linux-kernel - Re: [GIT PULL] Kbuild updates for v6.1-rc1

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Date:   Fri, 14 Oct 2022 21:45:49 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     dsterba@...e.cz
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [GIT PULL] Kbuild updates for v6.1-rc1

On Fri, Oct 14, 2022 at 7:06 PM David Sterba <dsterba@...e.cz> wrote:
>
> On Fri, Oct 14, 2022 at 11:49:30AM +0200, David Sterba wrote:
> > On Thu, Oct 06, 2022 at 11:29:44PM +0900, Masahiro Yamada wrote:
> > > Masahiro Yamada (35):
> > >       kbuild: remove the target in signal traps when interrupted
> > >       kbuild: add phony targets to ./Kbuild
> > >       kbuild: hard-code KBUILD_ALLDIRS in scripts/Makefile.package
> > >       kbuild: check sha1sum just once for each atomic header
> > >       kbuild: do not deduplicate modules.order
> > >       nios2: move core-y in arch/nios2/Makefile to arch/nios2/Kbuild
> > >       kbuild: remove duplicated dependency between modules and modules_check
> >
> > This patch merged as f75a03340c2c2eea772e4d59412135021afea493 breaks
> > build of modules when it's specified by path like 'make fs/btrfs/'. The
> > 'make M=fs/btrfs' works but I don't see any reason why the former should
> > stop working. Also the patch does not mention anything like that so it's
> > most likely a bug.
>
> Sorry, it must be a different commit, the build works on that one.
> Here's the full bisect log:
>
> # bad: [9c9155a3509a2ebdb06d77c7a621e9685c802eac] Merge tag 'drm-next-2022-10-14' of git://anongit.freedesktop.org/drm/drm
> # good: [4fe89d07dcc2804c8b562f6c7896a45643d34b2f] Linux 6.0
> git bisect start 'master' 'v6.0'
> # good: [7171a8da00035e7913c3013ca5fb5beb5b8b22f0] Merge tag 'arm-dt-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
> git bisect good 7171a8da00035e7913c3013ca5fb5beb5b8b22f0
> # good: [bdc753c7fcb4eb009ae246a188ea7ac6dac98ce1] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
> git bisect good bdc753c7fcb4eb009ae246a188ea7ac6dac98ce1
> # bad: [27bc50fc90647bbf7b734c3fc306a5e61350da53] Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
> git bisect bad 27bc50fc90647bbf7b734c3fc306a5e61350da53
> # bad: [d4013bc4d49f6da8178a340348369bb9920225c9] Merge tag 'bitmap-6.1-rc1' of https://github.com/norov/linux
> git bisect bad d4013bc4d49f6da8178a340348369bb9920225c9
> # good: [e572410e47a4e9647d5d7a49ca699a1497378707] Merge tag 'signal-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
> git bisect good e572410e47a4e9647d5d7a49ca699a1497378707
> # good: [52abb27abfff8c5ddf44eef4d759f3d1e9f166c5] Merge tag 'slab-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
> git bisect good 52abb27abfff8c5ddf44eef4d759f3d1e9f166c5
> # bad: [8afc66e8d43be8edcf442165b70d50dd33091e68] Merge tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
> git bisect bad 8afc66e8d43be8edcf442165b70d50dd33091e68
> # good: [b520410654103086ccc0d339c0ff645d4c4dd697] Merge tag 'printk-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
> git bisect good b520410654103086ccc0d339c0ff645d4c4dd697
> # bad: [26ef40de5cbb24728a34a319e8d42cdec99f186c] kbuild: move .vmlinux.objs rule to Makefile.modpost
> git bisect bad 26ef40de5cbb24728a34a319e8d42cdec99f186c
> # bad: [a55f283e8b473a3124705934a17d0ad61e34e6c1] kbuild: generate include/generated/compile.h in top Makefile
> git bisect bad a55f283e8b473a3124705934a17d0ad61e34e6c1
> # good: [e30d448754284d6c7580b8f330e257e9801bec76] nios2: move core-y in arch/nios2/Makefile to arch/nios2/Kbuild
> git bisect good e30d448754284d6c7580b8f330e257e9801bec76
> # bad: [7f37181393a9aaa695187701bb38f356df1f1cf8] kbuild: move 'PHONY += modules_prepare' to the common part
> git bisect bad 7f37181393a9aaa695187701bb38f356df1f1cf8
> # bad: [f110e5a250e3c5db417e094b3dd86f1c135291ca] kbuild: refactor single builds of *.ko
> git bisect bad f110e5a250e3c5db417e094b3dd86f1c135291ca
>
> f110e5a250e3c5d "kbuild: refactor single builds of *.ko"
>
> that looks plausible but reverting the commit does not make it work.


Right. Thanks for the report.

I will send a fix.





-- 
Best Regards
Masahiro Yamada