[PATCH 2/4] megaraid_sas: mask off flags in ioctl path

[adam radford <aradford@xxxxxxxxx>]

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@xxxxxxxxx>

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: megaraid_sas.patch2
Description: Binary data