From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergei Shtylyov Date: Sun, 14 Sep 2014 20:14:14 +0000 Subject: [PATCH v2 1/3] i2c-rcar: simplify check for last message Message-Id: <1757193.42K2JNstnx@wasted.cogentembedded.com> List-Id: References: <2245366.q99HVYG3pL@wasted.cogentembedded.com> In-Reply-To: <2245366.q99HVYG3pL@wasted.cogentembedded.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: wsa@the-dreams.de, linux-i2c@vger.kernel.org Cc: linux-sh@vger.kernel.org rcar_i2c_master_xfer() needlessly compares the message pointers (using indirect addressing) in order to detect the last I2C message, while it's enough to only compare the message indexes. Signed-off-by: Sergei Shtylyov --- Changes in version 2: - refreshed patch. drivers/i2c/busses/i2c-rcar.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux/drivers/i2c/busses/i2c-rcar.c =================================--- linux.orig/drivers/i2c/busses/i2c-rcar.c +++ linux/drivers/i2c/busses/i2c-rcar.c @@ -453,7 +453,7 @@ static int rcar_i2c_master_xfer(struct i priv->msg = &msgs[i]; priv->pos = 0; priv->flags = 0; - if (priv->msg = &msgs[num - 1]) + if (i = num - 1) rcar_i2c_flags_set(priv, ID_LAST_MSG); ret = rcar_i2c_prepare_msg(priv);