Index: sys/compat/linuxkpi/common/include/linux/printk.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/printk.h
+++ sys/compat/linuxkpi/common/include/linux/printk.h
@@ -48,7 +48,7 @@
 
 void lkpi_hex_dump(int(*)(void *, const char *, ...), void *arg1,
     const char *, const char *, const int, const int, const int,
-    const void *, size_t, const bool);
+    const void *, size_t, const bool, const bool);
 
 static inline void
 print_hex_dump(const char *level, const char *prefix_str,
@@ -56,7 +56,7 @@
     const void *buf, size_t len, const bool ascii)
 {
 	lkpi_hex_dump(__lkpi_hexdump_printf, NULL, level, prefix_str, prefix_type,
-	    rowsize, groupsize, buf, len, ascii);
+	    rowsize, groupsize, buf, len, ascii, true);
 }
 
 static inline void
Index: sys/compat/linuxkpi/common/include/linux/seq_file.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/seq_file.h
+++ sys/compat/linuxkpi/common/include/linux/seq_file.h
@@ -115,7 +115,7 @@
     int rowsize, int groupsize, const void *buf, size_t len, bool ascii)
 {
 	lkpi_hex_dump(__lkpi_hexdump_sbuf_printf, m->buf, NULL, prefix_str, prefix_type,
-	    rowsize, groupsize, buf, len, ascii);
+	    rowsize, groupsize, buf, len, ascii, true);
 }
 
 #define	file			linux_file
Index: sys/compat/linuxkpi/common/src/linux_compat.c
===================================================================
--- sys/compat/linuxkpi/common/src/linux_compat.c
+++ sys/compat/linuxkpi/common/src/linux_compat.c
@@ -1999,7 +1999,7 @@
 lkpi_hex_dump(int(*_fpf)(void *, const char *, ...), void *arg1,
     const char *level, const char *prefix_str,
     const int prefix_type, const int rowsize, const int groupsize,
-    const void *buf, size_t len, const bool ascii)
+    const void *buf, size_t len, const bool ascii, const bool trailing_newline)
 {
 	typedef const struct { long long value; } __packed *print_64p_t;
 	typedef const struct { uint32_t value; } __packed *print_32p_t;
@@ -2083,9 +2083,11 @@
 				break;
 			}
 		}
-		ret = _fpf(arg1, "\n");
-		if (ret < 0)
-			break;
+		if (len > 0 && trailing_newline) {
+			ret = _fpf(arg1, "\n");
+			if (ret < 0)
+				break;
+		}
 	}
 }