On 01/29/2016 07:55 PM, Paul Gortmaker wrote:

[Re: [PATCH tip v6 2/5] kbuild: Add option to turn incompatible pointer check into error] On 29/01/2016 (Fri 13:17) Daniel Wagner wrote:

quoted

On 01/28/2016 03:44 PM, Daniel Wagner wrote:

quoted

+# enforce correct pointer usage
+KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types)
+

As it turns out there are a few fallouts by that one. I'll send fixes
for it.

Did you try non-x86 builds with this applied?   I'd be really surprised
if there were just a few, once you did allyesconfig/allmodconfig for
ARM, MIPS, PPC, etc.

I have tried this with non-x86 builds and apart of a few problems all
looked fine. As it turns out I was using too old cross tools from
kernel.org [1]. Luckily Fengguang's kbuild robot did catch a bunch of
them (see the patches in this series).

Since Thomas was also surprised that only a bunch of them showed up,
I'll better give it another go with more recent compilers.

cheers,
daniel

[1] https://www.kernel.org/pub/tools/crosstool