[PATCH] drm: Kconfig: Let all DRM_GEM_CMA_HELPER related macros depend on HAVE_DMA_ATTRS

[Chen Gang S]

On 2/3/15 05:26, Chen Gang S wrote:

[...]
 
> 
>  - Xtensa gcc5 cross compiler has issues:
> 
>    it causes more than 10 broken areas with allmodconfig (but no issues
>    with defconfig). I guess, in fact, it is only 1 real issue (which can
>    cause all breaks), and I shall try to fix it within this month.
>

I finish analysing for it, it is really only one issue for gcc5, and I
guess, this issue is also not only for xtensa. I send related fix patch
to gcc patch mailing list, hope it can pass checking.

The cause is "the variables are not initialized before using them", the
bug information is "https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65117".

After fix this issue, it can build xtensa Linux kernel with allmodconfig
successfully.

[...]

Thanks.
-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed