[PARISC] Add __read_mostly section for parisc

Flag a whole bunch of things as __read_mostly on parisc. Also flag a few
branches as unlikely() and cleanup a bit of code.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 6362bf9..3d94d86 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -57,7 +57,7 @@
 
 static DEFINE_SPINLOCK(eisa_irq_lock);
 
-void __iomem *eisa_eeprom_addr;
+void __iomem *eisa_eeprom_addr __read_mostly;
 
 /* We can only have one EISA adapter in the system because neither
  * implementation can be flexed.
@@ -141,7 +141,7 @@
  * in the furure. 
  */
 /* irq 13,8,2,1,0 must be edge */
-static unsigned int eisa_irq_level; /* default to edge triggered */
+static unsigned int eisa_irq_level __read_mostly; /* default to edge triggered */
 
 
 /* called by free irq */