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| author |   Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-06-06 15:25:08 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-09 11:42:42 +0200 |
| commit | 05c242e9e47d210ed6cbef31f2c441fa6ee325c6 (patch) | |
| tree | cba31cc1c745b6f363c3a1cefca3bf90d0e93cec /drivers/thunderbolt/ctl.h | |
| parent | thunderbolt: Expose get_route() to other files (diff) | |
| download | linux-dev-05c242e9e47d210ed6cbef31f2c441fa6ee325c6.tar.xz linux-dev-05c242e9e47d210ed6cbef31f2c441fa6ee325c6.zip | |
thunderbolt: Expose make_header() to other files
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>
Diffstat (limited to 'drivers/thunderbolt/ctl.h')
| -rw-r--r-- | drivers/thunderbolt/ctl.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/thunderbolt/ctl.h b/drivers/thunderbolt/ctl.h index 9812b1c86d4f..914da86ec77d 100644 --- a/drivers/thunderbolt/ctl.h +++ b/drivers/thunderbolt/ctl.h @@ -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, |