omap2+: Fix unused variable warning for omap_irq_base

Commit 5d190c40100793a6dfc37bf325677c10f3c80edf
(omap2+: Initialize omap_irq_base for entry-macro.S from
platform code) simplified the handling of omap_irq_base
for multi-omap builds. However, this patch also introduced
a build warning for !MULTI_OMAP2 builds:

arch/arm/mach-omap2/io.c: In function 'omap_irq_base_init':
arch/arm/mach-omap2/io.c:322: warning: unused variable 'omap_irq_base'

Fix this by removing the ifdef. Also simplify things further
by moving omap_irq_base out of entry-macro.S.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/include/mach/entry-macro.S b/arch/arm/mach-omap2/include/mach/entry-macro.S
index befa321..81985a6 100644 (file)
--- a/arch/arm/mach-omap2/include/mach/entry-macro.S
+++ b/arch/arm/mach-omap2/include/mach/entry-macro.S
@@ -38,20 +38,6 @@
  */
 
 #ifdef MULTI_OMAP2
-
-/*
- * We use __glue to avoid errors with multiple definitions of
- * .globl omap_irq_base as it's included from entry-armv.S but not
- * from entry-common.S.
- */
-#ifdef __glue
-               .pushsection .data
-               .globl  omap_irq_base
-omap_irq_base:
-               .word   0
-               .popsection
-#endif
-
                /*
                 * Configure the interrupt base on the first interrupt.
                 * See also omap_irq_base_init for setting omap_irq_base.

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index e66687b..c203204 100644 (file)
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -314,14 +314,13 @@ static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
        return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
 }
 
+void __iomem *omap_irq_base;
+
 /*
  * Initialize asm_irq_base for entry-macro.S
  */
 static inline void omap_irq_base_init(void)
 {
-       extern void __iomem *omap_irq_base;
-
-#ifdef MULTI_OMAP2
        if (cpu_is_omap24xx())
                omap_irq_base = OMAP2_L4_IO_ADDRESS(OMAP24XX_IC_BASE);
        else if (cpu_is_omap34xx())
@@ -330,7 +329,6 @@ static inline void omap_irq_base_init(void)
                omap_irq_base = OMAP2_L4_IO_ADDRESS(OMAP44XX_GIC_CPU_BASE);
        else
                pr_err("Could not initialize omap_irq_base\n");
-#endif
 }
 
 void __init omap2_init_common_infrastructure(void)