hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I47SV5?from=project-issue
CVE: NA

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In comp_read_size rxm->offset should be subtracted from skb->len. And use
strp_done to release resoureces when destroy sock.
Signed-off-by: NWang Yufen <wangyufen@huawei.com>
Reviewed-by: NWei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: NYue Haibing <yuehaibing@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>