Re: Re: [PATCH] i2c: xlp9xx: Fix case where SSIF read transaction completes early

[George Cherian]

Hi Wolfran,

Thanks for the review.

I will update the patch with a small comment section above
len --;
so that there is no confusion.

On 08/01/2018 02:35 AM, Wolfram Sang wrote:

--- a/drivers/i2c/busses/i2c-xlp9xx.c
+++ b/drivers/i2c/busses/i2c-xlp9xx.c
@@ -191,28 +191,30 @@ static void xlp9xx_i2c_drain_rx_fifo(struct 
xlp9xx_i2c_dev *priv)
        if (priv->len_recv) {
                /* read length byte */
                rlen = xlp9xx_read_i2c_reg(priv, XLP9XX_I2C_MRXFIFO);
+               len--;

I don't know the HW and assume the above line is correct because of
merging two interrupts into one. However, the line looks a bit stray,
and I wonder if we shouldn't add a comment somewhere explaining the
situation similar to the second paragraph of the commit message?

Regards,
-George