diff options
Diffstat (limited to 'net/key/af_key.c')
| -rw-r--r-- | net/key/af_key.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c index 5502df115a6..17b2a6927f0 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -352,16 +352,14 @@ static int verify_address_len(void *p) switch (addr->sa_family) { case AF_INET: - len = sizeof(*sp) + sizeof(*sin) + (sizeof(uint64_t) - 1); - len /= sizeof(uint64_t); + len = DIV_ROUND_UP(sizeof(*sp) + sizeof(*sin), sizeof(uint64_t)); if (sp->sadb_address_len != len || sp->sadb_address_prefixlen > 32) return -EINVAL; break; #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) case AF_INET6: - len = sizeof(*sp) + sizeof(*sin6) + (sizeof(uint64_t) - 1); - len /= sizeof(uint64_t); + len = DIV_ROUND_UP(sizeof(*sp) + sizeof(*sin6), sizeof(uint64_t)); if (sp->sadb_address_len != len || sp->sadb_address_prefixlen > 128) return -EINVAL; @@ -386,14 +384,9 @@ static int verify_address_len(void *p) static inline int pfkey_sec_ctx_len(struct sadb_x_sec_ctx *sec_ctx) { - int len = 0; - - len += sizeof(struct sadb_x_sec_ctx); - len += sec_ctx->sadb_x_ctx_len; - len += sizeof(uint64_t) - 1; - len /= sizeof(uint64_t); - - return len; + return DIV_ROUND_UP(sizeof(struct sadb_x_sec_ctx) + + sec_ctx->sadb_x_ctx_len, + sizeof(uint64_t)); } static inline int verify_sec_ctx_len(void *p) |