On Fri, 17 Nov 2023 15:17:02 -0700 Jonathan Corbet wrote: > In principle I like this approach better. There is one problem, though: > > - In current kernels, on my machine, "make htmldocs" when nothing has > changed takes about 6s to complete. > > - With this patch applied, it takes a little over 5 *minutes*. > > Without having delved into it too far, I am guessing that the > unconditional recreation of the netlink RST files is causing the rebuild > of much of the documentation. Even so, I don't quite get it. > > That, clearly, would need to be fixed before this can go in. FWIW on the C code-gen side we avoid touching the files if nothing changed both at the Makefile level: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/tree/tools/net/ynl/generated/Makefile#n28 And the tool itself actually generates to a tempfile and compares if the output changed: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=2b7ac0c87d985c92e519995853c52b9649ea4b07
