[PATCH] x86: IOMMU setup failures should not be KERN_ERR

[PATCH] x86: IOMMU setup failures should not be KERN_ERR

[Adam Jackson]

The number of BIOSes that have an option to enable the IOMMU, or fix
anything about its configuration, is vanishingly small.  There's no good
reason to punish quiet boot for this.

Signed-off-by: Adam Jackson <ajax@redhat.com>
---
 arch/x86/kernel/aperture_64.c |    6 +++---
 include/asm-x86/gart.h        |    6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 44e2182..9a32b37 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -455,11 +455,11 @@ out:
 		   force_iommu ||
 		   valid_agp ||
 		   fallback_aper_force) {
-		printk(KERN_ERR
+		printk(KERN_INFO
 			"Your BIOS doesn't leave a aperture memory hole\n");
-		printk(KERN_ERR
+		printk(KERN_INFO
 			"Please enable the IOMMU option in the BIOS setup\n");
-		printk(KERN_ERR
+		printk(KERN_INFO
 			"This costs you %d MB of RAM\n",
 				32 << fallback_aper_order);
 
diff --git a/include/asm-x86/gart.h b/include/asm-x86/gart.h
index 3f62a83..583031c 100644
--- a/include/asm-x86/gart.h
+++ b/include/asm-x86/gart.h
@@ -52,15 +52,15 @@ static inline int aperture_valid(u64 aper_base, u32 aper_size, u32 min_size)
 		return 0;
 
 	if (aper_base + aper_size > 0x100000000ULL) {
-		printk(KERN_ERR "Aperture beyond 4GB. Ignoring.\n");
+		printk(KERN_INFO "Aperture beyond 4GB. Ignoring.\n");
 		return 0;
 	}
 	if (e820_any_mapped(aper_base, aper_base + aper_size, E820_RAM)) {
-		printk(KERN_ERR "Aperture pointing to e820 RAM. Ignoring.\n");
+		printk(KERN_INFO "Aperture pointing to e820 RAM. Ignoring.\n");
 		return 0;
 	}
 	if (aper_size < min_size) {
-		printk(KERN_ERR "Aperture too small (%d MB) than (%d MB)\n",
+		printk(KERN_INFO "Aperture too small (%d MB) than (%d MB)\n",
 				 aper_size>>20, min_size>>20);
 		return 0;
 	}
-- 
1.6.0.1

Re: [PATCH] x86: IOMMU setup failures should not be KERN_ERR

[Ingo Molnar]

* Adam Jackson <ajax@redhat.com> wrote:

> The number of BIOSes that have an option to enable the IOMMU, or fix
> anything about its configuration, is vanishingly small.  There's no good
> reason to punish quiet boot for this.
> 
> Signed-off-by: Adam Jackson <ajax@redhat.com>
> ---
>  arch/x86/kernel/aperture_64.c |    6 +++---
>  include/asm-x86/gart.h        |    6 +++---
>  2 files changed, 6 insertions(+), 6 deletions(-)

applied to tip/x86/debug, thanks Adam!

	Ingo