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| author | Saravana Kannan <saravanak@google.com> | 2023-03-17 13:51:33 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-28 18:45:59 +0200 |
| commit | 8ad266d133b005e88953b08d988fac86f74a0665 (patch) | |
| tree | 7247643e7dfc9fde59d419def1a0a31de98afcad /drivers | |
| parent | 517d4927aabe488144863e72b52bb3e506fecd34 (diff) | |
| download | lwn-8ad266d133b005e88953b08d988fac86f74a0665.tar.gz lwn-8ad266d133b005e88953b08d988fac86f74a0665.zip | |
driver core: Add CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT
Add a build time equivalent of fw_devlink.sync_state=timeout so that
board specific kernels could enable it and not have to deal with setting
or cluttering the kernel commandline.
Cc: Doug Anderson <dianders@chromium.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20230317205134.964098-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/base/core.c | 5 |
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index 6f04b831a5c0..2b8fd6bb7da0 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -230,4 +230,16 @@ config GENERIC_ARCH_NUMA Enable support for generic NUMA implementation. Currently, RISC-V and ARM64 use it. +config FW_DEVLINK_SYNC_STATE_TIMEOUT + bool "sync_state() behavior defaults to timeout instead of strict" + help + This is build time equivalent of adding kernel command line parameter + "fw_devlink.sync_state=timeout". Give up waiting on consumers and + call sync_state() on any devices that haven't yet received their + sync_state() calls after deferred_probe_timeout has expired or by + late_initcall() if !CONFIG_MODULES. You should almost always want to + select N here unless you have already successfully tested with the + command line option on every system/board your kernel is expected to + work on. + endmenu diff --git a/drivers/base/core.c b/drivers/base/core.c index b59692a4d809..89249be22161 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1671,7 +1671,12 @@ early_param("fw_devlink.strict", fw_devlink_strict_setup); #define FW_DEVLINK_SYNC_STATE_STRICT 0 #define FW_DEVLINK_SYNC_STATE_TIMEOUT 1 +#ifndef CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT static int fw_devlink_sync_state; +#else +static int fw_devlink_sync_state = FW_DEVLINK_SYNC_STATE_TIMEOUT; +#endif + static int __init fw_devlink_sync_state_setup(char *arg) { if (!arg) |