Re: [PATCH] um: Fix misaligned stack in stub_exe

Re: [PATCH] um: Fix misaligned stack in stub_exe

[kernel test robot]

Hi David,

kernel test robot noticed the following build errors:

[auto build test ERROR on uml/next]
[also build test ERROR on next-20241018]
[cannot apply to linus/master v6.12-rc3]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/David-Gow/um-Fix-misaligned-stack-in-stub_exe/20241018-071148
base:   https://git.kernel.org/pub/scm/linux/kernel/git/uml/linux next
patch link:    https://lore.kernel.org/r/20241017231007.1500497-2-davidgow%40google.com
patch subject: [PATCH] um: Fix misaligned stack in stub_exe
config: um-allnoconfig (https://download.01.org/0day-ci/archive/20241019/202410190227.cYsvc9ss-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241019/202410190227.cYsvc9ss-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/202410190227.cYsvc9ss-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/um/kernel/skas/stub_exe.c:84:2: error: non-ASM statement in naked function is not supported
      84 |         char *alloc;
         |         ^
   arch/um/kernel/skas/stub_exe.c:82:16: note: attribute is here
      82 | __attribute__((naked)) void _start(void)
         |                ^
   1 error generated.


vim +84 arch/um/kernel/skas/stub_exe.c

32e8eaf263d9be Benjamin Berg 2024-09-19  81  
ae9ffda02a9904 David Gow     2024-10-18  82  __attribute__((naked)) void _start(void)
32e8eaf263d9be Benjamin Berg 2024-09-19  83  {
32e8eaf263d9be Benjamin Berg 2024-09-19 @84  	char *alloc;

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