Re: [PATCH 1/1] iommu/amd: initialize devid variable before using it

2016-06-26 16:33 GMT+08:00 Nicolas Iooss : > Commit 2a0cb4e2d423 ("iommu/amd: Add new map for storing IVHD dev entry > type HID") added a call to DUMP_printk in init_iommu_from_acpi() which > used the value of devid before this variable was initialized. > >

[PATCH 1/1] iommu/amd: initialize devid variable before using it

Commit 2a0cb4e2d423 ("iommu/amd: Add new map for storing IVHD dev entry type HID") added a call to DUMP_printk in init_iommu_from_acpi() which used the value of devid before this variable was initialized. Signed-off-by: Nicolas Iooss ---

Re: [PATCH v3 1/2] iommu: Disable preemption around use of this_cpu_ptr()

On 15.06.2016 14:25, Joerg Roedel wrote: > On Wed, Jun 01, 2016 at 12:10:08PM +0100, Chris Wilson wrote: >> Between acquiring the this_cpu_ptr() and using it, ideally we don't want >> to be preempted and work on another CPU's private data. this_cpu_ptr() >> checks whether or not preemption is