diff --git a/mozilla/nsprpub/pr/include/md/_linux.cfg b/mozilla/nsprpub/pr/include/md/_linux.cfg
index f1d89314da7..465c64ea29f 100644
--- a/mozilla/nsprpub/pr/include/md/_linux.cfg
+++ b/mozilla/nsprpub/pr/include/md/_linux.cfg
@@ -508,51 +508,6 @@
 #define PR_BYTES_PER_WORD_LOG2   2
 #define PR_BYTES_PER_DWORD_LOG2  3
 
-#elif defined(__s390__)
-
-#define IS_BIG_ENDIAN 1
-#undef  IS_LITTLE_ENDIAN
-
-#define PR_BYTES_PER_BYTE   1
-#define PR_BYTES_PER_SHORT  2
-#define PR_BYTES_PER_INT    4
-#define PR_BYTES_PER_INT64  8
-#define PR_BYTES_PER_LONG   4
-#define PR_BYTES_PER_FLOAT  4
-#define PR_BYTES_PER_DOUBLE 8
-#define PR_BYTES_PER_WORD   4
-#define PR_BYTES_PER_DWORD  8
-
-#define PR_BITS_PER_BYTE    8
-#define PR_BITS_PER_SHORT   16
-#define PR_BITS_PER_INT     32
-#define PR_BITS_PER_INT64   64
-#define PR_BITS_PER_LONG    32
-#define PR_BITS_PER_FLOAT   32
-#define PR_BITS_PER_DOUBLE  64
-#define PR_BITS_PER_WORD    32
-
-#define PR_BITS_PER_BYTE_LOG2   3
-#define PR_BITS_PER_SHORT_LOG2  4
-#define PR_BITS_PER_INT_LOG2    5
-#define PR_BITS_PER_INT64_LOG2  6
-#define PR_BITS_PER_LONG_LOG2   5
-#define PR_BITS_PER_FLOAT_LOG2  5
-#define PR_BITS_PER_DOUBLE_LOG2 6
-#define PR_BITS_PER_WORD_LOG2   5
-
-#define PR_ALIGN_OF_SHORT   2
-#define PR_ALIGN_OF_INT     4
-#define PR_ALIGN_OF_LONG    4
-#define PR_ALIGN_OF_INT64   4
-#define PR_ALIGN_OF_FLOAT   4
-#define PR_ALIGN_OF_DOUBLE  4
-#define PR_ALIGN_OF_POINTER 4
-#define PR_ALIGN_OF_WORD    4
-
-#define PR_BYTES_PER_WORD_LOG2   2
-#define PR_BYTES_PER_DWORD_LOG2  3
-
 #elif defined(__s390x__)
 
 #define IS_BIG_ENDIAN 1
@@ -599,6 +554,51 @@
 #define PR_BYTES_PER_WORD_LOG2   3
 #define PR_BYTES_PER_DWORD_LOG2  3
 
+#elif defined(__s390__)
+
+#define IS_BIG_ENDIAN 1
+#undef  IS_LITTLE_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
 #else
 
 #error "Unknown CPU architecture"
diff --git a/mozilla/nsprpub/pr/include/md/_linux.h b/mozilla/nsprpub/pr/include/md/_linux.h
index f68dfff1e08..68a9265ff9c 100644
--- a/mozilla/nsprpub/pr/include/md/_linux.h
+++ b/mozilla/nsprpub/pr/include/md/_linux.h
@@ -66,10 +66,10 @@
 #define _PR_SI_ARCHITECTURE "arm"
 #elif defined(__hppa__)
 #define _PR_SI_ARCHITECTURE "hppa"
-#elif defined(__s390__)
-#define _PR_SI_ARCHITECTURE "s390"
 #elif defined(__s390x__)
 #define _PR_SI_ARCHITECTURE "s390x"
+#elif defined(__s390__)
+#define _PR_SI_ARCHITECTURE "s390"
 #else
 #error "Unknown CPU architecture"
 #endif