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We have been a bit slack about updating the CPU_FTRS_POSSIBLE and CPU_FTRS_ALWAYS masks. When we added POWER8, and also POWER8E we forgot to update the ALWAYS mask. And when we added POWER8_DD1 we forgot to update both the POSSIBLE and ALWAYS masks. Luckily this hasn't caused any actual bugs AFAICS. Failing to update the ALWAYS mask just forgoes a potential optimisation opportunity. Failing to update the POSSIBLE mask for POWER8_DD1 is also OK because it only removes a bit rather than adding any. Regardless they should all be in both masks so as to avoid any future bugs when the set of ALWAYS/POSSIBLE bits changes, or the masks themselves change. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Michael Neuling <mikey@neuling.org> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
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