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Subjectcc1: error: arch/sh/include/mach-hp6xx: No such file or directory
Hi Masahiro,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d72cd4ad4174cfd2257c426ad51e4f53bcfde9c9
commit: 4c8dd95a723d9cccf8810be54aa62be82885c9d8 kbuild: add some extra warning flags unconditionally
date: 1 year, 11 months ago
config: sh-hp6xx_defconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4c8dd95a723d9cccf8810be54aa62be82885c9d8
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 4c8dd95a723d9cccf8810be54aa62be82885c9d8
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=sh

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/kernel/idle.c:32:6: error: no previous prototype for 'arch_cpu_idle_dead' [-Werror=missing-prototypes]
32 | void arch_cpu_idle_dead(void)
| ^~~~~~~~~~~~~~~~~~
arch/sh/kernel/idle.c:37:6: error: no previous prototype for 'arch_cpu_idle' [-Werror=missing-prototypes]
37 | void arch_cpu_idle(void)
| ^~~~~~~~~~~~~
arch/sh/kernel/idle.c:42:13: error: no previous prototype for 'select_idle_routine' [-Werror=missing-prototypes]
42 | void __init select_idle_routine(void)
| ^~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/kernel/machvec.c: In function 'early_parse_mv':
arch/sh/kernel/machvec.c:43:8: error: variable 'mv_comma' set but not used [-Werror=unused-but-set-variable]
43 | char *mv_comma;
| ^~~~~~~~
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/kernel/ptrace_32.c: In function 'arch_ptrace':
arch/sh/kernel/ptrace_32.c:380:26: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
380 | if ((addr & 3) || addr < 0 ||
| ^
arch/sh/kernel/ptrace_32.c:420:26: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
420 | if ((addr & 3) || addr < 0 ||
| ^
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/kernel/return_address.c:49:7: error: no previous prototype for 'return_address' [-Werror=missing-prototypes]
49 | void *return_address(unsigned int depth)
| ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/kernel/sys_sh.c:58:16: error: no previous prototype for 'sys_cacheflush' [-Werror=missing-prototypes]
58 | asmlinkage int sys_cacheflush(unsigned long addr, unsigned long len, int op)
| ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/kernel/traps_32.c:731:6: error: no previous prototype for 'per_cpu_trap_init' [-Werror=missing-prototypes]
731 | void per_cpu_trap_init(void)
| ^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/kernel/hw_breakpoint.c:135:5: error: no previous prototype for 'arch_bp_generic_fields' [-Werror=missing-prototypes]
135 | int arch_bp_generic_fields(int sh_len, int sh_type,
| ^~~~~~~~~~~~~~~~~~~~~~
arch/sh/kernel/hw_breakpoint.c: In function 'arch_bp_generic_fields':
arch/sh/kernel/hw_breakpoint.c:159:13: error: this statement may fall through [-Werror=implicit-fallthrough=]
159 | *gen_type = HW_BREAKPOINT_R;
| ~~~~~~~~~~^~~~~~~~~~~~~~~~~
arch/sh/kernel/hw_breakpoint.c:160:2: note: here
160 | case SH_BREAKPOINT_WRITE:
| ^~~~
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/mm/cache-sh3.c:93:13: error: no previous prototype for 'sh3_cache_init' [-Werror=missing-prototypes]
93 | void __init sh3_cache_init(void)
| ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/mm/fault.c:391:27: error: no previous prototype for 'do_page_fault' [-Werror=missing-prototypes]
391 | asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
| ^~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
>> cc1: error: arch/sh/include/mach-hp6xx: No such file or directory [-Werror=missing-include-dirs]
arch/sh/mm/pgtable.c:12:6: error: no previous prototype for 'pgd_ctor' [-Werror=missing-prototypes]
12 | void pgd_ctor(void *x)
| ^~~~~~~~
arch/sh/mm/pgtable.c:33:8: error: no previous prototype for 'pgd_alloc' [-Werror=missing-prototypes]
33 | pgd_t *pgd_alloc(struct mm_struct *mm)
| ^~~~~~~~~
arch/sh/mm/pgtable.c:38:6: error: no previous prototype for 'pgd_free' [-Werror=missing-prototypes]
38 | void pgd_free(struct mm_struct *mm, pgd_t *pgd)
| ^~~~~~~~
cc1: all warnings being treated as errors
..

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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