2011-05-28 14:54:56

by Marco Stornelli

[permalink] [raw]
Subject: [PATCH 2/2] ramoops: add new line to printks

From: Marco Stornelli <[email protected]>

Add new line to each printk.

Signed-off-by: Marco Stornelli <[email protected]>
---

diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index bf5f9f6..6662c1b 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -111,14 +111,14 @@ static int __init ramoops_probe(struct platform_device *pdev)
int err = -EINVAL;

if (!pdata->mem_size) {
- printk(KERN_ERR "ramoops: invalid size specification");
+ printk(KERN_ERR "ramoops: invalid size specification\n");
goto fail3;
}

rounddown_pow_of_two(pdata->mem_size);

if (pdata->mem_size < RECORD_SIZE) {
- printk(KERN_ERR "ramoops: size too small");
+ printk(KERN_ERR "ramoops: size too small\n");
goto fail3;
}

@@ -128,21 +128,21 @@ static int __init ramoops_probe(struct platform_device *pdev)
cxt->phys_addr = pdata->mem_address;

if (!request_mem_region(cxt->phys_addr, cxt->size, "ramoops")) {
- printk(KERN_ERR "ramoops: request mem region failed");
+ printk(KERN_ERR "ramoops: request mem region failed\n");
err = -EINVAL;
goto fail3;
}

cxt->virt_addr = ioremap(cxt->phys_addr, cxt->size);
if (!cxt->virt_addr) {
- printk(KERN_ERR "ramoops: ioremap failed");
+ printk(KERN_ERR "ramoops: ioremap failed\n");
goto fail2;
}

cxt->dump.dump = ramoops_do_dump;
err = kmsg_dump_register(&cxt->dump);
if (err) {
- printk(KERN_ERR "ramoops: registering kmsg dumper failed");
+ printk(KERN_ERR "ramoops: registering kmsg dumper failed\n");
goto fail1;
}

@@ -161,7 +161,7 @@ static int __exit ramoops_remove(struct platform_device *pdev)
struct ramoops_context *cxt = &oops_cxt;

if (kmsg_dump_unregister(&cxt->dump) < 0)
- printk(KERN_WARNING "ramoops: could not unregister kmsg_dumper");
+ printk(KERN_WARNING "ramoops: could not unregister kmsg_dumper\n");

iounmap(cxt->virt_addr);
release_mem_region(cxt->phys_addr, cxt->size);


2011-06-07 16:58:09

by Marco Stornelli

[permalink] [raw]
Subject: [PATCH 2/2] ramoops: add new line to printks

From: Marco Stornelli <[email protected]>

Add new line to each printk.

Signed-off-by: Marco Stornelli <[email protected]>
CC: Kyungmin Park <[email protected]>
CC: Am?rico Wang <[email protected]>
Reported-by: Stevie Trujillo <[email protected]>
---
diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index df092e1..20e9d3e 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -111,14 +111,14 @@ static int __init ramoops_probe(struct platform_device *pdev)
int err = -EINVAL;

if (!pdata->mem_size) {
- printk(KERN_ERR "ramoops: invalid size specification");
+ printk(KERN_ERR "ramoops: invalid size specification\n");
goto fail3;
}

rounddown_pow_of_two(pdata->mem_size);

if (pdata->mem_size < RECORD_SIZE) {
- printk(KERN_ERR "ramoops: size too small");
+ printk(KERN_ERR "ramoops: size too small\n");
goto fail3;
}

@@ -128,21 +128,21 @@ static int __init ramoops_probe(struct platform_device *pdev)
cxt->phys_addr = pdata->mem_address;

if (!request_mem_region(cxt->phys_addr, cxt->size, "ramoops")) {
- printk(KERN_ERR "ramoops: request mem region failed");
+ printk(KERN_ERR "ramoops: request mem region failed\n");
err = -EINVAL;
goto fail3;
}

cxt->virt_addr = ioremap(cxt->phys_addr, cxt->size);
if (!cxt->virt_addr) {
- printk(KERN_ERR "ramoops: ioremap failed");
+ printk(KERN_ERR "ramoops: ioremap failed\n");
goto fail2;
}

cxt->dump.dump = ramoops_do_dump;
err = kmsg_dump_register(&cxt->dump);
if (err) {
- printk(KERN_ERR "ramoops: registering kmsg dumper failed");
+ printk(KERN_ERR "ramoops: registering kmsg dumper failed\n");
goto fail1;
}

@@ -161,7 +161,7 @@ static int __exit ramoops_remove(struct platform_device *pdev)
struct ramoops_context *cxt = &oops_cxt;

if (kmsg_dump_unregister(&cxt->dump) < 0)
- printk(KERN_WARNING "ramoops: could not unregister kmsg_dumper");
+ printk(KERN_WARNING "ramoops: could not unregister kmsg_dumper\n");

iounmap(cxt->virt_addr);
release_mem_region(cxt->phys_addr, cxt->size);

2011-06-08 16:02:38

by Cong Wang

[permalink] [raw]
Subject: Re: [PATCH 2/2] ramoops: add new line to printks

On Wed, Jun 8, 2011 at 12:52 AM, Marco Stornelli
<[email protected]> wrote:
> From: Marco Stornelli <[email protected]>
>
> Add new line to each printk.
>
> Signed-off-by: Marco Stornelli <[email protected]>
> CC: Kyungmin Park <[email protected]>
> CC: Américo Wang <[email protected]>
> Reported-by: Stevie Trujillo <[email protected]>

This change is trivial, and it looks good too.

Thanks.

2011-06-08 16:22:46

by Joe Perches

[permalink] [raw]
Subject: Re: [PATCH 2/2] ramoops: add new line to printks

On Tue, 2011-06-07 at 18:52 +0200, Marco Stornelli wrote:
> From: Marco Stornelli <[email protected]>
> Add new line to each printk.

Perhaps use pr_<level> and pr_fmt instead?
---
drivers/char/ramoops.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index 1a9f5f6..1283180 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -19,6 +19,8 @@
*
*/

+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kmsg_dump.h>
@@ -112,14 +114,14 @@ static int __init ramoops_probe(struct platform_device *pdev)
}

if (!mem_size) {
- printk(KERN_ERR "ramoops: invalid size specification");
+ pr_err("invalid size specification\n");
goto fail3;
}

rounddown_pow_of_two(mem_size);

if (mem_size < RECORD_SIZE) {
- printk(KERN_ERR "ramoops: size too small");
+ pr_err("size too small\n");
goto fail3;
}

@@ -129,21 +131,21 @@ static int __init ramoops_probe(struct platform_device *pdev)
cxt->phys_addr = mem_address;

if (!request_mem_region(cxt->phys_addr, cxt->size, "ramoops")) {
- printk(KERN_ERR "ramoops: request mem region failed");
+ pr_err("request mem region failed\n");
err = -EINVAL;
goto fail3;
}

cxt->virt_addr = ioremap(cxt->phys_addr, cxt->size);
if (!cxt->virt_addr) {
- printk(KERN_ERR "ramoops: ioremap failed");
+ pr_err("ioremap failed\n");
goto fail2;
}

cxt->dump.dump = ramoops_do_dump;
err = kmsg_dump_register(&cxt->dump);
if (err) {
- printk(KERN_ERR "ramoops: registering kmsg dumper failed");
+ pr_err("registering kmsg dumper failed\n");
goto fail1;
}

@@ -162,7 +164,7 @@ static int __exit ramoops_remove(struct platform_device *pdev)
struct ramoops_context *cxt = &oops_cxt;

if (kmsg_dump_unregister(&cxt->dump) < 0)
- printk(KERN_WARNING "ramoops: could not unregister kmsg_dumper");
+ pr_warn("could not unregister kmsg_dumper\n");

iounmap(cxt->virt_addr);
release_mem_region(cxt->phys_addr, cxt->size);

2011-06-08 19:16:48

by Marco Stornelli

[permalink] [raw]
Subject: [PATCH 2/2 v2] ramoops: add new line to each print

From: Marco Stornelli <[email protected]>

Add new line to each print.

Signed-off-by: Marco Stornelli <[email protected]>
CC: Kyungmin Park <[email protected]>
CC: Américo Wang <[email protected]>
CC: Joe Perches <[email protected]>
Reported-by: Stevie Trujillo <[email protected]>
---
ChangeLog:
- v2: used pr_<level> instead of printk

diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index df092e1..c3bf9b5 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -19,6 +19,8 @@
*
*/

+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kmsg_dump.h>
@@ -111,14 +113,14 @@ static int __init ramoops_probe(struct platform_device *pdev)
int err = -EINVAL;

if (!pdata->mem_size) {
- printk(KERN_ERR "ramoops: invalid size specification");
+ pr_err("invalid size specification\n");
goto fail3;
}

rounddown_pow_of_two(pdata->mem_size);

if (pdata->mem_size < RECORD_SIZE) {
- printk(KERN_ERR "ramoops: size too small");
+ pr_err("size too small\n");
goto fail3;
}

@@ -128,21 +130,21 @@ static int __init ramoops_probe(struct platform_device *pdev)
cxt->phys_addr = pdata->mem_address;

if (!request_mem_region(cxt->phys_addr, cxt->size, "ramoops")) {
- printk(KERN_ERR "ramoops: request mem region failed");
+ pr_err("request mem region failed\n");
err = -EINVAL;
goto fail3;
}

cxt->virt_addr = ioremap(cxt->phys_addr, cxt->size);
if (!cxt->virt_addr) {
- printk(KERN_ERR "ramoops: ioremap failed");
+ pr_err("ioremap failed\n");
goto fail2;
}

cxt->dump.dump = ramoops_do_dump;
err = kmsg_dump_register(&cxt->dump);
if (err) {
- printk(KERN_ERR "ramoops: registering kmsg dumper failed");
+ pr_err("registering kmsg dumper failed\n");
goto fail1;
}

@@ -161,7 +163,7 @@ static int __exit ramoops_remove(struct platform_device *pdev)
struct ramoops_context *cxt = &oops_cxt;

if (kmsg_dump_unregister(&cxt->dump) < 0)
- printk(KERN_WARNING "ramoops: could not unregister kmsg_dumper");
+ pr_warn("could not unregister kmsg_dumper\n");

iounmap(cxt->virt_addr);
release_mem_region(cxt->phys_addr, cxt->size);
@@ -186,6 +188,8 @@ static int __init ramoops_init(void)
* if we didn't find a platform device, we use module parameters
* building platform data on the fly.
*/
+ pr_info("platform device not found, "
+ "using module parameters\n");
dummy_data = kzalloc(sizeof(struct ramoops_platform_data),
GFP_KERNEL);
if (!dummy_data)

2011-06-08 19:33:40

by Marco Stornelli

[permalink] [raw]
Subject: Re: [PATCH 2/2 v2] ramoops: add new line to each print

Il 08/06/2011 21:27, Joe Perches ha scritto:
> On Wed, 2011-06-08 at 21:07 +0200, Marco Stornelli wrote:
>> From: Marco Stornelli<[email protected]>
>> Add new line to each print.
>> diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
> []
>> @@ -186,6 +188,8 @@ static int __init ramoops_init(void)
>> * if we didn't find a platform device, we use module parameters
>> * building platform data on the fly.
>> */
>> + pr_info("platform device not found, "
>> + "using module parameters\n");
>
> Thanks Marco, I think that looks better.
>
> Trivia:
>
> This fits on a single line and it's not generally a
> good thing to split a format across multiple lines.
>
> cheers, Joe

Mmmm...my editor said 81 cols, so I split the message into two lines.
I'll check it again.

Marco

2011-06-08 19:27:47

by Joe Perches

[permalink] [raw]
Subject: Re: [PATCH 2/2 v2] ramoops: add new line to each print

On Wed, 2011-06-08 at 21:07 +0200, Marco Stornelli wrote:
> From: Marco Stornelli <[email protected]>
> Add new line to each print.
> diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
[]
> @@ -186,6 +188,8 @@ static int __init ramoops_init(void)
> * if we didn't find a platform device, we use module parameters
> * building platform data on the fly.
> */
> + pr_info("platform device not found, "
> + "using module parameters\n");

Thanks Marco, I think that looks better.

Trivia:

This fits on a single line and it's not generally a
good thing to split a format across multiple lines.

cheers, Joe

2011-06-08 19:53:32

by Marco Stornelli

[permalink] [raw]
Subject: [PATCH 2/2 v3] ramoops: add new line to each print

From: Marco Stornelli <[email protected]>

Add new line to each print.

Signed-off-by: Marco Stornelli <[email protected]>
CC: Kyungmin Park <[email protected]>
CC: Américo Wang <[email protected]>
CC: Joe Perches <[email protected]>
Reported-by: Stevie Trujillo <[email protected]>
---
ChangeLog:
- v3: removed double line from pr_info
- v2: used pr_<level> instead of printk
- v1: initial draft

diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
index df092e1..5b4a5e1 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -19,6 +19,8 @@
*
*/

+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kmsg_dump.h>
@@ -111,14 +113,14 @@ static int __init ramoops_probe(struct platform_device *pdev)
int err = -EINVAL;

if (!pdata->mem_size) {
- printk(KERN_ERR "ramoops: invalid size specification");
+ pr_err("invalid size specification\n");
goto fail3;
}

rounddown_pow_of_two(pdata->mem_size);

if (pdata->mem_size < RECORD_SIZE) {
- printk(KERN_ERR "ramoops: size too small");
+ pr_err("size too small\n");
goto fail3;
}

@@ -128,21 +130,21 @@ static int __init ramoops_probe(struct platform_device *pdev)
cxt->phys_addr = pdata->mem_address;

if (!request_mem_region(cxt->phys_addr, cxt->size, "ramoops")) {
- printk(KERN_ERR "ramoops: request mem region failed");
+ pr_err("request mem region failed\n");
err = -EINVAL;
goto fail3;
}

cxt->virt_addr = ioremap(cxt->phys_addr, cxt->size);
if (!cxt->virt_addr) {
- printk(KERN_ERR "ramoops: ioremap failed");
+ pr_err("ioremap failed\n");
goto fail2;
}

cxt->dump.dump = ramoops_do_dump;
err = kmsg_dump_register(&cxt->dump);
if (err) {
- printk(KERN_ERR "ramoops: registering kmsg dumper failed");
+ pr_err("registering kmsg dumper failed\n");
goto fail1;
}

@@ -161,7 +163,7 @@ static int __exit ramoops_remove(struct platform_device *pdev)
struct ramoops_context *cxt = &oops_cxt;

if (kmsg_dump_unregister(&cxt->dump) < 0)
- printk(KERN_WARNING "ramoops: could not unregister kmsg_dumper");
+ pr_warn("could not unregister kmsg_dumper\n");

iounmap(cxt->virt_addr);
release_mem_region(cxt->phys_addr, cxt->size);
@@ -186,6 +188,7 @@ static int __init ramoops_init(void)
* if we didn't find a platform device, we use module parameters
* building platform data on the fly.
*/
+ pr_info("platform device not found, using module parameters\n");
dummy_data = kzalloc(sizeof(struct ramoops_platform_data),
GFP_KERNEL);
if (!dummy_data)