Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751852Ab2JHFMj (ORCPT ); Mon, 8 Oct 2012 01:12:39 -0400 Received: from mail1-relais-roc.national.inria.fr ([192.134.164.82]:6082 "EHLO mail1-relais-roc.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751512Ab2JHFMi (ORCPT ); Mon, 8 Oct 2012 01:12:38 -0400 X-IronPort-AV: E=Sophos;i="4.80,549,1344204000"; d="scan'208";a="176191747" Date: Mon, 8 Oct 2012 07:12:34 +0200 (CEST) From: Julia Lawall X-X-Sender: jll@localhost6.localdomain6 To: Ryan Mallon cc: Julia Lawall , Mauro Carvalho Chehab , kernel-janitors@vger.kernel.org, shubhrajyoti@ti.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 5/13] drivers/media/tuners: use macros for i2c_msg initialization In-Reply-To: <5071FCC3.5070200@gmail.com> Message-ID: References: <1349624323-15584-1-git-send-email-Julia.Lawall@lip6.fr> <1349624323-15584-7-git-send-email-Julia.Lawall@lip6.fr> <5071FCC3.5070200@gmail.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 23269 Lines: 594 As far as I can see, the comments on this are: &b[0] should be just b There should be a newline before the elements of a multi-element array Some one-element array buffers should just be variables sizeof(val) should be used I will redo the patches to include the first two, but not the others. I will send another set of patches for the third one. It seems like the conclusion is that the buffer should always be a variable if it can, but the message should always be an array for uniformity in the call to i2c_transfer. I believe that the fourth one is not correct. The variable in question is a pointer, so sizeof would give the wrong result. If it is preferred, I could not use sizeof for the other structure in the same code, but it seems just a little safer to use it. thanks, julia On Mon, 8 Oct 2012, Ryan Mallon wrote: > On 08/10/12 02:38, Julia Lawall wrote: >> From: Julia Lawall >> >> Introduce use of I2c_MSG_READ/WRITE/OP, for readability. >> >> A length expressed as an explicit constant is also re-expressed as the size >> of the buffer, when this is possible. >> >> A simplified version of the semantic patch that makes this change is as >> follows: (http://coccinelle.lip6.fr/) >> >> // >> @@ >> expression a,b,c; >> identifier x; >> @@ >> >> struct i2c_msg x = >> - {.addr = a, .buf = b, .len = c, .flags = I2C_M_RD} >> + I2C_MSG_READ(a,b,c) >> ; >> >> @@ >> expression a,b,c; >> identifier x; >> @@ >> >> struct i2c_msg x = >> - {.addr = a, .buf = b, .len = c, .flags = 0} >> + I2C_MSG_WRITE(a,b,c) >> ; >> >> @@ >> expression a,b,c,d; >> identifier x; >> @@ >> >> struct i2c_msg x = >> - {.addr = a, .buf = b, .len = c, .flags = d} >> + I2C_MSG_OP(a,b,c,d) >> ; >> // >> >> Signed-off-by: Julia Lawall >> >> --- >> drivers/media/tuners/fc0012.c | 8 +++----- >> drivers/media/tuners/fc0013.c | 8 +++----- >> drivers/media/tuners/mc44s803.c | 8 +++----- >> drivers/media/tuners/mt2060.c | 13 +++++-------- >> drivers/media/tuners/mt2063.c | 23 ++++++----------------- >> drivers/media/tuners/mt2131.c | 13 +++++-------- >> drivers/media/tuners/mt2266.c | 13 +++++-------- >> drivers/media/tuners/mxl5005s.c | 8 ++++---- >> drivers/media/tuners/tda827x.c | 29 +++++++++++------------------ >> drivers/media/tuners/tuner-i2c.h | 12 ++++-------- >> drivers/media/tuners/tuner-simple.c | 5 +---- >> drivers/media/tuners/xc4000.c | 9 +++------ >> drivers/media/tuners/xc5000.c | 9 +++------ >> 13 files changed, 56 insertions(+), 102 deletions(-) >> >> diff --git a/drivers/media/tuners/fc0012.c b/drivers/media/tuners/fc0012.c >> index 308135a..01dac7e 100644 >> --- a/drivers/media/tuners/fc0012.c >> +++ b/drivers/media/tuners/fc0012.c >> @@ -24,9 +24,7 @@ >> static int fc0012_writereg(struct fc0012_priv *priv, u8 reg, u8 val) >> { >> u8 buf[2] = {reg, val}; >> - struct i2c_msg msg = { >> - .addr = priv->addr, .flags = 0, .buf = buf, .len = 2 >> - }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->addr, buf, sizeof(buf)); >> >> if (i2c_transfer(priv->i2c, &msg, 1) != 1) { >> err("I2C write reg failed, reg: %02x, val: %02x", reg, val); >> @@ -38,8 +36,8 @@ static int fc0012_writereg(struct fc0012_priv *priv, u8 reg, u8 val) >> static int fc0012_readreg(struct fc0012_priv *priv, u8 reg, u8 *val) >> { >> struct i2c_msg msg[2] = { >> - { .addr = priv->addr, .flags = 0, .buf = ®, .len = 1 }, >> - { .addr = priv->addr, .flags = I2C_M_RD, .buf = val, .len = 1 }, >> + I2C_MSG_WRITE(priv->addr, ®, sizeof(reg)), >> + I2C_MSG_READ(priv->addr, val, 1), >> }; >> >> if (i2c_transfer(priv->i2c, msg, 2) != 2) { >> diff --git a/drivers/media/tuners/fc0013.c b/drivers/media/tuners/fc0013.c >> index bd8f0f1..174f0b0 100644 >> --- a/drivers/media/tuners/fc0013.c >> +++ b/drivers/media/tuners/fc0013.c >> @@ -27,9 +27,7 @@ >> static int fc0013_writereg(struct fc0013_priv *priv, u8 reg, u8 val) >> { >> u8 buf[2] = {reg, val}; >> - struct i2c_msg msg = { >> - .addr = priv->addr, .flags = 0, .buf = buf, .len = 2 >> - }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->addr, buf, sizeof(buf)); >> >> if (i2c_transfer(priv->i2c, &msg, 1) != 1) { >> err("I2C write reg failed, reg: %02x, val: %02x", reg, val); >> @@ -41,8 +39,8 @@ static int fc0013_writereg(struct fc0013_priv *priv, u8 reg, u8 val) >> static int fc0013_readreg(struct fc0013_priv *priv, u8 reg, u8 *val) >> { >> struct i2c_msg msg[2] = { >> - { .addr = priv->addr, .flags = 0, .buf = ®, .len = 1 }, >> - { .addr = priv->addr, .flags = I2C_M_RD, .buf = val, .len = 1 }, >> + I2C_MSG_WRITE(priv->addr, ®, sizeof(reg)), >> + I2C_MSG_READ(priv->addr, val, 1), >> }; >> >> if (i2c_transfer(priv->i2c, msg, 2) != 2) { >> diff --git a/drivers/media/tuners/mc44s803.c b/drivers/media/tuners/mc44s803.c >> index f1b7640..df47e03 100644 >> --- a/drivers/media/tuners/mc44s803.c >> +++ b/drivers/media/tuners/mc44s803.c >> @@ -37,9 +37,8 @@ >> static int mc44s803_writereg(struct mc44s803_priv *priv, u32 val) >> { >> u8 buf[3]; >> - struct i2c_msg msg = { >> - .addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = 3 >> - }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->cfg->i2c_address, buf, >> + sizeof(buf)); >> >> buf[0] = (val & 0xff0000) >> 16; >> buf[1] = (val & 0xff00) >> 8; >> @@ -59,8 +58,7 @@ static int mc44s803_readreg(struct mc44s803_priv *priv, u8 reg, u32 *val) >> u8 buf[3]; >> int ret; >> struct i2c_msg msg[] = { >> - { .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, >> - .buf = buf, .len = 3 }, >> + I2C_MSG_READ(priv->cfg->i2c_address, buf, sizeof(buf)), >> }; >> >> wval = MC44S803_REG_SM(MC44S803_REG_DATAREG, MC44S803_ADDR) | >> diff --git a/drivers/media/tuners/mt2060.c b/drivers/media/tuners/mt2060.c >> index 13381de..5fb2e77 100644 >> --- a/drivers/media/tuners/mt2060.c >> +++ b/drivers/media/tuners/mt2060.c >> @@ -42,8 +42,8 @@ MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); >> static int mt2060_readreg(struct mt2060_priv *priv, u8 reg, u8 *val) >> { >> struct i2c_msg msg[2] = { >> - { .addr = priv->cfg->i2c_address, .flags = 0, .buf = ®, .len = 1 }, >> - { .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, .buf = val, .len = 1 }, >> + I2C_MSG_WRITE(priv->cfg->i2c_address, ®, sizeof(reg)), >> + I2C_MSG_READ(priv->cfg->i2c_address, val, 1), > > Same here, should consistently use either sizeof(val) or 1 for single > length items. > >> }; >> >> if (i2c_transfer(priv->i2c, msg, 2) != 2) { >> @@ -57,9 +57,8 @@ static int mt2060_readreg(struct mt2060_priv *priv, u8 reg, u8 *val) >> static int mt2060_writereg(struct mt2060_priv *priv, u8 reg, u8 val) >> { >> u8 buf[2] = { reg, val }; >> - struct i2c_msg msg = { >> - .addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = 2 >> - }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->cfg->i2c_address, buf, >> + sizeof(buf)); >> >> if (i2c_transfer(priv->i2c, &msg, 1) != 1) { >> printk(KERN_WARNING "mt2060 I2C write failed\n"); >> @@ -71,9 +70,7 @@ static int mt2060_writereg(struct mt2060_priv *priv, u8 reg, u8 val) >> // Writes a set of consecutive registers >> static int mt2060_writeregs(struct mt2060_priv *priv,u8 *buf, u8 len) >> { >> - struct i2c_msg msg = { >> - .addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = len >> - }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->cfg->i2c_address, buf, len); >> if (i2c_transfer(priv->i2c, &msg, 1) != 1) { >> printk(KERN_WARNING "mt2060 I2C write failed (len=%i)\n",(int)len); >> return -EREMOTEIO; >> diff --git a/drivers/media/tuners/mt2063.c b/drivers/media/tuners/mt2063.c >> index 0ed9091..c29f6f6 100644 >> --- a/drivers/media/tuners/mt2063.c >> +++ b/drivers/media/tuners/mt2063.c >> @@ -250,12 +250,8 @@ static u32 mt2063_write(struct mt2063_state *state, u8 reg, u8 *data, u32 len) >> struct dvb_frontend *fe = state->frontend; >> int ret; >> u8 buf[60]; >> - struct i2c_msg msg = { >> - .addr = state->config->tuner_address, >> - .flags = 0, >> - .buf = buf, >> - .len = len + 1 >> - }; >> + struct i2c_msg msg = I2C_MSG_WRITE(state->config->tuner_address, buf, >> + len + 1); >> >> dprintk(2, "\n"); >> >> @@ -313,17 +309,10 @@ static u32 mt2063_read(struct mt2063_state *state, >> for (i = 0; i < cnt; i++) { >> u8 b0[] = { subAddress + i }; >> struct i2c_msg msg[] = { >> - { >> - .addr = state->config->tuner_address, >> - .flags = 0, >> - .buf = b0, >> - .len = 1 >> - }, { >> - .addr = state->config->tuner_address, >> - .flags = I2C_M_RD, >> - .buf = pData + i, >> - .len = 1 >> - } >> + I2C_MSG_WRITE(state->config->tuner_address, b0, >> + sizeof(b0)), >> + I2C_MSG_READ(state->config->tuner_address, >> + pData + i, 1) > > Same here. The b0 "array" is pretty ugly, could easily be fixed in a > follow up patch. > >> }; >> >> status = i2c_transfer(state->i2c, msg, 2); >> diff --git a/drivers/media/tuners/mt2131.c b/drivers/media/tuners/mt2131.c >> index f83b0c1..a154901 100644 >> --- a/drivers/media/tuners/mt2131.c >> +++ b/drivers/media/tuners/mt2131.c >> @@ -53,10 +53,8 @@ static u8 mt2131_config2[] = { >> static int mt2131_readreg(struct mt2131_priv *priv, u8 reg, u8 *val) >> { >> struct i2c_msg msg[2] = { >> - { .addr = priv->cfg->i2c_address, .flags = 0, >> - .buf = ®, .len = 1 }, >> - { .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, >> - .buf = val, .len = 1 }, >> + I2C_MSG_WRITE(priv->cfg->i2c_address, ®, sizeof(reg)), >> + I2C_MSG_READ(priv->cfg->i2c_address, val, 1), >> }; >> >> if (i2c_transfer(priv->i2c, msg, 2) != 2) { >> @@ -69,8 +67,8 @@ static int mt2131_readreg(struct mt2131_priv *priv, u8 reg, u8 *val) >> static int mt2131_writereg(struct mt2131_priv *priv, u8 reg, u8 val) >> { >> u8 buf[2] = { reg, val }; >> - struct i2c_msg msg = { .addr = priv->cfg->i2c_address, .flags = 0, >> - .buf = buf, .len = 2 }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->cfg->i2c_address, buf, >> + sizeof(buf)); >> >> if (i2c_transfer(priv->i2c, &msg, 1) != 1) { >> printk(KERN_WARNING "mt2131 I2C write failed\n"); >> @@ -81,8 +79,7 @@ static int mt2131_writereg(struct mt2131_priv *priv, u8 reg, u8 val) >> >> static int mt2131_writeregs(struct mt2131_priv *priv,u8 *buf, u8 len) >> { >> - struct i2c_msg msg = { .addr = priv->cfg->i2c_address, >> - .flags = 0, .buf = buf, .len = len }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->cfg->i2c_address, buf, len); >> >> if (i2c_transfer(priv->i2c, &msg, 1) != 1) { >> printk(KERN_WARNING "mt2131 I2C write failed (len=%i)\n", >> diff --git a/drivers/media/tuners/mt2266.c b/drivers/media/tuners/mt2266.c >> index bca4d75..a714728 100644 >> --- a/drivers/media/tuners/mt2266.c >> +++ b/drivers/media/tuners/mt2266.c >> @@ -57,8 +57,8 @@ MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); >> static int mt2266_readreg(struct mt2266_priv *priv, u8 reg, u8 *val) >> { >> struct i2c_msg msg[2] = { >> - { .addr = priv->cfg->i2c_address, .flags = 0, .buf = ®, .len = 1 }, >> - { .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, .buf = val, .len = 1 }, >> + I2C_MSG_WRITE(priv->cfg->i2c_address, ®, sizeof(reg)), >> + I2C_MSG_READ(priv->cfg->i2c_address, val, 1), > > And again. > >> }; >> if (i2c_transfer(priv->i2c, msg, 2) != 2) { >> printk(KERN_WARNING "MT2266 I2C read failed\n"); >> @@ -71,9 +71,8 @@ static int mt2266_readreg(struct mt2266_priv *priv, u8 reg, u8 *val) >> static int mt2266_writereg(struct mt2266_priv *priv, u8 reg, u8 val) >> { >> u8 buf[2] = { reg, val }; >> - struct i2c_msg msg = { >> - .addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = 2 >> - }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->cfg->i2c_address, buf, >> + sizeof(buf)); >> if (i2c_transfer(priv->i2c, &msg, 1) != 1) { >> printk(KERN_WARNING "MT2266 I2C write failed\n"); >> return -EREMOTEIO; >> @@ -84,9 +83,7 @@ static int mt2266_writereg(struct mt2266_priv *priv, u8 reg, u8 val) >> // Writes a set of consecutive registers >> static int mt2266_writeregs(struct mt2266_priv *priv,u8 *buf, u8 len) >> { >> - struct i2c_msg msg = { >> - .addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = len >> - }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->cfg->i2c_address, buf, len); >> if (i2c_transfer(priv->i2c, &msg, 1) != 1) { >> printk(KERN_WARNING "MT2266 I2C write failed (len=%i)\n",(int)len); >> return -EREMOTEIO; >> diff --git a/drivers/media/tuners/mxl5005s.c b/drivers/media/tuners/mxl5005s.c >> index b473b76..c913322 100644 >> --- a/drivers/media/tuners/mxl5005s.c >> +++ b/drivers/media/tuners/mxl5005s.c >> @@ -3848,8 +3848,8 @@ static int mxl5005s_reset(struct dvb_frontend *fe) >> int ret = 0; >> >> u8 buf[2] = { 0xff, 0x00 }; >> - struct i2c_msg msg = { .addr = state->config->i2c_address, .flags = 0, >> - .buf = buf, .len = 2 }; >> + struct i2c_msg msg = I2C_MSG_WRITE(state->config->i2c_address, buf, >> + sizeof(buf)); >> >> dprintk(2, "%s()\n", __func__); >> >> @@ -3874,8 +3874,8 @@ static int mxl5005s_writereg(struct dvb_frontend *fe, u8 reg, u8 val, int latch) >> { >> struct mxl5005s_state *state = fe->tuner_priv; >> u8 buf[3] = { reg, val, MXL5005S_LATCH_BYTE }; >> - struct i2c_msg msg = { .addr = state->config->i2c_address, .flags = 0, >> - .buf = buf, .len = 3 }; >> + struct i2c_msg msg = I2C_MSG_WRITE(state->config->i2c_address, buf, >> + sizeof(buf)); >> >> if (latch == 0) >> msg.len = 2; >> diff --git a/drivers/media/tuners/tda827x.c b/drivers/media/tuners/tda827x.c >> index a0d1762..15a4802 100644 >> --- a/drivers/media/tuners/tda827x.c >> +++ b/drivers/media/tuners/tda827x.c >> @@ -159,8 +159,7 @@ static int tda827xo_set_params(struct dvb_frontend *fe) >> u8 buf[14]; >> int rc; >> >> - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, >> - .buf = buf, .len = sizeof(buf) }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_addr, buf, sizeof(buf)); >> int i, tuner_freq, if_freq; >> u32 N; >> >> @@ -233,8 +232,7 @@ static int tda827xo_sleep(struct dvb_frontend *fe) >> { >> struct tda827x_priv *priv = fe->tuner_priv; >> static u8 buf[] = { 0x30, 0xd0 }; >> - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, >> - .buf = buf, .len = sizeof(buf) }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_addr, buf, sizeof(buf)); >> >> dprintk("%s:\n", __func__); >> tuner_transfer(fe, &msg, 1); >> @@ -255,7 +253,7 @@ static int tda827xo_set_analog_params(struct dvb_frontend *fe, >> u32 N; >> int i; >> struct tda827x_priv *priv = fe->tuner_priv; >> - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_addr, NULL, 0); >> unsigned int freq = params->frequency; >> >> tda827x_set_std(fe, params); >> @@ -335,8 +333,7 @@ static void tda827xo_agcf(struct dvb_frontend *fe) >> { >> struct tda827x_priv *priv = fe->tuner_priv; >> unsigned char data[] = { 0x80, 0x0c }; >> - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, >> - .buf = data, .len = 2}; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_addr, data, sizeof(data)); >> >> tuner_transfer(fe, &msg, 1); >> } >> @@ -445,8 +442,7 @@ static int tda827xa_sleep(struct dvb_frontend *fe) >> { >> struct tda827x_priv *priv = fe->tuner_priv; >> static u8 buf[] = { 0x30, 0x90 }; >> - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, >> - .buf = buf, .len = sizeof(buf) }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_addr, buf, sizeof(buf)); >> >> dprintk("%s:\n", __func__); >> >> @@ -465,7 +461,7 @@ static void tda827xa_lna_gain(struct dvb_frontend *fe, int high, >> unsigned char buf[] = {0x22, 0x01}; >> int arg; >> int gp_func; >> - struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) }; >> + struct i2c_msg msg = I2C_MSG_WRITE(0, buf, sizeof(buf)); >> >> if (NULL == priv->cfg) { >> dprintk("tda827x_config not defined, cannot set LNA gain!\n"); >> @@ -518,8 +514,7 @@ static int tda827xa_set_params(struct dvb_frontend *fe) >> struct tda827xa_data *frequency_map = tda827xa_dvbt; >> u8 buf[11]; >> >> - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, >> - .buf = buf, .len = sizeof(buf) }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_addr, buf, sizeof(buf)); >> >> int i, tuner_freq, if_freq, rc; >> u32 N; >> @@ -665,8 +660,8 @@ static int tda827xa_set_analog_params(struct dvb_frontend *fe, >> u32 N; >> int i; >> struct tda827x_priv *priv = fe->tuner_priv; >> - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, >> - .buf = tuner_reg, .len = sizeof(tuner_reg) }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_addr, tuner_reg, >> + sizeof(tuner_reg)); >> unsigned int freq = params->frequency; >> >> tda827x_set_std(fe, params); >> @@ -760,8 +755,7 @@ static void tda827xa_agcf(struct dvb_frontend *fe) >> { >> struct tda827x_priv *priv = fe->tuner_priv; >> unsigned char data[] = {0x80, 0x2c}; >> - struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0, >> - .buf = data, .len = 2}; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_addr, data, sizeof(data)); >> tuner_transfer(fe, &msg, 1); >> } >> >> @@ -855,8 +849,7 @@ static int tda827x_probe_version(struct dvb_frontend *fe) >> u8 data; >> int rc; >> struct tda827x_priv *priv = fe->tuner_priv; >> - struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD, >> - .buf = &data, .len = 1 }; >> + struct i2c_msg msg = I2C_MSG_READ(priv->i2c_addr, &data, sizeof(data)); >> >> rc = tuner_transfer(fe, &msg, 1); >> >> diff --git a/drivers/media/tuners/tuner-i2c.h b/drivers/media/tuners/tuner-i2c.h >> index 18f0056..a8a6da6 100644 >> --- a/drivers/media/tuners/tuner-i2c.h >> +++ b/drivers/media/tuners/tuner-i2c.h >> @@ -35,8 +35,7 @@ struct tuner_i2c_props { >> >> static inline int tuner_i2c_xfer_send(struct tuner_i2c_props *props, char *buf, int len) >> { >> - struct i2c_msg msg = { .addr = props->addr, .flags = 0, >> - .buf = buf, .len = len }; >> + struct i2c_msg msg = I2C_MSG_WRITE(props->addr, buf, len); >> int ret = i2c_transfer(props->adap, &msg, 1); >> >> return (ret == 1) ? len : ret; >> @@ -44,8 +43,7 @@ static inline int tuner_i2c_xfer_send(struct tuner_i2c_props *props, char *buf, >> >> static inline int tuner_i2c_xfer_recv(struct tuner_i2c_props *props, char *buf, int len) >> { >> - struct i2c_msg msg = { .addr = props->addr, .flags = I2C_M_RD, >> - .buf = buf, .len = len }; >> + struct i2c_msg msg = I2C_MSG_READ(props->addr, buf, len); >> int ret = i2c_transfer(props->adap, &msg, 1); >> >> return (ret == 1) ? len : ret; >> @@ -55,10 +53,8 @@ static inline int tuner_i2c_xfer_send_recv(struct tuner_i2c_props *props, >> char *obuf, int olen, >> char *ibuf, int ilen) >> { >> - struct i2c_msg msg[2] = { { .addr = props->addr, .flags = 0, >> - .buf = obuf, .len = olen }, >> - { .addr = props->addr, .flags = I2C_M_RD, >> - .buf = ibuf, .len = ilen } }; >> + struct i2c_msg msg[2] = { I2C_MSG_WRITE(props->addr, obuf, olen), >> + I2C_MSG_READ(props->addr, ibuf, ilen) }; > > Consistent coding style with other initialisers would be: > > struct i2c_msg msg[2] = { > I2C_MSG_WRITE(props->addr, obuf, olen), > I2C_MSG_READ(props->addr, ibuf, ilen), > }; > >> int ret = i2c_transfer(props->adap, msg, 2); >> >> return (ret == 2) ? ilen : ret; >> diff --git a/drivers/media/tuners/tuner-simple.c b/drivers/media/tuners/tuner-simple.c >> index 39e7e58..df5ba78 100644 >> --- a/drivers/media/tuners/tuner-simple.c >> +++ b/drivers/media/tuners/tuner-simple.c >> @@ -1065,10 +1065,7 @@ struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe, >> */ >> if (i2c_adap != NULL) { >> u8 b[1]; >> - struct i2c_msg msg = { >> - .addr = i2c_addr, .flags = I2C_M_RD, >> - .buf = b, .len = 1, >> - }; >> + struct i2c_msg msg = I2C_MSG_READ(i2c_addr, b, sizeof(b)); > > More silly "arrays" :-/. Can be fixed later. > >> >> if (fe->ops.i2c_gate_ctrl) >> fe->ops.i2c_gate_ctrl(fe, 1); >> diff --git a/drivers/media/tuners/xc4000.c b/drivers/media/tuners/xc4000.c >> index 4937712..7b65b6b 100644 >> --- a/drivers/media/tuners/xc4000.c >> +++ b/drivers/media/tuners/xc4000.c >> @@ -256,8 +256,7 @@ static void xc_debug_dump(struct xc4000_priv *priv); >> >> static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len) >> { >> - struct i2c_msg msg = { .addr = priv->i2c_props.addr, >> - .flags = 0, .buf = buf, .len = len }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_props.addr, buf, len); >> if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) { >> if (priv->ignore_i2c_write_errors == 0) { >> printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n", >> @@ -550,10 +549,8 @@ static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val) >> u8 buf[2] = { reg >> 8, reg & 0xff }; >> u8 bval[2] = { 0, 0 }; >> struct i2c_msg msg[2] = { >> - { .addr = priv->i2c_props.addr, >> - .flags = 0, .buf = &buf[0], .len = 2 }, >> - { .addr = priv->i2c_props.addr, >> - .flags = I2C_M_RD, .buf = &bval[0], .len = 2 }, >> + I2C_MSG_WRITE(priv->i2c_props.addr, &buf[0], sizeof(buf)), >> + I2C_MSG_READ(priv->i2c_props.addr, &bval[0], sizeof(bval)), > > &buf[0] == buf. Might as well fix this now, the way it is written is > just silly. > >> }; >> >> if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) { >> diff --git a/drivers/media/tuners/xc5000.c b/drivers/media/tuners/xc5000.c >> index dc93cf3..33b6b1e 100644 >> --- a/drivers/media/tuners/xc5000.c >> +++ b/drivers/media/tuners/xc5000.c >> @@ -253,8 +253,7 @@ static int xc5000_TunerReset(struct dvb_frontend *fe); >> >> static int xc_send_i2c_data(struct xc5000_priv *priv, u8 *buf, int len) >> { >> - struct i2c_msg msg = { .addr = priv->i2c_props.addr, >> - .flags = 0, .buf = buf, .len = len }; >> + struct i2c_msg msg = I2C_MSG_WRITE(priv->i2c_props.addr, buf, len); >> >> if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) { >> printk(KERN_ERR "xc5000: I2C write failed (len=%i)\n", len); >> @@ -285,10 +284,8 @@ static int xc5000_readreg(struct xc5000_priv *priv, u16 reg, u16 *val) >> u8 buf[2] = { reg >> 8, reg & 0xff }; >> u8 bval[2] = { 0, 0 }; >> struct i2c_msg msg[2] = { >> - { .addr = priv->i2c_props.addr, >> - .flags = 0, .buf = &buf[0], .len = 2 }, >> - { .addr = priv->i2c_props.addr, >> - .flags = I2C_M_RD, .buf = &bval[0], .len = 2 }, >> + I2C_MSG_WRITE(priv->i2c_props.addr, &buf[0], sizeof(buf)), >> + I2C_MSG_READ(priv->i2c_props.addr, &bval[0], sizeof(bval)), > > Same here, change &buf[0] to buf. > >> }; >> >> if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) { >> > > ~Ryan > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/