This checkpatch warning makes sense here: "ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP" We don't have a userspace interface yet, but we probably will get one. So, let's convert these error codes now, before it will be forgotten in the future, and they could slip through to applications. This is based on 6.16-rc3 plus "[PATCH] i3c: don't fail if GETHDRCAP is unsupported" which I sent earlier. During its development, the issue became apparent. Automatically generated and build tested only. Looking forward to comments. Wolfram Sang (3): i3c: core: switch to use SUSV4 error codes i3c: dw: switch to use SUSV4 error codes i3c: cdns: switch to use SUSV4 error codes drivers/i3c/master.c | 20 ++++++++++---------- drivers/i3c/master/dw-i3c-master.c | 8 ++++---- drivers/i3c/master/i3c-master-cdns.c | 12 ++++++------ 3 files changed, 20 insertions(+), 20 deletions(-) -- 2.47.2