[U-Boot-Users] [Patch 0/9] U-boot-V2: Introduce I2C support for SDP3430

[Menon, Nishanth]

Sascha,
> -----Original Message-----
> From: Sascha Hauer [mailto:s.hauer at pengutronix.de]
> Sent: Wednesday, June 18, 2008 10:28 AM
> To: Menon, Nishanth
> Cc: Timur Tabi; Laurent Desnogues; Kamat, Nishant; philip.balister at gmail.com; u-boot-
> users at lists.sourceforge.net
> Subject: Re: [U-Boot-Users] [Patch 0/9] U-boot-V2: Introduce I2C support for SDP3430
> > B) Since we use a different linking strategy in U-Boot-v2 which uses gcc link stage to decide which
> functions be retained and which not, it is pretty neat to see all unused functionality disappear.
>
> Note that this is only true when modules are disabled. Once modules are
> enabled, every function marked with EXPORT_MODULE gets linked in as you
> don't know which functions will be needed later. So please check your
> build with modules enabled.
True, in fact it will hit everything in the system. But with the same argument, the i2c module itself could then be made a module. That will help on size as required. Most default boot configuration of u-boot might probably prefer to keep things limited to not having modules and keeping size, in which case, this point might help.

Regards,
Nishanth Menon