On 11/20/2017 12:25 AM, kbuild test robot wrote:
> Hi Andrew,
>
> It's probably a bug fix that unveils the link errors.
>
> tree: git://git.cmpxchg.org/linux-mmotm.git master
> head: 21c4efa7694b072dddce68082e16156f24e1c1f0
> commit: 6f06b543d9c12d8dc7f90e7a8f548df330bc8e4b [284/303] linux-next-git-rejects
> config: i386-randconfig-x002-11201231 (attached as .config)
> compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
> reproduce:
> git checkout 6f06b543d9c12d8dc7f90e7a8f548df330bc8e4b
> # save the attached .config to linux build tree
> make ARCH=i386
>
> All errors (new ones prefixed by >>):
>
> fs/cramfs/inode.o: In function `cramfs_mount':
>>> fs/cramfs/inode.c:959: undefined reference to `mount_mtd'
> fs/cramfs/inode.o: In function `cramfs_mtd_fill_super':
>>> fs/cramfs/inode.c:641: undefined reference to `mtd_point'
>>> fs/cramfs/inode.c:658: undefined reference to `mtd_unpoint'
> fs/cramfs/inode.c:659: undefined reference to `mtd_point'
Nicolas Pitre already has a patch for this.
> vim +959 fs/cramfs/inode.c
>
> ^1da177e4 Linus Torvalds 2005-04-16 952
> 934e54502 Andrew Morton 2017-11-11 953 static struct dentry *cramfs_mount(struct file_system_type *fs_type, int flags,
> 934e54502 Andrew Morton 2017-11-11 954 const char *dev_name, void *data)
> ^1da177e4 Linus Torvalds 2005-04-16 955 {
> 934e54502 Andrew Morton 2017-11-11 956 struct dentry *ret = ERR_PTR(-ENOPROTOOPT);
> 934e54502 Andrew Morton 2017-11-11 957
> 934e54502 Andrew Morton 2017-11-11 958 if (IS_ENABLED(CONFIG_CRAMFS_MTD)) {
> 934e54502 Andrew Morton 2017-11-11 @959 ret = mount_mtd(fs_type, flags, dev_name, data,
> 934e54502 Andrew Morton 2017-11-11 960 cramfs_mtd_fill_super);
> 934e54502 Andrew Morton 2017-11-11 961 if (!IS_ERR(ret))
> 934e54502 Andrew Morton 2017-11-11 962 return ret;
> 934e54502 Andrew Morton 2017-11-11 963 }
> 934e54502 Andrew Morton 2017-11-11 964 if (IS_ENABLED(CONFIG_CRAMFS_BLOCKDEV)) {
> 934e54502 Andrew Morton 2017-11-11 965 ret = mount_bdev(fs_type, flags, dev_name, data,
> 934e54502 Andrew Morton 2017-11-11 966 cramfs_blkdev_fill_super);
> 934e54502 Andrew Morton 2017-11-11 967 }
> 934e54502 Andrew Morton 2017-11-11 968 return ret;
> ^1da177e4 Linus Torvalds 2005-04-16 969 }
> ^1da177e4 Linus Torvalds 2005-04-16 970
>
> :::::: The code at line 959 was first introduced by commit
> :::::: 934e54502aed49ec17d662a6bb35dfe79044fa4b linux-next
>
> :::::: TO: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> :::::: CC: Johannes Weiner <hannes@xxxxxxxxxxx>
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
>
--
~Randy
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