From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Mon, 1 Jul 2019 18:41:51 +0300
Subject: thunderbolt: Make tb_sw_write() take const parameter
Git-commit: 826c6a1773084c737abf09dccc591f9a59b8b812
Patch-mainline: v5.5-rc1
References: jsc#SLE-14130

The function does not modify the argument in any way so make it const.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
 drivers/thunderbolt/tb.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 1565af2e48cb..455ca490ea87 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -399,7 +399,7 @@ static inline int tb_sw_read(struct tb_switch *sw, void *buffer,
 			   length);
 }
 
-static inline int tb_sw_write(struct tb_switch *sw, void *buffer,
+static inline int tb_sw_write(struct tb_switch *sw, const void *buffer,
 			      enum tb_cfg_space space, u32 offset, u32 length)
 {
 	if (sw->is_unplugged)