* [PATCH 2/4] megaraid_sas: mask off flags in ioctl path
@ 2012-01-07 1:02 adam radford
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From: adam radford @ 2012-01-07 1:02 UTC (permalink / raw)
To: linux-scsi, Bo.Yang
[-- Attachment #1: Type: text/plain, Size: 838 bytes --]
James/linux-scsi,
The following patch for megaraid_sas masks off flags in the ioctl path
to prevent memory scribble with older MegaCLI versions.
Signed-off-by: Adam Radford <aradford@gmail.com>
diff -Naur scsi-misc-2.6/drivers/scsi/megaraid/megaraid_sas_base.c
scsi-misc-2.6.new/drivers/scsi/megaraid/megaraid_sas_base.c
--- scsi-misc-2.6/drivers/scsi/megaraid/megaraid_sas_base.c 2012-02-06
12:50:20.000000000 -0800
+++ scsi-misc-2.6.new/drivers/scsi/megaraid/megaraid_sas_base.c 2012-01-06
15:02:36.182434657 -0800
@@ -4773,6 +4773,8 @@
memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
cmd->frame->hdr.context = cmd->index;
cmd->frame->hdr.pad_0 = 0;
+ cmd->frame->hdr.flags &= ~(MFI_FRAME_IEEE | MFI_FRAME_SGL64 |
+ MFI_FRAME_SENSE64);
/*
* The management interface between applications and the fw uses
[-- Attachment #2: megaraid_sas.patch2 --]
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diff -Naur scsi-misc-2.6/drivers/scsi/megaraid/megaraid_sas_base.c scsi-misc-2.6.new/drivers/scsi/megaraid/megaraid_sas_base.c
--- scsi-misc-2.6/drivers/scsi/megaraid/megaraid_sas_base.c 2012-02-06 12:50:20.000000000 -0800
+++ scsi-misc-2.6.new/drivers/scsi/megaraid/megaraid_sas_base.c 2012-01-06 15:02:36.182434657 -0800
@@ -4773,6 +4773,8 @@
memcpy(cmd->frame, ioc->frame.raw, 2 * MEGAMFI_FRAME_SIZE);
cmd->frame->hdr.context = cmd->index;
cmd->frame->hdr.pad_0 = 0;
+ cmd->frame->hdr.flags &= ~(MFI_FRAME_IEEE | MFI_FRAME_SGL64 |
+ MFI_FRAME_SENSE64);
/*
* The management interface between applications and the fw uses
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2012-01-07 1:02 [PATCH 2/4] megaraid_sas: mask off flags in ioctl path adam radford
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