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| author | Marcel Apfelbaum <marcel.apfelbaum@gmail.com> | 2019-03-04 20:49:23 +0200 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2019-03-06 10:49:17 +0000 |
| commit | 9589e7630139700581eff3ba9ddfdfbe99362440 (patch) | |
| tree | e77101e0c590d1837a26714a7c92a04a2753b14b | |
| parent | 892ae715b6bc8107fccaa3caeb2a5bd4f6d2cb37 (diff) | |
migration/rdma: clang compilation fix
Configuring QEMU with:
../configure --cc=clang --enable-rdma
Leads to compilation error:
CC migration/rdma.o
CC migration/block.o
qemu/migration/rdma.c:3615:58: error: taking address of packed member 'rkey' of class or structure
'RDMARegisterResult' may result in an unaligned pointer value [-Werror,-Waddress-of-packed-member]
(uintptr_t)host_addr, NULL, ®_result->rkey,
^~~~~~~~~~~~~~~~
Fix it by using a temp local variable.
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20190304184923.24215-1-marcel.apfelbaum@gmail.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
| -rw-r--r-- | migration/rdma.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/migration/rdma.c b/migration/rdma.c index 9fa3b176eb..d5251cd820 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -3613,13 +3613,16 @@ static int qemu_rdma_registration_handle(QEMUFile *f, void *opaque) } chunk_start = ram_chunk_start(block, chunk); chunk_end = ram_chunk_end(block, chunk + reg->chunks); + /* avoid "-Waddress-of-packed-member" warning */ + uint32_t tmp_rkey = 0; if (qemu_rdma_register_and_get_keys(rdma, block, - (uintptr_t)host_addr, NULL, ®_result->rkey, + (uintptr_t)host_addr, NULL, &tmp_rkey, chunk, chunk_start, chunk_end)) { error_report("cannot get rkey"); ret = -EINVAL; goto out; } + reg_result->rkey = tmp_rkey; reg_result->host_addr = (uintptr_t)block->local_host_addr; |