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SubjectRe: [PATCH 15/18] mm/vchecker: pass allocation caller address to vchecker hook
Hi Joonsoo,

I love your patch! Yet something to improve:

[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.15-rc1 next-20171130]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/js1304-gmail-com/introduce-a-new-tool-valid-access-checker/20171201-090908
base: git://git.cmpxchg.org/linux-mmotm.git master
config: x86_64-randconfig-x011-201748 (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

In file included from include/linux/crypto.h:24:0,
from arch/x86/kernel/asm-offsets.c:9:
include/linux/slab.h: In function 'kmem_cache_alloc_trace':
>> include/linux/slab.h:424:2: error: implicit declaration of function 'vchecker_kmalloc'; did you mean '__kmalloc'? [-Werror=implicit-function-declaration]
vchecker_kmalloc(s, ret, size, _THIS_IP_);
^~~~~~~~~~~~~~~~
__kmalloc
cc1: some warnings being treated as errors
make[2]: *** [arch/x86/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [sub-make] Error 2

vim +424 include/linux/slab.h

416
417 #else /* CONFIG_TRACING */
418 static __always_inline void *kmem_cache_alloc_trace(struct kmem_cache *s,
419 gfp_t flags, size_t size)
420 {
421 void *ret = kmem_cache_alloc(s, flags);
422
423 kasan_kmalloc(s, ret, size, flags);
> 424 vchecker_kmalloc(s, ret, size, _THIS_IP_);
425 return ret;
426 }
427

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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