linux-stable/drivers/staging/erofs
Chao Yu 156c3df8d4 staging: erofs: disable compiling temporarile
As Stephen Rothwell reported:

"After merging the staging tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/staging/erofs/super.c: In function 'erofs_read_super':
drivers/staging/erofs/super.c:343:17: error: 'MS_RDONLY' undeclared (first use in this function); did you mean 'IS_RDONLY'?
  sb->s_flags |= MS_RDONLY | MS_NOATIME;
                 ^~~~~~~~~
                 IS_RDONLY
drivers/staging/erofs/super.c:343:17: note: each undeclared identifier is reported only once for each function it appears in
drivers/staging/erofs/super.c:343:29: error: 'MS_NOATIME' undeclared (first use in this function); did you mean 'S_NOATIME'?
  sb->s_flags |= MS_RDONLY | MS_NOATIME;
                             ^~~~~~~~~~
                             S_NOATIME
drivers/staging/erofs/super.c: In function 'erofs_mount':
drivers/staging/erofs/super.c:501:10: warning: passing argument 5 of 'mount_bdev' makes integer from pointer without a cast [-Wint-conversion]
   &priv, erofs_fill_super);
          ^~~~~~~~~~~~~~~~
In file included from include/linux/buffer_head.h:12:0,
                 from drivers/staging/erofs/super.c:14:
include/linux/fs.h:2151:23: note: expected 'size_t {aka long unsigned int}' but argument is of type 'int (*)(struct super_block *, void *, int)'
 extern struct dentry *mount_bdev(struct file_system_type *fs_type,
                       ^~~~~~~~~~
drivers/staging/erofs/super.c:500:9: error: too few arguments to function 'mount_bdev'
  return mount_bdev(fs_type, flags, dev_name,
         ^~~~~~~~~~
In file included from include/linux/buffer_head.h:12:0,
                 from drivers/staging/erofs/super.c:14:
include/linux/fs.h:2151:23: note: declared here
 extern struct dentry *mount_bdev(struct file_system_type *fs_type,
                       ^~~~~~~~~~
drivers/staging/erofs/super.c: At top level:
drivers/staging/erofs/super.c:518:20: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
  .mount          = erofs_mount,
                    ^~~~~~~~~~~
drivers/staging/erofs/super.c:518:20: note: (near initialization for 'erofs_fs_type.mount')
drivers/staging/erofs/super.c: In function 'erofs_remount':
drivers/staging/erofs/super.c:630:12: error: 'MS_RDONLY' undeclared (first use in this function); did you mean 'IS_RDONLY'?
  *flags |= MS_RDONLY;
            ^~~~~~~~~
            IS_RDONLY
drivers/staging/erofs/super.c: At top level:
drivers/staging/erofs/super.c:640:16: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
  .remount_fs = erofs_remount,
                ^~~~~~~~~~~~~

Caused by various commits creating erofs in the staging tree interacting
with various commits redoing the mount infrastructure in the vfs tree.

I have disabed CONFIG_EROFS_FS for now:"

The reason of compiling error is:

Since -next collects and merges developing patches including common vfs
stuff from multi-trees, but those patches didn't cover erofs, such as:

('vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled")
https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git/commit/?h=for-next&id=109b45090d7d3ce2797bb1ef7f70eead5bfe0ff3

("vfs: Require specification of size of mount data for internal mounts")
https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git/commit/?h=for-next&id=0a191e4505a4f255e6513b49426213da69bf0e80

Above vfs related patches has not been merged in staging tree, if we
submit those erofs patches to staging mailing list and after including
them in staging-{test,nexts} tree, it can easily cause compiling error.

We worked out some patches to adjust those vfs change, but now we just
submit them to -next tree temporarily to avoid compiling error.

For potentail conflict in between erofs and vfs changes in incoming
merge window, Stephen suggested that we can disable CONFIG_EROFS_FS
temporarily to pass merge window, and after that we can do restore by
reenabling CONFIG_EROFS_FS and applying those fixing patches. Also
Greg confirmed this solution.

So, let's disable compiling erofs for a while.

Suggested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-02 12:15:44 +02:00
..
include staging: erofs: <linux/tagptr.h>: introduce tagged pointer 2018-07-27 17:24:08 +02:00
data.c staging: erofs: globalize prepare_bio and __submit_bio 2018-07-27 17:24:08 +02:00
dir.c staging: erofs: add directory operations 2018-07-27 17:22:00 +02:00
erofs_fs.h
inode.c staging: erofs: introduce VLE decompression support 2018-07-27 17:24:10 +02:00
internal.h staging: erofs: fix compile error without built-in decompression support 2018-07-29 08:05:02 +02:00
Kconfig staging: erofs: disable compiling temporarile 2018-08-02 12:15:44 +02:00
lz4defs.h staging: erofs: introduce a customized LZ4 decompression 2018-07-27 17:24:09 +02:00
Makefile staging: erofs: add a generic z_erofs VLE decompressor 2018-07-27 17:24:09 +02:00
namei.c staging: erofs: use the wrapped PTR_ERR_OR_ZERO instead of open code 2018-07-30 09:38:34 +02:00
super.c staging: erofs: fix compile error without built-in decompression support 2018-07-29 08:05:02 +02:00
TODO staging: erofs: add a TODO and update MAINTAINERS for staging 2018-07-27 17:24:10 +02:00
unzip_lz4.c staging: erofs: introduce a customized LZ4 decompression 2018-07-27 17:24:09 +02:00
unzip_pagevec.h staging: erofs: introduce pagevec for unzip subsystem 2018-07-27 17:24:08 +02:00
unzip_vle.c staging: erofs: add the missing break in z_erofs_map_blocks_iter 2018-08-01 19:50:38 +02:00
unzip_vle.h staging: erofs: fix a compile warning of Z_EROFS_VLE_VMAP_ONSTACK_PAGES 2018-07-28 09:21:30 +02:00
unzip_vle_lz4.c staging: erofs: add a generic z_erofs VLE decompressor 2018-07-27 17:24:09 +02:00
utils.c staging: erofs: fix compile error without built-in decompression support 2018-07-29 08:05:02 +02:00
xattr.c staging: erofs: remove a redundant marco in xattr 2018-08-01 19:50:38 +02:00
xattr.h staging: erofs: introduce xattr & acl support 2018-07-27 17:24:08 +02:00