[openeuler:OLK-5.10 3011/3011] arch/arm64/kernel/syscall.c:281:6: warning: no previous prototype for 'do_el0_xcall'

[openeuler:OLK-5.10 3011/3011] arch/arm64/kernel/syscall.c:281:6: warning: no previous prototype for 'do_el0_xcall'

[kernel test robot]

tree:   https://gitee.com/openeuler/kernel.git OLK-5.10
head:   d33d9222dd0abdddb305cbcd6dddf6763e0bcd5a
commit: f22cbd7df3438fb008e74ddcbe6619c1a03c7955 [3011/3011] arm64: Faster SVC exception handler with xcall
config: arm64-randconfig-001-20250704 (https://download.01.org/0day-ci/archive/20250704/202507041422.jQntADhM-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250704/202507041422.jQntADhM-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/202507041422.jQntADhM-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/arm64/kernel/syscall.c:281:6: warning: no previous prototype for 'do_el0_xcall' [-Wmissing-prototypes]
     281 | void do_el0_xcall(struct pt_regs *regs)
         |      ^~~~~~~~~~~~
   arch/arm64/kernel/syscall.c:297:6: warning: no previous prototype for 'do_el0_svc' [-Wmissing-prototypes]
     297 | void do_el0_svc(struct pt_regs *regs)
         |      ^~~~~~~~~~
   arch/arm64/kernel/syscall.c:313:6: warning: no previous prototype for 'do_el0_svc_compat' [-Wmissing-prototypes]
     313 | void do_el0_svc_compat(struct pt_regs *regs)
         |      ^~~~~~~~~~~~~~~~~


vim +/do_el0_xcall +281 arch/arm64/kernel/syscall.c

   279	
   280	#ifdef CONFIG_FAST_SYSCALL
 > 281	void do_el0_xcall(struct pt_regs *regs)
   282	{
   283		const syscall_fn_t *t = sys_call_table;
   284	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki