Hello, Greg. Thank you for the quick reply. > Also the patch does not apply to the linux-next tree at all, so I can't take it. The patch I sent was based on the master branch of “https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git/”; and its tag was v5.5-rc6. > Also the patch does not apply to the linux-next tree at all, so I can't take it. Please rebase and resend. I will send a new patch based on the latest master branch of “https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git”;. By the way, could you answer below questions for my sending patches in future? 1. Which repository and branch should be based when creating a new patch? 2. How do I inform you about a base on which I create a patch? -- Best regards, Kohada Tetsuhiro <Kohada.Tetsuhiro@xxxxxxxxxxxxxxxxxxxxxxxxxxx>