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authorStefan Metzmacher <metze@samba.org>2022-08-11 09:11:15 +0200
committerJens Axboe <axboe@kernel.dk>2022-08-13 01:01:00 +0200
commitf2ccb5aed7bce1d8b3ed5b3385759a5509663028 (patch)
tree32c78d3576a1e594aab4dca3c36efb6ee5dcd93e /io_uring/notif.c
parentfs: don't randomize struct kiocb fields (diff)
downloadlinux-f2ccb5aed7bce1d8b3ed5b3385759a5509663028.tar.xz
linux-f2ccb5aed7bce1d8b3ed5b3385759a5509663028.zip
io_uring: make io_kiocb_to_cmd() typesafe
We need to make sure (at build time) that struct io_cmd_data is not casted to a structure that's larger. Signed-off-by: Stefan Metzmacher <metze@samba.org> Link: https://lore.kernel.org/r/c024cdf25ae19fc0319d4180e2298bade8ed17b8.1660201408.git.metze@samba.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/notif.c')
-rw-r--r--io_uring/notif.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/io_uring/notif.c b/io_uring/notif.c
index 48d29dead62a..977736e82c1a 100644
--- a/io_uring/notif.c
+++ b/io_uring/notif.c
@@ -123,8 +123,6 @@ __cold int io_notif_register(struct io_ring_ctx *ctx,
struct io_uring_notification_register reg;
unsigned i;
- BUILD_BUG_ON(sizeof(struct io_notif_data) > 64);
-
if (ctx->nr_notif_slots)
return -EBUSY;
if (size != sizeof(reg))