This is a note to let you know that I've just added the patch titled loop: deprecate autoloading callback loop_probe() to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: loop-deprecate-autoloading-callback-loop_probe.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 23881aec85f3219e8462e87c708815ee2cd82358 Mon Sep 17 00:00:00 2001 From: Mauricio Faria de Oliveira <mfo@xxxxxxxxxxxxx> Date: Thu, 20 Jul 2023 11:30:32 -0300 Subject: loop: deprecate autoloading callback loop_probe() From: Mauricio Faria de Oliveira <mfo@xxxxxxxxxxxxx> commit 23881aec85f3219e8462e87c708815ee2cd82358 upstream. The 'probe' callback in __register_blkdev() is only used under the CONFIG_BLOCK_LEGACY_AUTOLOAD deprecation guard. The loop_probe() function is only used for that callback, so guard it too, accordingly. See commit fbdee71bb5d8 ("block: deprecate autoloading based on dev_t"). Signed-off-by: Mauricio Faria de Oliveira <mfo@xxxxxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> Link: https://lore.kernel.org/r/20230720143033.841001-2-mfo@xxxxxxxxxxxxx Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> Cc: Sven Joachim <svenjoac@xxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/block/loop.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -2118,6 +2118,7 @@ static void loop_remove(struct loop_devi put_disk(lo->lo_disk); } +#ifdef CONFIG_BLOCK_LEGACY_AUTOLOAD static void loop_probe(dev_t dev) { int idx = MINOR(dev) >> part_shift; @@ -2126,6 +2127,9 @@ static void loop_probe(dev_t dev) return; loop_add(idx); } +#else +#define loop_probe NULL +#endif /* !CONFIG_BLOCK_LEGACY_AUTOLOAD */ static int loop_control_remove(int idx) { Patches currently in stable-queue which might be from mfo@xxxxxxxxxxxxx are queue-6.1/loop-do-not-enforce-max_loop-hard-limit-by-new-defau.patch queue-6.1/loop-deprecate-autoloading-callback-loop_probe.patch