Messages in this thread | | | Date | Tue, 13 Mar 2018 19:08:06 +0100 | From | Peter Zijlstra <> | Subject | Re: [tip:locking/core 9/11] include/asm-generic/atomic-instrumented.h:288:24: sparse: cast truncates bits from constant value (100 becomes 0) |
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On Tue, Mar 13, 2018 at 07:00:17PM +0100, Luc Van Oostenryck wrote: > The issue here is that sparse has a whole class of warnings that are > given very early (here at expansion of constant expressions), before > eliminating code from branches that are never taken (which, surprise, > need itself to have constant expressions already expanded). > > It's often annoying like the case here. > OTOH, I don't think it's always a bad thing. Sometimes we want to > have warnings even from code we know will not be executed (in this > config but maybe it will in another one).
Is that really a valid concern with all the automated randconfig building going on today?
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