[v6,03/10] clocksource/drivers/arm_arch_timer: Improve printk relevant code

Message ID 1467224153-22873-4-git-send-email-fu.wei@linaro.org
State New
Headers show

Commit Message

Fu Wei June 29, 2016, 6:15 p.m.
From: Fu Wei <fu.wei@linaro.org>


This patch defines pr_fmt(fmt) for all pr_* functions,
then the pr_* don't need to add "arch_timer:" everytime.

Also delete some Blank Spaces in arch_timer_banner,
according to the suggestion from checkpatch.pl.

No functional change.

Signed-off-by: Fu Wei <fu.wei@linaro.org>

---
 drivers/clocksource/arm_arch_timer.c | 52 +++++++++++++++++++-----------------
 1 file changed, 27 insertions(+), 25 deletions(-)

-- 
2.5.5

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Comments

Hanjun Guo June 30, 2016, 2:54 a.m. | #1
On 2016/6/30 2:15, fu.wei@linaro.org wrote:
> From: Fu Wei <fu.wei@linaro.org>

>

> This patch defines pr_fmt(fmt) for all pr_* functions,

> then the pr_* don't need to add "arch_timer:" everytime.

>

> Also delete some Blank Spaces in arch_timer_banner,

> according to the suggestion from checkpatch.pl.

>

> No functional change.

>

> Signed-off-by: Fu Wei <fu.wei@linaro.org>

> ---

>  drivers/clocksource/arm_arch_timer.c | 52 +++++++++++++++++++-----------------

>  1 file changed, 27 insertions(+), 25 deletions(-)

>

> diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c

> index 966c574..9540e9d 100644

> --- a/drivers/clocksource/arm_arch_timer.c

> +++ b/drivers/clocksource/arm_arch_timer.c

> @@ -29,6 +29,9 @@

>

>  #include <clocksource/arm_arch_timer.h>

>

> +#undef pr_fmt

> +#define pr_fmt(fmt) "arch_timer: " fmt

> +

>  #define CNTTIDR		0x08

>  #define CNTTIDR_VIRT(n)	(BIT(1) << ((n) * 4))

>

> @@ -388,24 +391,24 @@ arch_timer_detect_rate(void __iomem *cntbase, struct device_node *np)

>

>  	/* Check the timer frequency. */

>  	if (arch_timer_rate == 0)

> -		pr_warn("Architected timer frequency not available\n");

> +		pr_warn("frequency not available\n");

>  }

>

>  static void arch_timer_banner(unsigned type)

>  {

> -	pr_info("Architected %s%s%s timer(s) running at %lu.%02luMHz (%s%s%s).\n",

> -		     type & ARCH_CP15_TIMER ? "cp15" : "",

> -		     type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  " and " : "",

> -		     type & ARCH_MEM_TIMER ? "mmio" : "",

> -		     (unsigned long)arch_timer_rate / 1000000,

> -		     (unsigned long)(arch_timer_rate / 10000) % 100,

> -		     type & ARCH_CP15_TIMER ?

> -		     (arch_timer_uses_ppi == VIRT_PPI) ? "virt" : "phys" :

> -			"",

> -		     type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  "/" : "",

> -		     type & ARCH_MEM_TIMER ?

> -			arch_timer_mem_use_virtual ? "virt" : "phys" :

> -			"");

> +	pr_info("%s%s%s timer(s) running at %lu.%02luMHz (%s%s%s).\n",

> +		type & ARCH_CP15_TIMER ? "cp15" : "",

> +		type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  " and " : "",

> +		type & ARCH_MEM_TIMER ? "mmio" : "",

> +		(unsigned long)arch_timer_rate / 1000000,

> +		(unsigned long)(arch_timer_rate / 10000) % 100,

> +		type & ARCH_CP15_TIMER ?

> +		(arch_timer_uses_ppi == VIRT_PPI) ? "virt" : "phys" :

> +		"",

> +		type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  "/" : "",

> +		type & ARCH_MEM_TIMER ?

> +		arch_timer_mem_use_virtual ? "virt" : "phys" :

> +		"");

>  }

>

>  u32 arch_timer_get_rate(void)

> @@ -498,7 +501,7 @@ static void __init arch_counter_register(unsigned type)

>

>  static void arch_timer_stop(struct clock_event_device *clk)

>  {

> -	pr_debug("arch_timer_teardown disable IRQ%d cpu #%d\n",

> +	pr_debug("teardown, disable IRQ%d cpu #%d\n",


Not a problem of this patch, but arch_timer_teardown is a function
name? I can't find where it's defined...

I think we can leave arch_timer as it but update it to:

pr_debug("arch_timer_stop disable IRQ%d cpu #%d\n",

Others are look good to me.

Thanks
Hanjun
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Fu Wei July 7, 2016, 4:12 p.m. | #2
Hi Hanjun

On 30 June 2016 at 10:54, Hanjun Guo <hanjun.guo@linaro.org> wrote:
> On 2016/6/30 2:15, fu.wei@linaro.org wrote:

>>

>> From: Fu Wei <fu.wei@linaro.org>

>>

>> This patch defines pr_fmt(fmt) for all pr_* functions,

>> then the pr_* don't need to add "arch_timer:" everytime.

>>

>> Also delete some Blank Spaces in arch_timer_banner,

>> according to the suggestion from checkpatch.pl.

>>

>> No functional change.

>>

>> Signed-off-by: Fu Wei <fu.wei@linaro.org>

>> ---

>>  drivers/clocksource/arm_arch_timer.c | 52

>> +++++++++++++++++++-----------------

>>  1 file changed, 27 insertions(+), 25 deletions(-)

>>

>> diff --git a/drivers/clocksource/arm_arch_timer.c

>> b/drivers/clocksource/arm_arch_timer.c

>> index 966c574..9540e9d 100644

>> --- a/drivers/clocksource/arm_arch_timer.c

>> +++ b/drivers/clocksource/arm_arch_timer.c

>> @@ -29,6 +29,9 @@

>>

>>  #include <clocksource/arm_arch_timer.h>

>>

>> +#undef pr_fmt

>> +#define pr_fmt(fmt) "arch_timer: " fmt

>> +

>>  #define CNTTIDR                0x08

>>  #define CNTTIDR_VIRT(n)        (BIT(1) << ((n) * 4))

>>

>> @@ -388,24 +391,24 @@ arch_timer_detect_rate(void __iomem *cntbase, struct

>> device_node *np)

>>

>>         /* Check the timer frequency. */

>>         if (arch_timer_rate == 0)

>> -               pr_warn("Architected timer frequency not available\n");

>> +               pr_warn("frequency not available\n");

>>  }

>>

>>  static void arch_timer_banner(unsigned type)

>>  {

>> -       pr_info("Architected %s%s%s timer(s) running at %lu.%02luMHz

>> (%s%s%s).\n",

>> -                    type & ARCH_CP15_TIMER ? "cp15" : "",

>> -                    type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  " and "

>> : "",

>> -                    type & ARCH_MEM_TIMER ? "mmio" : "",

>> -                    (unsigned long)arch_timer_rate / 1000000,

>> -                    (unsigned long)(arch_timer_rate / 10000) % 100,

>> -                    type & ARCH_CP15_TIMER ?

>> -                    (arch_timer_uses_ppi == VIRT_PPI) ? "virt" : "phys" :

>> -                       "",

>> -                    type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  "/" :

>> "",

>> -                    type & ARCH_MEM_TIMER ?

>> -                       arch_timer_mem_use_virtual ? "virt" : "phys" :

>> -                       "");

>> +       pr_info("%s%s%s timer(s) running at %lu.%02luMHz (%s%s%s).\n",

>> +               type & ARCH_CP15_TIMER ? "cp15" : "",

>> +               type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  " and " :

>> "",

>> +               type & ARCH_MEM_TIMER ? "mmio" : "",

>> +               (unsigned long)arch_timer_rate / 1000000,

>> +               (unsigned long)(arch_timer_rate / 10000) % 100,

>> +               type & ARCH_CP15_TIMER ?

>> +               (arch_timer_uses_ppi == VIRT_PPI) ? "virt" : "phys" :

>> +               "",

>> +               type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  "/" : "",

>> +               type & ARCH_MEM_TIMER ?

>> +               arch_timer_mem_use_virtual ? "virt" : "phys" :

>> +               "");

>>  }

>>

>>  u32 arch_timer_get_rate(void)

>> @@ -498,7 +501,7 @@ static void __init arch_counter_register(unsigned

>> type)

>>

>>  static void arch_timer_stop(struct clock_event_device *clk)

>>  {

>> -       pr_debug("arch_timer_teardown disable IRQ%d cpu #%d\n",

>> +       pr_debug("teardown, disable IRQ%d cpu #%d\n",

>

>

> Not a problem of this patch, but arch_timer_teardown is a function

> name? I can't find where it's defined...

>

> I think we can leave arch_timer as it but update it to:

>

> pr_debug("arch_timer_stop disable IRQ%d cpu #%d\n",


If so, you will see "arch_timer: arch_timer_stop disable IRQ%d cpu #%d\n "

I think we can do :

pr_debug(" disable IRQ%d cpu #%d\n",


>

> Others are look good to me.

>

> Thanks

> Hanjun




-- 
Best regards,

Fu Wei
Software Engineer
Red Hat
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Patch hide | download patch | download mbox

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 966c574..9540e9d 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -29,6 +29,9 @@ 
 
 #include <clocksource/arm_arch_timer.h>
 
+#undef pr_fmt
+#define pr_fmt(fmt) "arch_timer: " fmt
+
 #define CNTTIDR		0x08
 #define CNTTIDR_VIRT(n)	(BIT(1) << ((n) * 4))
 
@@ -388,24 +391,24 @@  arch_timer_detect_rate(void __iomem *cntbase, struct device_node *np)
 
 	/* Check the timer frequency. */
 	if (arch_timer_rate == 0)
-		pr_warn("Architected timer frequency not available\n");
+		pr_warn("frequency not available\n");
 }
 
 static void arch_timer_banner(unsigned type)
 {
-	pr_info("Architected %s%s%s timer(s) running at %lu.%02luMHz (%s%s%s).\n",
-		     type & ARCH_CP15_TIMER ? "cp15" : "",
-		     type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  " and " : "",
-		     type & ARCH_MEM_TIMER ? "mmio" : "",
-		     (unsigned long)arch_timer_rate / 1000000,
-		     (unsigned long)(arch_timer_rate / 10000) % 100,
-		     type & ARCH_CP15_TIMER ?
-		     (arch_timer_uses_ppi == VIRT_PPI) ? "virt" : "phys" :
-			"",
-		     type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  "/" : "",
-		     type & ARCH_MEM_TIMER ?
-			arch_timer_mem_use_virtual ? "virt" : "phys" :
-			"");
+	pr_info("%s%s%s timer(s) running at %lu.%02luMHz (%s%s%s).\n",
+		type & ARCH_CP15_TIMER ? "cp15" : "",
+		type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  " and " : "",
+		type & ARCH_MEM_TIMER ? "mmio" : "",
+		(unsigned long)arch_timer_rate / 1000000,
+		(unsigned long)(arch_timer_rate / 10000) % 100,
+		type & ARCH_CP15_TIMER ?
+		(arch_timer_uses_ppi == VIRT_PPI) ? "virt" : "phys" :
+		"",
+		type == (ARCH_CP15_TIMER | ARCH_MEM_TIMER) ?  "/" : "",
+		type & ARCH_MEM_TIMER ?
+		arch_timer_mem_use_virtual ? "virt" : "phys" :
+		"");
 }
 
 u32 arch_timer_get_rate(void)
@@ -498,7 +501,7 @@  static void __init arch_counter_register(unsigned type)
 
 static void arch_timer_stop(struct clock_event_device *clk)
 {
-	pr_debug("arch_timer_teardown disable IRQ%d cpu #%d\n",
+	pr_debug("teardown, disable IRQ%d cpu #%d\n",
 		 clk->irq, smp_processor_id());
 
 	disable_percpu_irq(arch_timer_ppi[arch_timer_uses_ppi]);
@@ -597,8 +600,7 @@  static int __init arch_timer_register(void)
 	}
 
 	if (err) {
-		pr_err("arch_timer: can't register interrupt %d (%d)\n",
-		       ppi, err);
+		pr_err("can't register interrupt %d (%d)\n", ppi, err);
 		goto out_free;
 	}
 
@@ -650,7 +652,7 @@  static int __init arch_timer_mem_register(void __iomem *base, unsigned int irq)
 
 	ret = request_irq(irq, func, IRQF_TIMER, "arch_mem_timer", &t->evt);
 	if (ret) {
-		pr_err("arch_timer: Failed to request mem timer irq\n");
+		pr_err("Failed to request mem timer irq\n");
 		kfree(t);
 	}
 
@@ -727,7 +729,7 @@  static void __init arch_timer_init(void)
 		}
 
 		if (!has_ppi) {
-			pr_warn("arch_timer: No interrupt available, giving up\n");
+			pr_warn("No interrupt available, giving up\n");
 			return;
 		}
 	}
@@ -743,7 +745,7 @@  static void __init arch_timer_of_init(struct device_node *np)
 	int i;
 
 	if (arch_timers_present & ARCH_CP15_TIMER) {
-		pr_warn("arch_timer: multiple nodes in dt, skipping\n");
+		pr_warn("multiple nodes in dt, skipping\n");
 		return;
 	}
 
@@ -778,7 +780,7 @@  static void __init arch_timer_mem_init(struct device_node *np)
 	arch_timers_present |= ARCH_MEM_TIMER;
 	cntctlbase = of_iomap(np, 0);
 	if (!cntctlbase) {
-		pr_err("arch_timer: Can't find CNTCTLBase\n");
+		pr_err("Can't find CNTCTLBase\n");
 		return;
 	}
 
@@ -793,7 +795,7 @@  static void __init arch_timer_mem_init(struct device_node *np)
 		u32 cntacr;
 
 		if (of_property_read_u32(frame, "frame-number", &n)) {
-			pr_err("arch_timer: Missing frame-number\n");
+			pr_err("Missing frame-number\n");
 			of_node_put(frame);
 			goto out;
 		}
@@ -821,7 +823,7 @@  static void __init arch_timer_mem_init(struct device_node *np)
 
 	base = arch_counter_base = of_iomap(best_frame, 0);
 	if (!base) {
-		pr_err("arch_timer: Can't map frame's registers\n");
+		pr_err("Can't map frame's registers\n");
 		goto out;
 	}
 
@@ -831,7 +833,7 @@  static void __init arch_timer_mem_init(struct device_node *np)
 		irq = irq_of_parse_and_map(best_frame, PHYS_SPI);
 
 	if (!irq) {
-		pr_err("arch_timer: Frame missing %s irq",
+		pr_err("Frame missing %s irq",
 		       arch_timer_mem_use_virtual ? "virt" : "phys");
 		goto out;
 	}
@@ -869,7 +871,7 @@  static int __init arch_timer_acpi_init(struct acpi_table_header *table)
 	struct acpi_table_gtdt *gtdt;
 
 	if (arch_timers_present & ARCH_CP15_TIMER) {
-		pr_warn("arch_timer: already initialized, skipping\n");
+		pr_warn("already initialized, skipping\n");
 		return -EINVAL;
 	}