linux-kernel - [PATCH] thunderbolt: make tb_domain

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Date:   Sat, 30 Sep 2017 22:07:12 +0530
From:   Bhumika Goyal <bhumirks@...il.com>
To:     julia.lawall@...6.fr, andreas.noever@...il.com,
        michael.jamet@...el.com, mika.westerberg@...ux.intel.com,
        yehezkel.bernat@...el.com, linux-kernel@...r.kernel.org
Cc:     Bhumika Goyal <bhumirks@...il.com>
Subject: [PATCH] thunderbolt: make tb_domain_type const

Make this const as it is only stored in the const field of a device
structure. Make the declaration in header const too.

Structure found using Coccinelle and changes done by hand.

Signed-off-by: Bhumika Goyal <bhumirks@...il.com>
---
 drivers/thunderbolt/domain.c | 2 +-
 drivers/thunderbolt/tb.h     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c
index 9f2dcd4..f8b11a3 100644
--- a/drivers/thunderbolt/domain.c
+++ b/drivers/thunderbolt/domain.c
@@ -65,7 +65,7 @@ static void tb_domain_release(struct device *dev)
 	kfree(tb);
 }
 
-struct device_type tb_domain_type = {
+const struct device_type tb_domain_type = {
 	.name = "thunderbolt_domain",
 	.release = tb_domain_release,
 };
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index e0deee4..fa65049 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -369,7 +369,7 @@ static inline int tb_port_write(struct tb_port *port, const void *buffer,
 struct tb *tb_probe(struct tb_nhi *nhi);
 
 extern struct bus_type tb_bus_type;
-extern struct device_type tb_domain_type;
+extern const struct device_type tb_domain_type;
 extern struct device_type tb_switch_type;
 
 int tb_domain_init(void);
-- 
1.9.1