tree: git://git.cmpxchg.org/linux-mmotm.git master
head: 8276ddb3c638602509386f1a05f75326dbf5ce09
commit: 50973108c6444ebacff41fbdb553c156dd144c33 [113/211] mm/migrate: new memory migration helper for use with device memory
config: blackfin-allmodconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 6.2.0
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 50973108c6444ebacff41fbdb553c156dd144c33
# save the attached .config to linux build tree
make.cross ARCH=blackfin
All errors (new ones prefixed by >>):
In file included from drivers/staging/lustre/lustre/llite/rw26.c:45:0:
include/linux/migrate.h: In function 'migrate_pfn_to_page':
include/linux/migrate.h:128:32: warning: left shift count >= width of type [-Wshift-count-overflow]
#define MIGRATE_PFN_VALID (1UL << (BITS_PER_LONG_LONG - 1))
^
include/linux/migrate.h:137:15: note: in expansion of macro 'MIGRATE_PFN_VALID'
if (!(mpfn & MIGRATE_PFN_VALID))
^~~~~~~~~~~~~~~~~
In file included from include/asm-generic/page.h:97:0,
from arch/blackfin/include/asm/page.h:18,
from arch/blackfin/include/asm/thread_info.h:10,
from include/linux/thread_info.h:25,
from include/asm-generic/preempt.h:4,
from ./arch/blackfin/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:80,
from include/linux/spinlock.h:50,
from include/linux/mmzone.h:7,
from include/linux/gfp.h:5,
from include/linux/mm.h:9,
from drivers/staging/lustre/lustre/llite/rw26.c:38:
include/linux/migrate.h:133:32: warning: left shift count >= width of type [-Wshift-count-overflow]
#define MIGRATE_PFN_MASK ((1UL << (BITS_PER_LONG_LONG - PAGE_SHIFT)) - 1)
^
include/asm-generic/memory_model.h:32:41: note: in definition of macro '__pfn_to_page'
#define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET))
^~~
include/linux/migrate.h:139:28: note: in expansion of macro 'MIGRATE_PFN_MASK'
return pfn_to_page(mpfn & MIGRATE_PFN_MASK);
^~~~~~~~~~~~~~~~
In file included from drivers/staging/lustre/lustre/llite/rw26.c:45:0:
include/linux/migrate.h: In function 'migrate_pfn_size':
include/linux/migrate.h:130:31: warning: left shift count >= width of type [-Wshift-count-overflow]
#define MIGRATE_PFN_HUGE (1UL << (BITS_PER_LONG_LONG - 3))
^
include/linux/migrate.h:144:16: note: in expansion of macro 'MIGRATE_PFN_HUGE'
return mpfn & MIGRATE_PFN_HUGE ? PMD_SIZE : PAGE_SIZE;
^~~~~~~~~~~~~~~~
>> include/linux/migrate.h:144:35: error: 'PMD_SIZE' undeclared (first use in this function)
return mpfn & MIGRATE_PFN_HUGE ? PMD_SIZE : PAGE_SIZE;
^~~~~~~~
include/linux/migrate.h:144:35: note: each undeclared identifier is reported only once for each function it appears in
vim +/PMD_SIZE +144 include/linux/migrate.h
124 }
125 #endif /* CONFIG_NUMA_BALANCING && CONFIG_TRANSPARENT_HUGEPAGE*/
126
127
128 #define MIGRATE_PFN_VALID (1UL << (BITS_PER_LONG_LONG - 1))
129 #define MIGRATE_PFN_MIGRATE (1UL << (BITS_PER_LONG_LONG - 2))
> 130 #define MIGRATE_PFN_HUGE (1UL << (BITS_PER_LONG_LONG - 3))
131 #define MIGRATE_PFN_LOCKED (1UL << (BITS_PER_LONG_LONG - 4))
132 #define MIGRATE_PFN_WRITE (1UL << (BITS_PER_LONG_LONG - 5))
133 #define MIGRATE_PFN_MASK ((1UL << (BITS_PER_LONG_LONG - PAGE_SHIFT)) - 1)
134
135 static inline struct page *migrate_pfn_to_page(unsigned long mpfn)
136 {
137 if (!(mpfn & MIGRATE_PFN_VALID))
138 return NULL;
139 return pfn_to_page(mpfn & MIGRATE_PFN_MASK);
140 }
141
142 static inline unsigned long migrate_pfn_size(unsigned long mpfn)
143 {
> 144 return mpfn & MIGRATE_PFN_HUGE ? PMD_SIZE : PAGE_SIZE;
145 }
146
147 /*
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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.config.gz
Description: application/gzip
