[U-Boot] [PATCH 0/6] add zip command support for uboot

[Marek Vasut]

Dear Lei Wen,

> On Thu, Sep 6, 2012 at 6:49 PM, Marek Vasut <marex at denx.de> wrote:
> > Dear Lukasz Majewski,
> > 
> > [...]
> > 
> > > > Ok, that means we can make use of this command ?
> > > 
> > > I cannot promise, that I will provide the "zip" support straightaway in
> > > the DFU.
> > > 
> > > On the one hand if DFU is the only user of this command we are adding
> > > in fact a "dead" code.
> > > On the other hand we can use proper #define CONFIG_CMD_ZIP to not
> > > compile it until we "really" use this.
> > 
> > I'd rather see a user and code added, not the other way.
> 
> common/cmd_zip.c is another user. :)

I'm OK with this one.

> And file systems could use the zip callback to directly create the zipped
> file.

Definitelly not ... zip callback for FS is wrong.

> Since current ext4 and fat in uboot support write function, I think it
> could be
> a potential feature to add.

cmd_zip + fs write call is OK. But why do we need to zip anything in uboot, 
what's the usecase?


> > > Are there any other potential "users" of this functionality (ZIP
> > > compression/decompression) in u-boot?
> > 
> > None that I know of. Is it really zip or is it gzip ?
> 
> It is porting from zlib, and is there any different for the compression
> side for
> zip and gzip?

I ain't no expert, so I'm asking

> This patch is pending for too long time, do we have a answer now whether
> it could be merged?

Ccing Tom

> Thanks,
> Lei

Best regards,
Marek Vasut