On Fri, May 28, 2021 at 08:09:39AM +0000, David Laight wrote: > From: Andrii Nakryiko > > Sent: 27 May 2021 15:42 > ... > > I agree that empty structs are useful, but here we are talking about > > per-CPU variables only, which is the first use case so far, as far as > > I can see. If we had pahole 1.22 released and widely packaged it could > > have been a viable option to force it on everyone. > ... > > Would it be feasible to put the sources for pahole into the > kernel repository and build it at the same time as objtool? > We don't store other build dependencies like compilers, binutils etc in the kernel repository even though minimum versions are mandated. Obviously tools/ exists but for the most part, they are tools that do not exist in other repositories and are kernel-specific. I don't know if pahole would be accepted and it introduces the possibility that upstream pahole and the kernel fork of it would diverge. -- Mel Gorman SUSE Labs
