linux-kernel - [PATCH v4 6/6] nfit allow override of root dsm mask

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Date:   Fri, 30 Jun 2017 10:09:39 -0600
From:   Jerry Hoemann <jerry.hoemann@....com>
To:     dan.j.williams@...el.com
Cc:     linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org,
        Jerry Hoemann <jerry.hoemann@....com>
Subject: [PATCH v4 6/6] nfit allow override of root dsm mask

Have module parameter override_dsm_mask override the dsm_mask for
root calls like it does for non-root dsm calls.

Signed-off-by: Jerry Hoemann <jerry.hoemann@....com>
---
 drivers/acpi/nfit/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 4e24d69..87acaf2 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1641,6 +1641,8 @@ static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc)
 	set_bit(ND_CMD_CALL, &nd_desc->cmd_mask);
 
 	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);
-- 
1.8.5.6