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Message-ID: <a8b4b428f97fc584f38bf45100aa9da241aeb935.1719159074.git.christophe.jaillet@wanadoo.fr>
Date: Sun, 23 Jun 2024 18:11:31 +0200
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Nishanth Menon <nm@...com>,
Santosh Shilimkar <ssantosh@...nel.org>
Cc: linux-kernel@...r.kernel.org,
kernel-janitors@...r.kernel.org,
Christophe JAILLET <christophe.jaillet@...adoo.fr>,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] soc: ti: knav_qmss: Constify struct knav_range_ops
'struct knav_range_ops' is not modified in these drivers.
Constifying this structure moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
7498 1193 0 8691 21f3 drivers/soc/ti/knav_qmss_acc.o
After:
=====
text data bss dec hex filename
7566 1145 0 8711 2207 drivers/soc/ti/knav_qmss_acc.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
Compile tested-only
---
drivers/soc/ti/knav_qmss.h | 2 +-
drivers/soc/ti/knav_qmss_acc.c | 2 +-
drivers/soc/ti/knav_qmss_queue.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/soc/ti/knav_qmss.h b/drivers/soc/ti/knav_qmss.h
index a01eda720bf6..9325e8ce2e25 100644
--- a/drivers/soc/ti/knav_qmss.h
+++ b/drivers/soc/ti/knav_qmss.h
@@ -333,7 +333,7 @@ struct knav_range_info {
void *queue_base_inst;
unsigned flags;
struct list_head list;
- struct knav_range_ops *ops;
+ const struct knav_range_ops *ops;
struct knav_acc_info acc_info;
struct knav_acc_channel *acc;
unsigned num_irqs;
diff --git a/drivers/soc/ti/knav_qmss_acc.c b/drivers/soc/ti/knav_qmss_acc.c
index 3d388646ed43..269b4e75ae40 100644
--- a/drivers/soc/ti/knav_qmss_acc.c
+++ b/drivers/soc/ti/knav_qmss_acc.c
@@ -450,7 +450,7 @@ static int knav_acc_free_range(struct knav_range_info *range)
return 0;
}
-static struct knav_range_ops knav_acc_range_ops = {
+static const struct knav_range_ops knav_acc_range_ops = {
.set_notify = knav_acc_set_notify,
.init_queue = knav_acc_init_queue,
.open_queue = knav_acc_open_queue,
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 06fb5505c22c..f2055a76f84c 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -411,7 +411,7 @@ static int knav_gp_close_queue(struct knav_range_info *range,
return 0;
}
-static struct knav_range_ops knav_gp_range_ops = {
+static const struct knav_range_ops knav_gp_range_ops = {
.set_notify = knav_gp_set_notify,
.open_queue = knav_gp_open_queue,
.close_queue = knav_gp_close_queue,
--
2.45.2
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