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Re: [PATCH v7 4/5] i2c: aspeed: added driver for Aspeed I2C

From Brendan Higgins <brendanhiggins@google.com>
Newsgroups linux.kernel
Subject Re: [PATCH v7 4/5] i2c: aspeed: added driver for Aspeed I2C
Date 2017-04-25 10:10 +0200
Message-ID <tA3HQ-24M-9@gated-at.bofh.it> (permalink)
References <tzQUi-21B-7@gated-at.bofh.it> <tzQUi-21B-15@gated-at.bofh.it> <tzYoN-6YB-1@gated-at.bofh.it>
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Adding Ryan to thread.

>> +static int __aspeed_i2c_init_clk(struct aspeed_i2c_bus *bus,
>> +                                struct platform_device *pdev)
>> +{
>
> Minor nit ... I'm really not fan of those underscores.
>
> We use __ functions in some cases in the kernel for low level
> helpers, usually when it's a low level variant of an existing
> function or an "unlocked" variant, but I don't think generalizing
> it to pretty much everything in the driver is worthwhile here.
>
> If you want to be explicit about locking, I would suggest you
> use a comment in front of the function explaining if it
> expects to be called with the lock held.
>
> We tend to only do that when *both* functions exist and one is
> implemented in term of the other.

Okay, I guess that makes sense. Sorry, I thought the "unlocked"
variant might refer to a function that you have to pay close attention
to the context in which it is called; with as many functions as I have
that require the lock to be held, I would like there to be some way to
say the function is "unsafe," but I guess if there is no convention to
do that, then there is no convention to do that.

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Thread

[PATCH v7 4/5] i2c: aspeed: added driver for Aspeed I2C Brendan Higgins <brendanhiggins@google.com> - 2017-04-24 20:30 +0200
  Re: [PATCH v7 4/5] i2c: aspeed: added driver for Aspeed I2C Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2017-04-25 04:30 +0200
    Re: [PATCH v7 4/5] i2c: aspeed: added driver for Aspeed I2C Brendan Higgins <brendanhiggins@google.com> - 2017-04-25 10:10 +0200
  Re: [PATCH v7 4/5] i2c: aspeed: added driver for Aspeed I2C Brendan Higgins <brendanhiggins@google.com> - 2017-05-09 01:40 +0200
  Re: [PATCH v7 4/5] i2c: aspeed: added driver for Aspeed I2C Wolfram Sang <wsa@the-dreams.de> - 2017-05-09 04:30 +0200
  Re: [PATCH v7 4/5] i2c: aspeed: added driver for Aspeed I2C Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2017-05-09 09:20 +0200

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