linux-kernel - [PATCH] firmware: add const to bin

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Message-Id: <1501663295-18774-1-git-send-email-bhumirks@gmail.com>
Date:   Wed,  2 Aug 2017 14:11:35 +0530
From:   Bhumika Goyal <bhumirks@...il.com>
To:     julia.lawall@...6.fr, somlo@....edu, mst@...hat.com,
        linux-kernel@...r.kernel.org, qemu-devel@...gnu.org
Cc:     Bhumika Goyal <bhumirks@...il.com>
Subject: [PATCH] firmware: add const to bin_attribute structures

Add const to bin_attribute structures as they are only passed to the
functions sysfs_{remove/create}_bin_file. The arguments passed are of
type const, so declare the structures to be const.

Done using Coccinelle.

@m disable optional_qualifier@
identifier s;
position p;
@@
static struct bin_attribute s@......};

@okay1@
position p;
identifier m.s;
@@
(
sysfs_create_bin_file(...,&s@p,...)
|
sysfs_remove_bin_file(...,&s@p,...)
)

@bad@
position p!={m.p,okay1.p};
identifier m.s;
@@
s@p

@change depends on !bad disable optional_qualifier@
identifier m.s;
@@
static
+const
struct bin_attribute s={...};

Signed-off-by: Bhumika Goyal <bhumirks@...il.com>
---
 drivers/firmware/dell_rbu.c          | 6 +++---
 drivers/firmware/dmi-sysfs.c         | 2 +-
 drivers/firmware/google/gsmi.c       | 2 +-
 drivers/firmware/google/memconsole.c | 2 +-
 drivers/firmware/qemu_fw_cfg.c       | 2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/firmware/dell_rbu.c b/drivers/firmware/dell_rbu.c
index 2f452f1..a771360 100644
--- a/drivers/firmware/dell_rbu.c
+++ b/drivers/firmware/dell_rbu.c
@@ -675,18 +675,18 @@ static ssize_t write_rbu_packet_size(struct file *filp, struct kobject *kobj,
 	return count;
 }
 
-static struct bin_attribute rbu_data_attr = {
+static const struct bin_attribute rbu_data_attr = {
 	.attr = {.name = "data", .mode = 0444},
 	.read = read_rbu_data,
 };
 
-static struct bin_attribute rbu_image_type_attr = {
+static const struct bin_attribute rbu_image_type_attr = {
 	.attr = {.name = "image_type", .mode = 0644},
 	.read = read_rbu_image_type,
 	.write = write_rbu_image_type,
 };
 
-static struct bin_attribute rbu_packet_size_attr = {
+static const struct bin_attribute rbu_packet_size_attr = {
 	.attr = {.name = "packet_size", .mode = 0644},
 	.read = read_rbu_packet_size,
 	.write = write_rbu_packet_size,
diff --git a/drivers/firmware/dmi-sysfs.c b/drivers/firmware/dmi-sysfs.c
index d5de6ee..936e656 100644
--- a/drivers/firmware/dmi-sysfs.c
+++ b/drivers/firmware/dmi-sysfs.c
@@ -440,7 +440,7 @@ static ssize_t dmi_sel_raw_read(struct file *filp, struct kobject *kobj,
 	return find_dmi_entry(entry, dmi_sel_raw_read_helper, &state);
 }
 
-static struct bin_attribute dmi_sel_raw_attr = {
+static const struct bin_attribute dmi_sel_raw_attr = {
 	.attr = {.name = "raw_event_log", .mode = 0400},
 	.read = dmi_sel_raw_read,
 };
diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
index c8f169b..1ad29f7 100644
--- a/drivers/firmware/google/gsmi.c
+++ b/drivers/firmware/google/gsmi.c
@@ -508,7 +508,7 @@ static ssize_t eventlog_write(struct file *filp, struct kobject *kobj,
 
 }
 
-static struct bin_attribute eventlog_bin_attr = {
+static const struct bin_attribute eventlog_bin_attr = {
 	.attr = {.name = "append_to_eventlog", .mode = 0200},
 	.write = eventlog_write,
 };
diff --git a/drivers/firmware/google/memconsole.c b/drivers/firmware/google/memconsole.c
index 166f07c..b11a02c 100644
--- a/drivers/firmware/google/memconsole.c
+++ b/drivers/firmware/google/memconsole.c
@@ -33,7 +33,7 @@ static ssize_t memconsole_read(struct file *filp, struct kobject *kobp,
 	return memconsole_read_func(buf, pos, count);
 }
 
-static struct bin_attribute memconsole_bin_attr = {
+static const struct bin_attribute memconsole_bin_attr = {
 	.attr = {.name = "log", .mode = 0444},
 	.read = memconsole_read,
 };
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index 0e20116..f254977 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -343,7 +343,7 @@ static ssize_t fw_cfg_sysfs_read_raw(struct file *filp, struct kobject *kobj,
 	return count;
 }
 
-static struct bin_attribute fw_cfg_sysfs_attr_raw = {
+static const struct bin_attribute fw_cfg_sysfs_attr_raw = {
 	.attr = { .name = "raw", .mode = S_IRUSR },
 	.read = fw_cfg_sysfs_read_raw,
 };
-- 
1.9.1