linux-kernel - Re: [PATCH 0/3] dedupe smb unicode files

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Date:   Wed, 28 Jun 2023 13:46:57 +0000
From:   "Dr. David Alan Gilbert" <linux@...blig.org>
To:     Tom Talpey <tom@...pey.com>
Cc:     sfrench@...ba.org, linkinjeon@...nel.org,
        linux-cifs@...r.kernel.org, jfs-discussion@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] dedupe smb unicode files

* Dr. David Alan Gilbert (dave@...blig.org) wrote:
> * Tom Talpey (tom@...pey.com) wrote:
> > On 6/27/2023 9:14 PM, linux@...blig.org wrote:
> > > From: "Dr. David Alan Gilbert" <linux@...blig.org>
> > > 
> > > 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.
> > > 
> > > I'd love to also boil out the same code from fs/jfs/ - but that's
> > > a thought for another time (and harder since there's no good test
> > > for it).
> > > 
> > > 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
> > > 
> > > Dr. David Alan Gilbert (3):
> > >    fs/smb: Remove unicode 'lower' tables
> > >    fs/smb: Swing unicode common code from server->common
> > >    fs/smb/client: Use common code in client
> > > 
> > >   fs/smb/client/cifs_unicode.c                  |   1 -
> > >   fs/smb/client/cifs_unicode.h                  | 313 +-----------------
> > >   fs/smb/client/cifs_uniupr.h                   | 239 -------------
> > >   fs/smb/common/Makefile                        |   1 +
> > >   .../uniupr.h => common/cifs_unicode_common.c} | 156 +--------
> > >   fs/smb/common/cifs_unicode_common.h           | 279 ++++++++++++++++
> > 
> > So far so good, but please drop the "cifs_" prefix from this new file's
> > name, since its contents apply to later smb dialects as well.
> 
> Sure.

Actually, would you be ok with smb_unicode_common ?  The reason is that
you end up with a module named unicode_common  that sounds too generic.

Dave

> Dave
> 
> > Tom.
> > 
> > >   fs/smb/server/unicode.c                       |   1 -
> > >   fs/smb/server/unicode.h                       | 301 +----------------
> > >   8 files changed, 298 insertions(+), 993 deletions(-)
> > >   delete mode 100644 fs/smb/client/cifs_uniupr.h
> > >   rename fs/smb/{server/uniupr.h => common/cifs_unicode_common.c} (50%)
> > >   create mode 100644 fs/smb/common/cifs_unicode_common.h
> > > 
> -- 
>  -----Open up your eyes, open up your mind, open up your code -------   
> / Dr. David Alan Gilbert    |       Running GNU/Linux       | Happy  \ 
> \        dave @ treblig.org |                               | In Hex /
>  \ _________________________|_____ http://www.treblig.org   |_______/
-- 
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    |       Running GNU/Linux       | Happy  \ 
\        dave @ treblig.org |                               | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/