diff options
| author | Saravana Kannan <saravanak@google.com> | 2021-02-05 14:26:39 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-09 14:31:06 +0100 |
| commit | 19d0f5f6bff878277783fd98fef4ae2441d6a1d8 (patch) | |
| tree | e866cd2ca0df5ead38fdbbc6ec6188755cc33218 /drivers/base | |
| parent | 1753c4d1edbcf1b35e585ff76777d09434344c8f (diff) | |
| download | linux-19d0f5f6bff878277783fd98fef4ae2441d6a1d8.tar.gz | |
driver core: Add fw_devlink.strict kernel param
This param allows forcing all dependencies to be treated as mandatory.
This will be useful for boards in which all optional dependencies like
IOMMUs and DMAs need to be treated as mandatory dependencies.
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210205222644.2357303-4-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/core.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index c95b1daabac7..f466ab4f1c35 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1521,6 +1521,13 @@ static int __init fw_devlink_setup(char *arg) } early_param("fw_devlink", fw_devlink_setup); +static bool fw_devlink_strict; +static int __init fw_devlink_strict_setup(char *arg) +{ + return strtobool(arg, &fw_devlink_strict); +} +early_param("fw_devlink.strict", fw_devlink_strict_setup); + u32 fw_devlink_get_flags(void) { return fw_devlink_flags; @@ -1531,6 +1538,11 @@ static bool fw_devlink_is_permissive(void) return fw_devlink_flags == FW_DEVLINK_FLAGS_PERMISSIVE; } +bool fw_devlink_is_strict(void) +{ + return fw_devlink_strict && !fw_devlink_is_permissive(); +} + static void fw_devlink_parse_fwnode(struct fwnode_handle *fwnode) { if (fwnode->flags & FWNODE_FLAG_LINKS_ADDED) |