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SubjectRe: [PATCH v3 2/2] initramfs: introduce do_readxattrs()
Hi Roberto,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.1 next-20190517]
[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/Roberto-Sassu/initramfs-set-extended-attributes/20190518-055846
config: m68k-allyesconfig (attached as .config)
compiler: m68k-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
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
GCC_VERSION=7.2.0 make.cross ARCH=m68k

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

All error/warnings (new ones prefixed by >>):

init/initramfs.c: In function 'do_readxattrs':
init/initramfs.c:437:10: error: implicit declaration of function 'vmalloc'; did you mean 'kvmalloc'? [-Werror=implicit-function-declaration]
path = vmalloc(file_entry_size);
^~~~~~~
kvmalloc
init/initramfs.c:437:8: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
path = vmalloc(file_entry_size);
^
init/initramfs.c:461:3: error: implicit declaration of function 'vfree'; did you mean 'kvfree'? [-Werror=implicit-function-declaration]
vfree(path);
^~~~~
kvfree
In file included from include/asm-generic/io.h:891:0,
from arch/m68k/include/asm/io.h:11,
from include/linux/kexec.h:19,
from init/initramfs.c:694:
include/linux/vmalloc.h: At top level:
>> include/linux/vmalloc.h:77:14: error: conflicting types for 'vmalloc'
extern void *vmalloc(unsigned long size);
^~~~~~~
init/initramfs.c:437:10: note: previous implicit declaration of 'vmalloc' was here
path = vmalloc(file_entry_size);
^~~~~~~
In file included from include/asm-generic/io.h:891:0,
from arch/m68k/include/asm/io.h:11,
from include/linux/kexec.h:19,
from init/initramfs.c:694:
>> include/linux/vmalloc.h:102:13: warning: conflicting types for 'vfree'
extern void vfree(const void *addr);
^~~~~
init/initramfs.c:461:3: note: previous implicit declaration of 'vfree' was here
vfree(path);
^~~~~
cc1: some warnings being treated as errors

vim +/vmalloc +77 include/linux/vmalloc.h

db64fe02 Nick Piggin 2008-10-18 76
^1da177e Linus Torvalds 2005-04-16 @77 extern void *vmalloc(unsigned long size);
e1ca7788 Dave Young 2010-10-26 78 extern void *vzalloc(unsigned long size);
83342314 Nick Piggin 2006-06-23 79 extern void *vmalloc_user(unsigned long size);
930fc45a Christoph Lameter 2005-10-29 80 extern void *vmalloc_node(unsigned long size, int node);
e1ca7788 Dave Young 2010-10-26 81 extern void *vzalloc_node(unsigned long size, int node);
^1da177e Linus Torvalds 2005-04-16 82 extern void *vmalloc_exec(unsigned long size);
^1da177e Linus Torvalds 2005-04-16 83 extern void *vmalloc_32(unsigned long size);
83342314 Nick Piggin 2006-06-23 84 extern void *vmalloc_32_user(unsigned long size);
dd0fc66f Al Viro 2005-10-07 85 extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
d0a21265 David Rientjes 2011-01-13 86 extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
d0a21265 David Rientjes 2011-01-13 87 unsigned long start, unsigned long end, gfp_t gfp_mask,
cb9e3c29 Andrey Ryabinin 2015-02-13 88 pgprot_t prot, unsigned long vm_flags, int node,
cb9e3c29 Andrey Ryabinin 2015-02-13 89 const void *caller);
1f5307b1 Michal Hocko 2017-05-08 90 #ifndef CONFIG_MMU
a7c3e901 Michal Hocko 2017-05-08 91 extern void *__vmalloc_node_flags(unsigned long size, int node, gfp_t flags);
8594a21c Michal Hocko 2017-05-12 92 static inline void *__vmalloc_node_flags_caller(unsigned long size, int node,
8594a21c Michal Hocko 2017-05-12 93 gfp_t flags, void *caller)
1f5307b1 Michal Hocko 2017-05-08 94 {
8594a21c Michal Hocko 2017-05-12 95 return __vmalloc_node_flags(size, node, flags);
1f5307b1 Michal Hocko 2017-05-08 96 }
8594a21c Michal Hocko 2017-05-12 97 #else
8594a21c Michal Hocko 2017-05-12 98 extern void *__vmalloc_node_flags_caller(unsigned long size,
8594a21c Michal Hocko 2017-05-12 99 int node, gfp_t flags, void *caller);
1f5307b1 Michal Hocko 2017-05-08 100 #endif
cb9e3c29 Andrey Ryabinin 2015-02-13 101
b3bdda02 Christoph Lameter 2008-02-04 @102 extern void vfree(const void *addr);
bf22e37a Andrey Ryabinin 2016-12-12 103 extern void vfree_atomic(const void *addr);
^1da177e Linus Torvalds 2005-04-16 104

:::::: The code at line 77 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

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