linux-kernel - Re: [PATCH 1/6] RAS: ACPI: APEI: add conditional compilation to ARM error report functions

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Message-ID: <20240708144312.GDZov7AEzBDfSEGQEY@fat_crate.local>
Date: Mon, 8 Jul 2024 16:43:12 +0200
From: Borislav Petkov <bp@...en8.de>
To: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc: Tony Luck <tony.luck@...el.com>,
	Daniel Ferguson <danielf@...amperecomputing.com>,
	Ard Biesheuvel <ardb@...nel.org>, James Morse <james.morse@....com>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Len Brown <lenb@...nel.org>,
	"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>,
	Shuai Xue <xueshuai@...ux.alibaba.com>, linux-acpi@...r.kernel.org,
	linux-edac@...r.kernel.org, linux-efi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] RAS: ACPI: APEI: add conditional compilation to ARM
 error report functions

On Mon, Jul 08, 2024 at 02:10:25PM +0200, Mauro Carvalho Chehab wrote:
> This patch itself just add conditionals to optimize out code on
> non-ARM architectures. The next one will add some ARM-specific bits
> inside ARM processor CPER trace, thus causing compilation breakages
> on non-ARM, due to arm-specific kAPI bits that will be used then.

Are you sure?

I have both patches applied and then practically reverting the second one
builds an allmodconfig just fine.

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 90efca025d27..524fea3f4f76 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -532,7 +532,6 @@ static bool ghes_handle_arm_hw_error(struct acpi_hest_generic_data *gdata,
 				     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;
 	int sec_sev, i;
@@ -570,7 +569,6 @@ static bool ghes_handle_arm_hw_error(struct acpi_hest_generic_data *gdata,
 				    error_type);
 		p += err_info->length;
 	}
-#endif
 	return queued;
 }
 
diff --git a/drivers/ras/ras.c b/drivers/ras/ras.c
index 75acc09bc96a..359bb163aee0 100644
--- a/drivers/ras/ras.c
+++ b/drivers/ras/ras.c
@@ -54,7 +54,6 @@ 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, const u8 sev)
 {
-#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
 	struct cper_arm_err_info *err_info;
 	struct cper_arm_ctx_info *ctx_info;
 	u8 *ven_err_data;
@@ -97,7 +96,6 @@ void log_arm_hw_error(struct cper_sec_proc_arm *err, const u8 sev)
 
 	trace_arm_event(err, pei_err, pei_len, ctx_err, ctx_len,
 			ven_err_data, (u32)vsei_len, sev, cpu);
-#endif
 }
 
 static int __init ras_init(void)

-- 
Regards/Gruss,
    Boris.

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