Re: drivers/gpu/drm/radeon/radeon_test.c:45: undefined reference to `__udivdi3'

[Dave Airlie <airlied@gmail.com>]

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On Sat, Dec 19, 2009 at 6:54 AM, Mr. James W. Laferriere
<babydr@baby-dragons.com> wrote:
>        Hello Benjamin ,  I am not having a good time compiling 2.6.32.1 .
> First RCU 'inline' difficulties then fusion-mpt 'inline' difficulty ,  Now
> this .
>        This one is not a simple as removing 'inline' from a statement .
>        Would you please look into this ?  Anything else you need please just
> ask .
>        Please cc: me as I am not subscribed to linux-fbdev .
>
>                Tia ,  JimL
>

Can you try the attached patch?

Dave.

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From 3c5faf9e1a2d429a7e3e16c7ebf0e81661972a91 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@linux.ie>
Date: Sun, 20 Dec 2009 16:08:40 +1000
Subject: [PATCH] drm/radeon: fix build on 64-bit with some compilers.

drivers/gpu/drm/radeon/radeon_test.c:45: undefined reference to `__udivdi3'

Reported-by: Mr. James W. Laferriere <babydr@baby-dragons.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_test.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_test.c b/drivers/gpu/drm/radeon/radeon_test.c
index 391c973..9f5e2f9 100644
--- a/drivers/gpu/drm/radeon/radeon_test.c
+++ b/drivers/gpu/drm/radeon/radeon_test.c
@@ -42,8 +42,8 @@ void radeon_test_moves(struct radeon_device *rdev)
 	/* Number of tests =
 	 * (Total GTT - IB pool - writeback page - ring buffer) / test size
 	 */
-	n = (rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024 - RADEON_GPU_PAGE_SIZE -
-	     rdev->cp.ring_size) / size;
+	n = ((u32)(rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024 - RADEON_GPU_PAGE_SIZE -
+	     rdev->cp.ring_size)) / size;
 
 	gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
 	if (!gtt_obj) {
-- 
1.6.5.2