linux-kernel - [PATCH] x86, UV - uv_global_gru_mmr

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Message-ID: <20100107161240.GA2610@sgi.com>
Date:	Thu, 7 Jan 2010 10:12:40 -0600
From:	Jack Steiner <steiner@....com>
To:	mingo@...e.hu, tglx@...utronix.de
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] x86, UV - uv_global_gru_mmr_address() macro fix

Fix bug in uv_global_gru_mmr_address macro.  Macro failed
to cast an int value to a long prior to a left shift > 32.

Signed-off-by: Jack Steiner <steiner@....com>
Cc: <stable@...nel.org>

---
 arch/x86/include/asm/uv/uv_hub.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux/arch/x86/include/asm/uv/uv_hub.h
===================================================================
--- linux.orig/arch/x86/include/asm/uv/uv_hub.h	2010-01-07 01:54:31.000000000 -0600
+++ linux/arch/x86/include/asm/uv/uv_hub.h	2010-01-07 09:43:02.000000000 -0600
@@ -329,7 +329,8 @@ static inline unsigned long uv_read_glob
  */
 static inline unsigned long uv_global_gru_mmr_address(int pnode, unsigned long offset)
 {
-	return UV_GLOBAL_GRU_MMR_BASE | offset | (pnode << uv_hub_info->m_val);
+	return UV_GLOBAL_GRU_MMR_BASE | offset |
+		((unsigned long)pnode << uv_hub_info->m_val);
 }
 
 static inline void uv_write_global_mmr8(int pnode, unsigned long offset, unsigned char val)
--
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