From fa3ed4d981b1fc19acdd07fcb152a4bd3706892b Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 13 Feb 2019 09:01:13 -0800
Subject: [PATCH] nfit/ars: Attempt short-ARS even in the no_init_ars case
Git-commit: fa3ed4d981b1fc19acdd07fcb152a4bd3706892b
Patch-mainline: v5.1-rc1
References: bsc#1051510

The no_init_ars option is meant to prevent long-ARS, but short-ARS
should be allowed to grab any immediate results.

Fixes: bc6ba8085842 ("nfit, address-range-scrub: rework and simplify ARS...")
Cc: <stable@vger.kernel.org>
Reported-by: Erwin Tsaur <erwin.tsaur@oracle.com>
Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/acpi/nfit/core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 3d681a92ff7f..934be96dc149 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -3004,11 +3004,12 @@ static int ars_register(struct acpi_nfit_desc *acpi_desc,
 {
 	int rc;
 
-	if (no_init_ars || test_bit(ARS_FAILED, &nfit_spa->ars_state))
+	if (test_bit(ARS_FAILED, &nfit_spa->ars_state))
 		return acpi_nfit_register_region(acpi_desc, nfit_spa);
 
 	set_bit(ARS_REQ_SHORT, &nfit_spa->ars_state);
-	set_bit(ARS_REQ_LONG, &nfit_spa->ars_state);
+	if (!no_init_ars)
+		set_bit(ARS_REQ_LONG, &nfit_spa->ars_state);
 
 	switch (acpi_nfit_query_poison(acpi_desc)) {
 	case 0:
-- 
2.16.4