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authorMarcel Apfelbaum <marcel.apfelbaum@gmail.com>2019-03-04 20:49:23 +0200
committerDr. David Alan Gilbert <dgilbert@redhat.com>2019-03-06 10:49:17 +0000
commit9589e7630139700581eff3ba9ddfdfbe99362440 (patch)
treee77101e0c590d1837a26714a7c92a04a2753b14b /migration
parent892ae715b6bc8107fccaa3caeb2a5bd4f6d2cb37 (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, &reg_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>
Diffstat (limited to 'migration')
-rw-r--r--migration/rdma.c5
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, &reg_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;