From: Denys Vlasenko Date: Tue, 15 Jan 2008 07:44:05 +0000 (-0800) Subject: [NETFILTER]: {ip,ip6}_tables: remove some inlines X-Git-Tag: firefly_0821_release~23655^2~722 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=022748a9357c4c1a0113ec1ce5612f383b80156f;p=firefly-linux-kernel-4.4.55.git [NETFILTER]: {ip,ip6}_tables: remove some inlines This patch removes inlines except those which are used by packet matching code and thus are performance-critical. Before: $ size */*/*/ip*tables*.o text data bss dec hex filename 6402 500 16 6918 1b06 net/ipv4/netfilter/ip_tables.o 7130 500 16 7646 1dde net/ipv6/netfilter/ip6_tables.o After: $ size */*/*/ip*tables*.o text data bss dec hex filename 6307 500 16 6823 1aa7 net/ipv4/netfilter/ip_tables.o 7010 500 16 7526 1d66 net/ipv6/netfilter/ip6_tables.o Signed-off-by: Denys Vlasenko Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index f5b66ec18b0d..982b7f986291 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -75,6 +75,7 @@ do { \ Hence the start of any table is given by get_table() below. */ /* Returns whether matches rule or not. */ +/* Performance critical - called for every packet */ static inline bool ip_packet_match(const struct iphdr *ip, const char *indev, @@ -153,7 +154,7 @@ ip_packet_match(const struct iphdr *ip, return true; } -static inline bool +static bool ip_checkentry(const struct ipt_ip *ip) { if (ip->flags & ~IPT_F_MASK) { @@ -183,8 +184,9 @@ ipt_error(struct sk_buff *skb, return NF_DROP; } -static inline -bool do_match(struct ipt_entry_match *m, +/* Performance critical - called for every packet */ +static inline bool +do_match(struct ipt_entry_match *m, const struct sk_buff *skb, const struct net_device *in, const struct net_device *out, @@ -199,6 +201,7 @@ bool do_match(struct ipt_entry_match *m, return false; } +/* Performance critical */ static inline struct ipt_entry * get_entry(void *base, unsigned int offset) { @@ -206,6 +209,7 @@ get_entry(void *base, unsigned int offset) } /* All zeroes == unconditional rule. */ +/* Mildly perf critical (only if packet tracing is on) */ static inline int unconditional(const struct ipt_ip *ip) { @@ -221,7 +225,7 @@ unconditional(const struct ipt_ip *ip) #if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \ defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE) -static const char *hooknames[] = { +static const char *const hooknames[] = { [NF_INET_PRE_ROUTING] = "PREROUTING", [NF_INET_LOCAL_IN] = "INPUT", [NF_INET_FORWARD] = "FORWARD", @@ -235,7 +239,7 @@ enum nf_ip_trace_comments { NF_IP_TRACE_COMMENT_POLICY, }; -static const char *comments[] = { +static const char *const comments[] = { [NF_IP_TRACE_COMMENT_RULE] = "rule", [NF_IP_TRACE_COMMENT_RETURN] = "return", [NF_IP_TRACE_COMMENT_POLICY] = "policy", @@ -251,6 +255,7 @@ static struct nf_loginfo trace_loginfo = { }, }; +/* Mildly perf critical (only if packet tracing is on) */ static inline int get_chainname_rulenum(struct ipt_entry *s, struct ipt_entry *e, char *hookname, char **chainname, @@ -567,7 +572,7 @@ mark_source_chains(struct xt_table_info *newinfo, return 1; } -static inline int +static int cleanup_match(struct ipt_entry_match *m, unsigned int *i) { if (i && (*i)-- == 0) @@ -579,7 +584,7 @@ cleanup_match(struct ipt_entry_match *m, unsigned int *i) return 0; } -static inline int +static int check_entry(struct ipt_entry *e, const char *name) { struct ipt_entry_target *t; @@ -600,7 +605,8 @@ check_entry(struct ipt_entry *e, const char *name) return 0; } -static inline int check_match(struct ipt_entry_match *m, const char *name, +static int +check_match(struct ipt_entry_match *m, const char *name, const struct ipt_ip *ip, unsigned int hookmask, unsigned int *i) { @@ -623,7 +629,7 @@ static inline int check_match(struct ipt_entry_match *m, const char *name, return ret; } -static inline int +static int find_check_match(struct ipt_entry_match *m, const char *name, const struct ipt_ip *ip, @@ -652,7 +658,7 @@ err: return ret; } -static inline int check_target(struct ipt_entry *e, const char *name) +static int check_target(struct ipt_entry *e, const char *name) { struct ipt_entry_target *t; struct xt_target *target; @@ -673,7 +679,7 @@ static inline int check_target(struct ipt_entry *e, const char *name) return ret; } -static inline int +static int find_check_entry(struct ipt_entry *e, const char *name, unsigned int size, unsigned int *i) { @@ -717,7 +723,7 @@ find_check_entry(struct ipt_entry *e, const char *name, unsigned int size, return ret; } -static inline int +static int check_entry_size_and_hooks(struct ipt_entry *e, struct xt_table_info *newinfo, unsigned char *base, @@ -760,7 +766,7 @@ check_entry_size_and_hooks(struct ipt_entry *e, return 0; } -static inline int +static int cleanup_entry(struct ipt_entry *e, unsigned int *i) { struct ipt_entry_target *t; @@ -916,7 +922,7 @@ get_counters(const struct xt_table_info *t, } } -static inline struct xt_counters * alloc_counters(struct xt_table *table) +static struct xt_counters * alloc_counters(struct xt_table *table) { unsigned int countersize; struct xt_counters *counters; @@ -1304,7 +1310,7 @@ do_replace(void __user *user, unsigned int len) /* We're lazy, and add to the first CPU; overflow works its fey magic * and everything is OK. */ -static inline int +static int add_counter_to_entry(struct ipt_entry *e, const struct xt_counters addme[], unsigned int *i) @@ -1465,7 +1471,7 @@ out: return ret; } -static inline int +static int compat_find_calc_match(struct ipt_entry_match *m, const char *name, const struct ipt_ip *ip, @@ -1489,7 +1495,7 @@ compat_find_calc_match(struct ipt_entry_match *m, return 0; } -static inline int +static int compat_release_match(struct ipt_entry_match *m, unsigned int *i) { if (i && (*i)-- == 0) @@ -1499,7 +1505,7 @@ compat_release_match(struct ipt_entry_match *m, unsigned int *i) return 0; } -static inline int +static int compat_release_entry(struct compat_ipt_entry *e, unsigned int *i) { struct ipt_entry_target *t; @@ -1514,7 +1520,7 @@ compat_release_entry(struct compat_ipt_entry *e, unsigned int *i) return 0; } -static inline int +static int check_compat_entry_size_and_hooks(struct compat_ipt_entry *e, struct xt_table_info *newinfo, unsigned int *size, @@ -1637,7 +1643,8 @@ compat_copy_entry_from_user(struct compat_ipt_entry *e, void **dstptr, return ret; } -static inline int compat_check_entry(struct ipt_entry *e, const char *name, +static int +compat_check_entry(struct ipt_entry *e, const char *name, unsigned int *i) { int j, ret; diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index 4ed16d254b98..dd7860fea61f 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -90,6 +90,7 @@ ip6t_ext_hdr(u8 nexthdr) } /* Returns whether matches rule or not. */ +/* Performance critical - called for every packet */ static inline bool ip6_packet_match(const struct sk_buff *skb, const char *indev, @@ -182,7 +183,7 @@ ip6_packet_match(const struct sk_buff *skb, } /* should be ip6 safe */ -static inline bool +static bool ip6_checkentry(const struct ip6t_ip6 *ipv6) { if (ipv6->flags & ~IP6T_F_MASK) { @@ -212,8 +213,9 @@ ip6t_error(struct sk_buff *skb, return NF_DROP; } -static inline -bool do_match(struct ip6t_entry_match *m, +/* Performance critical - called for every packet */ +static inline bool +do_match(struct ip6t_entry_match *m, const struct sk_buff *skb, const struct net_device *in, const struct net_device *out, @@ -236,6 +238,7 @@ get_entry(void *base, unsigned int offset) } /* All zeroes == unconditional rule. */ +/* Mildly perf critical (only if packet tracing is on) */ static inline int unconditional(const struct ip6t_ip6 *ipv6) { @@ -251,7 +254,7 @@ unconditional(const struct ip6t_ip6 *ipv6) #if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \ defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE) /* This cries for unification! */ -static const char *hooknames[] = { +static const char *const hooknames[] = { [NF_INET_PRE_ROUTING] = "PREROUTING", [NF_INET_LOCAL_IN] = "INPUT", [NF_INET_FORWARD] = "FORWARD", @@ -265,7 +268,7 @@ enum nf_ip_trace_comments { NF_IP6_TRACE_COMMENT_POLICY, }; -static const char *comments[] = { +static const char *const comments[] = { [NF_IP6_TRACE_COMMENT_RULE] = "rule", [NF_IP6_TRACE_COMMENT_RETURN] = "return", [NF_IP6_TRACE_COMMENT_POLICY] = "policy", @@ -281,6 +284,7 @@ static struct nf_loginfo trace_loginfo = { }, }; +/* Mildly perf critical (only if packet tracing is on) */ static inline int get_chainname_rulenum(struct ip6t_entry *s, struct ip6t_entry *e, char *hookname, char **chainname, @@ -595,7 +599,7 @@ mark_source_chains(struct xt_table_info *newinfo, return 1; } -static inline int +static int cleanup_match(struct ip6t_entry_match *m, unsigned int *i) { if (i && (*i)-- == 0) @@ -607,7 +611,7 @@ cleanup_match(struct ip6t_entry_match *m, unsigned int *i) return 0; } -static inline int +static int check_entry(struct ip6t_entry *e, const char *name) { struct ip6t_entry_target *t; @@ -628,7 +632,7 @@ check_entry(struct ip6t_entry *e, const char *name) return 0; } -static inline int check_match(struct ip6t_entry_match *m, const char *name, +static int check_match(struct ip6t_entry_match *m, const char *name, const struct ip6t_ip6 *ipv6, unsigned int hookmask, unsigned int *i) { @@ -651,7 +655,7 @@ static inline int check_match(struct ip6t_entry_match *m, const char *name, return ret; } -static inline int +static int find_check_match(struct ip6t_entry_match *m, const char *name, const struct ip6t_ip6 *ipv6, @@ -680,7 +684,7 @@ err: return ret; } -static inline int check_target(struct ip6t_entry *e, const char *name) +static int check_target(struct ip6t_entry *e, const char *name) { struct ip6t_entry_target *t; struct xt_target *target; @@ -701,7 +705,7 @@ static inline int check_target(struct ip6t_entry *e, const char *name) return ret; } -static inline int +static int find_check_entry(struct ip6t_entry *e, const char *name, unsigned int size, unsigned int *i) { @@ -745,7 +749,7 @@ find_check_entry(struct ip6t_entry *e, const char *name, unsigned int size, return ret; } -static inline int +static int check_entry_size_and_hooks(struct ip6t_entry *e, struct xt_table_info *newinfo, unsigned char *base, @@ -788,7 +792,7 @@ check_entry_size_and_hooks(struct ip6t_entry *e, return 0; } -static inline int +static int cleanup_entry(struct ip6t_entry *e, unsigned int *i) { struct ip6t_entry_target *t; @@ -944,7 +948,7 @@ get_counters(const struct xt_table_info *t, } } -static inline struct xt_counters *alloc_counters(struct xt_table *table) +static struct xt_counters *alloc_counters(struct xt_table *table) { unsigned int countersize; struct xt_counters *counters; @@ -1494,7 +1498,7 @@ out: return ret; } -static inline int +static int compat_find_calc_match(struct ip6t_entry_match *m, const char *name, const struct ip6t_ip6 *ipv6, @@ -1518,7 +1522,7 @@ compat_find_calc_match(struct ip6t_entry_match *m, return 0; } -static inline int +static int compat_release_match(struct ip6t_entry_match *m, unsigned int *i) { if (i && (*i)-- == 0) @@ -1528,7 +1532,7 @@ compat_release_match(struct ip6t_entry_match *m, unsigned int *i) return 0; } -static inline int +static int compat_release_entry(struct compat_ip6t_entry *e, unsigned int *i) { struct ip6t_entry_target *t; @@ -1543,7 +1547,7 @@ compat_release_entry(struct compat_ip6t_entry *e, unsigned int *i) return 0; } -static inline int +static int check_compat_entry_size_and_hooks(struct compat_ip6t_entry *e, struct xt_table_info *newinfo, unsigned int *size, @@ -1666,7 +1670,7 @@ compat_copy_entry_from_user(struct compat_ip6t_entry *e, void **dstptr, return ret; } -static inline int compat_check_entry(struct ip6t_entry *e, const char *name, +static int compat_check_entry(struct ip6t_entry *e, const char *name, unsigned int *i) { int j, ret;