linux-kernel - [PATCH AUTOSEL 4.18 046/100] qed: Fix shmem structure inconsistency between driver and the mfw.

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Date:   Tue, 16 Oct 2018 00:11:27 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Sudarsana Reddy Kalluru <sudarsana.kalluru@...ium.com>,
        Sudarsana Reddy Kalluru <Sudarsana.Kalluru@...ium.com>,
        Michal Kalderon <Michal.Kalderon@...ium.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.18 046/100] qed: Fix shmem structure inconsistency between driver and the mfw.

From: Sudarsana Reddy Kalluru <sudarsana.kalluru@...ium.com>

[ Upstream commit 5f672090e44f4951084c5e1d6b0668a5fc422af8 ]

The structure shared between driver and the management FW (mfw) differ in
sizes. This would lead to issues when driver try to access the structure
members which are not-aligned with the mfw copy e.g., data_ptr usage in the
case of mfw_tlv request.
Align the driver structure with mfw copy, add reserved field(s) to driver
structure for the members not used by the driver.

Fixes: dd006921d67f ("qed: Add MFW interfaces for TLV request support.)
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@...ium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@...ium.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/qlogic/qed/qed_hsi.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
index bee10c1781fb..463ffa83685f 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
@@ -11987,6 +11987,7 @@ struct public_global {
 	u32 running_bundle_id;
 	s32 external_temperature;
 	u32 mdump_reason;
+	u64 reserved;
 	u32 data_ptr;
 	u32 data_size;
 };
-- 
2.17.1