Re: [PATCH printk v4 7/8] printk: nbcon: Add emit function and callback function for atomic printing

[Petr Mladek]

On Fri 2023-09-08 20:56:07, John Ogness wrote:
> From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> 
> Implement an emit function for nbcon consoles to output printk
> messages. It utilizes the lockless printk_get_next_message() and
> console_prepend_dropped() functions to retrieve/build the output
> message. The emit function includes the required safety points to
> check for handover/takeover and calls a new write_atomic callback
> of the console driver to output the message. It also includes
> proper handling for updating the nbcon console sequence number.
> 
> A new nbcon_write_context struct is introduced. This is provided
> to the write_atomic callback and includes only the information
> necessary for performing atomic writes.
> 
> Co-developed-by: John Ogness <john.ogness@xxxxxxxxxxxxx>
> Signed-off-by: John Ogness <john.ogness@xxxxxxxxxxxxx>
> Signed-off-by: Thomas Gleixner (Intel) <tglx@xxxxxxxxxxxxx>

Reviewed-by: Petr Mladek <pmladek@xxxxxxxx>

Best Regards,
Petr