Patch "drm/amd/pp: fix typecast error in powerplay." has been added to the 4.9-stable tree

Patch "drm/amd/pp: fix typecast error in powerplay." has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm/amd/pp: fix typecast error in powerplay.

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-amd-pp-fix-typecast-error-in-powerplay.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 8d8258bdab735d9f3c4b78e091ecfbb2b2b1f2ca Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Fri, 17 Nov 2017 16:41:16 +0800
Subject: drm/amd/pp: fix typecast error in powerplay.

From: Rex Zhu <Rex.Zhu@amd.com>

commit 8d8258bdab735d9f3c4b78e091ecfbb2b2b1f2ca upstream.

resulted in unexpected data truncation

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
@@ -850,9 +850,9 @@ static int init_over_drive_limits(
 		const ATOM_Tonga_POWERPLAYTABLE *powerplay_table)
 {
 	hwmgr->platform_descriptor.overdriveLimit.engineClock =
-		le16_to_cpu(powerplay_table->ulMaxODEngineClock);
+		le32_to_cpu(powerplay_table->ulMaxODEngineClock);
 	hwmgr->platform_descriptor.overdriveLimit.memoryClock =
-		le16_to_cpu(powerplay_table->ulMaxODMemoryClock);
+		le32_to_cpu(powerplay_table->ulMaxODMemoryClock);
 
 	hwmgr->platform_descriptor.minOverdriveVDDC = 0;
 	hwmgr->platform_descriptor.maxOverdriveVDDC = 0;


Patches currently in stable-queue which might be from Rex.Zhu@amd.com are

queue-4.9/drm-amd-pp-fix-typecast-error-in-powerplay.patch