[U-Boot] Intel Edison build warning

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Fri, 2017-11-24 at 17:42 +0200, Andy Shevchenko wrote:
> On Fri, 2017-11-24 at 16:06 +0800, Bin Meng wrote:
> > Hi,
> > 
> > Intel Edison has a build warning below.
> > 
> > +  *env_addr = offset;
> > +            ^
> > w+../env/mmc.c: In function 'mmc_get_env_addr':
> > w+../env/mmc.c:121:12: warning: 'val' may be used uninitialized in
> > this function [-Wmaybe-uninitialized]
> > 
> > I did not figure out what is wrong here. v2017.11 does not have such
> > build warning.
> > 
> > Do you have any idea?

Somewhat compiler goes crazy?

I have a theory that instead of showing actual potential issues (which
are bogus anyway) it complains on __weak function instead.

The real complains might be env_mmc_load() / env_mmc_save() where
offset* is uninitialized indeed.

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy