Commit-ID: 30969e34ae6edf10a003f6c0be1fecf6dadcd421 Gitweb: http://git.kernel.org/tip/30969e34ae6edf10a003f6c0be1fecf6dadcd421 Author: Jiang Liu <[email protected]> AuthorDate: Wed, 7 Jan 2015 15:31:41 +0800 Committer: Thomas Gleixner <[email protected]> CommitDate: Thu, 15 Jan 2015 11:24:24 +0100
iommu/irq_remapping: Refine function irq_remapping_prepare() for maintenance Assign intel_irq_remap_ops to remap_ops only if intel_irq_remap_ops.prepare() succeeds. Signed-off-by: Jiang Liu <[email protected]> Tested-by: Joerg Roedel <[email protected]> Cc: Tony Luck <[email protected]> Cc: [email protected] Cc: Benjamin Herrenschmidt <[email protected]> Cc: Yinghai Lu <[email protected]> Cc: Borislav Petkov <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> --- drivers/iommu/irq_remapping.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index e7449b4..7d85d2b 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -204,15 +204,15 @@ int __init irq_remapping_prepare(void) if (disable_irq_remap) return -ENOSYS; - remap_ops = &intel_irq_remap_ops; - -#ifdef CONFIG_AMD_IOMMU - if (amd_iommu_irq_ops.prepare() == 0) { + if (intel_irq_remap_ops.prepare() == 0) + remap_ops = &intel_irq_remap_ops; + else if (IS_ENABLED(CONFIG_AMD_IOMMU) && + amd_iommu_irq_ops.prepare() == 0) remap_ops = &amd_iommu_irq_ops; - return 0; - } -#endif - return remap_ops->prepare(); + else + return -ENOSYS; + + return 0; } int __init irq_remapping_enable(void) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
