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

[Benjamin Herrenschmidt]

On Mon, 2017-04-24 at 11:18 -0700, Brendan Higgins wrote:
> +static int __aspeed_i2c_init_clk(struct aspeed_i2c_bus *bus,
> +ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ 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.

Cheers,
Ben.