diff mbox

[v2,7/7] acpi, nfit: override mask

Message ID a9511b97feab5d3963c6e98391176c5c782277d5.1497939166.git.jerry.hoemann@hpe.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jerry Hoemann June 20, 2017, 4:51 p.m. UTC 
Add module parameter override_dsm_mask_root for overriding
the dsm_mask like we do for non-root dsm calls.

Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
---
 drivers/acpi/nfit/core.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index f133b3e..456fcc2 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1624,6 +1624,7 @@  static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc)
 	struct nvdimm_bus_descriptor *nd_desc = &acpi_desc->nd_desc;
 	const u8 *uuid = to_nfit_uuid(NFIT_DEV_BUS);
 	struct acpi_device *adev;
+	unsigned long dsm_mask;
 	int i;
 
 	nd_desc->cmd_mask = acpi_desc->bus_cmd_force_en;
@@ -1635,7 +1636,11 @@  static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc)
 		if (acpi_check_dsm(adev->handle, uuid, 1, 1ULL << i))
 			set_bit(i, &nd_desc->cmd_mask);
 	set_bit(ND_CMD_CALL, &nd_desc->cmd_mask);
-	for (i = 0; i < ND_CMD_CALL; i++)
+
+	dsm_mask = 0x3bf;
+	if (override_dsm_mask)
+		dsm_mask = override_dsm_mask;
+	for_each_set_bit(i, &dsm_mask, BITS_PER_LONG)
 		if (acpi_check_dsm(adev->handle, uuid, 1, 1ULL << i))
 			set_bit(i, &nd_desc->bus_dsm_mask);
 }