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Message-ID: <202007290732.9JJJxoje%lkp@intel.com>
Date: Wed, 29 Jul 2020 07:52:50 +0800
From: kernel test robot <lkp@...el.com>
To: Nicholas Piggin <npiggin@...il.com>, linux-arch@...r.kernel.org
Cc: kbuild-all@...ts.01.org, Nicholas Piggin <npiggin@...il.com>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 01/24] asm-generic: add generic versions of mmu context
functions
Hi Nicholas,
I love your patch! Yet something to improve:
[auto build test ERROR on openrisc/for-next]
[also build test ERROR on sparc-next/master sparc/master linus/master asm-generic/master xtensa/for_next v5.8-rc7 next-20200728]
[cannot apply to nios2/for-linus]
[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]
url: https://github.com/0day-ci/linux/commits/Nicholas-Piggin/Use-asm-generic-for-mmu_context-no-op-functions/20200728-113854
base: https://github.com/openrisc/linux.git for-next
config: sh-allmodconfig (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
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All error/warnings (new ones prefixed by >>):
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/process_32.c:26:
include/asm-generic/mmu_context.h: In function 'activate_mm':
include/asm-generic/mmu_context.h:59:2: error: implicit declaration of function 'switch_mm' [-Werror=implicit-function-declaration]
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
In file included from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/process_32.c:26:
include/asm-generic/nommu_context.h: At top level:
include/asm-generic/nommu_context.h:13:20: error: conflicting types for 'switch_mm' [-Werror]
13 | static inline void switch_mm(struct mm_struct *prev,
| ^~~~~~~~~
>> include/asm-generic/nommu_context.h:13:20: error: static declaration of 'switch_mm' follows non-static declaration
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/process_32.c:26:
include/asm-generic/mmu_context.h:59:2: note: previous implicit declaration of 'switch_mm' was here
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
cc1: all warnings being treated as errors
--
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/setup.c:44:
include/asm-generic/mmu_context.h: In function 'activate_mm':
include/asm-generic/mmu_context.h:59:2: error: implicit declaration of function 'switch_mm' [-Werror=implicit-function-declaration]
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
In file included from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/setup.c:44:
include/asm-generic/nommu_context.h: At top level:
include/asm-generic/nommu_context.h:13:20: error: conflicting types for 'switch_mm' [-Werror]
13 | static inline void switch_mm(struct mm_struct *prev,
| ^~~~~~~~~
>> include/asm-generic/nommu_context.h:13:20: error: static declaration of 'switch_mm' follows non-static declaration
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/setup.c:44:
include/asm-generic/mmu_context.h:59:2: note: previous implicit declaration of 'switch_mm' was here
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
arch/sh/kernel/setup.c:248:12: error: no previous prototype for 'sh_fdt_init' [-Werror=missing-prototypes]
248 | void __ref sh_fdt_init(phys_addr_t dt_phys)
| ^~~~~~~~~~~
cc1: all warnings being treated as errors
--
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/hw_breakpoint.c:21:
include/asm-generic/mmu_context.h: In function 'activate_mm':
include/asm-generic/mmu_context.h:59:2: error: implicit declaration of function 'switch_mm' [-Werror=implicit-function-declaration]
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
In file included from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/hw_breakpoint.c:21:
include/asm-generic/nommu_context.h: At top level:
include/asm-generic/nommu_context.h:13:20: error: conflicting types for 'switch_mm' [-Werror]
13 | static inline void switch_mm(struct mm_struct *prev,
| ^~~~~~~~~
>> include/asm-generic/nommu_context.h:13:20: error: static declaration of 'switch_mm' follows non-static declaration
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/hw_breakpoint.c:21:
include/asm-generic/mmu_context.h:59:2: note: previous implicit declaration of 'switch_mm' was here
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
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,
| ^~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
--
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/cpu/init.c:14:
include/asm-generic/mmu_context.h: In function 'activate_mm':
include/asm-generic/mmu_context.h:59:2: error: implicit declaration of function 'switch_mm' [-Werror=implicit-function-declaration]
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
In file included from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/cpu/init.c:14:
include/asm-generic/nommu_context.h: At top level:
>> include/asm-generic/nommu_context.h:13:20: warning: conflicting types for 'switch_mm'
13 | static inline void switch_mm(struct mm_struct *prev,
| ^~~~~~~~~
>> include/asm-generic/nommu_context.h:13:20: error: static declaration of 'switch_mm' follows non-static declaration
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from arch/sh/kernel/cpu/init.c:14:
include/asm-generic/mmu_context.h:59:2: note: previous implicit declaration of 'switch_mm' was here
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
arch/sh/kernel/cpu/init.c:99:29: warning: no previous prototype for 'l2_cache_init' [-Wmissing-prototypes]
99 | void __attribute__ ((weak)) l2_cache_init(void)
| ^~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from kernel/fork.c:101:
include/asm-generic/mmu_context.h: In function 'activate_mm':
include/asm-generic/mmu_context.h:59:2: error: implicit declaration of function 'switch_mm' [-Werror=implicit-function-declaration]
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
In file included from arch/sh/include/asm/mmu_context.h:137,
from kernel/fork.c:101:
include/asm-generic/nommu_context.h: At top level:
>> include/asm-generic/nommu_context.h:13:20: warning: conflicting types for 'switch_mm'
13 | static inline void switch_mm(struct mm_struct *prev,
| ^~~~~~~~~
>> include/asm-generic/nommu_context.h:13:20: error: static declaration of 'switch_mm' follows non-static declaration
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from kernel/fork.c:101:
include/asm-generic/mmu_context.h:59:2: note: previous implicit declaration of 'switch_mm' was here
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
cc1: some warnings being treated as errors
--
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from kernel/exit.c:69:
include/asm-generic/mmu_context.h: In function 'activate_mm':
include/asm-generic/mmu_context.h:59:2: error: implicit declaration of function 'switch_mm' [-Werror=implicit-function-declaration]
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
In file included from arch/sh/include/asm/mmu_context.h:137,
from kernel/exit.c:69:
include/asm-generic/nommu_context.h: At top level:
>> include/asm-generic/nommu_context.h:13:20: warning: conflicting types for 'switch_mm'
13 | static inline void switch_mm(struct mm_struct *prev,
| ^~~~~~~~~
>> include/asm-generic/nommu_context.h:13:20: error: static declaration of 'switch_mm' follows non-static declaration
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from kernel/exit.c:69:
include/asm-generic/mmu_context.h:59:2: note: previous implicit declaration of 'switch_mm' was here
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
kernel/exit.c:1714:13: warning: no previous prototype for 'abort' [-Wmissing-prototypes]
1714 | __weak void abort(void)
| ^~~~~
cc1: some warnings being treated as errors
--
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from include/linux/mmu_context.h:5,
from kernel/sched/sched.h:54,
from kernel/sched/rt.c:6:
include/asm-generic/mmu_context.h: In function 'activate_mm':
include/asm-generic/mmu_context.h:59:2: error: implicit declaration of function 'switch_mm' [-Werror=implicit-function-declaration]
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
In file included from arch/sh/include/asm/mmu_context.h:137,
from include/linux/mmu_context.h:5,
from kernel/sched/sched.h:54,
from kernel/sched/rt.c:6:
include/asm-generic/nommu_context.h: At top level:
>> include/asm-generic/nommu_context.h:13:20: warning: conflicting types for 'switch_mm'
13 | static inline void switch_mm(struct mm_struct *prev,
| ^~~~~~~~~
>> include/asm-generic/nommu_context.h:13:20: error: static declaration of 'switch_mm' follows non-static declaration
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from include/linux/mmu_context.h:5,
from kernel/sched/sched.h:54,
from kernel/sched/rt.c:6:
include/asm-generic/mmu_context.h:59:2: note: previous implicit declaration of 'switch_mm' was here
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
kernel/sched/rt.c:668:6: warning: no previous prototype for 'sched_rt_bandwidth_account' [-Wmissing-prototypes]
668 | bool sched_rt_bandwidth_account(struct rt_rq *rt_rq)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from mm/nommu.c:43:
include/asm-generic/mmu_context.h: In function 'activate_mm':
include/asm-generic/mmu_context.h:59:2: error: implicit declaration of function 'switch_mm' [-Werror=implicit-function-declaration]
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
In file included from arch/sh/include/asm/mmu_context.h:137,
from mm/nommu.c:43:
include/asm-generic/nommu_context.h: At top level:
>> include/asm-generic/nommu_context.h:13:20: warning: conflicting types for 'switch_mm'
13 | static inline void switch_mm(struct mm_struct *prev,
| ^~~~~~~~~
>> include/asm-generic/nommu_context.h:13:20: error: static declaration of 'switch_mm' follows non-static declaration
In file included from include/asm-generic/nommu_context.h:11,
from arch/sh/include/asm/mmu_context.h:137,
from mm/nommu.c:43:
include/asm-generic/mmu_context.h:59:2: note: previous implicit declaration of 'switch_mm' was here
59 | switch_mm(prev_mm, next_mm, current);
| ^~~~~~~~~
mm/nommu.c:1665:15: warning: no previous prototype for 'arch_get_unmapped_area' [-Wmissing-prototypes]
1665 | unsigned long arch_get_unmapped_area(struct file *file, unsigned long addr,
| ^~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/switch_mm +13 include/asm-generic/nommu_context.h
12
> 13 static inline void switch_mm(struct mm_struct *prev,
14 struct mm_struct *next,
15 struct task_struct *tsk)
16 {
17 }
18
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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