6.6-stable review patch. If anyone has any objections, please let me know.
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From: Sanath S Sanath.S@amd.com
commit b35c1d7b11da8c08b14147bbe87c2c92f7a83f8b upstream.
This function can be used to clear path config space of an adapter. Make it available for other files in this driver.
Signed-off-by: Sanath S Sanath.S@amd.com Signed-off-by: Mika Westerberg mika.westerberg@linux.intel.com Cc: Mario Limonciello mario.limonciello@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/thunderbolt/path.c | 13 +++++++++++++ drivers/thunderbolt/tb.h | 1 + 2 files changed, 14 insertions(+)
--- a/drivers/thunderbolt/path.c +++ b/drivers/thunderbolt/path.c @@ -446,6 +446,19 @@ static int __tb_path_deactivate_hop(stru return -ETIMEDOUT; }
+/** + * tb_path_deactivate_hop() - Deactivate one path in path config space + * @port: Lane or protocol adapter + * @hop_index: HopID of the path to be cleared + * + * This deactivates or clears a single path config space entry at + * @hop_index. Returns %0 in success and negative errno otherwise. + */ +int tb_path_deactivate_hop(struct tb_port *port, int hop_index) +{ + return __tb_path_deactivate_hop(port, hop_index, true); +} + static void __tb_path_deactivate_hops(struct tb_path *path, int first_hop) { int i, res; --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -1100,6 +1100,7 @@ struct tb_path *tb_path_alloc(struct tb void tb_path_free(struct tb_path *path); int tb_path_activate(struct tb_path *path); void tb_path_deactivate(struct tb_path *path); +int tb_path_deactivate_hop(struct tb_port *port, int hop_index); bool tb_path_is_invalid(struct tb_path *path); bool tb_path_port_on_path(const struct tb_path *path, const struct tb_port *port);