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IB/rdmavt: Macroize override checks during driver registration
Add a macro to cut down on writing the same lines over and over again for what will be a large number of functions that will be supported. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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1 changed files with 9 additions and 13 deletions
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@ -64,29 +64,25 @@ static void rvt_cleanup(void)
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}
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module_exit(rvt_cleanup);
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/*
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* Check driver override. If driver passes a value use it, otherwise we use our
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* own value.
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*/
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#define CHECK_DRIVER_OVERRIDE(rdi, x) \
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rdi->ibdev.x = rdi->ibdev.x ? : rvt_ ##x
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int rvt_register_device(struct rvt_dev_info *rdi)
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{
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if (!rdi)
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return -EINVAL;
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/*
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* Drivers have the option to override anything in the ibdev that they
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* want to specifically handle. VT needs to check for things it supports
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* and if the driver wants to handle that functionality let it. We may
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* come up with a better mechanism that simplifies the code at some
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* point.
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*/
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/* DMA Operations */
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rdi->ibdev.dma_ops =
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rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops;
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/* Protection Domain */
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rdi->ibdev.alloc_pd =
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rdi->ibdev.alloc_pd ? : rvt_alloc_pd;
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rdi->ibdev.dealloc_pd =
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rdi->ibdev.dealloc_pd ? : rvt_dealloc_pd;
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CHECK_DRIVER_OVERRIDE(rdi, alloc_pd);
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CHECK_DRIVER_OVERRIDE(rdi, dealloc_pd);
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spin_lock_init(&rdi->n_pds_lock);
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rdi->n_pds_allocated = 0;
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