diff --git a/sys/dev/hwpmc/hwpmc_amd.c b/sys/dev/hwpmc/hwpmc_amd.c
--- a/sys/dev/hwpmc/hwpmc_amd.c
+++ b/sys/dev/hwpmc/hwpmc_amd.c
@@ -905,8 +905,6 @@
 static int
 amd_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	int error;
-	size_t copied;
 	const struct amd_descr *pd;
 	struct pmc_hw *phw;
 
@@ -918,10 +916,7 @@
 	phw = &amd_pcpu[cpu]->pc_amdpmcs[ri];
 	pd  = &amd_pmcdesc[ri];
 
-	if ((error = copystr(pd->pm_descr.pd_name, pi->pm_name,
-		 PMC_NAME_MAX, &copied)) != 0)
-		return error;
-
+	strlcpy(pi->pm_name, pd->pm_descr.pd_name, sizeof(pi->pm_name));
 	pi->pm_class = pd->pm_descr.pd_class;
 
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
diff --git a/sys/dev/hwpmc/hwpmc_arm64.c b/sys/dev/hwpmc/hwpmc_arm64.c
--- a/sys/dev/hwpmc/hwpmc_arm64.c
+++ b/sys/dev/hwpmc/hwpmc_arm64.c
@@ -416,9 +416,7 @@
 static int
 arm64_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	char arm64_name[PMC_NAME_MAX];
 	struct pmc_hw *phw;
-	int error;
 
 	KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
 	    ("[arm64,%d], illegal CPU %d", __LINE__, cpu));
@@ -426,11 +424,10 @@
 	    ("[arm64,%d] row-index %d out of range", __LINE__, ri));
 
 	phw = &arm64_pcpu[cpu]->pc_arm64pmcs[ri];
-	snprintf(arm64_name, sizeof(arm64_name), "ARMV8-%d", ri);
-	if ((error = copystr(arm64_name, pi->pm_name, PMC_NAME_MAX,
-	    NULL)) != 0)
-		return (error);
+
+	snprintf(pi->pm_name, sizeof(pi->pm_name), "ARMV8-%d", ri);
 	pi->pm_class = PMC_CLASS_ARMV8;
+
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
 		pi->pm_enabled = TRUE;
 		*ppmc = phw->phw_pmc;
diff --git a/sys/dev/hwpmc/hwpmc_armv7.c b/sys/dev/hwpmc/hwpmc_armv7.c
--- a/sys/dev/hwpmc/hwpmc_armv7.c
+++ b/sys/dev/hwpmc/hwpmc_armv7.c
@@ -384,9 +384,7 @@
 static int
 armv7_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	char armv7_name[PMC_NAME_MAX];
 	struct pmc_hw *phw;
-	int error;
 
 	KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
 	    ("[armv7,%d], illegal CPU %d", __LINE__, cpu));
@@ -394,11 +392,10 @@
 	    ("[armv7,%d] row-index %d out of range", __LINE__, ri));
 
 	phw = &armv7_pcpu[cpu]->pc_armv7pmcs[ri];
-	snprintf(armv7_name, sizeof(armv7_name), "ARMV7-%d", ri);
-	if ((error = copystr(armv7_name, pi->pm_name, PMC_NAME_MAX,
-	    NULL)) != 0)
-		return error;
+
+	snprintf(pi->pm_name, sizeof(pi->pm_name), "ARMV7-%d", ri);
 	pi->pm_class = PMC_CLASS_ARMV7;
+
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
 		pi->pm_enabled = TRUE;
 		*ppmc = phw->phw_pmc;
diff --git a/sys/dev/hwpmc/hwpmc_cmn600.c b/sys/dev/hwpmc/hwpmc_cmn600.c
--- a/sys/dev/hwpmc/hwpmc_cmn600.c
+++ b/sys/dev/hwpmc/hwpmc_cmn600.c
@@ -587,9 +587,8 @@
 static int
 cmn600_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
+	struct pmc_descr *pd;
 	struct pmc_hw *phw;
-	size_t copied;
-	int error;
 
 	KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
 	    ("[cmn600,%d] illegal CPU %d", __LINE__, cpu));
@@ -597,12 +596,10 @@
 	    ri));
 
 	phw = cmn600desc(ri)->pd_phw;
+	pd = &cmn600desc(ri)->pd_descr;
 
-	if ((error = copystr(cmn600desc(ri)->pd_descr.pd_name,
-	    pi->pm_name, PMC_NAME_MAX, &copied)) != 0)
-		return (error);
-
-	pi->pm_class = cmn600desc(ri)->pd_descr.pd_class;
+	strlcpy(pi->pm_name, pd->pd_name, sizeof(pi->pm_name));
+	pi->pm_class = pd->pd_class;
 
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
 		pi->pm_enabled = TRUE;
diff --git a/sys/dev/hwpmc/hwpmc_core.c b/sys/dev/hwpmc/hwpmc_core.c
--- a/sys/dev/hwpmc/hwpmc_core.c
+++ b/sys/dev/hwpmc/hwpmc_core.c
@@ -330,17 +330,11 @@
 static int
 iaf_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	int error;
 	struct pmc_hw *phw;
-	char iaf_name[PMC_NAME_MAX];
 
 	phw = &core_pcpu[cpu]->pc_corepmcs[ri + core_iaf_ri];
 
-	(void) snprintf(iaf_name, sizeof(iaf_name), "IAF-%d", ri);
-	if ((error = copystr(iaf_name, pi->pm_name, PMC_NAME_MAX,
-	    NULL)) != 0)
-		return (error);
-
+	snprintf(pi->pm_name, sizeof(pi->pm_name), "IAF-%d", ri);
 	pi->pm_class = PMC_CLASS_IAF;
 
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
@@ -814,17 +808,11 @@
 static int
 iap_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	int error;
 	struct pmc_hw *phw;
-	char iap_name[PMC_NAME_MAX];
 
 	phw = &core_pcpu[cpu]->pc_corepmcs[ri];
 
-	(void) snprintf(iap_name, sizeof(iap_name), "IAP-%d", ri);
-	if ((error = copystr(iap_name, pi->pm_name, PMC_NAME_MAX,
-	    NULL)) != 0)
-		return (error);
-
+	snprintf(pi->pm_name, sizeof(pi->pm_name), "IAP-%d", ri);
 	pi->pm_class = PMC_CLASS_IAP;
 
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
diff --git a/sys/dev/hwpmc/hwpmc_dmc620.c b/sys/dev/hwpmc/hwpmc_dmc620.c
--- a/sys/dev/hwpmc/hwpmc_dmc620.c
+++ b/sys/dev/hwpmc/hwpmc_dmc620.c
@@ -454,9 +454,8 @@
 CLASSDEP_FN4(dmc620_describe, int, cpu, int, ri, struct pmc_info *, pi,
     struct pmc **, ppmc)
 {
+	struct pmc_descr *pd;
 	struct pmc_hw *phw;
-	size_t copied;
-	int error;
 
 	KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
 	    ("[dmc620,%d] illegal CPU %d", __LINE__, cpu));
@@ -464,12 +463,10 @@
 	    ri));
 
 	phw = dmc620desc(class, cpu, ri)->pd_phw;
+	pd = &dmc620desc(class, cpu, ri)->pd_descr;
 
-	if ((error = copystr(dmc620desc(class, cpu, ri)->pd_descr.pd_name,
-	    pi->pm_name, PMC_NAME_MAX, &copied)) != 0)
-		return (error);
-
-	pi->pm_class = dmc620desc(class, cpu, ri)->pd_descr.pd_class;
+	strlcpy(pi->pm_name, pd->pd_name, sizeof(pi->pm_name));
+	pi->pm_class = pd->pd_class;
 
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
 		pi->pm_enabled = TRUE;
diff --git a/sys/dev/hwpmc/hwpmc_powerpc.c b/sys/dev/hwpmc/hwpmc_powerpc.c
--- a/sys/dev/hwpmc/hwpmc_powerpc.c
+++ b/sys/dev/hwpmc/hwpmc_powerpc.c
@@ -122,19 +122,16 @@
 int
 powerpc_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	int error;
 	struct pmc_hw *phw;
-	char powerpc_name[PMC_NAME_MAX];
 
 	KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
 	    ("[powerpc,%d], illegal CPU %d", __LINE__, cpu));
 
 	phw = &powerpc_pcpu[cpu]->pc_ppcpmcs[ri];
-	snprintf(powerpc_name, sizeof(powerpc_name), "POWERPC-%d", ri);
-	if ((error = copystr(powerpc_name, pi->pm_name, PMC_NAME_MAX,
-	    NULL)) != 0)
-		return error;
+
+	snprintf(pi->pm_name, sizeof(pi->pm_name), "POWERPC-%d", ri);
 	pi->pm_class = powerpc_pcpu[cpu]->pc_class;
+
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
 		pi->pm_enabled = TRUE;
 		*ppmc          = phw->phw_pmc;
diff --git a/sys/dev/hwpmc/hwpmc_soft.c b/sys/dev/hwpmc/hwpmc_soft.c
--- a/sys/dev/hwpmc/hwpmc_soft.c
+++ b/sys/dev/hwpmc/hwpmc_soft.c
@@ -159,8 +159,6 @@
 static int
 soft_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	int error;
-	size_t copied;
 	const struct soft_descr *pd;
 	struct pmc_hw *phw;
 
@@ -172,10 +170,7 @@
 	phw = &soft_pcpu[cpu]->soft_hw[ri];
 	pd  = &soft_pmcdesc[ri];
 
-	if ((error = copystr(pd->pm_descr.pd_name, pi->pm_name,
-	    PMC_NAME_MAX, &copied)) != 0)
-		return (error);
-
+	strlcpy(pi->pm_name, pd->pm_descr.pd_name, sizeof(pi->pm_name));
 	pi->pm_class = pd->pm_descr.pd_class;
 
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
diff --git a/sys/dev/hwpmc/hwpmc_tsc.c b/sys/dev/hwpmc/hwpmc_tsc.c
--- a/sys/dev/hwpmc/hwpmc_tsc.c
+++ b/sys/dev/hwpmc/hwpmc_tsc.c
@@ -115,8 +115,6 @@
 static int
 tsc_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	int error;
-	size_t copied;
 	const struct tsc_descr *pd;
 	struct pmc_hw *phw;
 
@@ -127,10 +125,7 @@
 	phw = &tsc_pcpu[cpu]->tc_hw;
 	pd  = &tsc_pmcdesc[ri];
 
-	if ((error = copystr(pd->pm_descr.pd_name, pi->pm_name,
-	    PMC_NAME_MAX, &copied)) != 0)
-		return (error);
-
+	strlcpy(pi->pm_name, pd->pm_descr.pd_name, sizeof(pi->pm_name));
 	pi->pm_class = pd->pm_descr.pd_class;
 
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
diff --git a/sys/dev/hwpmc/hwpmc_uncore.c b/sys/dev/hwpmc/hwpmc_uncore.c
--- a/sys/dev/hwpmc/hwpmc_uncore.c
+++ b/sys/dev/hwpmc/hwpmc_uncore.c
@@ -233,17 +233,11 @@
 static int
 ucf_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	int error;
 	struct pmc_hw *phw;
-	char ucf_name[PMC_NAME_MAX];
 
 	phw = &uncore_pcpu[cpu]->pc_uncorepmcs[ri + uncore_ucf_ri];
 
-	(void) snprintf(ucf_name, sizeof(ucf_name), "UCF-%d", ri);
-	if ((error = copystr(ucf_name, pi->pm_name, PMC_NAME_MAX,
-	    NULL)) != 0)
-		return (error);
-
+	snprintf(pi->pm_name, sizeof(pi->pm_name), "UCF-%d", ri);
 	pi->pm_class = PMC_CLASS_UCF;
 
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
@@ -560,17 +554,11 @@
 static int
 ucp_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
 {
-	int error;
 	struct pmc_hw *phw;
-	char ucp_name[PMC_NAME_MAX];
 
 	phw = &uncore_pcpu[cpu]->pc_uncorepmcs[ri];
 
-	(void) snprintf(ucp_name, sizeof(ucp_name), "UCP-%d", ri);
-	if ((error = copystr(ucp_name, pi->pm_name, PMC_NAME_MAX,
-	    NULL)) != 0)
-		return (error);
-
+	snprintf(pi->pm_name, sizeof(pi->pm_name), "UCP-%d", ri);
 	pi->pm_class = PMC_CLASS_UCP;
 
 	if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {