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Message-ID: <201903010226.fC6ShFo2%fengguang.wu@intel.com>
Date: Fri, 1 Mar 2019 02:45:26 +0800
From: kbuild test robot <lkp@...el.com>
To: Toke Høiland-Jørgensen <toke@...hat.com>
Cc: kbuild-all@...org, David Miller <davem@...emloft.net>,
netdev@...r.kernel.org, Jesper Dangaard Brouer <brouer@...hat.com>,
Daniel Borkmann <daniel@...earbox.net>,
Alexei Starovoitov <ast@...nel.org>,
Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: Re: [PATCH net-next 2 3/3] xdp: Add devmap_idx map type for looking
up devices by ifindex
Hi Toke,
I love your patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
url: https://github.com/0day-ci/linux/commits/Toke-H-iland-J-rgensen/xdp-Refactor-devmap-code-in-preparation-for-subsequent-additions/20190301-020259
config: x86_64-randconfig-x016-201908 (attached as .config)
compiler: gcc-8 (Debian 8.2.0-21) 8.2.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All warnings (new ones prefixed by >>):
In file included from include/linux/bpf-cgroup.h:5,
from include/linux/cgroup-defs.h:22,
from include/linux/cgroup.h:28,
from include/net/netprio_cgroup.h:17,
from include/linux/netdevice.h:46,
from include/linux/if_vlan.h:15,
from include/linux/filter.h:22,
from kernel//bpf/core.c:25:
include/linux/bpf.h: In function 'dev_map_inc_redirect_count':
include/linux/bpf.h:731:1: warning: no return statement in function returning non-void [-Wreturn-type]
}
^
include/linux/bpf.h: At top level:
>> include/linux/bpf.h:738:13: warning: 'struct bpf_dtab_netdev' declared inside parameter list will not be visible outside of this definition or declaration
struct bpf_dtab_netdev *dst)
^~~~~~~~~~~~~~~
vim +738 include/linux/bpf.h
728
729 static inline int dev_map_inc_redirect_count(void)
730 {
> 731 }
732
733 static inline void dev_map_dec_redirect_count(void)
734 {
735 }
736
737 static inline void __dev_map_insert_ctx(struct bpf_map *map,
> 738 struct bpf_dtab_netdev *dst)
739 {
740 }
741
---
0-DAY kernel test infrastructure Open Source Technology Center
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