Re: [PATCH V5 2/4] LoongArch: Add sparse memory vmemmap support

From: kernel test robot
Date: Sun Jul 24 2022 - 00:08:39 EST


Hi Huacai,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on soc/for-next]
[also build test ERROR on linus/master v5.19-rc7 next-20220722]
[cannot apply to akpm-mm/mm-everything tip/x86/mm]
[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/Huacai-Chen/mm-sparse-vmemmap-Generalise-helpers-and-enable-for-LoongArch/20220721-211006
base: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
config: loongarch-allnoconfig (https://download.01.org/0day-ci/archive/20220724/202207241100.dTmn1Js6-lkp@xxxxxxxxx/config)
compiler: loongarch64-linux-gcc (GCC) 12.1.0
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://github.com/intel-lab-lkp/linux/commit/46a065b827f834b046cffafc7fa165b6fadd9c5c
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Huacai-Chen/mm-sparse-vmemmap-Generalise-helpers-and-enable-for-LoongArch/20220721-211006
git checkout 46a065b827f834b046cffafc7fa165b6fadd9c5c
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

fs/proc/meminfo.c:22:28: warning: no previous prototype for 'arch_report_meminfo' [-Wmissing-prototypes]
22 | void __attribute__((weak)) arch_report_meminfo(struct seq_file *m)
| ^~~~~~~~~~~~~~~~~~~
In file included from arch/loongarch/include/asm/uaccess.h:17,
from include/linux/uaccess.h:11,
from include/linux/sched/task.h:11,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:33,
from fs/proc/meminfo.c:2:
fs/proc/meminfo.c: In function 'meminfo_proc_show':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
include/linux/vmalloc.h:286:24: note: in expansion of macro 'VMALLOC_END'
286 | #define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START)
| ^~~~~~~~~~~
fs/proc/meminfo.c:127:35: note: in expansion of macro 'VMALLOC_TOTAL'
127 | (unsigned long)VMALLOC_TOTAL >> 10);
| ^~~~~~~~~~~~~
arch/loongarch/include/asm/pgtable.h:95:119: note: each undeclared identifier is reported only once for each function it appears in
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
include/linux/vmalloc.h:286:24: note: in expansion of macro 'VMALLOC_END'
286 | #define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START)
| ^~~~~~~~~~~
fs/proc/meminfo.c:127:35: note: in expansion of macro 'VMALLOC_TOTAL'
127 | (unsigned long)VMALLOC_TOTAL >> 10);
| ^~~~~~~~~~~~~
--
In file included from include/linux/pgtable.h:6,
from include/linux/mm.h:29,
from mm/util.c:2:
mm/util.c: In function 'kvmalloc_node':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/util.c:634:61: note: in expansion of macro 'VMALLOC_END'
634 | return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
| ^~~~~~~~~~~
arch/loongarch/include/asm/pgtable.h:95:119: note: each undeclared identifier is reported only once for each function it appears in
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/util.c:634:61: note: in expansion of macro 'VMALLOC_END'
634 | return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
| ^~~~~~~~~~~
mm/util.c:637:1: error: control reaches end of non-void function [-Werror=return-type]
637 | }
| ^
cc1: some warnings being treated as errors
--
In file included from include/linux/pgtable.h:6,
from include/linux/mm.h:29,
from mm/vmalloc.c:12:
mm/vmalloc.c: In function 'is_vmalloc_addr':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:79:48: note: in expansion of macro 'VMALLOC_END'
79 | return addr >= VMALLOC_START && addr < VMALLOC_END;
| ^~~~~~~~~~~
arch/loongarch/include/asm/pgtable.h:95:119: note: each undeclared identifier is reported only once for each function it appears in
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:79:48: note: in expansion of macro 'VMALLOC_END'
79 | return addr >= VMALLOC_START && addr < VMALLOC_END;
| ^~~~~~~~~~~
mm/vmalloc.c: In function 'new_vmap_block':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:1915:56: note: in expansion of macro 'VMALLOC_END'
1915 | VMALLOC_START, VMALLOC_END,
| ^~~~~~~~~~~
In file included from include/linux/build_bug.h:5,
from include/linux/container_of.h:5,
from include/linux/list.h:5,
from include/linux/preempt.h:11,
from include/linux/spinlock.h:55,
from include/linux/vmalloc.h:5,
from mm/vmalloc.c:11:
mm/vmalloc.c: In function 'vm_unmap_ram':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
include/linux/compiler.h:78:45: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
mm/vmalloc.c:2166:9: note: in expansion of macro 'BUG_ON'
2166 | BUG_ON(addr > VMALLOC_END);
| ^~~~~~
mm/vmalloc.c:2166:23: note: in expansion of macro 'VMALLOC_END'
2166 | BUG_ON(addr > VMALLOC_END);
| ^~~~~~~~~~~
mm/vmalloc.c: In function 'vm_map_ram':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:2213:48: note: in expansion of macro 'VMALLOC_END'
2213 | VMALLOC_START, VMALLOC_END, node, GFP_KERNEL);
| ^~~~~~~~~~~
mm/vmalloc.c: In function 'vm_area_register_early':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
include/linux/compiler.h:78:45: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
mm/vmalloc.c:2309:9: note: in expansion of macro 'BUG_ON'
2309 | BUG_ON(addr > VMALLOC_END - vm->size);
| ^~~~~~
mm/vmalloc.c:2309:23: note: in expansion of macro 'VMALLOC_END'
2309 | BUG_ON(addr > VMALLOC_END - vm->size);
| ^~~~~~~~~~~
mm/vmalloc.c: In function 'get_vm_area':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:2498:50: note: in expansion of macro 'VMALLOC_END'
2498 | VMALLOC_START, VMALLOC_END,
| ^~~~~~~~~~~
mm/vmalloc.c: In function 'get_vm_area_caller':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:2507:50: note: in expansion of macro 'VMALLOC_END'
2507 | VMALLOC_START, VMALLOC_END,
| ^~~~~~~~~~~
mm/vmalloc.c: In function '__vmalloc_node':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:3230:65: note: in expansion of macro 'VMALLOC_END'
3230 | return __vmalloc_node_range(size, align, VMALLOC_START, VMALLOC_END,
| ^~~~~~~~~~~
mm/vmalloc.c: In function 'vmalloc_huge':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:3282:61: note: in expansion of macro 'VMALLOC_END'
3282 | return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
| ^~~~~~~~~~~
mm/vmalloc.c: In function 'vmalloc_user':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:3319:67: note: in expansion of macro 'VMALLOC_END'
3319 | return __vmalloc_node_range(size, SHMLBA, VMALLOC_START, VMALLOC_END,
| ^~~~~~~~~~~
mm/vmalloc.c: In function 'vmalloc_32_user':
>> arch/loongarch/include/asm/pgtable.h:95:119: error: 'VMEMMAP_SIZE' undeclared (first use in this function); did you mean 'VMEMMAP_END'?
95 | min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
| ^~~~~~~~~~~~
mm/vmalloc.c:3403:67: note: in expansion of macro 'VMALLOC_END'
3403 | return __vmalloc_node_range(size, SHMLBA, VMALLOC_START, VMALLOC_END,
| ^~~~~~~~~~~
mm/vmalloc.c: In function 'is_vmalloc_addr':
mm/vmalloc.c:80:1: error: control reaches end of non-void function [-Werror=return-type]
80 | }
| ^
mm/vmalloc.c: In function 'get_vm_area':
mm/vmalloc.c:2501:1: error: control reaches end of non-void function [-Werror=return-type]
2501 | }
| ^
mm/vmalloc.c: In function 'get_vm_area_caller':
mm/vmalloc.c:2509:1: error: control reaches end of non-void function [-Werror=return-type]
2509 | }
| ^
mm/vmalloc.c: In function '__vmalloc_node':
mm/vmalloc.c:3232:1: error: control reaches end of non-void function [-Werror=return-type]
3232 | }
| ^
mm/vmalloc.c: In function 'vmalloc_huge':
mm/vmalloc.c:3285:1: error: control reaches end of non-void function [-Werror=return-type]
3285 | }
| ^
mm/vmalloc.c: In function 'vmalloc_user':
mm/vmalloc.c:3323:1: error: control reaches end of non-void function [-Werror=return-type]
3323 | }
| ^
mm/vmalloc.c: In function 'vmalloc_32_user':
mm/vmalloc.c:3407:1: error: control reaches end of non-void function [-Werror=return-type]
3407 | }
| ^
cc1: some warnings being treated as errors


vim +95 arch/loongarch/include/asm/pgtable.h

91
92 #define VMALLOC_START MODULES_END
93 #define VMALLOC_END \
94 (vm_map_base + \
> 95 min(PTRS_PER_PGD * PTRS_PER_PUD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE, (1UL << cpu_vabits)) - PMD_SIZE - VMEMMAP_SIZE)
96

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