linux-kernel - [PATCH v4 11/24] EDAC/amd64: Skip denormalization if no interleaving

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Date:   Thu, 27 Jan 2022 20:41:02 +0000
From:   Yazen Ghannam <yazen.ghannam@....com>
To:     <linux-edac@...r.kernel.org>
CC:     <linux-kernel@...r.kernel.org>, <bp@...en8.de>,
        <mchehab@...nel.org>, <tony.luck@...el.com>, <james.morse@....com>,
        <rric@...nel.org>, <Smita.KoralahalliChannabasappa@....com>,
        Yazen Ghannam <yazen.ghannam@....com>
Subject: [PATCH v4 11/24] EDAC/amd64: Skip denormalization if no interleaving

Denormalization doesn't apply to the "no interleaving" mode, so return
early without error in this case.

Signed-off-by: Yazen Ghannam <yazen.ghannam@....com>
---
Link:
https://lore.kernel.org/r/20211028175728.121452-17-yazen.ghannam@amd.com

v3->v4:
* No change.

v2->v3:
* Was patch 17 in v2.

v1->v2:
* Moved from arch/x86 to EDAC.

 drivers/edac/amd64_edac.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 53d9c4b1c233..b75311acbe13 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1203,6 +1203,10 @@ static int denormalize_addr(struct addr_ctx *ctx)
 	u8 intlv_num_dies, intlv_num_chan, intlv_num_sockets;
 	u8 num_intlv_bits, cs_mask = 0;
 
+	/* Return early if no interleaving. */
+	if (ctx->intlv_mode == NONE)
+		return 0;
+
 	if (get_intlv_addr_bit(ctx))
 		return -EINVAL;
 
-- 
2.25.1