Hi Sasha,

As the commit message notice, this patch should not be applied to kernel v6.4 or before. I would like you to exclude this from your queue for the following versions:

* Patch "firewire: core: fix overlooked update of subsystem ABI version" has been added to the 5.4-stable tree * Patch "firewire: core: fix overlooked update of subsystem ABI version" has been added to the 5.10-stable tree * Patch "firewire: core: fix overlooked update of subsystem ABI version" has been added to the 5.15-stable tree * Patch "firewire: core: fix overlooked update of subsystem ABI version" has been added to the 6.1-stable tree

Thankss

Takashi Sakamoto

On Thu, Sep 25, 2025 at 07:33:23AM -0400, Sasha Levin wrote:

This is a note to let you know that I've just added the patch titled

firewire: core: fix overlooked update of subsystem ABI version

to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: firewire-core-fix-overlooked-update-of-subsystem-abi.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@vger.kernel.org know about it.

commit bbb4ab1d7b1ad7fff7a85aa9144d0edc5a70bacc Author: Takashi Sakamoto o-takashi@sakamocchi.jp Date: Sat Sep 20 11:51:48 2025 +0900

firewire: core: fix overlooked update of subsystem ABI version

[ Upstream commit 853a57ba263adfecf4430b936d6862bc475b4bb5 ] In kernel v6.5, several functions were added to the cdev layer. This required updating the default version of subsystem ABI up to 6, but this requirement was overlooked. This commit updates the version accordingly. Fixes: 6add87e9764d ("firewire: cdev: add new version of ABI to notify time stamp at request/response subaction of transaction#") Link: https://lore.kernel.org/r/20250920025148.163402-1-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp Signed-off-by: Sasha Levin sashal@kernel.org

diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c index 958aa4662ccb0..5cb0059f57e6b 100644 --- a/drivers/firewire/core-cdev.c +++ b/drivers/firewire/core-cdev.c @@ -39,7 +39,7 @@ /*

• ABI version history is documented in linux/firewire-cdev.h.

*/ -#define FW_CDEV_KERNEL_VERSION 5 +#define FW_CDEV_KERNEL_VERSION 6 #define FW_CDEV_VERSION_EVENT_REQUEST2 4 #define FW_CDEV_VERSION_ALLOCATE_REGION_END 4 #define FW_CDEV_VERSION_AUTO_FLUSH_ISO_OVERFLOW 5