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* [PATCH] arm64: clean the additional checks before calling ghes_notify_sea()
@ 2018-07-26 21:01 Dongjiu Geng
  2018-07-27 10:06 ` Will Deacon
  0 siblings, 1 reply; 6+ messages in thread
From: Dongjiu Geng @ 2018-07-26 21:01 UTC (permalink / raw)
  To: catalin.marinas, will.deacon, mark.rutland, lenb,
	rafael.j.wysocki, erik.schmauss, robert.moore, linux-arm-kernel,
	linux-kernel, linux-acpi, devel, gengdongjiu

In order to remove the additional check before calling the
ghes_notify_sea(), make stub definition when !CONFIG_ACPI_APEI_SEA.

Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---

This cleanup is ever mentioned by Mark Rutland in [1]

[1]:
https://lkml.org/lkml/2018/5/31/289
---
 arch/arm64/mm/fault.c | 7 +------
 include/acpi/ghes.h   | 4 ++++
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index b8eecc7..9ffe01d 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -727,12 +727,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
 
 int handle_guest_sea(phys_addr_t addr, unsigned int esr)
 {
-	int ret = -ENOENT;
-
-	if (IS_ENABLED(CONFIG_ACPI_APEI_SEA))
-		ret = ghes_notify_sea();
-
-	return ret;
+	return ghes_notify_sea();
 }
 
 asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,
diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 1624e2b..82cb4eb 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -118,6 +118,10 @@ static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
 	     (void *)section - (void *)(estatus + 1) < estatus->data_length; \
 	     section = acpi_hest_get_next(section))
 
+#ifdef CONFIG_ACPI_APEI_SEA
 int ghes_notify_sea(void);
+#else
+static inline int ghes_notify_sea(void) { return -ENOENT; }
+#endif
 
 #endif /* GHES_H */
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH] arm64: clean the additional checks before calling ghes_notify_sea()
  2018-07-26 21:01 [PATCH] arm64: clean the additional checks before calling ghes_notify_sea() Dongjiu Geng
@ 2018-07-27 10:06 ` Will Deacon
  2018-08-05  2:35   ` gengdongjiu
  0 siblings, 1 reply; 6+ messages in thread
From: Will Deacon @ 2018-07-27 10:06 UTC (permalink / raw)
  To: Dongjiu Geng
  Cc: catalin.marinas, mark.rutland, lenb, rafael.j.wysocki,
	erik.schmauss, robert.moore, linux-arm-kernel, linux-kernel,
	linux-acpi, devel

On Thu, Jul 26, 2018 at 05:01:47PM -0400, Dongjiu Geng wrote:
> In order to remove the additional check before calling the
> ghes_notify_sea(), make stub definition when !CONFIG_ACPI_APEI_SEA.
> 
> Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
> ---

Acked-by: Will Deacon <will.deacon@arm.com>

Will

> This cleanup is ever mentioned by Mark Rutland in [1]
> 
> [1]:
> https://lkml.org/lkml/2018/5/31/289
> ---
>  arch/arm64/mm/fault.c | 7 +------
>  include/acpi/ghes.h   | 4 ++++
>  2 files changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
> index b8eecc7..9ffe01d 100644
> --- a/arch/arm64/mm/fault.c
> +++ b/arch/arm64/mm/fault.c
> @@ -727,12 +727,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
>  
>  int handle_guest_sea(phys_addr_t addr, unsigned int esr)
>  {
> -	int ret = -ENOENT;
> -
> -	if (IS_ENABLED(CONFIG_ACPI_APEI_SEA))
> -		ret = ghes_notify_sea();
> -
> -	return ret;
> +	return ghes_notify_sea();
>  }
>  
>  asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,
> diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
> index 1624e2b..82cb4eb 100644
> --- a/include/acpi/ghes.h
> +++ b/include/acpi/ghes.h
> @@ -118,6 +118,10 @@ static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
>  	     (void *)section - (void *)(estatus + 1) < estatus->data_length; \
>  	     section = acpi_hest_get_next(section))
>  
> +#ifdef CONFIG_ACPI_APEI_SEA
>  int ghes_notify_sea(void);
> +#else
> +static inline int ghes_notify_sea(void) { return -ENOENT; }
> +#endif
>  
>  #endif /* GHES_H */
> -- 
> 1.9.1
> 

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] arm64: clean the additional checks before calling ghes_notify_sea()
  2018-07-27 10:06 ` Will Deacon
@ 2018-08-05  2:35   ` gengdongjiu
  2018-08-06 14:26     ` Will Deacon
  0 siblings, 1 reply; 6+ messages in thread
From: gengdongjiu @ 2018-08-05  2:35 UTC (permalink / raw)
  To: Will Deacon
  Cc: Dongjiu Geng, Catalin Marinas, mark.rutland, Len Brown,
	rafael.j.wysocki, erik.schmauss, robert.moore, arm-mail-list,
	Linux Kernel Mailing List, linux-acpi, devel

2018-07-27 18:06 GMT+08:00 Will Deacon <will.deacon@arm.com>:
> On Thu, Jul 26, 2018 at 05:01:47PM -0400, Dongjiu Geng wrote:
>> In order to remove the additional check before calling the
>> ghes_notify_sea(), make stub definition when !CONFIG_ACPI_APEI_SEA.
>>
>> Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
>> ---
>
> Acked-by: Will Deacon <will.deacon@arm.com>

Will,
     This patch will be applied, right? thanks

>
> Will
>
>> This cleanup is ever mentioned by Mark Rutland in [1]
>>
>> [1]:
>> https://lkml.org/lkml/2018/5/31/289
>> ---
>>  arch/arm64/mm/fault.c | 7 +------
>>  include/acpi/ghes.h   | 4 ++++
>>  2 files changed, 5 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
>> index b8eecc7..9ffe01d 100644
>> --- a/arch/arm64/mm/fault.c
>> +++ b/arch/arm64/mm/fault.c
>> @@ -727,12 +727,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
>>
>>  int handle_guest_sea(phys_addr_t addr, unsigned int esr)
>>  {
>> -     int ret = -ENOENT;
>> -
>> -     if (IS_ENABLED(CONFIG_ACPI_APEI_SEA))
>> -             ret = ghes_notify_sea();
>> -
>> -     return ret;
>> +     return ghes_notify_sea();
>>  }
>>
>>  asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,
>> diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
>> index 1624e2b..82cb4eb 100644
>> --- a/include/acpi/ghes.h
>> +++ b/include/acpi/ghes.h
>> @@ -118,6 +118,10 @@ static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
>>            (void *)section - (void *)(estatus + 1) < estatus->data_length; \
>>            section = acpi_hest_get_next(section))
>>
>> +#ifdef CONFIG_ACPI_APEI_SEA
>>  int ghes_notify_sea(void);
>> +#else
>> +static inline int ghes_notify_sea(void) { return -ENOENT; }
>> +#endif
>>
>>  #endif /* GHES_H */
>> --
>> 1.9.1
>>

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] arm64: clean the additional checks before calling ghes_notify_sea()
  2018-08-05  2:35   ` gengdongjiu
@ 2018-08-06 14:26     ` Will Deacon
  2018-08-07  6:37       ` gengdongjiu
  0 siblings, 1 reply; 6+ messages in thread
From: Will Deacon @ 2018-08-06 14:26 UTC (permalink / raw)
  To: gengdongjiu
  Cc: Dongjiu Geng, Catalin Marinas, mark.rutland, Len Brown,
	rafael.j.wysocki, erik.schmauss, robert.moore, arm-mail-list,
	Linux Kernel Mailing List, linux-acpi, devel

On Sun, Aug 05, 2018 at 10:35:03AM +0800, gengdongjiu wrote:
> 2018-07-27 18:06 GMT+08:00 Will Deacon <will.deacon@arm.com>:
> > On Thu, Jul 26, 2018 at 05:01:47PM -0400, Dongjiu Geng wrote:
> >> In order to remove the additional check before calling the
> >> ghes_notify_sea(), make stub definition when !CONFIG_ACPI_APEI_SEA.
> >>
> >> Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
> >> ---
> >
> > Acked-by: Will Deacon <will.deacon@arm.com>
> 
> Will,
>      This patch will be applied, right? thanks

I haven't queued it in the arm64 tree, since it touches include/acpi/ghes.h
and you don't have an ack from the acpi folks. I acked it so that you could
route it via the acpi tree without me holding you up.

Will

> >> This cleanup is ever mentioned by Mark Rutland in [1]
> >>
> >> [1]:
> >> https://lkml.org/lkml/2018/5/31/289
> >> ---
> >>  arch/arm64/mm/fault.c | 7 +------
> >>  include/acpi/ghes.h   | 4 ++++
> >>  2 files changed, 5 insertions(+), 6 deletions(-)
> >>
> >> diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
> >> index b8eecc7..9ffe01d 100644
> >> --- a/arch/arm64/mm/fault.c
> >> +++ b/arch/arm64/mm/fault.c
> >> @@ -727,12 +727,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
> >>
> >>  int handle_guest_sea(phys_addr_t addr, unsigned int esr)
> >>  {
> >> -     int ret = -ENOENT;
> >> -
> >> -     if (IS_ENABLED(CONFIG_ACPI_APEI_SEA))
> >> -             ret = ghes_notify_sea();
> >> -
> >> -     return ret;
> >> +     return ghes_notify_sea();
> >>  }
> >>
> >>  asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,
> >> diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
> >> index 1624e2b..82cb4eb 100644
> >> --- a/include/acpi/ghes.h
> >> +++ b/include/acpi/ghes.h
> >> @@ -118,6 +118,10 @@ static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
> >>            (void *)section - (void *)(estatus + 1) < estatus->data_length; \
> >>            section = acpi_hest_get_next(section))
> >>
> >> +#ifdef CONFIG_ACPI_APEI_SEA
> >>  int ghes_notify_sea(void);
> >> +#else
> >> +static inline int ghes_notify_sea(void) { return -ENOENT; }
> >> +#endif
> >>
> >>  #endif /* GHES_H */
> >> --
> >> 1.9.1
> >>

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] arm64: clean the additional checks before calling ghes_notify_sea()
  2018-08-06 14:26     ` Will Deacon
@ 2018-08-07  6:37       ` gengdongjiu
  0 siblings, 0 replies; 6+ messages in thread
From: gengdongjiu @ 2018-08-07  6:37 UTC (permalink / raw)
  To: Will Deacon, gengdongjiu
  Cc: Catalin Marinas, mark.rutland, Len Brown, rafael.j.wysocki,
	erik.schmauss, robert.moore, arm-mail-list,
	Linux Kernel Mailing List, linux-acpi, devel



On 2018/8/6 22:26, Will Deacon wrote:
>> Will,
>>      This patch will be applied, right? thanks
> I haven't queued it in the arm64 tree, since it touches include/acpi/ghes.h
> and you don't have an ack from the acpi folks. I acked it so that you could
> route it via the acpi tree without me holding you up.

Thanks the explanation.
yes, this patch touches the "include/acpi/ghes.h", I will repost this patch to let acpi
folks review it.


> 
> Will
> 
>>>> This cleanup is ever mentioned by Mark Rutland in [1]


^ permalink raw reply	[flat|nested] 6+ messages in thread

* [PATCH] arm64: clean the additional checks before calling ghes_notify_sea()
@ 2018-07-26 21:01 Dongjiu Geng
  0 siblings, 0 replies; 6+ messages in thread
From: Dongjiu Geng @ 2018-07-26 21:01 UTC (permalink / raw)
  To: catalin.marinas, will.deacon, mark.rutland, lenb,
	rafael.j.wysocki, erik.schmauss, robert.moore, linux-arm-kernel,
	linux-kernel, linux-acpi, devel

In order to remove the additional check before calling the
ghes_notify_sea(), make stub definition when !CONFIG_ACPI_APEI_SEA.

Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---

This cleanup is ever mentioned by Mark Rutland in [1]

[1]:
https://lkml.org/lkml/2018/5/31/289
---
 arch/arm64/mm/fault.c | 7 +------
 include/acpi/ghes.h   | 4 ++++
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index b8eecc7..9ffe01d 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -727,12 +727,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
 
 int handle_guest_sea(phys_addr_t addr, unsigned int esr)
 {
-	int ret = -ENOENT;
-
-	if (IS_ENABLED(CONFIG_ACPI_APEI_SEA))
-		ret = ghes_notify_sea();
-
-	return ret;
+	return ghes_notify_sea();
 }
 
 asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,
diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 1624e2b..82cb4eb 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -118,6 +118,10 @@ static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
 	     (void *)section - (void *)(estatus + 1) < estatus->data_length; \
 	     section = acpi_hest_get_next(section))
 
+#ifdef CONFIG_ACPI_APEI_SEA
 int ghes_notify_sea(void);
+#else
+static inline int ghes_notify_sea(void) { return -ENOENT; }
+#endif
 
 #endif /* GHES_H */
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2018-08-07  6:37 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2018-07-26 21:01 [PATCH] arm64: clean the additional checks before calling ghes_notify_sea() Dongjiu Geng
2018-07-27 10:06 ` Will Deacon
2018-08-05  2:35   ` gengdongjiu
2018-08-06 14:26     ` Will Deacon
2018-08-07  6:37       ` gengdongjiu
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2018-07-26 21:01 Dongjiu Geng

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