From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shinya Kuribayashi Subject: [PATCH v2 16/22] i2c-designware: i2c_dw_read: Remove redundant target address checker Date: Fri, 06 Nov 2009 21:50:22 +0900 Message-ID: <4AF41B8E.6090702@necel.com> References: <4AF419B6.1000802@necel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4AF419B6.1000802-jaWZhaxaiAMAvxtiuMwx3w@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org, ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-i2c@vger.kernel.org I2c_dw_xfer_msg() also has the same target address inconsistency check, and furthermore it checks across all i2c_msg messages, while i2c_dw_read() walks through i2c_msg messages only with_ I2C_M_RD flag. That is, target address check in i2c_dw_read() is redundant and useless. Signed-off-by: Shinya Kuribayashi --- drivers/i2c/busses/i2c-designware.c | 5 ----- 1 files changed, 0 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware.c b/drivers/i2c/busses/i2c-designware.c index 5ba7e55..5a3bd74 100644 --- a/drivers/i2c/busses/i2c-designware.c +++ b/drivers/i2c/busses/i2c-designware.c @@ -419,7 +419,6 @@ static void i2c_dw_read(struct dw_i2c_dev *dev) { struct i2c_msg *msgs = dev->msgs; - u32 addr = msgs[dev->msg_read_idx].addr; int rx_valid; for (; dev->msg_read_idx < dev->msgs_num; dev->msg_read_idx++) { @@ -429,10 +428,6 @@ i2c_dw_read(struct dw_i2c_dev *dev) if (!(msgs[dev->msg_read_idx].flags & I2C_M_RD)) continue; - /* different i2c client, reprogram the i2c adapter */ - if (msgs[dev->msg_read_idx].addr != addr) - return; - if (!(dev->status & STATUS_READ_IN_PROGRESS)) { len = msgs[dev->msg_read_idx].len; buf = msgs[dev->msg_read_idx].buf; -- 1.6.5.2