From a3796f895ff2917aea331a8d40036c73452b2203 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Wed, 23 Feb 2011 11:44:49 -0500 Subject: tipc: Add network address mask helper routines Introduces a pair of helper routines that convert the network address for a TIPC node into the network address for its cluster or zone. This is a cosmetic change designed to avoid future errors caused by the incorrect use of address bitmasks, and does not alter the existing operation of TIPC. Signed-off-by: Allan Stephens Signed-off-by: Paul Gortmaker --- net/tipc/addr.c | 4 ++-- net/tipc/addr.h | 17 +++++++++++++---- net/tipc/node.c | 2 +- 3 files changed, 16 insertions(+), 7 deletions(-) (limited to 'net/tipc') diff --git a/net/tipc/addr.c b/net/tipc/addr.c index 88463d9a6f1..087e399518c 100644 --- a/net/tipc/addr.c +++ b/net/tipc/addr.c @@ -81,9 +81,9 @@ int tipc_in_scope(u32 domain, u32 addr) { if (!domain || (domain == addr)) return 1; - if (domain == (addr & 0xfffff000u)) /* domain */ + if (domain == tipc_cluster_mask(addr)) /* domain */ return 1; - if (domain == (addr & 0xff000000u)) /* domain */ + if (domain == tipc_zone_mask(addr)) /* domain */ return 1; return 0; } diff --git a/net/tipc/addr.h b/net/tipc/addr.h index 2490fadd0ca..8971aba99ae 100644 --- a/net/tipc/addr.h +++ b/net/tipc/addr.h @@ -37,6 +37,16 @@ #ifndef _TIPC_ADDR_H #define _TIPC_ADDR_H +static inline u32 tipc_zone_mask(u32 addr) +{ + return addr & 0xff000000u; +} + +static inline u32 tipc_cluster_mask(u32 addr) +{ + return addr & 0xfffff000u; +} + static inline int in_own_cluster(u32 addr) { return !((addr ^ tipc_own_addr) >> 12); @@ -49,14 +59,13 @@ static inline int in_own_cluster(u32 addr) * after a network hop. */ -static inline int addr_domain(int sc) +static inline u32 addr_domain(u32 sc) { if (likely(sc == TIPC_NODE_SCOPE)) return tipc_own_addr; if (sc == TIPC_CLUSTER_SCOPE) - return tipc_addr(tipc_zone(tipc_own_addr), - tipc_cluster(tipc_own_addr), 0); - return tipc_addr(tipc_zone(tipc_own_addr), 0, 0); + return tipc_cluster_mask(tipc_own_addr); + return tipc_zone_mask(tipc_own_addr); } int tipc_addr_domain_valid(u32); diff --git a/net/tipc/node.c b/net/tipc/node.c index d040d4754e3..14f98c81d31 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -470,7 +470,7 @@ struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space) /* Add TLV for broadcast link */ - link_info.dest = htonl(tipc_own_addr & 0xfffff000); + link_info.dest = htonl(tipc_cluster_mask(tipc_own_addr)); link_info.up = htonl(1); strlcpy(link_info.str, tipc_bclink_name, TIPC_MAX_LINK_NAME); tipc_cfg_append_tlv(buf, TIPC_TLV_LINK_INFO, &link_info, sizeof(link_info)); -- cgit v1.2.3