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115781
2018 Apr 09
5
[PATCH] vhost: fix vhost_vq_access_ok() log check
Commit d65026c6c62e7d9616c8ceb5a53b68bcdc050525 ("vhost: validate log
when IOTLB is enabled") introduced a regression. The logic was
originally:
if (vq->iotlb)
return 1;
return A && B;
After the patch the short-circuit logic for A was inverted:
if (A || vq->iotlb)
return A;
return B;
The correct logic is:
if (!A || vq->iotlb)
return A;