Patch "drm/prime: Support page array >= 4GB" has been added to the 6.6-stable tree

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

    drm/prime: Support page array >= 4GB

to the 6.6-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-prime-support-page-array-4gb.patch
and it can be found in the queue-6.6 subdirectory.

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


>From b671cd3d456315f63171a670769356a196cf7fd0 Mon Sep 17 00:00:00 2001
From: Philip Yang <Philip.Yang@xxxxxxx>
Date: Mon, 21 Aug 2023 16:02:01 -0400
Subject: drm/prime: Support page array >= 4GB
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Philip Yang <Philip.Yang@xxxxxxx>

commit b671cd3d456315f63171a670769356a196cf7fd0 upstream.

Without unsigned long typecast, the size is passed in as zero if page
array size >= 4GB, nr_pages >= 0x100000, then sg list converted will
have the first and the last chunk lost.

Signed-off-by: Philip Yang <Philip.Yang@xxxxxxx>
Acked-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
CC: stable@xxxxxxxxxxxxxxx
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230821200201.24685-1-Philip.Yang@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/drm_prime.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -820,7 +820,7 @@ struct sg_table *drm_prime_pages_to_sg(s
 	if (max_segment == 0)
 		max_segment = UINT_MAX;
 	err = sg_alloc_table_from_pages_segment(sg, pages, nr_pages, 0,
-						nr_pages << PAGE_SHIFT,
+						(unsigned long)nr_pages << PAGE_SHIFT,
 						max_segment, GFP_KERNEL);
 	if (err) {
 		kfree(sg);


Patches currently in stable-queue which might be from Philip.Yang@xxxxxxx are

queue-6.6/drm-prime-support-page-array-4gb.patch




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