Re: [peterz-queue:x86/urgent 4/5] arch/x86/kernel/alternative.c:264:14: error: call to undeclared function 'its_alloc'; ISO C99 and later do not support implicit function declarations

[Peter Zijlstra <peterz@infradead.org>]

On Fri, Jun 06, 2025 at 03:23:09AM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/urgent
> head:   e87348e4a2daaf44da409991ca751e8844b27ef8
> commit: 01c48b9466bf0ecf95821e3ea1a58b876c4e8aaf [4/5] x86/its: explicitly manage permissions for ITS pages
> config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250606/202506060355.7UJHIyDa-lkp@intel.com/config)
> compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
> rustc: rustc 1.78.0 (9b00956e5 2024-04-29)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250606/202506060355.7UJHIyDa-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202506060355.7UJHIyDa-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
> >> arch/x86/kernel/alternative.c:264:14: error: call to undeclared function 'its_alloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>      264 |                 its_page = its_alloc();
>          |                            ^

*sigh*... obviously I failed both typing and compiling before pushing
things out. Lets try this again ;-)