mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2026-10-09 18:15:49 +00:00
No description
- C 96.9%
- Assembly 0.9%
- Rust 0.6%
- Shell 0.6%
- Python 0.5%
- Other 0.3%
c919739ce4
Currently we rely on registering all our instances before initially allowing any .probe_device calls via bus_set_iommu(). In preparation for phasing out the latter, make sure we won't inadvertently return success for a device associated with a known but not yet registered instance, otherwise we'll run straight into iommu_group_get_for_dev() trying to use NULL ops. That also highlights an issue with intel_iommu_get_resv_regions() taking dmar_global_lock from within a section where intel_iommu_init() already holds it, which already exists via probe_acpi_namespace_devices() when an ANDD device is probed, but gets more obvious with the upcoming change to iommu_device_register(). Since they are both read locks it manages not to deadlock in practice, and a more in-depth rework of this locking is underway, so no attempt is made to address it here. Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/579f2692291bcbfc3ac64f7456fcff0d629af131.1660572783.git.robin.murphy@arm.com Signed-off-by: Joerg Roedel <jroedel@suse.de> |
History
|
|
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.