Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/scsi/scsi_debugfs.c b/drivers/scsi/scsi_debugfs.c
index c5a8756..c19ea7a 100644
--- a/drivers/scsi/scsi_debugfs.c
+++ b/drivers/scsi/scsi_debugfs.c
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <linux/bitops.h>
 #include <linux/seq_file.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_dbg.h>
@@ -18,9 +19,7 @@
 	bool sep = false;
 	int i;
 
-	for (i = 0; i < sizeof(flags) * BITS_PER_BYTE; i++) {
-		if (!(flags & BIT(i)))
-			continue;
+	for_each_set_bit(i, &flags, BITS_PER_LONG) {
 		if (sep)
 			seq_puts(m, "|");
 		sep = true;