c | |
| parent | fd9b8547bc5c34186dc42ea05fb4380d21695374 (diff) | |
io_uring: Remove unnecessary BUILD_BUG_ON
In the io_uring_cmd_prep_async() there is an unnecessary compilation time
check to check if cmd is correctly placed at field 48 of the SQE.
This is unnecessary, since this check is already in place at
io_uring_init():
BUILD_BUG_SQE_ELEM(48, __u64, addr3);
Remove it and the uring_cmd_pdu_size() function, which is not used
anymore.
Keith started a discussion about this topic in the following thread:
Link: https://lore.kernel.org/lkml/ZDBmQOhbyU0iLhMw@kbusch-mbp.dhcp.thefacebook.com/
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/20230504121856.904491-4-leitao@debian.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/uring_cmd.c')
| -rw-r--r-- | io_uring/uring_cmd.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c index ed536d7499db..5e32db48696d 100644 --- a/io_uring/uring_cmd.c +++ b/io_uring/uring_cmd.c @@ -70,9 +70,6 @@ int io_uring_cmd_prep_async(struct io_kiocb *req) { struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd); - BUILD_BUG_ON(uring_cmd_pdu_size(0) != 16); - BUILD_BUG_ON(uring_cmd_pdu_size(1) != 80); - memcpy(req->async_data, ioucmd->sqe, uring_sqe_size(req->ctx)); ioucmd->sqe = req->async_data; return 0; |