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
