nbd: Fix 32-bit compilation on BLOCK_STATUS
iotests 123 and 209 fail on 32-bit platforms. The culprit:
sizeof(extent) is wrong; we want sizeof(*extent). But since
the struct is 8 bytes, it happened to work on 64-bit platforms
where the pointer is also 8 bytes (nasty).
Fixes: 78a33ab58
Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180327210517.1804242-1-eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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@ -239,7 +239,7 @@ static int nbd_parse_blockstatus_payload(NBDClientSession *client,
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{
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uint32_t context_id;
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if (chunk->length != sizeof(context_id) + sizeof(extent)) {
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if (chunk->length != sizeof(context_id) + sizeof(*extent)) {
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error_setg(errp, "Protocol error: invalid payload for "
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"NBD_REPLY_TYPE_BLOCK_STATUS");
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return -EINVAL;
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