Commit 8ad266d1 authored by Saravana Kannan's avatar Saravana Kannan Committed by Greg Kroah-Hartman
Browse files

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: default avatarSaravana Kannan <saravanak@google.com>
Reviewed-by: default avatarDouglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20230317205134.964098-1-saravanak@google.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 517d4927

drivers/base/Kconfig

+12 −0
Original line number Diff line number Diff line
@@ -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

drivers/base/core.c

+5 −0
Original line number Diff line number Diff line
@@ -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)