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Date: Mon, 10 Feb 2020 04:30:39 -0800 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Quinn Tran <qutran@...vell.com>, Himanshu Madhani <hmadhani@...vell.com>, "Martin K. Petersen" <martin.petersen@...cle.com> Subject: [PATCH 5.5 126/367] scsi: qla2xxx: Fix mtcp dump collection failure From: Quinn Tran <qutran@...vell.com> commit 641e0efddcbde52461e017136acd3ce7f2ef0c14 upstream. MTCP dump failed due to MB Reg 10 was picking garbage data from stack memory. Fixes: 81178772b636a ("[SCSI] qla2xxx: Implemetation of mctp.") Cc: stable@...r.kernel.org Link: https://lore.kernel.org/r/20191217220617.28084-14-hmadhani@marvell.com Signed-off-by: Quinn Tran <qutran@...vell.com> Signed-off-by: Himanshu Madhani <hmadhani@...vell.com> Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/scsi/qla2xxx/qla_mbx.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -6152,9 +6152,8 @@ qla2x00_dump_mctp_data(scsi_qla_host_t * mcp->mb[7] = LSW(MSD(req_dma)); mcp->mb[8] = MSW(addr); /* Setting RAM ID to valid */ - mcp->mb[10] |= BIT_7; /* For MCTP RAM ID is 0x40 */ - mcp->mb[10] |= 0x40; + mcp->mb[10] = BIT_7 | 0x40; mcp->out_mb |= MBX_10|MBX_8|MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1| MBX_0;
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