linux-kernel - Re: [patch v11 - re-ordered 03/12] FIXME platform/mellanox: Remove redundant dev_err messages on device

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Date:   Fri, 26 Jan 2018 15:41:17 -0800
From:   Darren Hart <dvhart@...radead.org>
To:     Vadim Pasternak <vadimp@...lanox.com>
Cc:     "andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>,
        "jiri@...nulli.us" <jiri@...nulli.us>
Subject: Re: [patch v11 - re-ordered 03/12] FIXME platform/mellanox: Remove
 redundant dev_err messages on device_create

On Fri, Jan 26, 2018 at 04:59:32PM +0000, Vadim Pasternak wrote:
> 
> 
> > -----Original Message-----
> > From: Darren Hart [mailto:dvhart@...radead.org]
> > Sent: Thursday, January 25, 2018 11:47 PM
> > To: Vadim Pasternak <vadimp@...lanox.com>
> > Cc: andy.shevchenko@...il.com; gregkh@...uxfoundation.org; linux-
> > kernel@...r.kernel.org; platform-driver-x86@...r.kernel.org; jiri@...nulli.us
> > Subject: Re: [patch v11 - re-ordered 03/12] FIXME platform/mellanox: Remove
> > redundant dev_err messages on device_create
> > 
> > On Wed, Jan 24, 2018 at 08:33:37PM +0000, Vadim Pasternak wrote:
> > > The upper layer will manage and report errors returned by the create
> > > and destroy functions.
> > >
> > > FIXME: but it doesn't - we don't even check
> > 
> > I think we agreed to just drop this patch entirely, since this error is not checked
> > elsewhere? Keeping the dev_err messages?
> > 
> 
> Yes, we'll keep it.
> We just had conflict in patch order and I wanted to fix it, staying as much as
> possible aligned with the top of mellanox v10 branch.
> 
> However currently we still  have a problem in mellanox v11 after patch
> platform/mellanox: mlxreg-hotplug: Modify to use a regmap interface
> It dropped parameter device  in mlxreg_hotplug_device_create, which is
> Used inside the routine.
> 
> I'll send a separate patch to fix it from top of v11. In other case it'll be
> necessary to fix Modify to use a regmap interface  and re-send all from 
> 5-th patch in series.
> 
> Also we  should drop the patch:
> platform/x86: mlx-platform: Simplify IO access to regmap context
> It introduced the issue reported by sparse.
> 
> I am resending two last patches from review-dvhart-mellanox-v11 branch
> and also patch with fix for mlxreg_hotplug_device_create, as:
> 0010-platform-x86-mlx-platform-Extend-register-map-config.patch
> 0011-platform-mellanox-mlxreg-hotplug-Add-check-for-negat.patch
> 0012-platform-mellanox-mlxreg-hotplug-Fix-issue-of-commit.patch
> 
> Thank you very much for your help,

OK, please see review-dvhart-mellanox-v12 on infradead or github. I've verified
this passes a clean C=1 (sparse) build at each patch. I believe this is in a
state that can be moved to testing. Please confirm.

If you still want to move the dev_err messages out of the create function, we
can do that separately. Let's get this merged so we can move forward.

-- 
Darren Hart
VMware Open Source Technology Center