[PATCH] ipmi: check, if default ports are accessible on PPC

ipmi_si_intf tries to access default ports, if no device could be found
elsewhere. On PPC we have a function to check, if these legacy IO ports
are accessible. This patch adds a check for these ports on PPC. This
patch fixes a breakage of IPMI module on PPC machines without a BMC.

Signed-off-by: Christian Krafft <[e-mail]>
Acked-by: Michael Ellerman <[e-mail]>
Signed-off-by: Corey Minyard <[e-mail]>
Cc: Paul Mackerras <[e-mail]>
Cc: Benjamin Herrenschmidt <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/char/ipmi/ipmi_si_intf.c

···
 		if (!info)
 			return;
 
+#ifdef CONFIG_PPC_MERGE
+		if (check_legacy_ioport(ipmi_defaults[i].port))
+			continue;
+#endif
+
 		info->addr_source = NULL;
 
 		info->si_type = ipmi_defaults[i].type;