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    SubjectRe: [PATCH drm-misc-next v8 03/12] drm/gpuvm: export drm_gpuvm_range_valid()
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    On Thu, 2023-11-02 at 00:30 +0100, Danilo Krummrich wrote:
    > Drivers may use this function to validate userspace requests in
    > advance,
    > hence export it.
    >
    > Signed-off-by: Danilo Krummrich <dakr@redhat.com>
    Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

    > ---
    >  drivers/gpu/drm/drm_gpuvm.c | 14 +++++++++++++-
    >  include/drm/drm_gpuvm.h     |  1 +
    >  2 files changed, 14 insertions(+), 1 deletion(-)
    >
    > diff --git a/drivers/gpu/drm/drm_gpuvm.c
    > b/drivers/gpu/drm/drm_gpuvm.c
    > index 445767f8fbc4..2669f9bbc377 100644
    > --- a/drivers/gpu/drm/drm_gpuvm.c
    > +++ b/drivers/gpu/drm/drm_gpuvm.c
    > @@ -649,7 +649,18 @@ drm_gpuvm_in_kernel_node(struct drm_gpuvm
    > *gpuvm, u64 addr, u64 range)
    >         return krange && addr < kend && kstart < end;
    >  }
    >  
    > -static bool
    > +/**
    > + * drm_gpuvm_range_valid() - checks whether the given range is valid
    > for the
    > + * given &drm_gpuvm
    > + * @gpuvm: the GPUVM to check the range for
    > + * @addr: the base address
    > + * @range: the range starting from the base address
    > + *
    > + * Checks whether the range is within the GPUVM's managed
    > boundaries.
    > + *
    > + * Returns: true for a valid range, false otherwise
    > + */
    > +bool
    >  drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm,
    >                       u64 addr, u64 range)
    >  {
    > @@ -657,6 +668,7 @@ drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm,
    >                drm_gpuvm_in_mm_range(gpuvm, addr, range) &&
    >                !drm_gpuvm_in_kernel_node(gpuvm, addr, range);
    >  }
    > +EXPORT_SYMBOL_GPL(drm_gpuvm_range_valid);
    >  
    >  /**
    >   * drm_gpuvm_init() - initialize a &drm_gpuvm
    > diff --git a/include/drm/drm_gpuvm.h b/include/drm/drm_gpuvm.h
    > index 687fd5893624..13eac6f70061 100644
    > --- a/include/drm/drm_gpuvm.h
    > +++ b/include/drm/drm_gpuvm.h
    > @@ -253,6 +253,7 @@ void drm_gpuvm_init(struct drm_gpuvm *gpuvm,
    > const char *name,
    >                     const struct drm_gpuvm_ops *ops);
    >  void drm_gpuvm_destroy(struct drm_gpuvm *gpuvm);
    >  
    > +bool drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm, u64 addr, u64
    > range);
    >  bool drm_gpuvm_interval_empty(struct drm_gpuvm *gpuvm, u64 addr, u64
    > range);
    >  
    >  static inline struct drm_gpuva *

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