diff mbox series

[2/6] io_uring: disable ENTER_EXT_ARG_REG for IOPOLL

Message ID a35ecd919dbdc17bd5b7932273e317832c531b45.1731556844.git.asml.silence@gmail.com (mailing list archive)
State New
Headers show
Series regions, param pre-mapping and reg waits extension | expand

Commit Message

Pavel Begunkov Nov. 14, 2024, 4:14 a.m. UTC 
IOPOLL doesn't use the extended arguments, no need for it to support
IORING_ENTER_EXT_ARG_REG. Let's disable it for IOPOLL, if anything it
leaves more space for future extensions.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 io_uring/io_uring.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index bd71782057de..464a70bde7e6 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -3214,12 +3214,8 @@  static int io_validate_ext_arg(struct io_ring_ctx *ctx, unsigned flags,
 
 	if (!(flags & IORING_ENTER_EXT_ARG))
 		return 0;
-
-	if (flags & IORING_ENTER_EXT_ARG_REG) {
-		if (argsz != sizeof(struct io_uring_reg_wait))
-			return -EINVAL;
-		return PTR_ERR(io_get_ext_arg_reg(ctx, argp));
-	}
+	if (flags & IORING_ENTER_EXT_ARG_REG)
+		return -EINVAL;
 	if (argsz != sizeof(arg))
 		return -EINVAL;
 	if (copy_from_user(&arg, argp, sizeof(arg)))