Re: [PATCH 1/6] tty: implement write_iter

From: Jiri Slaby
Date: Fri Jan 22 2021 - 02:34:48 EST


On 21. 01. 21, 19:42, Linus Torvalds wrote:
On Thu, Jan 21, 2021 at 9:57 AM Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:

Incremental patches please as these are already in my public branches
and I would have to revert them and add new ones but that's messy, so
fixes on top is fine.

Ok. And since I think you put that first tty_write conversion patch in
a different branch from the tty_read one, I did the fixup patches for
the two as separate patches, even though they really just do the exact
same thing.

So here's three patches: the two fixups for the hung_up_tty case, and
the EOVERFLOW error case that Jiri also noted. I've also updated the
'tty-splice' branch if you prefer them that way.

And I *should* say that I still haven't tested _any_ of the HDLC
changes. I have no idea how to do that, and if somebody can point to a
test-case (or better yet, actually has a real life situation where
they use it and can test this all) it would be great.

Jiri, any other issues, or any comment of yours I missed? I didn't do
the min() thing, I find the explicit conditional more legible myself,
but won't complain if somebody else then disagrees and wants to clean
it up.

I cannot find anything else.

All three:
Reviewed-by: Jiri Slaby <jirislaby@xxxxxxxxxx>

thanks,
--
js