[PATCH 3/7] cleanup: Make hvc_console.c compile on non-PowerPC

[Rusty Russell <rusty@rustcorp.com.au>]

There's a really nice console helper (esp. for virtual console
drivers) in drivers/char/hvc_console.c.  It has only ever been used
for PowerPC, though, so it uses NO_IRQ which is only defined there.

Let's fix that so it's more widely useful.  By, say, lguest.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

===================================================================
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -48,6 +48,10 @@
 #define HVC_MINOR	0
 
 #define TIMEOUT		(10)
+
+#ifndef NO_IRQ
+#define NO_IRQ 0
+#endif
 
 /*
  * Wait this long per iteration while trying to push buffered data to the


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