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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 1/4] VT-d/qinval: make local variable used for communication with IOMMU "volatile"
>>> On 16.06.14 at 14:55, <andrew.cooper3@xxxxxxxxxx> wrote: > On 16/06/14 13:47, Jan Beulich wrote: >> Without that there is - afaict - nothing preventing the compiler from >> putting the variable into a register for the duration of the wait loop. >> >> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> > > I seem to remember Tim saying that behaviour like this is covered by > -fno-strict-aliasing Afaik it would be if the variable was not an automatic one. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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