kernel: compile out SNMP MIB related counting if debloat-proc is active - improves...

[openwrt.git] / target / linux / generic / patches-4.1 / 902-debloat_proc.patch

diff --git a/target/linux/generic/patches-4.1/902-debloat_proc.patch b/target/linux/generic/patches-4.1/902-debloat_proc.patch
index ae72150..65d6cf8 100644 (file)
--- a/target/linux/generic/patches-4.1/902-debloat_proc.patch
+++ b/target/linux/generic/patches-4.1/902-debloat_proc.patch
@@ -339,3 +339,47 @@
        remove_proc_entry("dev", net->proc_net);
  }
  
+--- a/include/net/snmp.h
++++ b/include/net/snmp.h
+@@ -123,6 +123,30 @@ struct linux_xfrm_mib {
+ #define DECLARE_SNMP_STAT(type, name) \
+       extern __typeof__(type) __percpu *name
+ 
++#ifdef CONFIG_PROC_STRIPPED
++#define SNMP_INC_STATS_BH(mib, field) \
++      do { (void) mib->mibs[0]; } while(0)
++#define SNMP_INC_STATS_USER(mib, field)       \
++      do { (void) mib->mibs[0]; } while(0)
++#define SNMP_INC_STATS_ATOMIC_LONG(mib, field)        \
++      do { (void) mib->mibs[0]; } while(0)
++#define SNMP_INC_STATS(mib, field)    \
++      do { (void) mib->mibs[0]; } while(0)
++#define SNMP_DEC_STATS(mib, field)    \
++      do { (void) mib->mibs[0]; } while(0)
++#define SNMP_ADD_STATS_BH(mib, field, addend) \
++      do { (void) mib->mibs[0]; } while(0)
++#define SNMP_ADD_STATS_USER(mib, field, addend)       \
++      do { (void) mib->mibs[0]; } while(0)
++#define SNMP_ADD_STATS(mib, field, addend)    \
++      do { (void) mib->mibs[0]; } while(0)
++#define SNMP_UPD_PO_STATS(mib, basefield, addend)     \
++      do { (void) mib->mibs[0]; } while(0)
++#define SNMP_UPD_PO_STATS_BH(mib, basefield, addend)  \
++      do { (void) mib->mibs[0]; } while(0)
++
++#else
++
+ #define SNMP_INC_STATS_BH(mib, field) \
+                       __this_cpu_inc(mib->mibs[field])
+ 
+@@ -159,8 +183,9 @@ struct linux_xfrm_mib {
+               __this_cpu_add(ptr[basefield##OCTETS], addend); \
+       } while (0)
+ 
++#endif
+ 
+-#if BITS_PER_LONG==32
++#if (BITS_PER_LONG==32) && !defined(CONFIG_PROC_STRIPPED)
+ 
+ #define SNMP_ADD_STATS64_BH(mib, field, addend)                       \
+       do {                                                            \