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804f98e224
Emitting a warning is overkill in intel_setup_irq_remapping() since the interrupt remapping is pre-enabled. For example, there's no guarantee that kexec will explicitly disable interrupt remapping before booting a new kernel. As a result, users are seeing warning messages like below when they kexec boot a kernel, though there is nothing wrong: DMAR-IR: IRQ remapping was enabled on dmar18 but we are not in kdump mode DMAR-IR: IRQ remapping was enabled on dmar17 but we are not in kdump mode DMAR-IR: IRQ remapping was enabled on dmar16 but we are not in kdump mode ... ... Downgrade the severity of this message to avoid user confusion. CC: Paul Menzel <pmenzel@molgen.mpg.de> Link: https://lore.kernel.org/linux-iommu/5517f76a-94ad-452c-bae6-34ecc0ec4831@molgen.mpg.de/ Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/r/20240625043912.258036-1-baolu.lu@linux.intel.com Link: https://lore.kernel.org/r/20240702130839.108139-5-baolu.lu@linux.intel.com Signed-off-by: Will Deacon <will@kernel.org>
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 reStructuredText 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.