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Date: Sun, 29 Jul 2018 15:06:14 +0800
From: kbuild test robot <lkp@...el.com>
To: Toshiaki Makita <toshiaki.makita1@...il.com>
Cc: kbuild-all@...org, netdev@...r.kernel.org,
Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Toshiaki Makita <makita.toshiaki@....ntt.co.jp>,
Jesper Dangaard Brouer <brouer@...hat.com>,
Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: Re: [PATCH v5 bpf-next 6/9] bpf: Make redirect_info accessible from
modules
Hi Toshiaki,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on bpf-next/master]
url: https://github.com/0day-ci/linux/commits/Toshiaki-Makita/net-Export-skb_headers_offset_update/20180729-094722
base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
net/core/filter.c:116:48: sparse: expression using sizeof(void)
net/core/filter.c:116:48: sparse: expression using sizeof(void)
net/core/filter.c:210:32: sparse: cast to restricted __be16
net/core/filter.c:210:32: sparse: cast to restricted __be16
net/core/filter.c:210:32: sparse: cast to restricted __be16
net/core/filter.c:210:32: sparse: cast to restricted __be16
net/core/filter.c:210:32: sparse: cast to restricted __be16
net/core/filter.c:210:32: sparse: cast to restricted __be16
net/core/filter.c:210:32: sparse: cast to restricted __be16
net/core/filter.c:210:32: sparse: cast to restricted __be16
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:237:32: sparse: cast to restricted __be32
net/core/filter.c:410:33: sparse: subtraction of functions? Share your drugs
net/core/filter.c:413:33: sparse: subtraction of functions? Share your drugs
net/core/filter.c:416:33: sparse: subtraction of functions? Share your drugs
net/core/filter.c:419:33: sparse: subtraction of functions? Share your drugs
net/core/filter.c:422:33: sparse: subtraction of functions? Share your drugs
net/core/filter.c:495:27: sparse: subtraction of functions? Share your drugs
net/core/filter.c:498:27: sparse: subtraction of functions? Share your drugs
net/core/filter.c:501:27: sparse: subtraction of functions? Share your drugs
include/linux/slab.h:631:13: sparse: undefined identifier '__builtin_mul_overflow'
include/linux/slab.h:631:13: sparse: not a function <noident>
include/linux/filter.h:640:16: sparse: expression using sizeof(void)
include/linux/filter.h:640:16: sparse: expression using sizeof(void)
include/linux/filter.h:640:16: sparse: expression using sizeof(void)
include/linux/filter.h:640:16: sparse: expression using sizeof(void)
net/core/filter.c:1389:39: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sock_filter const *filter @@ got struct sockstruct sock_filter const *filter @@
net/core/filter.c:1389:39: expected struct sock_filter const *filter
net/core/filter.c:1389:39: got struct sock_filter [noderef] <asn:1>*filter
include/linux/filter.h:640:16: sparse: expression using sizeof(void)
include/linux/filter.h:640:16: sparse: expression using sizeof(void)
net/core/filter.c:1491:39: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sock_filter const *filter @@ got struct sockstruct sock_filter const *filter @@
net/core/filter.c:1491:39: expected struct sock_filter const *filter
net/core/filter.c:1491:39: got struct sock_filter [noderef] <asn:1>*filter
include/linux/filter.h:640:16: sparse: expression using sizeof(void)
net/core/filter.c:1824:43: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __wsum [usertype] diff @@ got unsigned lonrestricted __wsum [usertype] diff @@
net/core/filter.c:1824:43: expected restricted __wsum [usertype] diff
net/core/filter.c:1824:43: got unsigned long long [unsigned] [usertype] to
net/core/filter.c:1827:36: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be16 [usertype] old @@ got unsigned lonrestricted __be16 [usertype] old @@
net/core/filter.c:1827:36: expected restricted __be16 [usertype] old
net/core/filter.c:1827:36: got unsigned long long [unsigned] [usertype] from
net/core/filter.c:1827:42: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __be16 [usertype] new @@ got unsigned lonrestricted __be16 [usertype] new @@
net/core/filter.c:1827:42: expected restricted __be16 [usertype] new
net/core/filter.c:1827:42: got unsigned long long [unsigned] [usertype] to
net/core/filter.c:1830:36: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be32 [usertype] from @@ got unsigned lonrestricted __be32 [usertype] from @@
net/core/filter.c:1830:36: expected restricted __be32 [usertype] from
net/core/filter.c:1830:36: got unsigned long long [unsigned] [usertype] from
net/core/filter.c:1830:42: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __be32 [usertype] to @@ got unsigned lonrestricted __be32 [usertype] to @@
net/core/filter.c:1830:42: expected restricted __be32 [usertype] to
net/core/filter.c:1830:42: got unsigned long long [unsigned] [usertype] to
net/core/filter.c:1875:59: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] diff @@ got unsigned lonrestricted __wsum [usertype] diff @@
net/core/filter.c:1875:59: expected restricted __wsum [usertype] diff
net/core/filter.c:1875:59: got unsigned long long [unsigned] [usertype] to
net/core/filter.c:1878:52: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __be16 [usertype] from @@ got unsigned lonrestricted __be16 [usertype] from @@
net/core/filter.c:1878:52: expected restricted __be16 [usertype] from
net/core/filter.c:1878:52: got unsigned long long [unsigned] [usertype] from
net/core/filter.c:1878:58: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __be16 [usertype] to @@ got unsigned lonrestricted __be16 [usertype] to @@
net/core/filter.c:1878:58: expected restricted __be16 [usertype] to
net/core/filter.c:1878:58: got unsigned long long [unsigned] [usertype] to
net/core/filter.c:1881:52: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __be32 [usertype] from @@ got unsigned lonrestricted __be32 [usertype] from @@
net/core/filter.c:1881:52: expected restricted __be32 [usertype] from
net/core/filter.c:1881:52: got unsigned long long [unsigned] [usertype] from
net/core/filter.c:1881:58: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __be32 [usertype] to @@ got unsigned lonrestricted __be32 [usertype] to @@
net/core/filter.c:1881:58: expected restricted __be32 [usertype] to
net/core/filter.c:1881:58: got unsigned long long [unsigned] [usertype] to
net/core/filter.c:1927:28: sparse: incorrect type in return expression (different base types) @@ expected unsigned long long @@ got nsigned long long @@
net/core/filter.c:1927:28: expected unsigned long long
net/core/filter.c:1927:28: got restricted __wsum
net/core/filter.c:1949:35: sparse: incorrect type in return expression (different base types) @@ expected unsigned long long @@ got restricted unsigned long long @@
net/core/filter.c:1949:35: expected unsigned long long
net/core/filter.c:1949:35: got restricted __wsum [usertype] csum
>> net/core/filter.c:2088:40: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] <asn:3>*__vpp_verify @@ got d const [noderef] <asn:3>*__vpp_verify @@
net/core/filter.c:2088:40: expected void const [noderef] <asn:3>*__vpp_verify
net/core/filter.c:2088:40: got struct bpf_redirect_info *<noident>
net/core/filter.c:2101:40: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] <asn:3>*__vpp_verify @@ got d const [noderef] <asn:3>*__vpp_verify @@
net/core/filter.c:2101:40: expected void const [noderef] <asn:3>*__vpp_verify
net/core/filter.c:2101:40: got struct bpf_redirect_info *<noident>
net/core/filter.c:3194:40: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] <asn:3>*__vpp_verify @@ got d const [noderef] <asn:3>*__vpp_verify @@
net/core/filter.c:3194:40: expected void const [noderef] <asn:3>*__vpp_verify
net/core/filter.c:3194:40: got struct bpf_redirect_info *<noident>
net/core/filter.c:3239:40: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] <asn:3>*__vpp_verify @@ got d const [noderef] <asn:3>*__vpp_verify @@
net/core/filter.c:3239:40: expected void const [noderef] <asn:3>*__vpp_verify
net/core/filter.c:3239:40: got struct bpf_redirect_info *<noident>
net/core/filter.c:3279:40: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] <asn:3>*__vpp_verify @@ got d const [noderef] <asn:3>*__vpp_verify @@
net/core/filter.c:3279:40: expected void const [noderef] <asn:3>*__vpp_verify
net/core/filter.c:3279:40: got struct bpf_redirect_info *<noident>
net/core/filter.c:3311:40: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] <asn:3>*__vpp_verify @@ got d const [noderef] <asn:3>*__vpp_verify @@
net/core/filter.c:3311:40: expected void const [noderef] <asn:3>*__vpp_verify
net/core/filter.c:3311:40: got struct bpf_redirect_info *<noident>
net/core/filter.c:3362:40: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] <asn:3>*__vpp_verify @@ got d const [noderef] <asn:3>*__vpp_verify @@
net/core/filter.c:3362:40: expected void const [noderef] <asn:3>*__vpp_verify
net/core/filter.c:3362:40: got struct bpf_redirect_info *<noident>
net/core/filter.c:3393:40: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] <asn:3>*__vpp_verify @@ got d const [noderef] <asn:3>*__vpp_verify @@
net/core/filter.c:3393:40: expected void const [noderef] <asn:3>*__vpp_verify
net/core/filter.c:3393:40: got struct bpf_redirect_info *<noident>
net/core/filter.c:3417:40: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] <asn:3>*__vpp_verify @@ got d const [noderef] <asn:3>*__vpp_verify @@
net/core/filter.c:3417:40: expected void const [noderef] <asn:3>*__vpp_verify
net/core/filter.c:3417:40: got struct bpf_redirect_info *<noident>
net/core/filter.c:3845:41: sparse: expression using sizeof(void)
net/core/filter.c:3849:41: sparse: expression using sizeof(void)
net/core/filter.c:3853:46: sparse: expression using sizeof(void)
net/core/filter.c:3853:46: sparse: expression using sizeof(void)
net/core/filter.c:3921:47: sparse: expression using sizeof(void)
net/core/filter.c:4127:17: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [unsigned] [usertype] spi @@ got unsigned int [unsigned] [usertype] spi @@
net/core/filter.c:4127:17: expected unsigned int [unsigned] [usertype] spi
net/core/filter.c:4127:17: got restricted __be32 const [usertype] spi
net/core/filter.c:4135:33: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [unsigned] [usertype] remote_ipv4 @@ got unsigned int [unsigned] [usertype] remote_ipv4 @@
net/core/filter.c:4135:33: expected unsigned int [unsigned] [usertype] remote_ipv4
net/core/filter.c:4135:33: got restricted __be32 const [usertype] a4
net/core/filter.c:5304:27: sparse: subtraction of functions? Share your drugs
net/core/filter.c:5307:27: sparse: subtraction of functions? Share your drugs
net/core/filter.c:5310:27: sparse: subtraction of functions? Share your drugs
include/linux/slab.h:631:13: sparse: call with no type!
vim +2088 net/core/filter.c
2085
2086 BPF_CALL_2(bpf_redirect, u32, ifindex, u64, flags)
2087 {
> 2088 struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
2089
2090 if (unlikely(flags & ~(BPF_F_INGRESS)))
2091 return TC_ACT_SHOT;
2092
2093 ri->ifindex = ifindex;
2094 ri->flags = flags;
2095
2096 return TC_ACT_REDIRECT;
2097 }
2098
---
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