diff --git a/src/USER-DPD/pair_dpd_fdt.cpp b/src/USER-DPD/pair_dpd_fdt.cpp
index 1cb9d68d06..055a82df17 100644
--- a/src/USER-DPD/pair_dpd_fdt.cpp
+++ b/src/USER-DPD/pair_dpd_fdt.cpp
@@ -313,7 +313,7 @@ void PairDPDfdt::init_style()
     error->all(FLERR,"Pair dpd/fdt requires ghost atoms store velocity");
 
   splitFDT_flag = false;
-  int irequest = neighbor->request(this,instance_me);
+  neighbor->request(this,instance_me);
   for (int i = 0; i < modify->nfix; i++)
     if (strncmp(modify->fix[i]->style,"shardlow", 8) == 0){
       splitFDT_flag = true;
diff --git a/src/USER-DPD/pair_dpd_fdt_energy.cpp b/src/USER-DPD/pair_dpd_fdt_energy.cpp
index 22741a055d..6890118635 100644
--- a/src/USER-DPD/pair_dpd_fdt_energy.cpp
+++ b/src/USER-DPD/pair_dpd_fdt_energy.cpp
@@ -406,7 +406,7 @@ void PairDPDfdtEnergy::init_style()
     error->all(FLERR,"Pair dpd/fdt/energy requires ghost atoms store velocity");
 
   splitFDT_flag = false;
-  int irequest = neighbor->request(this,instance_me);
+  neighbor->request(this,instance_me);
   for (int i = 0; i < modify->nfix; i++)
     if (strncmp(modify->fix[i]->style,"shardlow", 8) == 0){
       splitFDT_flag = true;
diff --git a/src/USER-DRUDE/pair_lj_cut_thole_long.cpp b/src/USER-DRUDE/pair_lj_cut_thole_long.cpp
index 851effd89c..1aca4afb6c 100644
--- a/src/USER-DRUDE/pair_lj_cut_thole_long.cpp
+++ b/src/USER-DRUDE/pair_lj_cut_thole_long.cpp
@@ -357,7 +357,7 @@ void PairLJCutTholeLong::init_style()
       error->all(FLERR, "Pair style lj/cut/thole/long requires fix drude");
   fix_drude = (FixDrude *) modify->fix[ifix];
 
-  int irequest = neighbor->request(this,instance_me);
+  neighbor->request(this,instance_me);
 
   cut_coulsq = cut_coul * cut_coul;
 
diff --git a/src/USER-MISC/pair_kolmogorov_crespi_full.cpp b/src/USER-MISC/pair_kolmogorov_crespi_full.cpp
index 88ab66e372..f2e74666d9 100644
--- a/src/USER-MISC/pair_kolmogorov_crespi_full.cpp
+++ b/src/USER-MISC/pair_kolmogorov_crespi_full.cpp
@@ -549,7 +549,7 @@ void PairKolmogorovCrespiFull::calc_FRep(int eflag, int /* vflag */)
   int i,j,ii,jj,inum,jnum,itype,jtype,k,kk;
   double prodnorm1,fkcx,fkcy,fkcz;
   double xtmp,ytmp,ztmp,delx,dely,delz,evdwl,fpair,fpair1;
-  double rsq,r,rhosq1,exp0,exp1,r2inv,r6inv,Tap,dTap,Vkc;
+  double rsq,r,rhosq1,exp0,exp1,r2inv,Tap,dTap,Vkc;
   double frho_ij,sumC1,sumC11,sumCff,fsum,rho_ij;
   int *ilist,*jlist,*numneigh,**firstneigh;
   int *KC_neighs_i;
@@ -607,7 +607,6 @@ void PairKolmogorovCrespiFull::calc_FRep(int eflag, int /* vflag */)
 
         r = sqrt(rsq);
         r2inv = 1.0/rsq;
-        r6inv = r2inv*r2inv*r2inv;
 
 	// turn on/off taper function
 	if (tap_flag) {