Re: [PATCH] s390/uapi: Remove obsolete unistd_32.h from Kbuild file

[Alexander Gordeev <agordeev@linux.ibm.com>]

On Thu, Jul 09, 2026 at 07:57:15AM +0200, Heiko Carstens wrote:
> > On repeated builds it results in:
> > 
> >   SYSHDR  arch/s390/include/generated/uapi/asm/unistd_32.h
> >   REMOVE  arch/s390/include/generated/uapi/asm/unistd_32.h
> 
> How did you achieve that unistd_32.h is actually generated? The required
> syscall table information to generate such a header file is not present.
> This looks very odd to me.
> 
> The above should be impossible with current upstream code, and I cannot
> reproduce it. Any chance you applied Thomas' patch on top of an old commit
> which still includes compat support?

I can not reproduce it anymore of course, but I am pretty sure I was
trying exactly that :/

> > A complete removal would require changes to arch/s390/kernel/syscalls/Makefile
> > at least,
> 
> I don't think so.
> 
> > but we still  might want to have unistd_32.h around.
> 
> No, that doesn't make sense. compat support is completely gone, including all
> header files. The patch looks fine as it is for me, but we need to sort out
> what you reported.

Yes, my report is false. Sorry for the noise.

Thanks!