Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index 1e0656d..11085e4 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/kernel/ptrace_64.c
  *
@@ -10,10 +11,6 @@
  *   Original x86 implementation:
  *	By Ross Biro 1/23/92
  *	edited by Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/kernel.h>
 #include <linux/rwsem.h>
@@ -553,7 +550,7 @@
 	   continually stepping. */
 	local_irq_enable();
 	regs->sr &= ~SR_SSTEP;
-	force_sig(SIGTRAP, current);
+	force_sig(SIGTRAP);
 }
 
 /* Called with interrupts disabled */
@@ -564,7 +561,7 @@
 	/* We need to forward step the PC, to counteract the backstep done
 	   in signal.c. */
 	local_irq_enable();
-	force_sig(SIGTRAP, current);
+	force_sig(SIGTRAP);
 	regs->pc += 4;
 }