diff -u b/dmidecode.c b/dmidecode.c
--- b/dmidecode.c
+++ b/dmidecode.c
@@ -90,7 +90,7 @@
 #define FLAG_NO_FILE_OFFSET     (1 << 0)
 #define FLAG_STOP_AT_EOT        (1 << 1)
 
-#define SYS_FIRMWARE_DIR "/sys/firmware/dmi/tables"
+#define SYS_FIRMWARE_DIR "/proc"
 #define SYS_ENTRY_FILE SYS_FIRMWARE_DIR "/smbios_entry_point"
 #define SYS_TABLE_FILE SYS_FIRMWARE_DIR "/DMI"
 
@@ -3654,8 +3654,6 @@
 {
 	if (addrtype == 0x1) /* IPv4 */
 		return inet_ntop(AF_INET, data, storage, 64);
-	if (addrtype == 0x2) /* IPv6 */
-		return inet_ntop(AF_INET6, data, storage, 64);
 	return out_of_spec;
 }
 
@@ -5278,7 +5276,7 @@
 	if ((flags & FLAG_NO_FILE_OFFSET) || (opt.flags & FLAG_FROM_DUMP))
 	{
 		/*
-		 * When reading from sysfs or from a dump file, the file may be
+		 * When reading from procfs or from a dump file, the file may be
 		 * shorter than announced. For SMBIOS v3 this is expcted, as we
 		 * only know the maximum table size, not the actual table size.
 		 * For older implementations (and for SMBIOS v3 too), this
@@ -5647,11 +5645,11 @@
 	 * the largest one, then determine what type it contains.
 	 */
 	size = 0x20;
-	if (!(opt.flags & FLAG_NO_SYSFS)
+	if (!(opt.flags & FLAG_NO_PROCFS)
 	 && (buf = read_file(0, &size, SYS_ENTRY_FILE)) != NULL)
 	{
 		if (!(opt.flags & FLAG_QUIET))
-			pr_info("Getting SMBIOS data from sysfs.");
+			pr_info("Getting SMBIOS data from procfs.");
 		if (size >= 24 && memcmp(buf, "_SM3_", 5) == 0)
 		{
 			if (smbios3_decode(buf, SYS_TABLE_FILE, FLAG_NO_FILE_OFFSET))
@@ -5671,7 +5669,7 @@
 		if (found)
 			goto done;
 		if (!(opt.flags & FLAG_QUIET))
-			pr_info("Failed to get SMBIOS data from sysfs.");
+			pr_info("Failed to get SMBIOS data from procfs.");
 	}
 
 	/* Next try EFI (ia64, Intel-based Mac, arm64) */