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nfit/ars: Attempt a short-ARS whenever the ARS state is idle at boot

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commit c6c5df293b upstream.

If query-ARS reports that ARS has stopped and requires continuation
attempt to retrieve short-ARS results before continuing the long
operation.

Fixes: bc6ba80858 ("nfit, address-range-scrub: rework and simplify ARS...")
Cc: <stable@vger.kernel.org>
Reported-by: Krzysztof Rusocki <krzysztof.rusocki@intel.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>
This commit is contained in:
Dan Williams
2019-02-13 08:58:40 -08:00
committed by Greg Kroah-Hartman
parent f5878c4f08
commit e6defe7660
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/nfit/core.c
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@@ -2900,6 +2900,7 @@ static int ars_register(struct acpi_nfit_desc *acpi_desc,
switch (acpi_nfit_query_poison(acpi_desc)) {
case 0:
case -ENOSPC:
case -EAGAIN:
rc = ars_start(acpi_desc, nfit_spa, ARS_REQ_SHORT);
/* shouldn't happen, try again later */
@@ -2924,7 +2925,6 @@ static int ars_register(struct acpi_nfit_desc *acpi_desc,
break;
case -EBUSY:
case -ENOMEM:
case -ENOSPC:
/*
* BIOS was using ARS, wait for it to complete (or
* resources to become available) and then perform our