diff options
| author | Jiang Liu <jiang.liu@linux.intel.com> | 2015-01-07 08:31:42 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-01-15 11:24:24 +0100 |
| commit | 7fa1c842caca3b1d8a55a64033403cab8ca8583a (patch) | |
| tree | 8c79a44fed49274c538781dafaa3071c77aa09d3 /drivers/iommu | |
| parent | iommu/irq_remapping: Refine function irq_remapping_prepare() for maintenance (diff) | |
| download | linux-7fa1c842caca3b1d8a55a64033403cab8ca8583a.tar.xz linux-7fa1c842caca3b1d8a55a64033403cab8ca8583a.zip | |
iommu/irq_remapping: Change variable disable_irq_remap to be static
Change variable disable_irq_remap to be static and simplify the code.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Tested-by: Joerg Roedel <joro@8bytes.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: iommu@lists.linux-foundation.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Link: http://lkml.kernel.org/r/1420615903-28253-16-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu_init.c | 6 | ||||
| -rw-r--r-- | drivers/iommu/intel_irq_remapping.c | 5 | ||||
| -rw-r--r-- | drivers/iommu/irq_remapping.c | 3 | ||||
| -rw-r--r-- | drivers/iommu/irq_remapping.h | 2 |
4 files changed, 2 insertions, 14 deletions
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 970979ecbebb..e430dc8dffdf 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -2014,9 +2014,6 @@ static bool detect_ivrs(void) /* Make sure ACS will be enabled during PCI probe */ pci_request_acs(); - if (!disable_irq_remap) - amd_iommu_irq_remap = true; - return true; } @@ -2123,8 +2120,7 @@ static int __init iommu_go_to_state(enum iommu_init_state state) #ifdef CONFIG_IRQ_REMAP int __init amd_iommu_prepare(void) { - if (!amd_iommu_irq_remap) - return -1; + amd_iommu_irq_remap = true; return iommu_go_to_state(IOMMU_ACPI_FINISHED); } diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index fb72bd5f438c..14de1ab223c8 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -588,10 +588,6 @@ static int __init intel_prepare_irq_remapping(void) struct dmar_drhd_unit *drhd; struct intel_iommu *iommu; - /* First check whether IRQ remapping should be enabled */ - if (disable_irq_remap) - return -ENODEV; - if (irq_remap_broken) { printk(KERN_WARNING "This system BIOS has enabled interrupt remapping\n" @@ -600,7 +596,6 @@ static int __init intel_prepare_irq_remapping(void) "interrupt remapping is being disabled. Please\n" "contact your BIOS vendor for an update\n"); add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK); - disable_irq_remap = 1; return -ENODEV; } diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index 7d85d2ba0e8b..5585c4e17e39 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -17,12 +17,11 @@ #include "irq_remapping.h" int irq_remapping_enabled; - -int disable_irq_remap; int irq_remap_broken; int disable_sourceid_checking; int no_x2apic_optout; +static int disable_irq_remap; static struct irq_remap_ops *remap_ops; static int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec); diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h index a8edfea0ab5d..c448eb48340a 100644 --- a/drivers/iommu/irq_remapping.h +++ b/drivers/iommu/irq_remapping.h @@ -31,7 +31,6 @@ struct cpumask; struct pci_dev; struct msi_msg; -extern int disable_irq_remap; extern int irq_remap_broken; extern int disable_sourceid_checking; extern int no_x2apic_optout; @@ -86,7 +85,6 @@ extern struct irq_remap_ops amd_iommu_irq_ops; #else /* CONFIG_IRQ_REMAP */ #define irq_remapping_enabled 0 -#define disable_irq_remap 1 #define irq_remap_broken 0 #endif /* CONFIG_IRQ_REMAP */ |