2016-10-11 18:20:58

by Carlos Palminha

[permalink] [raw]
Subject: [PATCH 0/5] i2c: i2c-piix4: set of coding style fixes

This patchset fixes several coding style issues.

Carlos Palminha (5):
i2c: i2c-piix4: coding style fix - '*' adjacent to data name
i2c: i2c-piix4: coding style fix - assignment in if condition
i2c: i2c-piix4: coding style fix - long comments blocks
i2c: i2c-piix4: coding style fix - spaces with open parenthesis
i2c: i2c-piix4: coding style fix - quoted string split across lines

drivers/i2c/busses/i2c-piix4.c | 144 +++++++++++++++++++++++------------------
1 file changed, 82 insertions(+), 62 deletions(-)

--
2.9.3


2016-10-11 17:26:47

by Carlos Palminha

[permalink] [raw]
Subject: [PATCH 3/5] i2c: i2c-piix4: coding style fix - long comments blocks

Signed-off-by: Carlos Palminha <[email protected]>
---
drivers/i2c/busses/i2c-piix4.c | 94 ++++++++++++++++++++++++------------------
1 file changed, 54 insertions(+), 40 deletions(-)

diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 5d6f637..85b1052 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -1,32 +1,32 @@
/*
- Copyright (c) 1998 - 2002 Frodo Looijaard <[email protected]> and
- Philip Edelbrock <[email protected]>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-*/
+ * Copyright (c) 1998 - 2002 Frodo Looijaard <[email protected]> and
+ * Philip Edelbrock <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */

/*
- Supports:
- Intel PIIX4, 440MX
- Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100
- ATI IXP200, IXP300, IXP400, SB600, SB700/SP5100, SB800
- AMD Hudson-2, ML, CZ
- SMSC Victory66
-
- Note: we assume there can only be one device, with one or more
- SMBus interfaces.
- The device can register multiple i2c_adapters (up to PIIX4_MAX_ADAPTERS).
- For devices supporting multiple ports the i2c_adapter should provide
- an i2c_algorithm to access them.
-*/
+ * Supports:
+ * Intel PIIX4, 440MX
+ * Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100
+ * ATI IXP200, IXP300, IXP400, SB600, SB700/SP5100, SB800
+ * AMD Hudson-2, ML, CZ
+ * SMSC Victory66
+ *
+ * Note: we assume there can only be one device, with one or more
+ * SMBus interfaces.
+ * The device can register multiple i2c_adapters (up to PIIX4_MAX_ADAPTERS).
+ * For devices supporting multiple ports the i2c_adapter should provide
+ * an i2c_algorithm to access them.
+ */

#include <linux/module.h>
#include <linux/moduleparam.h>
@@ -97,14 +97,18 @@

/* insmod parameters */

-/* If force is set to anything different from 0, we forcibly enable the
- PIIX4. DANGEROUS! */
+/*
+ * If force is set to anything different from 0, we forcibly enable the
+ * PIIX4. DANGEROUS!
+ */
static int force;
module_param (force, int, 0);
MODULE_PARM_DESC(force, "Forcibly enable the PIIX4. DANGEROUS!");

-/* If force_addr is set to anything different from 0, we forcibly enable
- the PIIX4 at the given address. VERY DANGEROUS! */
+/*
+ * If force_addr is set to anything different from 0, we forcibly enable
+ * the PIIX4 at the given address. VERY DANGEROUS!
+ */
static int force_addr;
module_param (force_addr, int, 0);
MODULE_PARM_DESC(force_addr,
@@ -132,8 +136,10 @@ static const struct dmi_system_id piix4_dmi_blacklist[] = {
{ }
};

-/* The IBM entry is in a separate table because we only check it
- on Intel-based systems */
+/*
+ * The IBM entry is in a separate table because we only check it
+ * on Intel-based systems
+ */
static const struct dmi_system_id piix4_dmi_ibm[] = {
{
.ident = "IBM",
@@ -172,8 +178,10 @@ static int piix4_setup(struct pci_dev *PIIX4_dev,
(PIIX4_dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5))
srvrworks_csb5_delay = 1;

- /* On some motherboards, it was reported that accessing the SMBus
- caused severe hardware problems */
+ /*
+ * On some motherboards, it was reported that accessing the SMBus
+ * caused severe hardware problems
+ */
if (dmi_check_system(piix4_dmi_blacklist)) {
dev_err(&PIIX4_dev->dev,
"Accessing the SMBus on this system is unsafe!\n");
@@ -215,8 +223,10 @@ static int piix4_setup(struct pci_dev *PIIX4_dev,

pci_read_config_byte(PIIX4_dev, SMBHSTCFG, &temp);

- /* If force_addr is set, we program the new address here. Just to make
- sure, we disable the PIIX4 first. */
+ /*
+ * If force_addr is set, we program the new address here. Just to make
+ * sure, we disable the PIIX4 first.
+ */
if (force_addr) {
pci_write_config_byte(PIIX4_dev, SMBHSTCFG, temp & 0xfe);
pci_write_config_word(PIIX4_dev, SMBBA, piix4_smba);
@@ -369,8 +379,10 @@ static int piix4_setup_aux(struct pci_dev *PIIX4_dev,
const struct pci_device_id *id,
unsigned short base_reg_addr)
{
- /* Set up auxiliary SMBus controllers found on some
- * AMD chipsets e.g. SP5100 (SB700 derivative) */
+ /*
+ * Set up auxiliary SMBus controllers found on some
+ * AMD chipsets e.g. SP5100 (SB700 derivative)
+ */

unsigned short piix4_smba;

@@ -804,8 +816,10 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
}

if (retval > 0) {
- /* Try to add the aux adapter if it exists,
- * piix4_add_adapter will clean up if this fails */
+ /*
+ * Try to add the aux adapter if it exists,
+ * piix4_add_adapter will clean up if this fails
+ */
piix4_add_adapter(dev, retval, false, 0,
is_sb800 ? piix4_aux_port_name_sb800 : "",
&piix4_aux_adapter);
--
2.9.3

2016-10-11 17:27:18

by Carlos Palminha

[permalink] [raw]
Subject: [PATCH 4/5] i2c: i2c-piix4: coding style fix - spaces with open parenthesis

Signed-off-by: Carlos Palminha <[email protected]>
---
drivers/i2c/busses/i2c-piix4.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 85b1052..5cc460a 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -102,7 +102,7 @@
* PIIX4. DANGEROUS!
*/
static int force;
-module_param (force, int, 0);
+module_param(force, int, 0);
MODULE_PARM_DESC(force, "Forcibly enable the PIIX4. DANGEROUS!");

/*
@@ -110,7 +110,7 @@ MODULE_PARM_DESC(force, "Forcibly enable the PIIX4. DANGEROUS!");
* the PIIX4 at the given address. VERY DANGEROUS!
*/
static int force_addr;
-module_param (force_addr, int, 0);
+module_param(force_addr, int, 0);
MODULE_PARM_DESC(force_addr,
"Forcibly enable the PIIX4 at the given address. "
"EXTREMELY DANGEROUS!");
@@ -204,7 +204,7 @@ static int piix4_setup(struct pci_dev *PIIX4_dev,
} else {
pci_read_config_word(PIIX4_dev, SMBBA, &piix4_smba);
piix4_smba &= 0xfff0;
- if(piix4_smba == 0) {
+ if (piix4_smba == 0) {
dev_err(&PIIX4_dev->dev, "SMBus base address "
"uninitialized - upgrade BIOS or use "
"force_addr=0xaddr\n");
@@ -664,7 +664,7 @@ static const struct pci_device_id piix4_ids[] = {
{ 0, }
};

-MODULE_DEVICE_TABLE (pci, piix4_ids);
+MODULE_DEVICE_TABLE(pci, piix4_ids);

static struct i2c_adapter *piix4_main_adapters[PIIX4_MAX_ADAPTERS];
static struct i2c_adapter *piix4_aux_adapter;
--
2.9.3

2016-10-11 17:44:15

by Carlos Palminha

[permalink] [raw]
Subject: [PATCH 5/5] i2c: i2c-piix4: coding style fix - quoted string split across lines

Signed-off-by: Carlos Palminha <[email protected]>
---
drivers/i2c/busses/i2c-piix4.c | 29 ++++++++++++++++-------------
1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 5cc460a..235a406 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -260,7 +260,8 @@ static int piix4_setup(struct pci_dev *PIIX4_dev,
else if ((temp & 0x0E) == 0)
dev_dbg(&PIIX4_dev->dev, "Using SMI# for SMBus\n");
else
- dev_err(&PIIX4_dev->dev, "Illegal Interrupt configuration "
+ dev_err(&PIIX4_dev->dev,
+ "Illegal Interrupt configuration "
"(or code out of date)!\n");

pci_read_config_byte(PIIX4_dev, SMBREV, &temp);
@@ -280,8 +281,8 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,

/* SB800 and later SMBus does not support forcing address */
if (force || force_addr) {
- dev_err(&PIIX4_dev->dev, "SMBus does not support "
- "forcing address!\n");
+ dev_err(&PIIX4_dev->dev,
+ "SMBus does not support forcing address!\n");
return -EINVAL;
}

@@ -338,8 +339,9 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,

/* Request the SMBus I2C bus config region */
if (!request_region(piix4_smba + i2ccfg_offset, 1, "i2ccfg")) {
- dev_err(&PIIX4_dev->dev, "SMBus I2C bus config region "
- "0x%x already in use!\n", piix4_smba + i2ccfg_offset);
+ dev_err(&PIIX4_dev->dev,
+ "SMBus I2C bus config region 0x%x already in use!\n",
+ piix4_smba + i2ccfg_offset);
release_region(piix4_smba, SMBIOSIZE);
return -EBUSY;
}
@@ -405,8 +407,9 @@ static int piix4_setup_aux(struct pci_dev *PIIX4_dev,
return -ENODEV;

if (!request_region(piix4_smba, SMBIOSIZE, piix4_driver.name)) {
- dev_err(&PIIX4_dev->dev, "Auxiliary SMBus region 0x%x "
- "already in use!\n", piix4_smba);
+ dev_err(&PIIX4_dev->dev,
+ "Auxiliary SMBus region 0x%x already in use!\n",
+ piix4_smba);
return -EBUSY;
}

@@ -433,8 +436,8 @@ static int piix4_transaction(struct i2c_adapter *piix4_adapter)
/* Make sure the SMBus host is ready to start transmitting */
temp = inb_p(SMBHSTSTS);
if (temp != 0x00) {
- dev_dbg(&piix4_adapter->dev, "SMBus busy (%02x). "
- "Resetting...\n", temp);
+ dev_dbg(&piix4_adapter->dev,
+ "SMBus busy (%02x). Resetting...\n", temp);
outb_p(temp, SMBHSTSTS);
temp = inb_p(SMBHSTSTS);
if (temp != 0x00) {
@@ -486,8 +489,8 @@ static int piix4_transaction(struct i2c_adapter *piix4_adapter)

temp = inb_p(SMBHSTSTS);
if (temp != 0x00) {
- dev_err(&piix4_adapter->dev, "Failed reset at end of "
- "transaction (%02x)\n", temp);
+ dev_err(&piix4_adapter->dev,
+ "Failed reset at end of transaction (%02x)\n", temp);
}
dev_dbg(&piix4_adapter->dev, "Transaction (post): CNT=%02x, CMD=%02x, "
"ADD=%02x, DAT0=%02x, DAT1=%02x\n", inb_p(SMBHSTCNT),
@@ -870,7 +873,7 @@ static struct pci_driver piix4_driver = {

module_pci_driver(piix4_driver);

-MODULE_AUTHOR("Frodo Looijaard <[email protected]> and "
- "Philip Edelbrock <[email protected]>");
+MODULE_AUTHOR("Frodo Looijaard <[email protected]>");
+MODULE_AUTHOR("Philip Edelbrock <[email protected]>");
MODULE_DESCRIPTION("PIIX4 SMBus driver");
MODULE_LICENSE("GPL");
--
2.9.3

2016-10-11 17:49:49

by Carlos Palminha

[permalink] [raw]
Subject: [PATCH 1/5] i2c: i2c-piix4: coding style fix - '*' adjacent to data name

Signed-off-by: Carlos Palminha <[email protected]>
---
drivers/i2c/busses/i2c-piix4.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index c2268cd..6b55a8e 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -482,9 +482,9 @@ static int piix4_transaction(struct i2c_adapter *piix4_adapter)
}

/* Return negative errno on error. */
-static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
+static s32 piix4_access(struct i2c_adapter *adap, u16 addr,
unsigned short flags, char read_write,
- u8 command, int size, union i2c_smbus_data * data)
+ u8 command, int size, union i2c_smbus_data *data)
{
struct i2c_piix4_adapdata *adapdata = i2c_get_adapdata(adap);
unsigned short piix4_smba = adapdata->smba;
--
2.9.3

2016-10-11 18:20:59

by Carlos Palminha

[permalink] [raw]
Subject: [PATCH 2/5] i2c: i2c-piix4: coding style fix - assignment in if condition

Signed-off-by: Carlos Palminha <[email protected]>
---
drivers/i2c/busses/i2c-piix4.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 6b55a8e..5d6f637 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -419,11 +419,13 @@ static int piix4_transaction(struct i2c_adapter *piix4_adapter)
inb_p(SMBHSTDAT1));

/* Make sure the SMBus host is ready to start transmitting */
- if ((temp = inb_p(SMBHSTSTS)) != 0x00) {
+ temp = inb_p(SMBHSTSTS);
+ if (temp != 0x00) {
dev_dbg(&piix4_adapter->dev, "SMBus busy (%02x). "
"Resetting...\n", temp);
outb_p(temp, SMBHSTSTS);
- if ((temp = inb_p(SMBHSTSTS)) != 0x00) {
+ temp = inb_p(SMBHSTSTS);
+ if (temp != 0x00) {
dev_err(&piix4_adapter->dev, "Failed! (%02x)\n", temp);
return -EBUSY;
} else {
@@ -470,7 +472,8 @@ static int piix4_transaction(struct i2c_adapter *piix4_adapter)
if (inb_p(SMBHSTSTS) != 0x00)
outb_p(inb(SMBHSTSTS), SMBHSTSTS);

- if ((temp = inb_p(SMBHSTSTS)) != 0x00) {
+ temp = inb_p(SMBHSTSTS);
+ if (temp != 0x00) {
dev_err(&piix4_adapter->dev, "Failed reset at end of "
"transaction (%02x)\n", temp);
}
--
2.9.3

2016-10-12 02:04:13

by Joe Perches

[permalink] [raw]
Subject: Re: [PATCH 5/5] i2c: i2c-piix4: coding style fix - quoted string split across lines

On Tue, 2016-10-11 at 18:34 +0100, Carlos Palminha wrote:
[]
> diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
[]
> @@ -260,7 +260,8 @@ static int piix4_setup(struct pci_dev *PIIX4_dev,
> else if ((temp & 0x0E) == 0)
> dev_dbg(&PIIX4_dev->dev, "Using SMI# for SMBus\n");
> else
> - dev_err(&PIIX4_dev->dev, "Illegal Interrupt configuration "
> + dev_err(&PIIX4_dev->dev,
> + "Illegal Interrupt configuration "
> "(or code out of date)!\n");

typically, this format would be coalesced into a single line.

2016-10-13 11:36:11

by Jean Delvare

[permalink] [raw]
Subject: Re: [PATCH 5/5] i2c: i2c-piix4: coding style fix - quoted string split across lines

On Tue, 11 Oct 2016 19:03:56 -0700, Joe Perches wrote:
> On Tue, 2016-10-11 at 18:34 +0100, Carlos Palminha wrote:
> []
> > diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
> []
> > @@ -260,7 +260,8 @@ static int piix4_setup(struct pci_dev *PIIX4_dev,
> > else if ((temp & 0x0E) == 0)
> > dev_dbg(&PIIX4_dev->dev, "Using SMI# for SMBus\n");
> > else
> > - dev_err(&PIIX4_dev->dev, "Illegal Interrupt configuration "
> > + dev_err(&PIIX4_dev->dev,
> > + "Illegal Interrupt configuration "
> > "(or code out of date)!\n");
>
> typically, this format would be coalesced into a single line.

Especially when the patch claims to "fix quoted string split across
lines" :-D

--
Jean Delvare
SUSE L3 Support

2016-10-13 11:43:38

by Jean Delvare

[permalink] [raw]
Subject: Re: [PATCH 0/5] i2c: i2c-piix4: set of coding style fixes

Hi Carlos,

On Tue, 11 Oct 2016 18:24:36 +0100, Carlos Palminha wrote:
> This patchset fixes several coding style issues.
>
> Carlos Palminha (5):
> i2c: i2c-piix4: coding style fix - '*' adjacent to data name
> i2c: i2c-piix4: coding style fix - assignment in if condition
> i2c: i2c-piix4: coding style fix - long comments blocks
> i2c: i2c-piix4: coding style fix - spaces with open parenthesis
> i2c: i2c-piix4: coding style fix - quoted string split across lines
>
> drivers/i2c/busses/i2c-piix4.c | 144 +++++++++++++++++++++++------------------
> 1 file changed, 82 insertions(+), 62 deletions(-)

Except for the two issues which were already pointed out, I'm fine with
these changes, however there is no good reason to split them into 5
separate patches. Fixing the coding style is one goal, it should be all
done with a single patch. So, when you resubmit, please do so as a
single patch.

Thanks,
--
Jean Delvare
SUSE L3 Support

2016-10-13 11:46:07

by Jean Delvare

[permalink] [raw]
Subject: Re: [PATCH 3/5] i2c: i2c-piix4: coding style fix - long comments blocks

Hi Carlos,

On Tue, 11 Oct 2016 18:24:39 +0100, Carlos Palminha wrote:
> Signed-off-by: Carlos Palminha <[email protected]>
> ---
> drivers/i2c/busses/i2c-piix4.c | 94 ++++++++++++++++++++++++------------------
> 1 file changed, 54 insertions(+), 40 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
> index 5d6f637..85b1052 100644
> --- a/drivers/i2c/busses/i2c-piix4.c
> +++ b/drivers/i2c/busses/i2c-piix4.c
> (...)
> /*
> - Supports:
> - Intel PIIX4, 440MX
> - Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100
> - ATI IXP200, IXP300, IXP400, SB600, SB700/SP5100, SB800
> - AMD Hudson-2, ML, CZ
> - SMSC Victory66
> -
> - Note: we assume there can only be one device, with one or more
> - SMBus interfaces.
> - The device can register multiple i2c_adapters (up to PIIX4_MAX_ADAPTERS).
> - For devices supporting multiple ports the i2c_adapter should provide
> - an i2c_algorithm to access them.
> -*/
> + * Supports:
> + * Intel PIIX4, 440MX
> + * Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100
> + * ATI IXP200, IXP300, IXP400, SB600, SB700/SP5100, SB800
> + * AMD Hudson-2, ML, CZ
> + * SMSC Victory66
> + *
> + * Note: we assume there can only be one device, with one or more

There's an extra space before "Note:", please remove.

> + * SMBus interfaces.
> + * The device can register multiple i2c_adapters (up to PIIX4_MAX_ADAPTERS).
> + * For devices supporting multiple ports the i2c_adapter should provide
> + * an i2c_algorithm to access them.
> + */

--
Jean Delvare
SUSE L3 Support

2016-10-13 16:44:58

by Carlos Palminha

[permalink] [raw]
Subject: Re: [PATCH 0/5] i2c: i2c-piix4: set of coding style fixes

Hi Jean,

On 13-10-2016 12:40, Jean Delvare wrote:
> Hi Carlos,
>
> On Tue, 11 Oct 2016 18:24:36 +0100, Carlos Palminha wrote:
>> This patchset fixes several coding style issues.
>>
>> Carlos Palminha (5):
>> i2c: i2c-piix4: coding style fix - '*' adjacent to data name
>> i2c: i2c-piix4: coding style fix - assignment in if condition
>> i2c: i2c-piix4: coding style fix - long comments blocks
>> i2c: i2c-piix4: coding style fix - spaces with open parenthesis
>> i2c: i2c-piix4: coding style fix - quoted string split across lines
>>
>> drivers/i2c/busses/i2c-piix4.c | 144 +++++++++++++++++++++++------------------
>> 1 file changed, 82 insertions(+), 62 deletions(-)
>
> Except for the two issues which were already pointed out, I'm fine with
> these changes, however there is no good reason to split them into 5
> separate patches. Fixing the coding style is one goal, it should be all
> done with a single patch. So, when you resubmit, please do so as a
> single patch.
>
> Thanks,
>

Sure... I'll resubmit as one patch.

Regards,
C.Palminha