Hi Mark, On Tue, 17 Oct 2023 21:16:21 +0100 Mark Brown <broonie@xxxxxxxxxx> wrote: > > I was wondering if it might be possible to add DTB builds for relevant > architecutres to the -next merge checks (everything except x86 AFAIK)? > Some current experience suggested to me that it might be helpful for > bisecting problems found in testing, breakage building the DTBs causes > hassle since where they're used in tree DTs are required to boot the > kernel. > > At least for arm and arm64 the DT build is quick enough to be negligable > in the context of building the kernel itself so hopefully it shouldn't > add too much load to do this - it's just adding a 'make dtbs' (with > appropriate cross build options) to the kernel build. Ummm, arm builds (and many others) select CONFIG_OF_EARLY_FLATTREE (in the case of arm, only if CONFIG_OF is set), and the top level Makefile does this: ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) dtstree := arch/$(SRCARCH)/boot/dts endif ifneq ($(dtstree),) . . . ifdef CONFIG_OF_EARLY_FLATTREE all: dtbs endif endif So won't this be the same as doing a separate "make dtbs"? -- Cheers, Stephen Rothwell
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