linux-kernel - [PATCH 2/4] perf/imx_ddr: Constify static struct attribute

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Date:   Sun, 17 Jan 2021 22:28:45 +0100
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
        Frank Li <Frank.li@....com>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>
Cc:     Shaokun Zhang <zhangshaokun@...ilicon.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH 2/4] perf/imx_ddr: Constify static struct attribute_group

The only usage is to put their addresses in an array of pointers to
const struct attribute group. Make them const to allow the compiler
to put them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 drivers/perf/fsl_imx8_ddr_perf.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index a11bfd8a0823..be1f26b62ddb 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -133,7 +133,7 @@ static struct attribute *ddr_perf_identifier_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group ddr_perf_identifier_attr_group = {
+static const struct attribute_group ddr_perf_identifier_attr_group = {
 	.attrs = ddr_perf_identifier_attrs,
 	.is_visible = ddr_perf_identifier_attr_visible,
 };
@@ -188,7 +188,7 @@ static struct attribute *ddr_perf_filter_cap_attr[] = {
 	NULL,
 };
 
-static struct attribute_group ddr_perf_filter_cap_attr_group = {
+static const struct attribute_group ddr_perf_filter_cap_attr_group = {
 	.name = "caps",
 	.attrs = ddr_perf_filter_cap_attr,
 };
@@ -209,7 +209,7 @@ static struct attribute *ddr_perf_cpumask_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group ddr_perf_cpumask_attr_group = {
+static const struct attribute_group ddr_perf_cpumask_attr_group = {
 	.attrs = ddr_perf_cpumask_attrs,
 };
 
@@ -265,7 +265,7 @@ static struct attribute *ddr_perf_events_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group ddr_perf_events_attr_group = {
+static const struct attribute_group ddr_perf_events_attr_group = {
 	.name = "events",
 	.attrs = ddr_perf_events_attrs,
 };
@@ -281,7 +281,7 @@ static struct attribute *ddr_perf_format_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group ddr_perf_format_attr_group = {
+static const struct attribute_group ddr_perf_format_attr_group = {
 	.name = "format",
 	.attrs = ddr_perf_format_attrs,
 };
-- 
2.30.0