linux-kernel - [tip:x86/uv] x86, uv, uv3: Check current gru hub support for SGI UV3

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Message-ID: <tip-385404e0ce4dbceb72f3f89cb172b2e60ef8e6d3@git.kernel.org>
Date:	Mon, 11 Feb 2013 20:22:45 -0800
From:	tip-bot for Mike Travis <travis@....com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	travis@....com, tglx@...utronix.de, hpa@...ux.intel.com,
	sivanich@....com
Subject: [tip:x86/uv] x86, uv, uv3:
  Check current gru hub support for SGI UV3

Commit-ID:  385404e0ce4dbceb72f3f89cb172b2e60ef8e6d3
Gitweb:     http://git.kernel.org/tip/385404e0ce4dbceb72f3f89cb172b2e60ef8e6d3
Author:     Mike Travis <travis@....com>
AuthorDate: Mon, 11 Feb 2013 13:45:14 -0600
Committer:  H. Peter Anvin <hpa@...ux.intel.com>
CommitDate: Mon, 11 Feb 2013 17:18:19 -0800

x86, uv, uv3: Check current gru hub support for SGI UV3

This patch checks current hub support to avoid panicing the
system until all the GRU changes for UV3+ are in place.

Signed-off-by: Mike Travis <travis@....com>
Link: http://lkml.kernel.org/r/20130211194509.035828372@gulag1.americas.sgi.com
Acked-by: Dimitri Sivanich <sivanich@....com>
Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
---
 drivers/misc/sgi-gru/grufile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 492c8ca..44d273c 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -517,7 +517,7 @@ static int __init gru_init(void)
 {
 	int ret;
 
-	if (!is_uv_system())
+	if (!is_uv_system() || (is_uvx_hub() && !is_uv2_hub()))
 		return 0;
 
 #if defined CONFIG_IA64
--
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