linux-kernel - linux-next: build failure after merge of the staging tree

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Date:	Mon, 25 Jul 2011 15:21:44 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Greg KH <greg@...ah.com>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alan Cox <alan@...ux.intel.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: linux-next: build failure after merge of the staging tree

Hi Greg,

After merging the staging tree, today's linux-next build (x86_64
allmodconfig) failed like this:

ERROR: "__bad_udelay" [drivers/staging/gma500/psb_gfx.ko] undefined!

Caused by commit 1e585b52fd8e ("gma500: Add the Oaktrail HDMI support")
interacting with commit a87e553fabe8 ("asm-generic: delay.h fix udelay
and ndelay for 8 bit args").  I have applied the follwowing patch for
today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 25 Jul 2011 15:18:44 +1000
Subject: [PATCH] gma500: udelay(20000) it too long again

so replace it with mdelay(20).

Fixes build error:

ERROR: "__bad_udelay" [drivers/staging/gma500/psb_gfx.ko] undefined!

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/staging/gma500/mrst_hdmi.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/gma500/mrst_hdmi.c b/drivers/staging/gma500/mrst_hdmi.c
index d6a5179..e66607e 100644
--- a/drivers/staging/gma500/mrst_hdmi.c
+++ b/drivers/staging/gma500/mrst_hdmi.c
@@ -129,7 +129,7 @@ static void wait_for_vblank(struct drm_device *dev)
 {
 	/* FIXME: Can we do this as a sleep ? */
 	/* Wait for 20ms, i.e. one cycle at 50hz. */
-	udelay(20000);
+	mdelay(20);
 }
 
 static void scu_busy_loop(void *scu_base)
-- 
1.7.5.4

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/
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