diff --git a/cmd/zdb/zdb.c b/cmd/zdb/zdb.c
index 7735434206..788d0d1d4b 100644
--- a/cmd/zdb/zdb.c
+++ b/cmd/zdb/zdb.c
@@ -1663,7 +1663,7 @@ dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
 {
 	time_t timestamp = ub->ub_timestamp;
 
-	(void) printf(header ? header : "");
+	(void) printf("%s", header ? header : "");
 	(void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
 	(void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
 	(void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
@@ -1675,7 +1675,7 @@ dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
 		sprintf_blkptr(blkbuf, &ub->ub_rootbp);
 		(void) printf("\trootbp = %s\n", blkbuf);
 	}
-	(void) printf(footer ? footer : "");
+	(void) printf("%s", footer ? footer : "");
 }
 
 static void
diff --git a/module/zfs/zfs_fm.c b/module/zfs/zfs_fm.c
index 5138f49e52..409f4f99fb 100644
--- a/module/zfs/zfs_fm.c
+++ b/module/zfs/zfs_fm.c
@@ -420,7 +420,7 @@ update_histogram(uint64_t value_arg, uint16_t *hist, uint32_t *count)
  * to the new smallest gap, to prepare for our next invocation.
  */
 static void
-shrink_ranges(zfs_ecksum_info_t *eip)
+zei_shrink_ranges(zfs_ecksum_info_t *eip)
 {
 	uint32_t mingap = UINT32_MAX;
 	uint32_t new_allowed_gap = eip->zei_mingap + 1;
@@ -465,13 +465,13 @@ shrink_ranges(zfs_ecksum_info_t *eip)
 }
 
 static void
-add_range(zfs_ecksum_info_t *eip, int start, int end)
+zei_add_range(zfs_ecksum_info_t *eip, int start, int end)
 {
 	struct zei_ranges *r = eip->zei_ranges;
 	size_t count = eip->zei_range_count;
 
 	if (count >= MAX_RANGES) {
-		shrink_ranges(eip);
+		zei_shrink_ranges(eip);
 		count = eip->zei_range_count;
 	}
 	if (count == 0) {
@@ -493,7 +493,7 @@ add_range(zfs_ecksum_info_t *eip, int start, int end)
 }
 
 static size_t
-range_total_size(zfs_ecksum_info_t *eip)
+zei_range_total_size(zfs_ecksum_info_t *eip)
 {
 	struct zei_ranges *r = eip->zei_ranges;
 	size_t count = eip->zei_range_count;
@@ -570,7 +570,7 @@ annotate_ecksum(nvlist_t *ereport, zio_bad_cksum_t *info,
 			if (start == -1)
 				continue;
 
-			add_range(eip, start, idx);
+			zei_add_range(eip, start, idx);
 			start = -1;
 		} else {
 			if (start != -1)
@@ -580,10 +580,10 @@ annotate_ecksum(nvlist_t *ereport, zio_bad_cksum_t *info,
 		}
 	}
 	if (start != -1)
-		add_range(eip, start, idx);
+		zei_add_range(eip, start, idx);
 
 	/* See if it will fit in our inline buffers */
-	inline_size = range_total_size(eip);
+	inline_size = zei_range_total_size(eip);
 	if (inline_size > ZFM_MAX_INLINE)
 		no_inline = 1;
 
diff --git a/module/zpios/zpios.c b/module/zpios/zpios.c
index 9aa3b5c1bb..3edc16105f 100644
--- a/module/zpios/zpios.c
+++ b/module/zpios/zpios.c
@@ -1042,7 +1042,7 @@ zpios_ioctl_cmd(struct file *file, unsigned long arg)
 	kcmd = kmem_alloc(sizeof(zpios_cmd_t), KM_SLEEP);
 	if (kcmd == NULL) {
 		zpios_print(file, "Unable to kmem_alloc() %ld byte for "
-			    "zpios_cmd_t\n", sizeof(zpios_cmd_t));
+			    "zpios_cmd_t\n", (long int)sizeof(zpios_cmd_t));
 		return -ENOMEM;
 	}