linux-kernel - Re: [PATCH v2] i2c: designware: call i2c_dw_read_clear_intrbits

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Date:   Thu, 22 Oct 2020 16:50:04 +0300
From:   Jarkko Nikula <jarkko.nikula@...ux.intel.com>
To:     Michael Wu <michael.wu@...ics.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Morgan Chang <morgan.chang@...ics.com>
Subject: Re: [PATCH v2] i2c: designware: call
 i2c_dw_read_clear_intrbits_slave() once

Hi

On 10/22/20 8:46 AM, Michael Wu wrote:
> @@ -217,10 +214,8 @@ static int i2c_dw_irq_handler_slave(struct dw_i2c_dev *dev)
>   		if (!i2c_slave_event(dev->slave, I2C_SLAVE_WRITE_RECEIVED,
>   				     &val))
>   			dev_vdbg(dev->dev, "Byte %X acked!", val);
> -	} else {
> +	} else
>   		i2c_slave_event(dev->slave, I2C_SLAVE_STOP, &val);
> -		stat = i2c_dw_read_clear_intrbits_slave(dev);
> -	}
>   
Minor nit.  Please don't remove braces here since the upper part of if 
statement has them.

 From Documentation/process/coding-style.rst:
"
This does not apply if only one branch of a conditional statement is a 
single
statement; in the latter case use braces in both branches:

.. code-block:: c

         if (condition) {
                 do_this();
                 do_that();
         } else {
                 otherwise();
         }
"

Otherwise looks good to me.

Jarkko