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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Suganath Prabu <suganath-prabu.subramani@broadcom.com>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Andy Shevchenko <andy.shevchenko@gmail.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.19 226/306] scsi: mpt3sas: Fix driver modifying persistent data in Manufacturing page11
Date:   Wed, 27 Nov 2019 21:31:16 +0100
Message-Id: <20191127203131.550624748@linuxfoundation.org>
In-Reply-To: <20191127203114.766709977@linuxfoundation.org>
References: <20191127203114.766709977@linuxfoundation.org>
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From: Suganath Prabu <suganath-prabu.subramani@broadcom.com>

[ Upstream commit 97f35194093362a63b33caba2485521ddabe2c95 ]

Currently driver is modifying both current & NVRAM/persistent data in
Manufacturing page11. Driver should change only current copy of
Manufacturing page11. It should not modify the persistent data.

So removed the section of code where driver is modifying the persistent
data of Manufacturing page11.

Signed-off-by: Suganath Prabu <suganath-prabu.subramani@broadcom.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpt3sas/mpt3sas_config.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_config.c b/drivers/scsi/mpt3sas/mpt3sas_config.c
index d29a2dcc7d0ec..9b01c5a7aebd9 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_config.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_config.c
@@ -692,10 +692,6 @@ mpt3sas_config_set_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc,
 	r = _config_request(ioc, &mpi_request, mpi_reply,
 	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
 	    sizeof(*config_page));
-	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM;
-	r = _config_request(ioc, &mpi_request, mpi_reply,
-	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
-	    sizeof(*config_page));
  out:
 	return r;
 }
-- 
2.20.1