diff options
author | Arjan van de Ven <arjan@infradead.org> | 2005-11-29 16:21:38 -0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2005-11-29 16:21:38 -0800 |
commit | 9b5b5cff9a6655dbb6d2e2be365bb95eec3950eb (patch) | |
tree | 80517910c731fc48512ba9c31aa823575db405b3 /net/ipv4 | |
parent | fb29644994744a63bc57186cefa79534b5d9b5a9 (diff) | |
download | blackbird-obmc-linux-9b5b5cff9a6655dbb6d2e2be365bb95eec3950eb.tar.gz blackbird-obmc-linux-9b5b5cff9a6655dbb6d2e2be365bb95eec3950eb.zip |
[NET]: Add const markers to various variables.
the patch below marks various variables const in net/; the goal is to
move them to the .rodata section so that they can't false-share
cachelines with things that get written to, as well as potentially
helping gcc a bit with optimisations. (these were found using a gcc
patch to warn about such variables)
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r-- | net/ipv4/fib_hash.c | 2 | ||||
-rw-r--r-- | net/ipv4/fib_semantics.c | 2 | ||||
-rw-r--r-- | net/ipv4/icmp.c | 4 | ||||
-rw-r--r-- | net/ipv4/ipvs/ip_vs_conn.c | 2 | ||||
-rw-r--r-- | net/ipv4/ipvs/ip_vs_ctl.c | 4 | ||||
-rw-r--r-- | net/ipv4/ipvs/ip_vs_proto_tcp.c | 2 | ||||
-rw-r--r-- | net/ipv4/netfilter/ip_conntrack_amanda.c | 2 | ||||
-rw-r--r-- | net/ipv4/netfilter/ip_conntrack_ftp.c | 2 | ||||
-rw-r--r-- | net/ipv4/netfilter/ip_conntrack_irc.c | 2 | ||||
-rw-r--r-- | net/ipv4/netfilter/ip_conntrack_proto_icmp.c | 4 | ||||
-rw-r--r-- | net/ipv4/netfilter/ip_conntrack_proto_sctp.c | 4 | ||||
-rw-r--r-- | net/ipv4/netfilter/ip_conntrack_proto_tcp.c | 6 | ||||
-rw-r--r-- | net/ipv4/netfilter/ip_tables.c | 2 | ||||
-rw-r--r-- | net/ipv4/netfilter/ipt_LOG.c | 2 | ||||
-rw-r--r-- | net/ipv4/proc.c | 10 | ||||
-rw-r--r-- | net/ipv4/route.c | 2 | ||||
-rw-r--r-- | net/ipv4/tcp.c | 2 |
17 files changed, 27 insertions, 27 deletions
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c index 2a8c9afc3695..7ea0209cb169 100644 --- a/net/ipv4/fib_hash.c +++ b/net/ipv4/fib_hash.c @@ -975,7 +975,7 @@ static void fib_seq_stop(struct seq_file *seq, void *v) static unsigned fib_flag_trans(int type, u32 mask, struct fib_info *fi) { - static unsigned type2flags[RTN_MAX + 1] = { + static const unsigned type2flags[RTN_MAX + 1] = { [7] = RTF_REJECT, [8] = RTF_REJECT, }; unsigned flags = type2flags[type]; diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 186f20c4a45e..6d2a6ac070e3 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -83,7 +83,7 @@ for (nhsel=0; nhsel < 1; nhsel++) #define endfor_nexthops(fi) } -static struct +static const struct { int error; u8 scope; diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index e3eceecd0496..92e23b2ad4d2 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -220,7 +220,7 @@ struct icmp_control { short error; /* This ICMP is classed as an error message */ }; -static struct icmp_control icmp_pointers[NR_ICMP_TYPES+1]; +static const struct icmp_control icmp_pointers[NR_ICMP_TYPES+1]; /* * The ICMP socket(s). This is the most convenient way to flow control @@ -994,7 +994,7 @@ error: /* * This table is the definition of how we handle ICMP. */ -static struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = { +static const struct icmp_control icmp_pointers[NR_ICMP_TYPES + 1] = { [ICMP_ECHOREPLY] = { .output_entry = ICMP_MIB_OUTECHOREPS, .input_entry = ICMP_MIB_INECHOREPS, diff --git a/net/ipv4/ipvs/ip_vs_conn.c b/net/ipv4/ipvs/ip_vs_conn.c index f828fa2eb7de..2a3a8c59c655 100644 --- a/net/ipv4/ipvs/ip_vs_conn.c +++ b/net/ipv4/ipvs/ip_vs_conn.c @@ -771,7 +771,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp) * The drop rate array needs tuning for real environments. * Called from timer bh only => no locking */ - static char todrop_rate[9] = {0, 1, 2, 3, 4, 5, 6, 7, 8}; + static const char todrop_rate[9] = {0, 1, 2, 3, 4, 5, 6, 7, 8}; static char todrop_counter[9] = {0}; int i; diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c index 2d66848e7aa0..9bdcf31b760e 100644 --- a/net/ipv4/ipvs/ip_vs_ctl.c +++ b/net/ipv4/ipvs/ip_vs_ctl.c @@ -1909,7 +1909,7 @@ static int ip_vs_set_timeout(struct ip_vs_timeout_user *u) #define DAEMON_ARG_LEN (sizeof(struct ip_vs_daemon_user)) #define MAX_ARG_LEN SVCDEST_ARG_LEN -static unsigned char set_arglen[SET_CMDID(IP_VS_SO_SET_MAX)+1] = { +static const unsigned char set_arglen[SET_CMDID(IP_VS_SO_SET_MAX)+1] = { [SET_CMDID(IP_VS_SO_SET_ADD)] = SERVICE_ARG_LEN, [SET_CMDID(IP_VS_SO_SET_EDIT)] = SERVICE_ARG_LEN, [SET_CMDID(IP_VS_SO_SET_DEL)] = SERVICE_ARG_LEN, @@ -2180,7 +2180,7 @@ __ip_vs_get_timeouts(struct ip_vs_timeout_user *u) #define GET_TIMEOUT_ARG_LEN (sizeof(struct ip_vs_timeout_user)) #define GET_DAEMON_ARG_LEN (sizeof(struct ip_vs_daemon_user) * 2) -static unsigned char get_arglen[GET_CMDID(IP_VS_SO_GET_MAX)+1] = { +static const unsigned char get_arglen[GET_CMDID(IP_VS_SO_GET_MAX)+1] = { [GET_CMDID(IP_VS_SO_GET_VERSION)] = 64, [GET_CMDID(IP_VS_SO_GET_INFO)] = GET_INFO_ARG_LEN, [GET_CMDID(IP_VS_SO_GET_SERVICES)] = GET_SERVICES_ARG_LEN, diff --git a/net/ipv4/ipvs/ip_vs_proto_tcp.c b/net/ipv4/ipvs/ip_vs_proto_tcp.c index c19408973c09..0e878fd6215c 100644 --- a/net/ipv4/ipvs/ip_vs_proto_tcp.c +++ b/net/ipv4/ipvs/ip_vs_proto_tcp.c @@ -251,7 +251,7 @@ tcp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp) #define TCP_DIR_OUTPUT 4 #define TCP_DIR_INPUT_ONLY 8 -static int tcp_state_off[IP_VS_DIR_LAST] = { +static const int tcp_state_off[IP_VS_DIR_LAST] = { [IP_VS_DIR_INPUT] = TCP_DIR_INPUT, [IP_VS_DIR_OUTPUT] = TCP_DIR_OUTPUT, [IP_VS_DIR_INPUT_ONLY] = TCP_DIR_INPUT_ONLY, diff --git a/net/ipv4/netfilter/ip_conntrack_amanda.c b/net/ipv4/netfilter/ip_conntrack_amanda.c index fa3f914117ec..e52847fa10f5 100644 --- a/net/ipv4/netfilter/ip_conntrack_amanda.c +++ b/net/ipv4/netfilter/ip_conntrack_amanda.c @@ -37,7 +37,7 @@ MODULE_LICENSE("GPL"); module_param(master_timeout, int, 0600); MODULE_PARM_DESC(master_timeout, "timeout for the master connection"); -static char *conns[] = { "DATA ", "MESG ", "INDEX " }; +static const char *conns[] = { "DATA ", "MESG ", "INDEX " }; /* This is slow, but it's simple. --RR */ static char *amanda_buffer; diff --git a/net/ipv4/netfilter/ip_conntrack_ftp.c b/net/ipv4/netfilter/ip_conntrack_ftp.c index 59e12b02b22c..68b173bcda60 100644 --- a/net/ipv4/netfilter/ip_conntrack_ftp.c +++ b/net/ipv4/netfilter/ip_conntrack_ftp.c @@ -55,7 +55,7 @@ static int try_rfc959(const char *, size_t, u_int32_t [], char); static int try_eprt(const char *, size_t, u_int32_t [], char); static int try_epsv_response(const char *, size_t, u_int32_t [], char); -static struct ftp_search { +static const struct ftp_search { enum ip_conntrack_dir dir; const char *pattern; size_t plen; diff --git a/net/ipv4/netfilter/ip_conntrack_irc.c b/net/ipv4/netfilter/ip_conntrack_irc.c index 2dea1db14406..d7c40421d0d1 100644 --- a/net/ipv4/netfilter/ip_conntrack_irc.c +++ b/net/ipv4/netfilter/ip_conntrack_irc.c @@ -59,7 +59,7 @@ MODULE_PARM_DESC(max_dcc_channels, "max number of expected DCC channels per IRC module_param(dcc_timeout, int, 0400); MODULE_PARM_DESC(dcc_timeout, "timeout on for unestablished DCC channels"); -static char *dccprotos[] = { "SEND ", "CHAT ", "MOVE ", "TSEND ", "SCHAT " }; +static const char *dccprotos[] = { "SEND ", "CHAT ", "MOVE ", "TSEND ", "SCHAT " }; #define MINMATCHLEN 5 #if 0 diff --git a/net/ipv4/netfilter/ip_conntrack_proto_icmp.c b/net/ipv4/netfilter/ip_conntrack_proto_icmp.c index e4d6b268e8c4..5f9925db608e 100644 --- a/net/ipv4/netfilter/ip_conntrack_proto_icmp.c +++ b/net/ipv4/netfilter/ip_conntrack_proto_icmp.c @@ -51,7 +51,7 @@ static int icmp_invert_tuple(struct ip_conntrack_tuple *tuple, const struct ip_conntrack_tuple *orig) { /* Add 1; spaces filled with 0. */ - static u_int8_t invmap[] + static const u_int8_t invmap[] = { [ICMP_ECHO] = ICMP_ECHOREPLY + 1, [ICMP_ECHOREPLY] = ICMP_ECHO + 1, [ICMP_TIMESTAMP] = ICMP_TIMESTAMPREPLY + 1, @@ -110,7 +110,7 @@ static int icmp_packet(struct ip_conntrack *ct, return NF_ACCEPT; } -static u_int8_t valid_new[] = { +static const u_int8_t valid_new[] = { [ICMP_ECHO] = 1, [ICMP_TIMESTAMP] = 1, [ICMP_INFO_REQUEST] = 1, diff --git a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c index 59a4a0111dd3..977fb59d4563 100644 --- a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c +++ b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c @@ -65,7 +65,7 @@ static unsigned long ip_ct_sctp_timeout_shutdown_sent = 300 SECS / 1000; static unsigned long ip_ct_sctp_timeout_shutdown_recd = 300 SECS / 1000; static unsigned long ip_ct_sctp_timeout_shutdown_ack_sent = 3 SECS; -static unsigned long * sctp_timeouts[] +static const unsigned long * sctp_timeouts[] = { NULL, /* SCTP_CONNTRACK_NONE */ &ip_ct_sctp_timeout_closed, /* SCTP_CONNTRACK_CLOSED */ &ip_ct_sctp_timeout_cookie_wait, /* SCTP_CONNTRACK_COOKIE_WAIT */ @@ -118,7 +118,7 @@ cookie echoed to closed. */ /* SCTP conntrack state transitions */ -static enum sctp_conntrack sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = { +static const enum sctp_conntrack sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = { { /* ORIGINAL */ /* sNO, sCL, sCW, sCE, sES, sSS, sSR, sSA */ diff --git a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c index ee3b7d6c4d2e..625981676776 100644 --- a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c +++ b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c @@ -99,7 +99,7 @@ unsigned long ip_ct_tcp_timeout_close = 10 SECS; to ~13-30min depending on RTO. */ unsigned long ip_ct_tcp_timeout_max_retrans = 5 MINS; -static unsigned long * tcp_timeouts[] +static const unsigned long * tcp_timeouts[] = { NULL, /* TCP_CONNTRACK_NONE */ &ip_ct_tcp_timeout_syn_sent, /* TCP_CONNTRACK_SYN_SENT, */ &ip_ct_tcp_timeout_syn_recv, /* TCP_CONNTRACK_SYN_RECV, */ @@ -170,7 +170,7 @@ enum tcp_bit_set { * if they are invalid * or we do not support the request (simultaneous open) */ -static enum tcp_conntrack tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = { +static const enum tcp_conntrack tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = { { /* ORIGINAL */ /* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */ @@ -817,7 +817,7 @@ void ip_conntrack_tcp_update(struct sk_buff *skb, #define TH_CWR 0x80 /* table of valid flag combinations - ECE and CWR are always valid */ -static u8 tcp_valid_flags[(TH_FIN|TH_SYN|TH_RST|TH_PUSH|TH_ACK|TH_URG) + 1] = +static const u8 tcp_valid_flags[(TH_FIN|TH_SYN|TH_RST|TH_PUSH|TH_ACK|TH_URG) + 1] = { [TH_SYN] = 1, [TH_SYN|TH_ACK] = 1, diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index 75c27e92f6ab..45886c8475e8 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -1892,7 +1892,7 @@ static int ipt_get_matches(char *buffer, char **start, off_t offset, int length) return pos; } -static struct { char *name; get_info_t *get_info; } ipt_proc_entry[] = +static const struct { char *name; get_info_t *get_info; } ipt_proc_entry[] = { { "ip_tables_names", ipt_get_tables }, { "ip_tables_targets", ipt_get_targets }, { "ip_tables_matches", ipt_get_matches }, diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c index 92ed050fac69..180d6ca04af6 100644 --- a/net/ipv4/netfilter/ipt_LOG.c +++ b/net/ipv4/netfilter/ipt_LOG.c @@ -197,7 +197,7 @@ static void dump_packet(const struct nf_loginfo *info, } case IPPROTO_ICMP: { struct icmphdr _icmph, *ich; - static size_t required_len[NR_ICMP_TYPES+1] + static const size_t required_len[NR_ICMP_TYPES+1] = { [ICMP_ECHOREPLY] = 4, [ICMP_DEST_UNREACH] = 8 + sizeof(struct iphdr), diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index a65e508fbd40..0d7dc668db46 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -98,7 +98,7 @@ fold_field(void *mib[], int offt) } /* snmp items */ -static struct snmp_mib snmp4_ipstats_list[] = { +static const struct snmp_mib snmp4_ipstats_list[] = { SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INRECEIVES), SNMP_MIB_ITEM("InHdrErrors", IPSTATS_MIB_INHDRERRORS), SNMP_MIB_ITEM("InAddrErrors", IPSTATS_MIB_INADDRERRORS), @@ -119,7 +119,7 @@ static struct snmp_mib snmp4_ipstats_list[] = { SNMP_MIB_SENTINEL }; -static struct snmp_mib snmp4_icmp_list[] = { +static const struct snmp_mib snmp4_icmp_list[] = { SNMP_MIB_ITEM("InMsgs", ICMP_MIB_INMSGS), SNMP_MIB_ITEM("InErrors", ICMP_MIB_INERRORS), SNMP_MIB_ITEM("InDestUnreachs", ICMP_MIB_INDESTUNREACHS), @@ -149,7 +149,7 @@ static struct snmp_mib snmp4_icmp_list[] = { SNMP_MIB_SENTINEL }; -static struct snmp_mib snmp4_tcp_list[] = { +static const struct snmp_mib snmp4_tcp_list[] = { SNMP_MIB_ITEM("RtoAlgorithm", TCP_MIB_RTOALGORITHM), SNMP_MIB_ITEM("RtoMin", TCP_MIB_RTOMIN), SNMP_MIB_ITEM("RtoMax", TCP_MIB_RTOMAX), @@ -167,7 +167,7 @@ static struct snmp_mib snmp4_tcp_list[] = { SNMP_MIB_SENTINEL }; -static struct snmp_mib snmp4_udp_list[] = { +static const struct snmp_mib snmp4_udp_list[] = { SNMP_MIB_ITEM("InDatagrams", UDP_MIB_INDATAGRAMS), SNMP_MIB_ITEM("NoPorts", UDP_MIB_NOPORTS), SNMP_MIB_ITEM("InErrors", UDP_MIB_INERRORS), @@ -175,7 +175,7 @@ static struct snmp_mib snmp4_udp_list[] = { SNMP_MIB_SENTINEL }; -static struct snmp_mib snmp4_net_list[] = { +static const struct snmp_mib snmp4_net_list[] = { SNMP_MIB_ITEM("SyncookiesSent", LINUX_MIB_SYNCOOKIESSENT), SNMP_MIB_ITEM("SyncookiesRecv", LINUX_MIB_SYNCOOKIESRECV), SNMP_MIB_ITEM("SyncookiesFailed", LINUX_MIB_SYNCOOKIESFAILED), diff --git a/net/ipv4/route.c b/net/ipv4/route.c index e9c14f4a2eba..f701a136a6ae 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1371,7 +1371,7 @@ out: kfree_skb(skb); * are needed for AMPRnet AX.25 paths. */ -static unsigned short mtu_plateau[] = +static const unsigned short mtu_plateau[] = {32000, 17914, 8166, 4352, 2002, 1492, 576, 296, 216, 128 }; static __inline__ unsigned short guess_mtu(unsigned short old_mtu) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 5e6bc4b32875..ef98b14ac56d 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1413,7 +1413,7 @@ recv_urg: * closed. */ -static unsigned char new_state[16] = { +static const unsigned char new_state[16] = { /* current state: new state: action: */ /* (Invalid) */ TCP_CLOSE, /* TCP_ESTABLISHED */ TCP_FIN_WAIT1 | TCP_ACTION_FIN, |