2018-07-02 21:16:10

by Jae Hyun Yoo

[permalink] [raw]
Subject: [PATCH] i2c: aspeed: Add newline characters into message printings.

There are some log printing without a newline character. This
patch adds the missing newline characters.

Signed-off-by: Jae Hyun Yoo <[email protected]>
---
drivers/i2c/busses/i2c-aspeed.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
index 60e4d0e939a3..e3007c1c4ac5 100644
--- a/drivers/i2c/busses/i2c-aspeed.c
+++ b/drivers/i2c/busses/i2c-aspeed.c
@@ -407,7 +407,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
*/
ret = aspeed_i2c_is_irq_error(irq_status);
if (ret < 0) {
- dev_dbg(bus->dev, "received error interrupt: 0x%08x",
+ dev_dbg(bus->dev, "received error interrupt: 0x%08x\n",
irq_status);
bus->cmd_err = ret;
bus->master_state = ASPEED_I2C_MASTER_INACTIVE;
@@ -416,7 +416,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)

/* We are in an invalid state; reset bus to a known state. */
if (!bus->msgs) {
- dev_err(bus->dev, "bus in unknown state");
+ dev_err(bus->dev, "bus in unknown state\n");
bus->cmd_err = -EIO;
if (bus->master_state != ASPEED_I2C_MASTER_STOP)
aspeed_i2c_do_stop(bus);
@@ -431,7 +431,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
*/
if (bus->master_state == ASPEED_I2C_MASTER_START) {
if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
- pr_devel("no slave present at %02x", msg->addr);
+ pr_devel("no slave present at %02x\n", msg->addr);
status_ack |= ASPEED_I2CD_INTR_TX_NAK;
bus->cmd_err = -ENXIO;
aspeed_i2c_do_stop(bus);
@@ -451,11 +451,11 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
switch (bus->master_state) {
case ASPEED_I2C_MASTER_TX:
if (unlikely(irq_status & ASPEED_I2CD_INTR_TX_NAK)) {
- dev_dbg(bus->dev, "slave NACKed TX");
+ dev_dbg(bus->dev, "slave NACKed TX\n");
status_ack |= ASPEED_I2CD_INTR_TX_NAK;
goto error_and_stop;
} else if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
- dev_err(bus->dev, "slave failed to ACK TX");
+ dev_err(bus->dev, "slave failed to ACK TX\n");
goto error_and_stop;
}
status_ack |= ASPEED_I2CD_INTR_TX_ACK;
@@ -478,7 +478,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
/* fallthrough intended */
case ASPEED_I2C_MASTER_RX:
if (unlikely(!(irq_status & ASPEED_I2CD_INTR_RX_DONE))) {
- dev_err(bus->dev, "master failed to RX");
+ dev_err(bus->dev, "master failed to RX\n");
goto error_and_stop;
}
status_ack |= ASPEED_I2CD_INTR_RX_DONE;
@@ -509,7 +509,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
goto out_no_complete;
case ASPEED_I2C_MASTER_STOP:
if (unlikely(!(irq_status & ASPEED_I2CD_INTR_NORMAL_STOP))) {
- dev_err(bus->dev, "master failed to STOP");
+ dev_err(bus->dev, "master failed to STOP\n");
bus->cmd_err = -EIO;
/* Do not STOP as we have already tried. */
} else {
@@ -520,7 +520,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
goto out_complete;
case ASPEED_I2C_MASTER_INACTIVE:
dev_err(bus->dev,
- "master received interrupt 0x%08x, but is inactive",
+ "master received interrupt 0x%08x, but is inactive\n",
irq_status);
bus->cmd_err = -EIO;
/* Do not STOP as we should be inactive. */
@@ -851,7 +851,7 @@ static int aspeed_i2c_probe_bus(struct platform_device *pdev)
bus->rst = devm_reset_control_get_shared(&pdev->dev, NULL);
if (IS_ERR(bus->rst)) {
dev_err(&pdev->dev,
- "missing or invalid reset controller device tree entry");
+ "missing or invalid reset controller device tree entry\n");
return PTR_ERR(bus->rst);
}
reset_control_deassert(bus->rst);
--
2.17.1



2018-07-11 05:44:00

by Brendan Higgins

[permalink] [raw]
Subject: Re: [PATCH] i2c: aspeed: Add newline characters into message printings.

On Mon, Jul 2, 2018 at 2:14 PM Jae Hyun Yoo
<[email protected]> wrote:
>
> There are some log printing without a newline character. This
> patch adds the missing newline characters.
>
> Signed-off-by: Jae Hyun Yoo <[email protected]>
> ---
> drivers/i2c/busses/i2c-aspeed.c | 18 +++++++++---------
> 1 file changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
> index 60e4d0e939a3..e3007c1c4ac5 100644
> --- a/drivers/i2c/busses/i2c-aspeed.c
> +++ b/drivers/i2c/busses/i2c-aspeed.c
> @@ -407,7 +407,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
> */
> ret = aspeed_i2c_is_irq_error(irq_status);
> if (ret < 0) {
> - dev_dbg(bus->dev, "received error interrupt: 0x%08x",
> + dev_dbg(bus->dev, "received error interrupt: 0x%08x\n",
> irq_status);
> bus->cmd_err = ret;
> bus->master_state = ASPEED_I2C_MASTER_INACTIVE;
> @@ -416,7 +416,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
>
> /* We are in an invalid state; reset bus to a known state. */
> if (!bus->msgs) {
> - dev_err(bus->dev, "bus in unknown state");
> + dev_err(bus->dev, "bus in unknown state\n");
> bus->cmd_err = -EIO;
> if (bus->master_state != ASPEED_I2C_MASTER_STOP)
> aspeed_i2c_do_stop(bus);
> @@ -431,7 +431,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
> */
> if (bus->master_state == ASPEED_I2C_MASTER_START) {
> if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
> - pr_devel("no slave present at %02x", msg->addr);
> + pr_devel("no slave present at %02x\n", msg->addr);

Unless something changed in the last couple versions of the kernel, this is the
only line that actually changes anything. dev_* inserts a newline for every
call.

Admittedly, the rest of the file is pretty inconsistent, so if you really want
to make all these changes, I don't feel super strongly about it.

> status_ack |= ASPEED_I2CD_INTR_TX_NAK;
> bus->cmd_err = -ENXIO;
> aspeed_i2c_do_stop(bus);
> @@ -451,11 +451,11 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
> switch (bus->master_state) {
> case ASPEED_I2C_MASTER_TX:
> if (unlikely(irq_status & ASPEED_I2CD_INTR_TX_NAK)) {
> - dev_dbg(bus->dev, "slave NACKed TX");
> + dev_dbg(bus->dev, "slave NACKed TX\n");
> status_ack |= ASPEED_I2CD_INTR_TX_NAK;
> goto error_and_stop;
> } else if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
> - dev_err(bus->dev, "slave failed to ACK TX");
> + dev_err(bus->dev, "slave failed to ACK TX\n");
> goto error_and_stop;
> }
> status_ack |= ASPEED_I2CD_INTR_TX_ACK;
> @@ -478,7 +478,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
> /* fallthrough intended */
> case ASPEED_I2C_MASTER_RX:
> if (unlikely(!(irq_status & ASPEED_I2CD_INTR_RX_DONE))) {
> - dev_err(bus->dev, "master failed to RX");
> + dev_err(bus->dev, "master failed to RX\n");
> goto error_and_stop;
> }
> status_ack |= ASPEED_I2CD_INTR_RX_DONE;
> @@ -509,7 +509,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
> goto out_no_complete;
> case ASPEED_I2C_MASTER_STOP:
> if (unlikely(!(irq_status & ASPEED_I2CD_INTR_NORMAL_STOP))) {
> - dev_err(bus->dev, "master failed to STOP");
> + dev_err(bus->dev, "master failed to STOP\n");
> bus->cmd_err = -EIO;
> /* Do not STOP as we have already tried. */
> } else {
> @@ -520,7 +520,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
> goto out_complete;
> case ASPEED_I2C_MASTER_INACTIVE:
> dev_err(bus->dev,
> - "master received interrupt 0x%08x, but is inactive",
> + "master received interrupt 0x%08x, but is inactive\n",
> irq_status);
> bus->cmd_err = -EIO;
> /* Do not STOP as we should be inactive. */
> @@ -851,7 +851,7 @@ static int aspeed_i2c_probe_bus(struct platform_device *pdev)
> bus->rst = devm_reset_control_get_shared(&pdev->dev, NULL);
> if (IS_ERR(bus->rst)) {
> dev_err(&pdev->dev,
> - "missing or invalid reset controller device tree entry");
> + "missing or invalid reset controller device tree entry\n");
> return PTR_ERR(bus->rst);
> }
> reset_control_deassert(bus->rst);
> --
> 2.17.1
>

Reviewed-by: Brendan Higgins <[email protected]>

2018-07-11 23:42:50

by Jae Hyun Yoo

[permalink] [raw]
Subject: Re: [PATCH] i2c: aspeed: Add newline characters into message printings.

On 7/10/2018 10:42 PM, Brendan Higgins wrote:
> On Mon, Jul 2, 2018 at 2:14 PM Jae Hyun Yoo
> <[email protected]> wrote:
>>
>> There are some log printing without a newline character. This
>> patch adds the missing newline characters.
>>
>> Signed-off-by: Jae Hyun Yoo <[email protected]>
>> ---
>> drivers/i2c/busses/i2c-aspeed.c | 18 +++++++++---------
>> 1 file changed, 9 insertions(+), 9 deletions(-)
>>
>> diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
>> index 60e4d0e939a3..e3007c1c4ac5 100644
>> --- a/drivers/i2c/busses/i2c-aspeed.c
>> +++ b/drivers/i2c/busses/i2c-aspeed.c
>> @@ -407,7 +407,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
>> */
>> ret = aspeed_i2c_is_irq_error(irq_status);
>> if (ret < 0) {
>> - dev_dbg(bus->dev, "received error interrupt: 0x%08x",
>> + dev_dbg(bus->dev, "received error interrupt: 0x%08x\n",
>> irq_status);
>> bus->cmd_err = ret;
>> bus->master_state = ASPEED_I2C_MASTER_INACTIVE;
>> @@ -416,7 +416,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
>>
>> /* We are in an invalid state; reset bus to a known state. */
>> if (!bus->msgs) {
>> - dev_err(bus->dev, "bus in unknown state");
>> + dev_err(bus->dev, "bus in unknown state\n");
>> bus->cmd_err = -EIO;
>> if (bus->master_state != ASPEED_I2C_MASTER_STOP)
>> aspeed_i2c_do_stop(bus);
>> @@ -431,7 +431,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
>> */
>> if (bus->master_state == ASPEED_I2C_MASTER_START) {
>> if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
>> - pr_devel("no slave present at %02x", msg->addr);
>> + pr_devel("no slave present at %02x\n", msg->addr);
>
> Unless something changed in the last couple versions of the kernel, this is the
> only line that actually changes anything. dev_* inserts a newline for every
> call.
>
> Admittedly, the rest of the file is pretty inconsistent, so if you really want
> to make all these changes, I don't feel super strongly about it.
>

Agreed. Will drop this patch.

Thanks,

Jae

>> status_ack |= ASPEED_I2CD_INTR_TX_NAK;
>> bus->cmd_err = -ENXIO;
>> aspeed_i2c_do_stop(bus);
>> @@ -451,11 +451,11 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
>> switch (bus->master_state) {
>> case ASPEED_I2C_MASTER_TX:
>> if (unlikely(irq_status & ASPEED_I2CD_INTR_TX_NAK)) {
>> - dev_dbg(bus->dev, "slave NACKed TX");
>> + dev_dbg(bus->dev, "slave NACKed TX\n");
>> status_ack |= ASPEED_I2CD_INTR_TX_NAK;
>> goto error_and_stop;
>> } else if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
>> - dev_err(bus->dev, "slave failed to ACK TX");
>> + dev_err(bus->dev, "slave failed to ACK TX\n");
>> goto error_and_stop;
>> }
>> status_ack |= ASPEED_I2CD_INTR_TX_ACK;
>> @@ -478,7 +478,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
>> /* fallthrough intended */
>> case ASPEED_I2C_MASTER_RX:
>> if (unlikely(!(irq_status & ASPEED_I2CD_INTR_RX_DONE))) {
>> - dev_err(bus->dev, "master failed to RX");
>> + dev_err(bus->dev, "master failed to RX\n");
>> goto error_and_stop;
>> }
>> status_ack |= ASPEED_I2CD_INTR_RX_DONE;
>> @@ -509,7 +509,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
>> goto out_no_complete;
>> case ASPEED_I2C_MASTER_STOP:
>> if (unlikely(!(irq_status & ASPEED_I2CD_INTR_NORMAL_STOP))) {
>> - dev_err(bus->dev, "master failed to STOP");
>> + dev_err(bus->dev, "master failed to STOP\n");
>> bus->cmd_err = -EIO;
>> /* Do not STOP as we have already tried. */
>> } else {
>> @@ -520,7 +520,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
>> goto out_complete;
>> case ASPEED_I2C_MASTER_INACTIVE:
>> dev_err(bus->dev,
>> - "master received interrupt 0x%08x, but is inactive",
>> + "master received interrupt 0x%08x, but is inactive\n",
>> irq_status);
>> bus->cmd_err = -EIO;
>> /* Do not STOP as we should be inactive. */
>> @@ -851,7 +851,7 @@ static int aspeed_i2c_probe_bus(struct platform_device *pdev)
>> bus->rst = devm_reset_control_get_shared(&pdev->dev, NULL);
>> if (IS_ERR(bus->rst)) {
>> dev_err(&pdev->dev,
>> - "missing or invalid reset controller device tree entry");
>> + "missing or invalid reset controller device tree entry\n");
>> return PTR_ERR(bus->rst);
>> }
>> reset_control_deassert(bus->rst);
>> --
>> 2.17.1
>>
>
> Reviewed-by: Brendan Higgins <[email protected]>
>

2018-07-12 00:06:42

by Joe Perches

[permalink] [raw]
Subject: Re: [PATCH] i2c: aspeed: Add newline characters into message printings.

On Wed, 2018-07-11 at 09:53 -0700, Jae Hyun Yoo wrote:
> On 7/10/2018 10:42 PM, Brendan Higgins wrote:
> > On Mon, Jul 2, 2018 at 2:14 PM Jae Hyun Yoo <[email protected]> wrote:
> > > There are some log printing without a newline character. This
> > > patch adds the missing newline characters.
[]
> > > diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
[]
> > > @@ -431,7 +431,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
> > > */
> > > if (bus->master_state == ASPEED_I2C_MASTER_START) {
> > > if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
> > > - pr_devel("no slave present at %02x", msg->addr);
> > > + pr_devel("no slave present at %02x\n", msg->addr);
> >
> > Unless something changed in the last couple versions of the kernel, this is the
> > only line that actually changes anything. dev_* inserts a newline for every
> > call.

Not true.

Any printk without KERN_CONT inserts a newline
if the last character
emitted is not a newline.

dev_<level> uses can also be followed by pr_cont.

So this patch does reduce the possibility of
interleaved messages from multiple processes.

2018-07-12 08:39:08

by Brendan Higgins

[permalink] [raw]
Subject: Re: [PATCH] i2c: aspeed: Add newline characters into message printings.

On Wed, Jul 11, 2018 at 10:10 AM Joe Perches <[email protected]> wrote:
>
> On Wed, 2018-07-11 at 09:53 -0700, Jae Hyun Yoo wrote:
> > On 7/10/2018 10:42 PM, Brendan Higgins wrote:
> > > On Mon, Jul 2, 2018 at 2:14 PM Jae Hyun Yoo <[email protected]> wrote:
> > > > There are some log printing without a newline character. This
> > > > patch adds the missing newline characters.
> []
> > > > diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
> []
> > > > @@ -431,7 +431,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
> > > > */
> > > > if (bus->master_state == ASPEED_I2C_MASTER_START) {
> > > > if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
> > > > - pr_devel("no slave present at %02x", msg->addr);
> > > > + pr_devel("no slave present at %02x\n", msg->addr);
> > >
> > > Unless something changed in the last couple versions of the kernel, this is the
> > > only line that actually changes anything. dev_* inserts a newline for every
> > > call.
>
> Not true.
>
> Any printk without KERN_CONT inserts a newline
> if the last character
> emitted is not a newline.
>
> dev_<level> uses can also be followed by pr_cont.
>
> So this patch does reduce the possibility of
> interleaved messages from multiple processes.

My mistake. Thanks for pointing that out.

Jae, forget what I said earlier. This looks good to me.

2018-07-12 17:12:07

by Jae Hyun Yoo

[permalink] [raw]
Subject: Re: [PATCH] i2c: aspeed: Add newline characters into message printings.

On 7/12/2018 1:38 AM, Brendan Higgins wrote:
> On Wed, Jul 11, 2018 at 10:10 AM Joe Perches <[email protected]> wrote:
>>
>> On Wed, 2018-07-11 at 09:53 -0700, Jae Hyun Yoo wrote:
>>> On 7/10/2018 10:42 PM, Brendan Higgins wrote:
>>>> On Mon, Jul 2, 2018 at 2:14 PM Jae Hyun Yoo <[email protected]> wrote:
>>>>> There are some log printing without a newline character. This
>>>>> patch adds the missing newline characters.
>> []
>>>>> diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c
>> []
>>>>> @@ -431,7 +431,7 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
>>>>> */
>>>>> if (bus->master_state == ASPEED_I2C_MASTER_START) {
>>>>> if (unlikely(!(irq_status & ASPEED_I2CD_INTR_TX_ACK))) {
>>>>> - pr_devel("no slave present at %02x", msg->addr);
>>>>> + pr_devel("no slave present at %02x\n", msg->addr);
>>>>
>>>> Unless something changed in the last couple versions of the kernel, this is the
>>>> only line that actually changes anything. dev_* inserts a newline for every
>>>> call.
>>
>> Not true.
>>
>> Any printk without KERN_CONT inserts a newline
>> if the last character
>> emitted is not a newline.
>>
>> dev_<level> uses can also be followed by pr_cont.
>>
>> So this patch does reduce the possibility of
>> interleaved messages from multiple processes.
>
> My mistake. Thanks for pointing that out.
>
> Jae, forget what I said earlier. This looks good to me.
>

Okay. I'll keep this patch as is.
Thanks Joe for your clarification!
Thanks Brendan for your 'Reviewed-by' tag!

Jae

2018-07-20 22:26:40

by Wolfram Sang

[permalink] [raw]
Subject: Re: [PATCH] i2c: aspeed: Add newline characters into message printings.

On Mon, Jul 02, 2018 at 02:13:59PM -0700, Jae Hyun Yoo wrote:
> There are some log printing without a newline character. This
> patch adds the missing newline characters.
>
> Signed-off-by: Jae Hyun Yoo <[email protected]>

Applied to for-next, thanks!


Attachments:
(No filename) (274.00 B)
signature.asc (849.00 B)
Download all attachments