On 05/12/2018 14:45, Arnd Bergmann wrote:
On Wed, Dec 5, 2018 at 2:42 PM Anton Ivanov
<anton.ivanov@xxxxxxxxxxxxxxxxxx> wrote:
On 30/11/2018 03:14, Luis Chamberlain wrote:
On Wed, Nov 28, 2018 at 11:36:18AM -0800, Brendan Higgins wrote:
Then for the UML stuff, I think if we *really* accept that UML will
always be a viable option we should probably consider now throwing these
things under drivers/platform/uml/. This follows the pattern of arch
specific drivers. Whether or not we end up with a complete userspace
UML platform drivers predate that and are under arch/um/drivers/
We should either keep to current convention or consider relocating the
existing ones - having things spread in different places around the tree
is not good in the long run (UML already has a few of those under the
x86 tree, let's not increase the number).
I don't mind the current location much, but if we move drivers, we should
move the into the appropriate subsystems based on what they do, rather
than having a new place with a mix of things.
E.g. the tty drivers should all be in drivers/tty/ and the network drivers in
drivers/net. To paraphrase what you said above: having tty drivers spread in
different places around the tree is not good in the long run. We have long
ago moved from organizing drivers by bus interface to organizing drivers
by class, uml and drivers/platform are just exceptions to this rule.
There are some issues with that because uml drivers have bits of what is
effectively host side of the hypervisor as a part of them. IMHO, having
that in driver/X is not very appropriate. So at least the *_user.c and
*_user.h bits have to go (or stay) somewhere else
Brgds,
--
Anton R. Ivanov
Cambridgegreys Limited. Registered in England. Company Number 10273661
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