[U-Boot] [PATCH] e1000: fix bugs from recent commits

[Wolfgang Denk <wd@denx.de>]

Dear Mike Frysinger,

In message <CAJaTeTpeNDdV4g+n4cE0GVe8uBxgjUdRhrF2t=q-pOb5pAmfzg@mail.gmail.com> you wrote:
> On Fri, Oct 28, 2011 at 07:49, Wolfgang Denk wrote:
> > --- a/drivers/net/e1000.h
> > +++ b/drivers/net/e1000.h
> >
> >  #define E1000_WRITE_FLUSH(a) \
> > -       do { uint32_t x = E1000_READ_REG(a, STATUS); } while (0)
> > +       E1000_READ_REG(a, STATUS)
>
> i think we want the do{}while as this is a write command and we don't
> want people accidentally trying to check the return value

I don't see that this is a write command.  I'm seeing only reading of
the status register here.

And I don't understand the "accidentally trying to check the return
value" argument either. Why would one do that - and if one does
(probably after checking the implementation), what would be wrong
about it?


Best regards,

Wolfgang Denk

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