tree: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
master
head: b69ab96ab13ddaa28a506a2433ae5b12669615e8
commit: e65d4d96334e3ff4fe0064612a93a51c63de08de [408/425] rds: Remove IPv6
dependency
reproduce:
# apt-get install sparse
git checkout e65d4d96334e3ff4fe0064612a93a51c63de08de
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
>> net/rds/connection.c:71:31: sparse: incorrect type in argument 1 (different
>> base types) @@ expected restricted __be32 const [usertype] laddr @@
>> got unsigned inrestricted __be32 const [usertype] laddr @@
net/rds/connection.c:71:31: expected restricted __be32 const [usertype]
laddr
net/rds/connection.c:71:31: got unsigned int [unsigned] [assigned]
[usertype] lhash
>> net/rds/connection.c:71:41: sparse: incorrect type in argument 3 (different
>> base types) @@ expected restricted __be32 const [usertype] faddr @@
>> got unsigned inrestricted __be32 const [usertype] faddr @@
net/rds/connection.c:71:41: expected restricted __be32 const [usertype]
faddr
net/rds/connection.c:71:41: got unsigned int [unsigned] [assigned]
[usertype] fhash
include/linux/slab.h:631:13: sparse: undefined identifier
'__builtin_mul_overflow'
include/linux/slab.h:631:13: sparse: call with no type!
vim +71 net/rds/connection.c
53
54 static struct hlist_head *rds_conn_bucket(const struct in6_addr *laddr,
55 const struct in6_addr *faddr)
56 {
57 static u32 rds6_hash_secret __read_mostly;
58 static u32 rds_hash_secret __read_mostly;
59
60 u32 lhash, fhash, hash;
61
62 net_get_random_once(&rds_hash_secret, sizeof(rds_hash_secret));
63 net_get_random_once(&rds6_hash_secret,
sizeof(rds6_hash_secret));
64
65 lhash = (__force u32)laddr->s6_addr32[3];
66 #if IS_ENABLED(CONFIG_IPV6)
67 fhash = __ipv6_addr_jhash(faddr, rds6_hash_secret);
68 #else
69 fhash = (__force u32)faddr->s6_addr32[3];
70 #endif
> 71 hash = __inet_ehashfn(lhash, 0, fhash, 0, rds_hash_secret);
72
73 return &rds_conn_hash[hash & RDS_CONNECTION_HASH_MASK];
74 }
75
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
