linux-kernel - Re: [PATCH v2 1/2] RAS: ACPI: APEI: add conditional compilation to ARM error report functions

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Date: Mon, 1 Jul 2024 15:14:17 +0100
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
CC: Borislav Petkov <bp@...en8.de>, Daniel Ferguson
	<danielf@...amperecomputing.com>, "Rafael J. Wysocki" <rafael@...nel.org>,
	Shiju Jose <shiju.jose@...wei.com>, Uwe Kleine-König
	<u.kleine-koenig@...gutronix.de>, Dan Williams <dan.j.williams@...el.com>,
	Dave Jiang <dave.jiang@...el.com>, Ira Weiny <ira.weiny@...el.com>, "James
 Morse" <james.morse@....com>, Len Brown <lenb@...nel.org>, Shengwei Luo
	<luoshengwei@...wei.com>, Shuai Xue <xueshuai@...ux.alibaba.com>, Tony Luck
	<tony.luck@...el.com>, <linux-acpi@...r.kernel.org>,
	<linux-edac@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] RAS: ACPI: APEI: add conditional compilation to
 ARM error report functions

On Thu, 27 Jun 2024 12:36:07 +0200
Mauro Carvalho Chehab <mchehab+huawei@...nel.org> wrote:

> From: Daniel Ferguson <danielf@...amperecomputing.com>
> 
> This prevents the unnecessary inclusion of ARM specific RAS error
> handling routines in non-ARM platforms.
> 
> [mchehab: avoid unneeded ifdefs and fix coding style issues]
> Signed-off-by: Daniel Ferguson <danielf@...amperecomputing.com>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>

With my grumpy hat on this is 2 types of change, so ideally split into
1) ifdef stuff
2) white space / linebreaks tidying up.

Content is fine,

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>

> ---
>  drivers/acpi/apei/ghes.c | 13 ++++++-------
>  drivers/ras/ras.c        |  2 ++
>  2 files changed, 8 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
> index 623cc0cb4a65..2589a3536d91 100644
> --- a/drivers/acpi/apei/ghes.c
> +++ b/drivers/acpi/apei/ghes.c
> @@ -529,11 +529,12 @@ static bool ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata,
>  }
>  
>  static bool ghes_handle_arm_hw_error(struct acpi_hest_generic_data *gdata,
> -				       int sev, bool sync)
> +				     int sev, bool sync)
>  {
> +	bool queued = false;
> +#if defined(CONFIG_ARM) || defined (CONFIG_ARM64)
>  	struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);
>  	int flags = sync ? MF_ACTION_REQUIRED : 0;
> -	bool queued = false;
>  	int sec_sev, i;
>  	char *p;
>  
> @@ -570,7 +571,7 @@ static bool ghes_handle_arm_hw_error(struct acpi_hest_generic_data *gdata,
>  				    error_type);
>  		p += err_info->length;
>  	}
> -
> +#endif
>  	return queued;
>  }
>  
> @@ -773,11 +774,9 @@ static bool ghes_do_proc(struct ghes *ghes,
>  
>  			arch_apei_report_mem_error(sev, mem_err);
>  			queued = ghes_handle_memory_failure(gdata, sev, sync);
> -		}
> -		else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {
> +		} else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {
>  			ghes_handle_aer(gdata);
> -		}
> -		else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
> +		} else if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
>  			queued = ghes_handle_arm_hw_error(gdata, sev, sync);
>  		} else if (guid_equal(sec_type, &CPER_SEC_CXL_GEN_MEDIA_GUID)) {
>  			struct cxl_cper_event_rec *rec = acpi_hest_get_payload(gdata);
> diff --git a/drivers/ras/ras.c b/drivers/ras/ras.c
> index a6e4792a1b2e..5d94ab79c8c3 100644
> --- a/drivers/ras/ras.c
> +++ b/drivers/ras/ras.c
> @@ -54,7 +54,9 @@ void log_non_standard_event(const guid_t *sec_type, const guid_t *fru_id,
>  
>  void log_arm_hw_error(struct cper_sec_proc_arm *err)
>  {
> +#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
>  	trace_arm_event(err);
> +#endif
>  }
>  
>  static int __init ras_init(void)