linux-kernel - [PATCH] ACPI / APEI: Add is_ghes_type() to identify GHES sources

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Date:   Fri, 22 Jan 2021 12:03:22 -0600
From:   Terry Bowman <terry.bowman@....com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     rjw@...ysocki.net, lenb@...nel.org, james.morse@....com,
        tony.luck@...el.com, bp@...en8.de, yazen.ghannam@....com,
        terry.bowman@....com, guohanjun@...wei.com,
        colin.king@...onical.com, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org, jon.grimm@....com
Subject: [PATCH] ACPI / APEI: Add is_ghes_type() to identify GHES sources

From: Yazen Ghannam <yazen.ghannam@....com>

Refactor duplicated GHES identity logic into is_ghes_type().

Signed-off-by: Yazen Ghannam <yazen.ghannam@....com>
Reviewed-by: Robert Richter <rrichter@....com>
Signed-off-by: Terry Bowman <terry.bowman@....com>
---
 drivers/acpi/apei/hest.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c
index 6e980fe16772..bd702e0ef339 100644
--- a/drivers/acpi/apei/hest.c
+++ b/drivers/acpi/apei/hest.c
@@ -49,6 +49,12 @@ static const int hest_esrc_len_tab[ACPI_HEST_TYPE_RESERVED] = {
 	[ACPI_HEST_TYPE_IA32_DEFERRED_CHECK] = -1,
 };
 
+static inline bool is_ghes_type(struct acpi_hest_header *hest_hdr)
+{
+	return hest_hdr->type == ACPI_HEST_TYPE_GENERIC_ERROR ||
+	       hest_hdr->type == ACPI_HEST_TYPE_GENERIC_ERROR_V2;
+}
+
 static int hest_esrc_len(struct acpi_hest_header *hest_hdr)
 {
 	u16 hest_type = hest_hdr->type;
@@ -141,8 +147,7 @@ static int __init hest_parse_ghes_count(struct acpi_hest_header *hest_hdr, void
 {
 	int *count = data;
 
-	if (hest_hdr->type == ACPI_HEST_TYPE_GENERIC_ERROR ||
-	    hest_hdr->type == ACPI_HEST_TYPE_GENERIC_ERROR_V2)
+	if (is_ghes_type(hest_hdr))
 		(*count)++;
 	return 0;
 }
@@ -153,8 +158,7 @@ static int __init hest_parse_ghes(struct acpi_hest_header *hest_hdr, void *data)
 	struct ghes_arr *ghes_arr = data;
 	int rc, i;
 
-	if (hest_hdr->type != ACPI_HEST_TYPE_GENERIC_ERROR &&
-	    hest_hdr->type != ACPI_HEST_TYPE_GENERIC_ERROR_V2)
+	if (!is_ghes_type(hest_hdr))
 		return 0;
 
 	if (!((struct acpi_hest_generic *)hest_hdr)->enabled)
-- 
2.27.0