On 8/5/22 5:54 AM, Dylan Yudaken wrote:
> Fix casts missing the __user parts. This seemed to only cause errors on
> the alpha build, but it was definitely an oversight.
>
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Fixes: 9bb66906f23e ("io_uring: support multishot in recvmsg")
> Signed-off-by: Dylan Yudaken <dylany@xxxxxx>
> ---
>
> Hi,
>
> I tried to reproduce this issue to be sure this fixes it, but I could not get the
> warnings out of the gcc I have locally.
> That being said it seems like a fairly clear fix.
If you do:
axboe@m1 ~/gi/linux-block (io_uring-6.0)> make C=1 io_uring/net.o
o_uring/net.c: note: in included file (through io_uring/io_uring.h):
io_uring/slist.h:138:29: warning: no newline at end of file
io_uring/net.c:579:44: warning: incorrect type in assignment (different address spaces)
io_uring/net.c:579:44: expected void [noderef] __user *msg_control_user
io_uring/net.c:579:44: got void *
io_uring/net.c:584:14: warning: incorrect type in assignment (different address spaces)
io_uring/net.c:584:14: expected void [noderef] __user *
io_uring/net.c:584:14: got void *
it'll show it, you need 'sparse' installed for that.
--
Jens Axboe
