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exec.c: Use pow2floor() rather than hand-calculation

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Use pow2floor() to round down to the nearest power of 2,
rather than an inline calculation.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1437741192-20955-5-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2015-07-24 13:33:10 +01:00
parent 26efcec158
commit 6554f5c037
1 changed files with 1 additions and 3 deletions
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4
exec.c
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@ -2374,9 +2374,7 @@ static int memory_access_size(MemoryRegion *mr, unsigned l, hwaddr addr)
if (l > access_size_max) {
l = access_size_max;
}
if (l & (l - 1)) {
l = 1 << (qemu_fls(l) - 1);
}
l = pow2floor(l);
return l;
}