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io_uring/net: use the correct msghdr union member in io_sendmsg_copy_hdr 

[ Upstream commit 26fed83653 ]

Rather than assign the user pointer to msghdr->msg_control, assign it
to msghdr->msg_control_user to make sparse happy. They are in a union
so the end result is the same, but let's avoid new sparse warnings and
squash this one.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306210654.mDMcyMuB-lkp@intel.com/
Fixes: cac9e4418f ("io_uring/net: save msghdr->msg_control for retries")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jens Axboe 2023-06-20 16:11:51 -06:00 committed by Greg Kroah-Hartman
parent fef7c07b4c
commit 7798d55a05
1 changed files with 2 additions and 2 deletions
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4
io_uring/net.c
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@ -203,7 +203,7 @@ static int io_sendmsg_copy_hdr(struct io_kiocb *req,
ret = sendmsg_copy_msghdr(&iomsg->msg, sr->umsg, sr->msg_flags,
&iomsg->free_iov);
/* save msg_control as sys_sendmsg() overwrites it */
sr->msg_control = iomsg->msg.msg_control;
sr->msg_control = iomsg->msg.msg_control_user;
return ret;
}
@ -302,7 +302,7 @@ int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags)
if (req_has_async_data(req)) {
kmsg = req->async_data;
kmsg->msg.msg_control = sr->msg_control;
kmsg->msg.msg_control_user = sr->msg_control;
} else {
ret = io_sendmsg_copy_hdr(req, &iomsg);
if (ret)