On 3/29/2018 9:40 PM, Benjamin Herrenschmidt wrote:

On Thu, 2018-03-29 at 09:56 -0400, Sinan Kaya wrote:

quoted

On 3/28/2018 11:55 AM, David Miller wrote:

quoted

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 29 Mar 2018 02:13:16 +1100

quoted

Let's fix all archs, it's way easier than fixing all drivers. Half of
the archs are unused or dead anyway.

Agreed.

I pinged most of the maintainers yesterday.
Which arches do we care about these days?
I have not been paying attention any other architecture besides arm64.

Thanks for going through that exercise !

Once sparc, s390, microblaze and mips reply, I think we'll have a good
coverage, maybe riscv is to put in that lot too.

I posted the following two patches for supporting microblaze and unicore32. 

[PATCH v2 1/2] io: prevent compiler reordering on the default writeX() implementation
[PATCH v2 2/2] io: prevent compiler reordering on the default readX() implementation

The rest of the arches except mips and alpha seem OK.
I sent a question email on Friday to mips and alpha mailing lists. I'll follow up with
an actual patch today.


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.