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From: Wolfram Sang <wsa@the-dreams.de>
To: Jean Delvare <jdelvare@suse.de>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
	linux-i2c@vger.kernel.org,
	Benjamin Tissoires <benjamin.tissoires@redhat.com>,
	Phil Reid <preid@electromag.com.au>,
	Robert Richter <rrichter@marvell.com>,
	George Cherian <gcherian@marvell.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] i2c: convert SMBus alert setup function to return an ERRPTR
Date: Sat, 15 Feb 2020 07:50:18 +0100	[thread overview]
Message-ID: <20200215065018.GA1005@ninjato> (raw)
In-Reply-To: <20200215072020.75b1b772@endymion>

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On Sat, Feb 15, 2020 at 07:20:20AM +0100, Jean Delvare wrote:
> Hi Wolfram,
> 
> On Mon, 10 Feb 2020 18:29:25 +0100, Wolfram Sang wrote:
> > Only few drivers use this call, so drivers and I2C core are converted at
> > once with this patch. By simply using i2c_new_client_device() instead of
> > i2c_new_device(), we easily can return an ERRPTR for this function as
> > well. To make out of tree users aware that something changed, the
> > function is renamed to i2c_install_smbus_alert().
> 
> I wouldn't bother renaming the function. Chances that there actually
> are out-of-tree users of this function are pretty small, and if that is
> the case, they can adjust their code easily in a way that is still
> compatible with old kernels.

Agreed, it is easy. But they need to *know* that they need to adjust.
Build error makes it obvious. Otherwise, the code will compile and
silently not work anymore, I am afraid.


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  reply	other threads:[~2020-02-15  6:50 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-10 17:29 [PATCH 0/3] i2c: updates to SMBus alert setup Wolfram Sang
2020-02-10 17:29 ` [PATCH 1/3] i2c: convert SMBus alert setup function to return an ERRPTR Wolfram Sang
2020-02-15  6:20   ` Jean Delvare
2020-02-15  6:50     ` Wolfram Sang [this message]
2020-02-15  8:11       ` Jean Delvare
2020-02-17  7:58   ` Robert Richter
2020-02-17  8:17     ` Wolfram Sang
2020-02-17  9:14       ` Luca Ceresoli
2020-02-17 10:00         ` Robert Richter
2020-02-17 13:29           ` Wolfram Sang
2020-02-10 17:29 ` [PATCH 2/3] i2c: rename of_i2c_setup_smbus_alert() to keep in sync Wolfram Sang
2020-02-10 17:29 ` [PATCH 3/3] i2c: smbus: remove outdated references to irq level triggers Wolfram Sang

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