Avoid undefined behaviour.
Reviewed by: zec@
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parent
a6e09ef1c2
commit
8016863c91
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=207426
@ -816,14 +816,17 @@ pipe_dequeue(struct hookinfo *hinfo, struct timeval *now) {
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}
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/* Randomly discard the frame, according to BER setting */
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if (hinfo->cfg.ber &&
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((oldrand = rand) ^ (rand = random())<<17) >=
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hinfo->ber_p[priv->overhead + m->m_pkthdr.len] ) {
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hinfo->stats.out_disc_frames++;
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hinfo->stats.out_disc_octets += m->m_pkthdr.len;
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uma_zfree(ngp_zone, ngp_h);
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m_freem(m);
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continue;
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if (hinfo->cfg.ber) {
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oldrand = rand;
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rand = random();
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if (((oldrand ^ rand) << 17) >=
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hinfo->ber_p[priv->overhead + m->m_pkthdr.len]) {
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hinfo->stats.out_disc_frames++;
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hinfo->stats.out_disc_octets += m->m_pkthdr.len;
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uma_zfree(ngp_zone, ngp_h);
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m_freem(m);
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continue;
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}
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}
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/* Discard frame if outbound queue size limit exceeded */
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