Date: Thu, 6 Feb 2020 17:41:52 +0100 From: Hans Petter Selasky <hps@selasky.org> To: Pawel Biernacki <kaktus@FreeBSD.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r357614 - in head/sys: kern sys Message-ID: <ed14c28a-d212-e488-898a-cf85ac6ead73@selasky.org> In-Reply-To: <202002061245.016CjwTi096374@repo.freebsd.org> References: <202002061245.016CjwTi096374@repo.freebsd.org>
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On 2020-02-06 13:45, Pawel Biernacki wrote: > +#ifdef notyet > +#define SYSCTL_ENFORCE_FLAGS(x) \ > + _Static_assert(((CTLFLAG_MPSAFE ^ CTLFLAG_NEEDGIANT) & (x)), \ > + "Has to be either CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT") > +#else > +#define SYSCTL_ENFORCE_FLAGS(x) > +#endif Like cem@ pointed out, either you expand the XOR via OR or you can also do it like this: (((x) & CTLFLAG_MPSAFE) != 0) ^ (((x) & CTLFLAG_NEEDGIANT) != 0) which avoids having to define another macro. --HPS
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