Merge tag 'xtensa-20230327' of https://github.com/jcmvbkbc/linux-xtensa

Pull xtensa fixes from Max Filippov:

 - fix KASAN report in show_stack

 - drop linux-xtensa mailing list from the MAINTAINERS file

* tag 'xtensa-20230327' of https://github.com/jcmvbkbc/linux-xtensa:
  MAINTAINERS: xtensa: drop linux-xtensa@linux-xtensa.org mailing list
  xtensa: fix KASAN report for show_stack

MAINTAINERS

@@ -20645,7 +20645,6 @@ F:	sound/soc/codecs/tscs*.h
 TENSILICA XTENSA PORT (xtensa)
 M:	Chris Zankel <chris@zankel.net>
 M:	Max Filippov <jcmvbkbc@gmail.com>
-L:	linux-xtensa@linux-xtensa.org
 S:	Maintained
 T:	git https://github.com/jcmvbkbc/linux-xtensa.git
 F:	arch/xtensa/
@@ -23038,7 +23037,6 @@ F:	drivers/gpio/gpio-xra1403.c
 
 XTENSA XTFPGA PLATFORM SUPPORT
 M:	Max Filippov <jcmvbkbc@gmail.com>
-L:	linux-xtensa@linux-xtensa.org
 S:	Maintained
 F:	drivers/spi/spi-xtensa-xtfpga.c
 F:	sound/soc/xtensa/xtfpga-i2s.c

arch/xtensa/kernel/traps.c

@@ -539,7 +539,7 @@ static size_t kstack_depth_to_print = CONFIG_PRINT_STACK_DEPTH;
 
 void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
 {
-	size_t len;
+	size_t len, off = 0;
 
 	if (!sp)
 		sp = stack_pointer(task);
@@ -548,9 +548,17 @@ void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
 		  kstack_depth_to_print * STACK_DUMP_ENTRY_SIZE);
 
 	printk("%sStack:\n", loglvl);
-	print_hex_dump(loglvl, " ", DUMP_PREFIX_NONE,
-		       STACK_DUMP_LINE_SIZE, STACK_DUMP_ENTRY_SIZE,
-		       sp, len, false);
+	while (off < len) {
+		u8 line[STACK_DUMP_LINE_SIZE];
+		size_t line_len = len - off > STACK_DUMP_LINE_SIZE ?
+			STACK_DUMP_LINE_SIZE : len - off;
+
+		__memcpy(line, (u8 *)sp + off, line_len);
+		print_hex_dump(loglvl, " ", DUMP_PREFIX_NONE,
+			       STACK_DUMP_LINE_SIZE, STACK_DUMP_ENTRY_SIZE,
+			       line, line_len, false);
+		off += STACK_DUMP_LINE_SIZE;
+	}
 	show_trace(task, sp, loglvl);
 }