[PATCH 1/1] ARM: cache-l2x0: Fix compile time warnings when !CONFIG_OF

[PATCH 1/1] ARM: cache-l2x0: Fix compile time warnings when !CONFIG_OF

[Lee Jones]

Introduced by:
07bd005ed2457876f653fda12981708d737543df
ARM: 7547/1: cache-l2x0: add support for Aurora L2 cache ctrl

arch/arm/mm/cache-l2x0.c:37:12: warning: ‘l2_wt_override’ defined but not used
arch/arm/mm/cache-l2x0.c:292:22: warning: ‘calc_range_end’ defined but not used
arch/arm/mm/cache-l2x0.c:315:13: warning: ‘aurora_pa_range’ defined but not used
arch/arm/mm/cache-l2x0.c:328:13: warning: ‘aurora_inv_range’ defined but not used
arch/arm/mm/cache-l2x0.c:347:13: warning: ‘aurora_clean_range’ defined but not used
arch/arm/mm/cache-l2x0.c:365:13: warning: ‘aurora_flush_range’ defined but not used

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 arch/arm/mm/cache-l2x0.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index bfb5986..25a9226 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -34,7 +34,6 @@ static DEFINE_RAW_SPINLOCK(l2x0_lock);
 static u32 l2x0_way_mask;	/* Bitmask of active ways */
 static u32 l2x0_size;
 static unsigned long sync_reg_offset = L2X0_CACHE_SYNC;
-static int l2_wt_override;
 
 /* Aurora don't have the cache ID register available, so we have to
  * pass it though the device tree */
@@ -284,6 +283,10 @@ static void l2x0_flush_range(unsigned long start, unsigned long end)
 	raw_spin_unlock_irqrestore(&l2x0_lock, flags);
 }
 
+#ifdef CONFIG_OF
+
+static int l2_wt_override;
+
 /*
  * Note that the end addresses passed to Linux primitives are
  * noninclusive, while the hardware cache range operations use
@@ -375,6 +378,7 @@ static void aurora_flush_range(unsigned long start, unsigned long end)
 		}
 	}
 }
+#endif
 
 static void l2x0_disable(void)
 {
-- 
1.7.9.5

Re: [PATCH 1/1] ARM: cache-l2x0: Fix compile time warnings when !CONFIG_OF

[Russell King - ARM Linux]

I assume you're working with an old kernel... this has already been
fixed.

On Thu, Nov 22, 2012 at 12:07:47PM +0000, Lee Jones wrote:
> Introduced by:
> 07bd005ed2457876f653fda12981708d737543df
> ARM: 7547/1: cache-l2x0: add support for Aurora L2 cache ctrl
> 
> arch/arm/mm/cache-l2x0.c:37:12: warning: ‘l2_wt_override’ defined but not used
> arch/arm/mm/cache-l2x0.c:292:22: warning: ‘calc_range_end’ defined but not used
> arch/arm/mm/cache-l2x0.c:315:13: warning: ‘aurora_pa_range’ defined but not used
> arch/arm/mm/cache-l2x0.c:328:13: warning: ‘aurora_inv_range’ defined but not used
> arch/arm/mm/cache-l2x0.c:347:13: warning: ‘aurora_clean_range’ defined but not used
> arch/arm/mm/cache-l2x0.c:365:13: warning: ‘aurora_flush_range’ defined but not used
> 
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---
>  arch/arm/mm/cache-l2x0.c |    6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
> index bfb5986..25a9226 100644
> --- a/arch/arm/mm/cache-l2x0.c
> +++ b/arch/arm/mm/cache-l2x0.c
> @@ -34,7 +34,6 @@ static DEFINE_RAW_SPINLOCK(l2x0_lock);
>  static u32 l2x0_way_mask;	/* Bitmask of active ways */
>  static u32 l2x0_size;
>  static unsigned long sync_reg_offset = L2X0_CACHE_SYNC;
> -static int l2_wt_override;
>  
>  /* Aurora don't have the cache ID register available, so we have to
>   * pass it though the device tree */
> @@ -284,6 +283,10 @@ static void l2x0_flush_range(unsigned long start, unsigned long end)
>  	raw_spin_unlock_irqrestore(&l2x0_lock, flags);
>  }
>  
> +#ifdef CONFIG_OF
> +
> +static int l2_wt_override;
> +
>  /*
>   * Note that the end addresses passed to Linux primitives are
>   * noninclusive, while the hardware cache range operations use
> @@ -375,6 +378,7 @@ static void aurora_flush_range(unsigned long start, unsigned long end)
>  		}
>  	}
>  }
> +#endif
>  
>  static void l2x0_disable(void)
>  {
> -- 
> 1.7.9.5
> 

Re: [PATCH 1/1] ARM: cache-l2x0: Fix compile time warnings when !CONFIG_OF

[Lee Jones]

On Thu, 22 Nov 2012, Russell King - ARM Linux wrote:

> I assume you're working with an old kernel... this has already been
> fixed.

If by 'old' you mean a few -rc's, then yes.

I've rebased and the issue has gone away, thanks.

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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