Date:   Fri, 11 May 2018 08:05:01 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Mathieu Xhonneux <m.xhonneux@...il.com>
Cc:     kbuild-all@...org, netdev@...r.kernel.org, dlebrun@...gle.com,
        alexei.starovoitov@...il.com
Subject: Re: [PATCH bpf-next v4 5/6] ipv6: sr: Add seg6local action End.BPF

Hi Mathieu,

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/Mathieu-Xhonneux/ipv6-sr-introduce-seg6local-End-BPF-action/20180511-032546
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:112:48: sparse: expression using sizeof(void)
   net/core/filter.c:112:48: sparse: expression using sizeof(void)
   net/core/filter.c:206:32: sparse: cast to restricted __be16
   net/core/filter.c:206:32: sparse: cast to restricted __be16
   net/core/filter.c:206:32: sparse: cast to restricted __be16
   net/core/filter.c:206:32: sparse: cast to restricted __be16
   net/core/filter.c:206:32: sparse: cast to restricted __be16
   net/core/filter.c:206:32: sparse: cast to restricted __be16
   net/core/filter.c:206:32: sparse: cast to restricted __be16
   net/core/filter.c:206:32: sparse: cast to restricted __be16
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:233:32: sparse: cast to restricted __be32
   net/core/filter.c:406:33: sparse: subtraction of functions? Share your drugs
   net/core/filter.c:409:33: sparse: subtraction of functions? Share your drugs
   net/core/filter.c:412:33: sparse: subtraction of functions? Share your drugs
   net/core/filter.c:415:33: sparse: subtraction of functions? Share your drugs
   net/core/filter.c:418:33: sparse: subtraction of functions? Share your drugs
   net/core/filter.c:481:27: sparse: subtraction of functions? Share your drugs
   net/core/filter.c:484:27: sparse: subtraction of functions? Share your drugs
   net/core/filter.c:487:27: sparse: subtraction of functions? Share your drugs
   include/linux/filter.h:615:16: sparse: expression using sizeof(void)
   include/linux/filter.h:615:16: sparse: expression using sizeof(void)
   include/linux/filter.h:615:16: sparse: expression using sizeof(void)
   include/linux/filter.h:615:16: sparse: expression using sizeof(void)
   net/core/filter.c:1368:39: 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:1368:39:    expected struct sock_filter const *filter
   net/core/filter.c:1368:39:    got struct sock_filter [noderef] <asn:1>*filter
   include/linux/filter.h:615:16: sparse: expression using sizeof(void)
   include/linux/filter.h:615:16: sparse: expression using sizeof(void)
   net/core/filter.c:1470:39: 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:1470:39:    expected struct sock_filter const *filter
   net/core/filter.c:1470:39:    got struct sock_filter [noderef] <asn:1>*filter
   include/linux/filter.h:615:16: sparse: expression using sizeof(void)
   net/core/filter.c:1772:43: sparse: incorrect type in argument 2 (different base types) @@    expected restricted __wsum [usertype] diff @@    got unsigned lonrestricted __wsum [usertype] diff @@
   net/core/filter.c:1772:43:    expected restricted __wsum [usertype] diff
   net/core/filter.c:1772:43:    got unsigned long long [unsigned] [usertype] to
   net/core/filter.c:1775:36: sparse: incorrect type in argument 2 (different base types) @@    expected restricted __be16 [usertype] old @@    got unsigned lonrestricted __be16 [usertype] old @@
   net/core/filter.c:1775:36:    expected restricted __be16 [usertype] old
   net/core/filter.c:1775:36:    got unsigned long long [unsigned] [usertype] from
   net/core/filter.c:1775:42: sparse: incorrect type in argument 3 (different base types) @@    expected restricted __be16 [usertype] new @@    got unsigned lonrestricted __be16 [usertype] new @@
   net/core/filter.c:1775:42:    expected restricted __be16 [usertype] new
   net/core/filter.c:1775:42:    got unsigned long long [unsigned] [usertype] to
   net/core/filter.c:1778:36: sparse: incorrect type in argument 2 (different base types) @@    expected restricted __be32 [usertype] from @@    got unsigned lonrestricted __be32 [usertype] from @@
   net/core/filter.c:1778:36:    expected restricted __be32 [usertype] from
   net/core/filter.c:1778:36:    got unsigned long long [unsigned] [usertype] from
   net/core/filter.c:1778:42: sparse: incorrect type in argument 3 (different base types) @@    expected restricted __be32 [usertype] to @@    got unsigned lonrestricted __be32 [usertype] to @@
   net/core/filter.c:1778:42:    expected restricted __be32 [usertype] to
   net/core/filter.c:1778:42:    got unsigned long long [unsigned] [usertype] to
   net/core/filter.c:1823:59: sparse: incorrect type in argument 3 (different base types) @@    expected restricted __wsum [usertype] diff @@    got unsigned lonrestricted __wsum [usertype] diff @@
   net/core/filter.c:1823:59:    expected restricted __wsum [usertype] diff
   net/core/filter.c:1823:59:    got unsigned long long [unsigned] [usertype] to
   net/core/filter.c:1826:52: sparse: incorrect type in argument 3 (different base types) @@    expected restricted __be16 [usertype] from @@    got unsigned lonrestricted __be16 [usertype] from @@
   net/core/filter.c:1826:52:    expected restricted __be16 [usertype] from
   net/core/filter.c:1826:52:    got unsigned long long [unsigned] [usertype] from
   net/core/filter.c:1826:58: sparse: incorrect type in argument 4 (different base types) @@    expected restricted __be16 [usertype] to @@    got unsigned lonrestricted __be16 [usertype] to @@
   net/core/filter.c:1826:58:    expected restricted __be16 [usertype] to
   net/core/filter.c:1826:58:    got unsigned long long [unsigned] [usertype] to
   net/core/filter.c:1829:52: sparse: incorrect type in argument 3 (different base types) @@    expected restricted __be32 [usertype] from @@    got unsigned lonrestricted __be32 [usertype] from @@
   net/core/filter.c:1829:52:    expected restricted __be32 [usertype] from
   net/core/filter.c:1829:52:    got unsigned long long [unsigned] [usertype] from
   net/core/filter.c:1829:58: sparse: incorrect type in argument 4 (different base types) @@    expected restricted __be32 [usertype] to @@    got unsigned lonrestricted __be32 [usertype] to @@
   net/core/filter.c:1829:58:    expected restricted __be32 [usertype] to
   net/core/filter.c:1829:58:    got unsigned long long [unsigned] [usertype] to
   net/core/filter.c:1875:28: sparse: incorrect type in return expression (different base types) @@    expected unsigned long long @@    got nsigned long long @@
   net/core/filter.c:1875:28:    expected unsigned long long
   net/core/filter.c:1875:28:    got restricted __wsum
   net/core/filter.c:1897:35: sparse: incorrect type in return expression (different base types) @@    expected unsigned long long @@    got restricted unsigned long long @@
   net/core/filter.c:1897:35:    expected unsigned long long
   net/core/filter.c:1897:35:    got restricted __wsum [usertype] csum
   net/core/filter.c:3708:41: sparse: expression using sizeof(void)
   net/core/filter.c:3712:41: sparse: expression using sizeof(void)
   net/core/filter.c:3716:46: sparse: expression using sizeof(void)
   net/core/filter.c:3716:46: sparse: expression using sizeof(void)
   net/core/filter.c:3784:47: sparse: expression using sizeof(void)
   net/core/filter.c:3990:17: sparse: incorrect type in assignment (different base types) @@    expected unsigned int [unsigned] [usertype] spi @@    got unsigned int [unsigned] [usertype] spi @@
   net/core/filter.c:3990:17:    expected unsigned int [unsigned] [usertype] spi
   net/core/filter.c:3990:17:    got restricted __be32 const [usertype] spi
   net/core/filter.c:3996:33: 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:3996:33:    expected unsigned int [unsigned] [usertype] remote_ipv4
   net/core/filter.c:3996:33:    got restricted __be32 const [usertype] a4
   net/core/filter.c:4835:27: sparse: subtraction of functions? Share your drugs
   net/core/filter.c:4838:27: sparse: subtraction of functions? Share your drugs
   net/core/filter.c:4841:27: sparse: subtraction of functions? Share your drugs
>> net/core/filter.c:6198:31: sparse: symbol 'lwt_seg6local_verifier_ops' was not declared. Should it be static?
>> net/core/filter.c:6204:27: sparse: symbol 'lwt_seg6local_prog_ops' was not declared. Should it be static?

Please review and possibly fold the followup patch.

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

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