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Message-ID: <3c7d455745c2265c19ed02f026dfc9610271d3c2.1725692376.git.christophe.jaillet@wanadoo.fr>
Date: Sat, 7 Sep 2024 09:00:04 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Avi Fishman <avifishman70@...il.com>,
Tomer Maimon <tmaimon77@...il.com>,
Tali Perry <tali.perry1@...il.com>,
Patrick Venture <venture@...gle.com>,
Nancy Yuen <yuenn@...gle.com>,
Benjamin Fair <benjaminfair@...gle.com>,
Iwona Winiarska <iwona.winiarska@...el.com>
Cc: linux-kernel@...r.kernel.org,
kernel-janitors@...r.kernel.org,
Christophe JAILLET <christophe.jaillet@...adoo.fr>,
openbmc@...ts.ozlabs.org
Subject: [PATCH] peci: npcm: Constify struct peci_controller_ops
'struct peci_controller_ops' is not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increase overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
8003 784 48 8835 2283 drivers/peci/controller/peci-npcm.o
After:
=====
text data bss dec hex filename
8003 776 48 8827 227b drivers/peci/controller/peci-npcm.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
Compile tested only
---
drivers/peci/controller/peci-npcm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/peci/controller/peci-npcm.c b/drivers/peci/controller/peci-npcm.c
index ec613d35c796..fa91be58f6f3 100644
--- a/drivers/peci/controller/peci-npcm.c
+++ b/drivers/peci/controller/peci-npcm.c
@@ -224,7 +224,7 @@ static const struct regmap_config npcm_peci_regmap_config = {
.fast_io = true,
};
-static struct peci_controller_ops npcm_ops = {
+static const struct peci_controller_ops npcm_ops = {
.xfer = npcm_peci_xfer,
};
--
2.46.0
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