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| author | Saravana Kannan <saravanak@google.com> | 2020-05-14 22:34:59 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-15 16:34:52 +0200 |
| commit | 716a7a25969003d82ab738179c3f1068a120ed11 (patch) | |
| tree | 797f2e264d46d265342ff14319fe5b496a223fd3 /drivers/base/dd.c | |
| parent | 5f5377eaddfc24e5d7562e588d0ff84f9264d7c1 (diff) | |
| download | linux-rt-716a7a25969003d82ab738179c3f1068a120ed11.tar.gz | |
driver core: fw_devlink: Add support for batching fwnode parsing
The amount of time spent parsing fwnodes of devices can become really
high if the devices are added in an non-ideal order. Worst case can be
O(N^2) when N devices are added. But this can be optimized to O(N) by
adding all the devices and then parsing all their fwnodes in one batch.
This commit adds fw_devlink_pause() and fw_devlink_resume() to allow
doing this.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20200515053500.215929-4-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/dd.c')
| -rw-r--r-- | drivers/base/dd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 48ca81cb8ebc..63991d97adcc 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -164,6 +164,14 @@ static void driver_deferred_probe_trigger(void) if (!driver_deferred_probe_enable) return; + driver_deferred_probe_force_trigger(); +} + +void driver_deferred_probe_force_trigger(void) +{ + if (!driver_deferred_probe_enable) + return; + /* * A successful probe means that all the devices in the pending list * should be triggered to be reprobed. Move all the deferred devices |