linux-kernel - [PATCH] ipmi: set si_trydefaults=0 for ARM64

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Message-Id: <1466447175-14263-1-git-send-email-tcamuso@redhat.com>
Date:	Mon, 20 Jun 2016 13:26:15 -0500
From:	Tony Camuso <tcamuso@...hat.com>
To:	minyard@....org, openipmi-developer@...ts.sourceforge.net
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] ipmi: set si_trydefaults=0 for ARM64

Port I/O space does not exist in ARM64 and is not mapped. Attempts to
access it on ARM systems cause stack traces and worse.

Signed-off-by: Tony Camuso <tcamuso@...hat.com>
---
 drivers/char/ipmi/ipmi_si_intf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 615abbf..85dcc86 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -3841,6 +3841,11 @@ static int init_ipmi_si(void)
 		spmi_find_bmc();
 #endif
 
+#ifdef CONFIG_ARM64
+	/* Don't touch port io space */
+	si_trydefaults = 0;
+#endif
+
 #ifdef CONFIG_PARISC
 	register_parisc_driver(&ipmi_parisc_driver);
 	parisc_registered = true;
-- 
1.8.3.1