Re: [PATCH v5 0/4] dedupe smb unicode files

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tentatively merged to cifs-2.6.git for-next pending additional testing

Let me know if anyone wants to add RB or Acked-by to any of these or
spots any issues

On Wed, Aug 16, 2023 at 7:22 PM <linux@xxxxxxxxxxx> wrote:
>
> From: "Dr. David Alan Gilbert" <dave@xxxxxxxxxxx>
>
> The smb client and server code have (mostly) duplicated code
> for unicode manipulation, in particular upper case handling.
>
> Flatten this lot into shared code.
>
> There's some code that's slightly different between the two, and
> I've not attempted to share that - this should be strictly a no
> behaviour change set.
>
> In addition, the same tables and code are shared in jfs, however
> there's very little testing available for the unicode in there,
> so just share the raw data tables.
>
> I suspect there's more UCS-2 code that can be shared, in the NLS code
> and in the UCS-2 code used by the EFI interfaces.
>
> Lightly tested with a module and a monolithic build, and just mounting
> itself.
>
> This dupe was found using PMD:
>   https://pmd.github.io/pmd/pmd_userdocs_cpd.html
>
> Dave
>
> Version 5
>   Add some (wchar_t *) casts to keep sparse
>   happy, as spotted by kernel test robot
>
> Dr. David Alan Gilbert (4):
>   fs/smb: Remove unicode 'lower' tables
>   fs/smb: Swing unicode common code from smb->NLS
>   fs/smb/client: Use common code in client
>   fs/jfs: Use common ucs2 upper case table
>
>  fs/jfs/Kconfig                                |   1 +
>  fs/jfs/Makefile                               |   2 +-
>  fs/jfs/jfs_unicode.h                          |  17 +-
>  fs/jfs/jfs_uniupr.c                           | 121 -------
>  fs/nls/Kconfig                                |   8 +
>  fs/nls/Makefile                               |   1 +
>  fs/nls/nls_ucs2_data.h                        |  15 +
>  .../server/uniupr.h => nls/nls_ucs2_utils.c}  | 156 +--------
>  fs/nls/nls_ucs2_utils.h                       | 285 +++++++++++++++
>  fs/smb/client/Kconfig                         |   1 +
>  fs/smb/client/cifs_unicode.c                  |   1 -
>  fs/smb/client/cifs_unicode.h                  | 330 +-----------------
>  fs/smb/client/cifs_uniupr.h                   | 239 -------------
>  fs/smb/client/smb2pdu.c                       |   4 +-
>  fs/smb/server/Kconfig                         |   1 +
>  fs/smb/server/unicode.c                       |   1 -
>  fs/smb/server/unicode.h                       | 325 +----------------
>  17 files changed, 342 insertions(+), 1166 deletions(-)
>  delete mode 100644 fs/jfs/jfs_uniupr.c
>  create mode 100644 fs/nls/nls_ucs2_data.h
>  rename fs/{smb/server/uniupr.h => nls/nls_ucs2_utils.c} (50%)
>  create mode 100644 fs/nls/nls_ucs2_utils.h
>  delete mode 100644 fs/smb/client/cifs_uniupr.h
>
> --
> 2.41.0
>


-- 
Thanks,

Steve




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