From 8a947c7a586e16a048894e1a0a73d154435e90ef Mon Sep 17 00:00:00 2001 From: Haiyue Wang Date: Tue, 22 Feb 2022 00:24:01 +0800 Subject: [PATCH] aio-posix: fix build failure io_uring 2.2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The io_uring fixed "Don't truncate addr fields to 32-bit on 32-bit": https://git.kernel.dk/cgit/liburing/commit/?id=d84c29b19ed0b130000619cff40141bb1fc3615b This leads to build failure: ../util/fdmon-io_uring.c: In function ‘add_poll_remove_sqe’: ../util/fdmon-io_uring.c:182:36: error: passing argument 2 of ‘io_uring_prep_poll_remove’ makes integer from pointer without a cast [-Werror=int-conversion] 182 | io_uring_prep_poll_remove(sqe, node); | ^~~~ | | | AioHandler * In file included from /root/io/qemu/include/block/aio.h:18, from ../util/aio-posix.h:20, from ../util/fdmon-io_uring.c:49: /usr/include/liburing.h:415:17: note: expected ‘__u64’ {aka ‘long long unsigned int’} but argument is of type ‘AioHandler *’ 415 | __u64 user_data) | ~~~~~~^~~~~~~~~ cc1: all warnings being treated as errors Use LIBURING_HAVE_DATA64 to check whether the io_uring supports 64-bit variants of the get/set userdata, to convert the paramter to the right data type. Signed-off-by: Haiyue Wang Message-Id: <20220221162401.45415-1-haiyue.wang@intel.com> Signed-off-by: Stefan Hajnoczi --- util/fdmon-io_uring.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/util/fdmon-io_uring.c b/util/fdmon-io_uring.c index 1461dfa407..ab43052dd7 100644 --- a/util/fdmon-io_uring.c +++ b/util/fdmon-io_uring.c @@ -179,7 +179,11 @@ static void add_poll_remove_sqe(AioContext *ctx, AioHandler *node) { struct io_uring_sqe *sqe = get_sqe(ctx); +#ifdef LIBURING_HAVE_DATA64 + io_uring_prep_poll_remove(sqe, (__u64)(uintptr_t)node); +#else io_uring_prep_poll_remove(sqe, node); +#endif } /* Add a timeout that self-cancels when another cqe becomes ready */