io_uring/rw: drop unused attr_type_mask from io_prep_rw_pi()

io_prep_rw_pi() never used the attr_type_mask argument. Callers already
validate sqe->attr_type_mask before invoking the helper (only
IORING_RW_ATTR_FLAG_PI is supported today). Remove the dead parameter to
avoid implying further interpretation happens here.

Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Link: https://patch.msgid.link/20260513094303.866533-1-yangxiuwei@kylinos.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/io_uring/rw.c b/io_uring/rw.c
index e729e0e7657ecc10b48c230db895d049b7f8ed01..0c48346452797afb0221cda7b32c08867d744cbb 100644 (file)
--- a/io_uring/rw.c
+++ b/io_uring/rw.c
@@ -230,7 +230,7 @@ static inline void io_meta_restore(struct io_async_rw *io, struct kiocb *kiocb)
 }
 
 static int io_prep_rw_pi(struct io_kiocb *req, struct io_rw *rw, int ddir,
-                        u64 attr_ptr, u64 attr_type_mask)
+                        u64 attr_ptr)
 {
        struct io_uring_attr_pi pi_attr;
        struct io_async_rw *io;
@@ -305,7 +305,7 @@ static int __io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe,
                        return -EINVAL;
 
                attr_ptr = READ_ONCE(sqe->attr_ptr);
-               return io_prep_rw_pi(req, rw, ddir, attr_ptr, attr_type_mask);
+               return io_prep_rw_pi(req, rw, ddir, attr_ptr);
        }
        return 0;
 }