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thunderbolt: Expose make_header() to other files

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We will be using this function in files introduced in subsequent
patches. While there the function is renamed to tb_cfg_make_header()
following tb_cfg_get_route().

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>
Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mika Westerberg
2017-06-06 15:25:08 +03:00
committed by Greg Kroah-Hartman
parent ac6c44de50
commit 05c242e9e4
2 changed files with 15 additions and 15 deletions
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11
drivers/thunderbolt/ctl.h
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@@ -43,6 +43,17 @@ static inline u64 tb_cfg_get_route(const struct tb_cfg_header *header)
return (u64) header->route_hi << 32 | header->route_lo;
}
static inline struct tb_cfg_header tb_cfg_make_header(u64 route)
{
struct tb_cfg_header header = {
.route_hi = route >> 32,
.route_lo = route,
};
/* check for overflow, route_hi is not 32 bits! */
WARN_ON(tb_cfg_get_route(&header) != route);
return header;
}
int tb_cfg_error(struct tb_ctl *ctl, u64 route, u32 port,
enum tb_cfg_error error);
struct tb_cfg_result tb_cfg_reset(struct tb_ctl *ctl, u64 route,