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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/hexagon/kernel/traps.c
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@@ -1,21 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Kernel traps/events for Hexagon processor
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  *
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  * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 and
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- * only version 2 as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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- * 02110-1301, USA.
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  */
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 #include <linux/init.h>
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@@ -92,7 +79,7 @@
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 }
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 static void do_show_stack(struct task_struct *task, unsigned long *fp,
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-			  unsigned long ip)
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+			  unsigned long ip, const char *loglvl)
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 {
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 	int kstack_depth_to_print = 24;
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 	unsigned long offset, size;
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@@ -106,9 +93,8 @@
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 	if (task == NULL)
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 		task = current;
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-	printk(KERN_INFO "CPU#%d, %s/%d, Call Trace:\n",
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-	       raw_smp_processor_id(), task->comm,
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-	       task_pid_nr(task));
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+	printk("%sCPU#%d, %s/%d, Call Trace:\n", loglvl, raw_smp_processor_id(),
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+		task->comm, task_pid_nr(task));
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 	if (fp == NULL) {
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 		if (task == current) {
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@@ -121,7 +107,7 @@
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 	}
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 	if ((((unsigned long) fp) & 0x3) || ((unsigned long) fp < 0x1000)) {
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-		printk(KERN_INFO "-- Corrupt frame pointer %p\n", fp);
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+		printk("%s-- Corrupt frame pointer %p\n", loglvl, fp);
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 		return;
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 	}
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@@ -138,8 +124,7 @@
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 		name = kallsyms_lookup(ip, &size, &offset, &modname, tmpstr);
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126
 
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-		printk(KERN_INFO "[%p] 0x%lx: %s + 0x%lx", fp, ip, name,
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-			offset);
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+		printk("%s[%p] 0x%lx: %s + 0x%lx", loglvl, fp, ip, name, offset);
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 		if (((unsigned long) fp < low) || (high < (unsigned long) fp))
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 			printk(KERN_CONT " (FP out of bounds!)");
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 		if (modname)
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@@ -149,8 +134,7 @@
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 		newfp = (unsigned long *) *fp;
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 		if (((unsigned long) newfp) & 0x3) {
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-			printk(KERN_INFO "-- Corrupt frame pointer %p\n",
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-				newfp);
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+			printk("%s-- Corrupt frame pointer %p\n", loglvl, newfp);
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 			break;
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 		}
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@@ -160,7 +144,7 @@
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 						+ 8);
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 			if (regs->syscall_nr != -1) {
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-				printk(KERN_INFO "-- trap0 -- syscall_nr: %ld",
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+				printk("%s-- trap0 -- syscall_nr: %ld", loglvl,
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 					regs->syscall_nr);
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 				printk(KERN_CONT "  psp: %lx  elr: %lx\n",
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 					 pt_psp(regs), pt_elr(regs));
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@@ -168,7 +152,7 @@
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 			} else {
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 				/* really want to see more ... */
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 				kstack_depth_to_print += 6;
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-				printk(KERN_INFO "-- %s (0x%lx)  badva: %lx\n",
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+				printk("%s-- %s (0x%lx)  badva: %lx\n", loglvl,
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 					ex_name(pt_cause(regs)), pt_cause(regs),
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 					pt_badva(regs));
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 			}
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@@ -191,10 +175,10 @@
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 	}
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 }
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-void show_stack(struct task_struct *task, unsigned long *fp)
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+void show_stack(struct task_struct *task, unsigned long *fp, const char *loglvl)
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 {
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 	/* Saved link reg is one word above FP */
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-	do_show_stack(task, fp, 0);
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+	do_show_stack(task, fp, 0, loglvl);
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 }
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 int die(const char *str, struct pt_regs *regs, long err)
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@@ -220,7 +204,7 @@
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 	print_modules();
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 	show_regs(regs);
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-	do_show_stack(current, &regs->r30, pt_elr(regs));
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+	do_show_stack(current, &regs->r30, pt_elr(regs), KERN_EMERG);
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 	bust_spinlocks(0);
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 	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
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@@ -252,7 +236,7 @@
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 static void misaligned_instruction(struct pt_regs *regs)
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 {
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 	die_if_kernel("Misaligned Instruction", regs, 0);
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-	force_sig(SIGBUS, current);
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+	force_sig(SIGBUS);
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 }
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 /*
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@@ -263,19 +247,19 @@
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 static void misaligned_data_load(struct pt_regs *regs)
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 {
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 	die_if_kernel("Misaligned Data Load", regs, 0);
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-	force_sig(SIGBUS, current);
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+	force_sig(SIGBUS);
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 }
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 static void misaligned_data_store(struct pt_regs *regs)
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 {
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 	die_if_kernel("Misaligned Data Store", regs, 0);
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-	force_sig(SIGBUS, current);
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+	force_sig(SIGBUS);
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 }
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 static void illegal_instruction(struct pt_regs *regs)
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 {
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 	die_if_kernel("Illegal Instruction", regs, 0);
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-	force_sig(SIGILL, current);
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+	force_sig(SIGILL);
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 }
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 /*
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@@ -285,7 +269,7 @@
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 static void precise_bus_error(struct pt_regs *regs)
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 {
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 	die_if_kernel("Precise Bus Error", regs, 0);
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-	force_sig(SIGBUS, current);
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+	force_sig(SIGBUS);
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 }
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 /*
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@@ -420,7 +404,7 @@
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 			 * may want to use a different trap0 flavor.
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 			 */
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 			force_sig_fault(SIGTRAP, TRAP_BRKPT,
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-					(void __user *) pt_elr(regs), current);
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+					(void __user *) pt_elr(regs));
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 		} else {
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 #ifdef CONFIG_KGDB
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 			kgdb_handle_exception(pt_cause(regs), SIGTRAP,