linux-kernel - [PATCH 03/11] EDAC/ghes: Remove local variable rdr_mask in ghes_edac

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Date:   Fri,  6 Mar 2020 16:13:10 +0100
From:   Robert Richter <rrichter@...vell.com>
To:     Borislav Petkov <bp@...en8.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Tony Luck <tony.luck@...el.com>
CC:     James Morse <james.morse@....com>,
        Aristeu Rozanski <aris@...hat.com>,
        Robert Richter <rrichter@...vell.com>,
        <linux-edac@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 03/11] EDAC/ghes: Remove local variable rdr_mask in ghes_edac_dmidecode()

The local variable rdr_mask serves as a static constant here. It hides
what the code is doing. Remove it and replace it with the actual logic
that checks some bits.

Signed-off-by: Robert Richter <rrichter@...vell.com>
---
 drivers/edac/ghes_edac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c
index 07fa3867cba1..fce53893731a 100644
--- a/drivers/edac/ghes_edac.c
+++ b/drivers/edac/ghes_edac.c
@@ -123,7 +123,6 @@ static void ghes_edac_dmidecode(const struct dmi_header *dh, void *arg)
 	if (dh->type == DMI_ENTRY_MEM_DEVICE) {
 		struct memdev_dmi_entry *entry = (struct memdev_dmi_entry *)dh;
 		struct dimm_info *dimm = edac_get_dimm(mci, dimm_fill->count, 0, 0);
-		u16 rdr_mask = BIT(7) | BIT(13);
 
 		if (entry->size == 0xffff) {
 			pr_info("Can't get DIMM%i size\n",
@@ -173,7 +172,8 @@ static void ghes_edac_dmidecode(const struct dmi_header *dh, void *arg)
 		default:
 			if (entry->type_detail & BIT(6))
 				dimm->mtype = MEM_RMBS;
-			else if ((entry->type_detail & rdr_mask) == rdr_mask)
+			else if ((entry->type_detail & BIT(7)) &&
+				 (entry->type_detail & BIT(13)))
 				dimm->mtype = MEM_RDR;
 			else if (entry->type_detail & BIT(7))
 				dimm->mtype = MEM_SDR;
-- 
2.20.1