thunderbolt: Use const buffer pointer in write operations
These functions should not (and do not) modify the argument in any way
so make it const.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Reviewed-by: Michael Jamet <michael.jamet@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 61d57ba..ba2b857 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -173,7 +173,7 @@ static inline int tb_port_read(struct tb_port *port, void *buffer,
length);
}
-static inline int tb_port_write(struct tb_port *port, void *buffer,
+static inline int tb_port_write(struct tb_port *port, const void *buffer,
enum tb_cfg_space space, u32 offset, u32 length)
{
return tb_cfg_write(port->sw->tb->ctl,
