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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-02-19 11:39:34 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2019-04-18 11:18:52 +0300 |
| commit | 56183c88f368eef7134c32df826792ee140f2864 (patch) | |
| tree | 366f801681636db72181ee1fdbd10a9cdbbd1c22 /drivers/thunderbolt/tunnel_pci.c | |
| parent | 4944269305df09c719f9c406c20c255f1724542a (diff) | |
| download | linux-56183c88f368eef7134c32df826792ee140f2864.tar.xz | |
thunderbolt: Cache adapter specific capability offset into struct port
The adapter specific capability either is there or not if the port does
not hold an adapter. Instead of always finding it on-demand we read the
offset just once when the port is initialized.
While there we update the struct port documentation to follow kernel-doc
format.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/tunnel_pci.c')
| -rw-r--r-- | drivers/thunderbolt/tunnel_pci.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/thunderbolt/tunnel_pci.c b/drivers/thunderbolt/tunnel_pci.c index 0637537ea53f..2de4edccbd6d 100644 --- a/drivers/thunderbolt/tunnel_pci.c +++ b/drivers/thunderbolt/tunnel_pci.c @@ -148,12 +148,9 @@ bool tb_pci_is_invalid(struct tb_pci_tunnel *tunnel) static int tb_pci_port_active(struct tb_port *port, bool active) { u32 word = active ? 0x80000000 : 0x0; - int cap = tb_port_find_cap(port, TB_PORT_CAP_ADAP); - if (cap < 0) { - tb_port_warn(port, "TB_PORT_CAP_ADAP not found: %d\n", cap); - return cap; - } - return tb_port_write(port, &word, TB_CFG_PORT, cap, 1); + if (!port->cap_adap) + return -ENXIO; + return tb_port_write(port, &word, TB_CFG_PORT, port->cap_adap, 1); } /** |