Merge v6.2-rc6 into drm-next

Due to holidays we started -next with more -fixes in-flight than
usual, and people have been asking where they are. Backmerge to get
things better in sync.

Conflicts:
- Tiny conflict in drm_fbdev_generic.c between variable rename and
  missing error handling that got added.
- Conflict in drm_fb_helper.c between the added call to vgaswitcheroo
  in drm_fb_helper_single_fb_probe and a refactor patch that extracted
  lots of helpers and incidentally removed the dev local variable.
  Readd it to make things compile.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 5 insertions, 15 deletions

diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index a3ed9b34e2ab..7ce7bb164005 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -171,6 +171,7 @@ static int configure_kgdboc(void)
 	int err = -ENODEV;
 	char *cptr = config;
 	struct console *cons;
+	int cookie;
 
 	if (!strlen(config) || isspace(config[0])) {
 		err = 0;
@@ -189,20 +190,9 @@ static int configure_kgdboc(void)
 	if (kgdboc_register_kbd(&cptr))
 		goto do_register;
 
-	/*
-	 * tty_find_polling_driver() can call uart_set_options()
-	 * (via poll_init) to configure the uart. Take the console_list_lock
-	 * in order to synchronize against register_console(), which can also
-	 * configure the uart via uart_set_options(). This also allows safe
-	 * traversal of the console list.
-	 */
-	console_list_lock();
-
 	p = tty_find_polling_driver(cptr, &tty_line);
-	if (!p) {
-		console_list_unlock();
+	if (!p)
 		goto noconfig;
-	}
 
 	/*
 	 * Take console_lock to serialize device() callback with
@@ -211,7 +201,8 @@ static int configure_kgdboc(void)
 	 */
 	console_lock();
 
-	for_each_console(cons) {
+	cookie = console_srcu_read_lock();
+	for_each_console_srcu(cons) {
 		int idx;
 		if (cons->device && cons->device(cons, &idx) == p &&
 		    idx == tty_line) {
@@ -219,11 +210,10 @@ static int configure_kgdboc(void)
 			break;
 		}
 	}
+	console_srcu_read_unlock(cookie);
 
 	console_unlock();
 
-	console_list_unlock();
-
 	kgdb_tty_driver = p;
 	kgdb_tty_line = tty_line;