# Re: \[PATCH v12 1/2\] tty: hvc: pass DMA capable memory to put\_chars()

- From: Jiri Slaby \<jirislaby@kernel.org\>
- Date: 2021-11-10 09:50:45 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/11/1568003
- Thread: https://ratatoskr.run/linuxppc-dev/2021/10/1557031/t.md

```text
On 04. 11. 21, 14:06, Xianting Tian wrote:
>> OTOH, you need c[N_OUTBUF] in the console case (hvc_console_print), but
>> not whole hvc_struct. So cons_hvcs should be an array of structs
>> composed of only the lock and the buffer.
> It is ok for me.
>> =============
>>
>> And I would do it even simpler now. One c[N_OUTBUF] buffer for all consoles and a single lock.
>>
>> And "char c" in struct hvc_struct.
>>
>> No need for the complex logic in hvc_console_print.
>
> So you will implement this?

No, there is a slight difference between "I would" and "I will" :). I don't have anything to test this hvc change on…

thanks,
-- 
js
suse labs
```