From: Doug Anderson <dianders@chromium.org>
Date: Fri, 22 Aug 2014 17:43:44 +0000 (-0700)
Subject: i2c: rk3x: Remove unlikely() annotations
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=29209338b22a61c9ba67badd5f36e96cda1892d8;p=linux-beck.git

i2c: rk3x: Remove unlikely() annotations

Having a transfer more than 32 bits is not all that unlikely.  Remove
the annotation.

The unlikely in the IRQ handler can't gain us much.  It's not in a
loop, so at most it would save 1 instruction per IRQ, which isn't
much.  In fact on the compiler I tested it produced the exact same
code.  Remove it too.

Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---

diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c
index 93cfc837200b..b41d97965669 100644
--- a/drivers/i2c/busses/i2c-rk3x.c
+++ b/drivers/i2c/busses/i2c-rk3x.c
@@ -208,7 +208,7 @@ static void rk3x_i2c_prepare_read(struct rk3x_i2c *i2c)
 	 * The hw can read up to 32 bytes at a time. If we need more than one
 	 * chunk, send an ACK after the last byte of the current chunk.
 	 */
-	if (unlikely(len > 32)) {
+	if (len > 32) {
 		len = 32;
 		con &= ~REG_CON_LASTACK;
 	} else {
@@ -403,7 +403,7 @@ static irqreturn_t rk3x_i2c_irq(int irqno, void *dev_id)
 	}
 
 	/* is there anything left to handle? */
-	if (unlikely((ipd & REG_INT_ALL) == 0))
+	if ((ipd & REG_INT_ALL) == 0)
 		goto out;
 
 	switch (i2c->state) {