From: Chris Wright <[email protected]>
Date: Tue, 18 Jul 2006 00:00:23 -0700
> + BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0);
Although it happens to work currently, I think we should get out of
the habit of putting operations with wanted side effects into BUG_ON()
calls. The following is therefore more preferable:
ret = HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF);
BUG_ON(ret < 0);
If this were ASSERT() in userspace, turning off debugging at build
time would make the evaluations inside of the macro never occur. It
is my opinion that BUG_ON() should behave similarly.
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