Eric Lee / smarc-fsl-linux-kernel

26 Feb, 2019

1 commit

  • 18b3af449   iommu: Fix IOMMU debugfs fallout ... Browse Code »

    A change made in the final version of IOMMU debugfs support replaced the
    public function iommu_debugfs_new_driver_dir() by the public dentry
    iommu_debugfs_dir in , but forgot to update both the
    implementation in iommu-debugfs.c, and the patch description.

    Fix this by exporting iommu_debugfs_dir, and removing the reference to
    and implementation of iommu_debugfs_new_driver_dir().

    Fixes: bad614b24293ae46 ("iommu: Enable debugfs exposure of IOMMU driver internals")
    Signed-off-by: Geert Uytterhoeven
    Acked-by: Gary R Hook
    Signed-off-by: Joerg Roedel

    Geert Uytterhoeven
     

06 Jul, 2018

1 commit

  • bad614b24   iommu: Enable debugfs exposure of IOMMU driver internals ... Browse Code »

    Provide base enablement for using debugfs to expose internal data of an
    IOMMU driver. When called, create the /sys/kernel/debug/iommu directory.

    Emit a strong warning at boot time to indicate that this feature is
    enabled.

    This function is called from iommu_init, and creates the initial DebugFS
    directory. Drivers may then call iommu_debugfs_new_driver_dir() to
    instantiate a device-specific directory to expose internal data.
    It will return a pointer to the new dentry structure created in
    /sys/kernel/debug/iommu, or NULL in the event of a failure.

    Since the IOMMU driver can not be removed from the running system, there
    is no need for an "off" function.

    Signed-off-by: Gary R Hook
    Signed-off-by: Joerg Roedel

    Gary R Hook