On Wed, Mar 17, 2021 at 7:25 AM Nathan Chancellor <nathan@xxxxxxxxxx> wrote: > > On Tue, Feb 23, 2021 at 03:19:01PM +0100, Timo Rothenpieler wrote: > > This follows what was done in 8c2fabc6542d9d0f8b16bd1045c2eda59bdcde13. > > With the default being m, it's impossible to build the module into the > > kernel. > > > > Signed-off-by: Timo Rothenpieler <timo@xxxxxxxxxxxxxxxx> > > --- > > fs/nfs/Kconfig | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig > > index e2a488d403a6..14a72224b657 100644 > > --- a/fs/nfs/Kconfig > > +++ b/fs/nfs/Kconfig > > @@ -127,7 +127,7 @@ config PNFS_BLOCK > > config PNFS_FLEXFILE_LAYOUT > > tristate > > depends on NFS_V4_1 && NFS_V3 > > - default m > > + default NFS_V4 > > > > config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN > > string "NFSv4.1 Implementation ID Domain" > > -- > > 2.25.1 > > > > Hi all, > > I bisected a new modpost warning that I see with 5.12-rc3 to this commit: > > $ make -skj"$(nproc)" ARCH=mips CROSS_COMPILE=mipsel-linux- O=build/mipsel distclean defconfig all > ... > WARNING: modpost: Symbol info of vmlinux is missing. Unresolved symbol check will be entirely skipped. > ... Thanks for the report. MIPS defconfig enables CONFIG_TRIM_UNUSED_KSYMS. Presumably with a0590473c5e6c4ef17, MIPS defconfig enables CONFIG_MODULES, but actually builds no module. So, all symbols in vmlinux have been trimmed, and vmlinux.symvers gets empty. That is the reason for the warning. I will consider how to fix this corner case. > > $ git bisect log > # bad: [1e28eed17697bcf343c6743f0028cc3b5dd88bf0] Linux 5.12-rc3 > # good: [a38fd8748464831584a19438cbb3082b5a2dab15] Linux 5.12-rc2 > git bisect start 'v5.12-rc3' 'v5.12-rc2' > # good: [f78d76e72a4671ea52d12752d92077788b4f5d50] Merge tag 'drm-fixes-2021-03-12-1' of git://anongit.freedesktop.org/drm/drm > git bisect good f78d76e72a4671ea52d12752d92077788b4f5d50 > # bad: [420623430a7015ae9adab8a087de82c186bc9989] Merge tag 'erofs-for-5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs > git bisect bad 420623430a7015ae9adab8a087de82c186bc9989 > # good: [261410082d01f2f2d4fcd19abee6b8e84f399c51] Merge tag 'devprop-5.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm > git bisect good 261410082d01f2f2d4fcd19abee6b8e84f399c51 > # good: [ce307084c96d0ec92c04fcc38b107241b168df11] Merge tag 'block-5.12-2021-03-12-v2' of git://git.kernel.dk/linux-block > git bisect good ce307084c96d0ec92c04fcc38b107241b168df11 > # bad: [f296bfd5cd04cbb49b8fc9585adc280ab2b58624] Merge tag 'nfs-for-5.12-2' of git://git.linux-nfs.org/projects/anna/linux-nfs > git bisect bad f296bfd5cd04cbb49b8fc9585adc280ab2b58624 > # good: [9afc1163794707a304f107bf21b8b37e5c6c34f4] Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi > git bisect good 9afc1163794707a304f107bf21b8b37e5c6c34f4 > # bad: [fd6d3feed041e96b84680d0bfc1e7abc8f65de92] NFS: Clean up function nfs_mark_dir_for_revalidate() > git bisect bad fd6d3feed041e96b84680d0bfc1e7abc8f65de92 > # bad: [f0940f4b3284a00f38a5d42e6067c2aaa20e1f2e] SUNRPC: Set memalloc_nofs_save() for sync tasks > git bisect bad f0940f4b3284a00f38a5d42e6067c2aaa20e1f2e > # bad: [ad3dbe35c833c2d4d0bbf3f04c785d32f931e7c9] NFS: Correct size calculation for create reply length > git bisect bad ad3dbe35c833c2d4d0bbf3f04c785d32f931e7c9 > # bad: [a0590473c5e6c4ef17c3132ad08fbad170f72d55] nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default > git bisect bad a0590473c5e6c4ef17c3132ad08fbad170f72d55 > # first bad commit: [a0590473c5e6c4ef17c3132ad08fbad170f72d55] nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default > > $ mipsel-linux-gcc --version > mipsel-linux-gcc (GCC) 10.2.0 > Copyright (C) 2020 Free Software Foundation, Inc. > This is free software; see the source for copying conditions. There is NO > warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. > > I doubt this is a bug with this specific commit but I am not sure so I > have added Masahiro and the kbuild list as well as the MIPS list even > though it might not be MIPS specific (although I only see it with the > 32-bit MIPS configs) > > Cheers, > Nathan -- Best Regards Masahiro Yamada
