Re: [PATCH] net, bpf: use kvzalloc helper

From: kbuild test robot
Date: Thu Jan 26 2017 - 09:59:06 EST

Hi Michal,

[auto build test ERROR on next-20170125]
[cannot apply to linus/master linux/master nf-next/master v4.9-rc8 v4.9-rc7 v4.9-rc6 v4.10-rc5]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

config: x86_64-randconfig-x014-201704 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
# save the attached .config to linux build tree
make ARCH=x86_64

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

kernel/bpf/syscall.c: In function 'bpf_map_area_alloc':
>> kernel/bpf/syscall.c:61:9: error: implicit declaration of function 'kvzalloc' [-Werror=implicit-function-declaration]
return kvzalloc(size, GFP_USER);
>> kernel/bpf/syscall.c:61:9: warning: return makes pointer from integer without a cast [-Wint-conversion]
return kvzalloc(size, GFP_USER);
cc1: some warnings being treated as errors

vim +/kvzalloc +61 kernel/bpf/syscall.c

55 {
56 /*
57 * FIXME: we would really like to not trigger the OOM killer and rather
58 * fail instead. This is not supported right now. Please nag MM people
59 * if these OOM start bothering people.
60 */
> 61 return kvzalloc(size, GFP_USER);
62 }
64 void bpf_map_area_free(void *area)

0-DAY kernel test infrastructure Open Source Technology Center Intel Corporation

Attachment: .config.gz
Description: application/gzip