[IPV4]: Consolidate common SNMP code
This patch moves the SNMP code shared between IPv4/IPv6 from proc.c
into net/ipv4/af_inet.c. This makes sense because these functions
aren't specific to /proc.
As a result we can again skip proc.o if /proc is disabled.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index a236154..37ab580 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -45,7 +45,6 @@
#include <net/sock.h>
#include <net/raw.h>
-#ifdef CONFIG_PROC_FS
static int fold_prot_inuse(struct proto *proto)
{
int res = 0;
@@ -88,19 +87,6 @@
.release = single_release,
};
-static unsigned long
-fold_field(void *mib[], int offt)
-{
- unsigned long res = 0;
- int i;
-
- for_each_possible_cpu(i) {
- res += *(((unsigned long *) per_cpu_ptr(mib[0], i)) + offt);
- res += *(((unsigned long *) per_cpu_ptr(mib[1], i)) + offt);
- }
- return res;
-}
-
/* snmp items */
static const struct snmp_mib snmp4_ipstats_list[] = {
SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INRECEIVES),
@@ -267,8 +253,8 @@
for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) ip_statistics,
- snmp4_ipstats_list[i].entry));
+ snmp_fold_field((void **)ip_statistics,
+ snmp4_ipstats_list[i].entry));
seq_puts(seq, "\nIcmp:");
for (i = 0; snmp4_icmp_list[i].name != NULL; i++)
@@ -277,8 +263,8 @@
seq_puts(seq, "\nIcmp:");
for (i = 0; snmp4_icmp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) icmp_statistics,
- snmp4_icmp_list[i].entry));
+ snmp_fold_field((void **)icmp_statistics,
+ snmp4_icmp_list[i].entry));
seq_puts(seq, "\nTcp:");
for (i = 0; snmp4_tcp_list[i].name != NULL; i++)
@@ -289,12 +275,12 @@
/* MaxConn field is signed, RFC 2012 */
if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
seq_printf(seq, " %ld",
- fold_field((void **) tcp_statistics,
- snmp4_tcp_list[i].entry));
+ snmp_fold_field((void **)tcp_statistics,
+ snmp4_tcp_list[i].entry));
else
seq_printf(seq, " %lu",
- fold_field((void **) tcp_statistics,
- snmp4_tcp_list[i].entry));
+ snmp_fold_field((void **)tcp_statistics,
+ snmp4_tcp_list[i].entry));
}
seq_puts(seq, "\nUdp:");
@@ -304,8 +290,8 @@
seq_puts(seq, "\nUdp:");
for (i = 0; snmp4_udp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) udp_statistics,
- snmp4_udp_list[i].entry));
+ snmp_fold_field((void **)udp_statistics,
+ snmp4_udp_list[i].entry));
/* the UDP and UDP-Lite MIBs are the same */
seq_puts(seq, "\nUdpLite:");
@@ -315,8 +301,8 @@
seq_puts(seq, "\nUdpLite:");
for (i = 0; snmp4_udp_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) udplite_statistics,
- snmp4_udp_list[i].entry) );
+ snmp_fold_field((void **)udplite_statistics,
+ snmp4_udp_list[i].entry));
seq_putc(seq, '\n');
return 0;
@@ -349,8 +335,8 @@
seq_puts(seq, "\nTcpExt:");
for (i = 0; snmp4_net_list[i].name != NULL; i++)
seq_printf(seq, " %lu",
- fold_field((void **) net_statistics,
- snmp4_net_list[i].entry));
+ snmp_fold_field((void **)net_statistics,
+ snmp4_net_list[i].entry));
seq_putc(seq, '\n');
return 0;
@@ -391,30 +377,4 @@
rc = -ENOMEM;
goto out;
}
-#endif
-
-int snmp_mib_init(void *ptr[2], size_t mibsize, size_t mibalign)
-{
- BUG_ON(ptr == NULL);
- ptr[0] = __alloc_percpu(mibsize);
- if (!ptr[0])
- goto err0;
- ptr[1] = __alloc_percpu(mibsize);
- if (!ptr[1])
- goto err1;
- return 0;
-err1:
- free_percpu(ptr[0]);
- ptr[0] = NULL;
-err0:
- return -ENOMEM;
-}
-
-void snmp_mib_free(void *ptr[2])
-{
- BUG_ON(ptr == NULL);
- free_percpu(ptr[0]);
- free_percpu(ptr[1]);
- ptr[0] = ptr[1] = NULL;
-}