From: Mika Westerberg Date: Sun, 3 Sep 2023 05:25:39 +0000 (+0300) Subject: thunderbolt: Introduce tb_for_each_upstream_port_on_path() X-Git-Tag: block-6.7-2023-11-10~25^2~11^2~4 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=956c3abe72fb6a651b8cf77c28462f7e5b6a48b1;p=linux-block.git thunderbolt: Introduce tb_for_each_upstream_port_on_path() This is useful when walking over upstream lane adapters over given path. Signed-off-by: Mika Westerberg --- diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 6d49510eea09..869ac360e1b5 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -1073,6 +1073,21 @@ static inline bool tb_port_use_credit_allocation(const struct tb_port *port) for ((p) = tb_next_port_on_path((src), (dst), NULL); (p); \ (p) = tb_next_port_on_path((src), (dst), (p))) +/** + * tb_for_each_upstream_port_on_path() - Iterate over each upstreamm port on path + * @src: Source port + * @dst: Destination port + * @p: Port used as iterator + * + * Walks over each upstream lane adapter on path from @src to @dst. + */ +#define tb_for_each_upstream_port_on_path(src, dst, p) \ + for ((p) = tb_next_port_on_path((src), (dst), NULL); (p); \ + (p) = tb_next_port_on_path((src), (dst), (p))) \ + if (!tb_port_is_null((p)) || !tb_is_upstream_port((p))) {\ + continue; \ + } else + int tb_port_get_link_speed(struct tb_port *port); int tb_port_get_link_generation(struct tb_port *port); int tb_port_get_link_width(struct tb_port *port);