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Subject[PATCH 5.0 030/238] nfit/ars: Attempt short-ARS even in the no_init_ars case
Date
5.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Williams <dan.j.williams@intel.com>

commit fa3ed4d981b1fc19acdd07fcb152a4bd3706892b upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -3013,11 +3013,12 @@ static int ars_register(struct acpi_nfit
{
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:

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