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| author |   Pavel Begunkov <asml.silence@gmail.com> | 2025-05-13 18:26:49 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2025-05-13 14:45:55 -0600 |
| commit | 52a05d0cf8f3b4569c525153132a90661c32fe11 (patch) | |
| tree | d665f4e4b950731dba26d26b444f5936d5a6595b | |
| parent | io_uring/kbuf: drop extra vars in io_register_pbuf_ring (diff) | |
| download | wireguard-linux-52a05d0cf8f3b4569c525153132a90661c32fe11.tar.xz wireguard-linux-52a05d0cf8f3b4569c525153132a90661c32fe11.zip | |
io_uring/kbuf: don't compute size twice on prep
The size in prep is calculated by io_provide_buffers_prep(), so remove
the recomputation a few lines after.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7c97206561b74fce245cb22449c6082d2e066844.1747150490.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | io_uring/kbuf.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/io_uring/kbuf.c b/io_uring/kbuf.c index 406e8a9b42c3..eb666c02f488 100644 --- a/io_uring/kbuf.c +++ b/io_uring/kbuf.c @@ -509,8 +509,6 @@ int io_provide_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe return -EOVERFLOW; if (check_add_overflow((unsigned long)p->addr, size, &tmp_check)) return -EOVERFLOW; - - size = (unsigned long)p->len * p->nbufs; if (!access_ok(u64_to_user_ptr(p->addr), size)) return -EFAULT; |