The .remove has been converted to .remove_new in the 6.12 kernel. We have to change remove function return type from int to void to match the upstream changes. Link: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.12.y&id=5882bf98089f3a9ecbee5a57ae0aec6f54797855 Signed-off-by: Shiji Yang <yangshiji66@outlook.com>