Re: [PATCH 0/4] Small fixes in barebox

[Sascha Hauer <s.hauer@pengutronix.de>]

On Thu, Feb 07, 2013 at 09:36:16PM +0100, Alexander Aring wrote:
> First I tried to change getopt optstring argument to "const char *"
> and I test it with an allyesconfig for compiler warnings.
> 
> Then there popup some compile errors, which I tried to fix.
> 
> I am not happy with some of these solutions. Maybe someone have an idea
> how we can make it better.
> 
> hush: add getopt only if it enabled
>  - I don't know if this needs a fix. But if we disable getopt there is a
>    no-op getopt implementation in the command list. This patch don't add
>    getopt to the command list at runtime, but the no-op implementation is
>    still there. Maybe a compiletime solution is better to remove the
>    no-op implementation.

I don't understand. getopt is not there if CONFIG_HUSH_GETOPT is
disabled. It's ifdeffed out.

> 
> sata-imx: fix depends on ARCH_IMX
>  - I am not sure but this looks like ARCH_IMX related things. I got a error
>    that some imx51 header files could'nt be found.

That's fine you did this. Another option would be to move the header
file to include/, but currently this is not worth it.

> 
> net: fix cpsw depends on ARCH_OMAP
>  - Same thing like sata-imx. I got a compile error that mach/cpsw.h wasn't
>    found. I only found that in the omap implementation.

Also fine.

> 
> 
> Another (maybe toolchain related issue) is:
> barebox/lib/libubigen.c:105: undefined reference to `__divdi3'
> 
> Is it in this line:
> 
> tmp = (vi->bytes + ui->leb_size - 1) / ui->leb_size;
> 
> If we know that ui->leb_size is a power-of-two, we can use a shift for this
> instead of division. But I don't know if leb_size a power-of-two number.

leb_size (logical erase block size) is never a power of two. This is the
peb size (physical erase block size) minus the ubi metadata.

Sascha

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