Re: [PATCH v2 0/7] rust_binder : Implement dynamic debug logging mask

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Fri, Jul 10, 2026 at 02:32:51PM +0000, Jahnavi MN via B4 Relay wrote:
> When a user-space application sends malformed data or makes a
> lifecycle mistake, the driver rejects it with a generic error code
> (like -EINVAL). Without internal logs, the driver acts as a
> "black box," forcing developers to guess which check failed.
> 
> In the legacy C Binder driver, this issue is solved using a dynamic
> debug_mask module parameter that toggles verbose logs for specific
> subsystems. This series brings the same critical capability to the
> Rust Binder driver to provide developers with clear, real-time
> feedback.
> 
> Instead of rebuilds, reboots, or guessing:
> - Developers can enable logs instantly on a running device by writing to 
>   `/sys/module/rust_binder/parameters/debug_mask`.
> - It prints the exact reason for failures (such as alignment errors, 
>   mismatched call stacks, or invalid handle references) directly into 
>   `dmesg`, reducing debugging time from hours to seconds.
> - It protects system logs by keeping logging off by default and only 
>   enabling it when developers are actively troubleshooting.
> 
> Based on top of:
> https://lore.kernel.org/rust-for-linux/20260707-upgrade-poll-v6-0-4b8fae7bf1d9@google.com/
> 
> Signed-off-by: Jahnavi MN <jahnavimn@google.com>

Patches 5 and 7 did not apply to my tree, can you rebase against the
char-misc-testing branch and send just those?  Other ones are now all
queued up, nice work!

thanks,

greg k-h