[U-Boot] [PATCH v4 01/20] common: spl_fit: Fix the spl_fit_image_get_os for FIT_IMAGE_TINY

[Abel Vesa]

On 19-02-16 10:23:10, Stefano Babic wrote:
> Hi Abel,
> 
> On 01/02/19 17:40, Abel Vesa wrote:
> > There is not really reducing codesize here since there is only
> > a call. The function is always built in if CONFIG_$(SPL_TPL_)FIT is set.
> > Plus, there was a change in behavior if CONFIG_SPL_OS_BOOT is defined.
> > If CONFIG_FIT_IMAGE_TINY is defined, the spl_fit_image_get_os was
> > returning -ENOTSUPP and then if CONFIG_SPL_OS_BOOT was also
> > defined, the spl_image->os was left set to 0 which in turn
> > was skipping the fdt appending resulting in boot-up failure.
> > 
> 
> Really there is a difference in codesize, even if it looks like a side
> effect. This patch breaks build for sun8i and sun50i due to increased
> size. So I have to drop this patch and I applied the rest of the series
> to u-boot-imx.
> 

Ok then, but the real problem here is the fact that the spl_image->os remains
unset. And, as per the comment from the common/spl/spl_fit.c call site, the
fallback should be setting to IH_OS_U_BOOT. See below.

> Best regards,
> Stefano Babic
> 
> > Fixes: 337bbb6297775e spl: fit: add SPL_FIT_IMAGE_TINY config to reduce code-size
> > Signed-off-by: Abel Vesa <abel.vesa at nxp.com>
> > ---
> >  common/spl/spl_fit.c | 4 ----
> >  1 file changed, 4 deletions(-)
> > 
> > diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
> > index db43626..a87d02d 100644
> > --- a/common/spl/spl_fit.c
> > +++ b/common/spl/spl_fit.c
> > @@ -333,11 +333,7 @@ static int spl_fit_record_loadable(const void *fit, int images, int index,
> >  
> >  static int spl_fit_image_get_os(const void *fit, int noffset, uint8_t *os)
> >  {
#if CONFIG_IS_ENABLED(FIT_IMAGE_TINY)

So I guess we can keep as it was before but add the following line here then:
+	*os = IH_OS_U_BOOT;

Let me know if I'm missing something here.

	return -ENOTSUPP;
#else
 	return fit_image_get_os(fit, noffset, os);
#endif
> >  }
> >  
> >  int spl_load_simple_fit(struct spl_image_info *spl_image,
> > 
> 
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