diff options
| author |   Dan Williams <dan.j.williams@intel.com> | 2018-04-02 15:28:03 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2018-04-07 08:44:55 -0700 |
| commit | bca811a7fd5a5c1c0644926161c2843322ab74b3 (patch) | |
| tree | 172da0b67f8f0d2d382437268d0306e8657e01a0 /drivers | |
| parent | nfit, address-range-scrub: rework and simplify ARS state machine (diff) | |
| download | wireguard-linux-bca811a7fd5a5c1c0644926161c2843322ab74b3.tar.xz wireguard-linux-bca811a7fd5a5c1c0644926161c2843322ab74b3.zip | |
nfit, address-range-scrub: add module option to skip initial ars
After attempting to quickly retrieve known errors the kernel proceeds to
kick off a long running ARS. Add a module option to disable this
behavior at initialization time, or at new region discovery time.
Otherwise, ARS can be started manually regardless of the state of this
setting.
Co-developed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/nfit/core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 2532294bbd68..7f3c70fde9a8 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -49,6 +49,10 @@ module_param(default_dsm_family, int, S_IRUGO); MODULE_PARM_DESC(default_dsm_family, "Try this DSM type first when identifying NVDIMM family"); +static bool no_init_ars; +module_param(no_init_ars, bool, 0644); +MODULE_PARM_DESC(no_init_ars, "Skip ARS run at nfit init time"); + LIST_HEAD(acpi_descs); DEFINE_MUTEX(acpi_desc_lock); @@ -2816,6 +2820,9 @@ static int ars_register(struct acpi_nfit_desc *acpi_desc, struct nfit_spa *nfit_ { int rc = *query_rc; + if (no_init_ars) + return acpi_nfit_register_region(acpi_desc, nfit_spa); + set_bit(ARS_REQ, &nfit_spa->ars_state); set_bit(ARS_SHORT, &nfit_spa->ars_state); |