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IB/rdmavt: Macroize override checks during driver registration

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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>
This commit is contained in:
Dennis Dalessandro 2016-01-06 09:52:40 -08:00 committed by Doug Ledford
parent b1070a7a4d
commit 4997870a09
1 changed files with 9 additions and 13 deletions
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22
drivers/infiniband/sw/rdmavt/vt.c
View file

@ -64,29 +64,25 @@ static void rvt_cleanup(void)
}
module_exit(rvt_cleanup);
/*
* Check driver override. If driver passes a value use it, otherwise we use our
* own value.
*/
#define CHECK_DRIVER_OVERRIDE(rdi, x) \
rdi->ibdev.x = rdi->ibdev.x ? : rvt_ ##x
int rvt_register_device(struct rvt_dev_info *rdi)
{
if (!rdi)
return -EINVAL;
/*
* Drivers have the option to override anything in the ibdev that they
* want to specifically handle. VT needs to check for things it supports
* and if the driver wants to handle that functionality let it. We may
* come up with a better mechanism that simplifies the code at some
* point.
*/
/* DMA Operations */
rdi->ibdev.dma_ops =
rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops;
/* Protection Domain */
rdi->ibdev.alloc_pd =
rdi->ibdev.alloc_pd ? : rvt_alloc_pd;
rdi->ibdev.dealloc_pd =
rdi->ibdev.dealloc_pd ? : rvt_dealloc_pd;
CHECK_DRIVER_OVERRIDE(rdi, alloc_pd);
CHECK_DRIVER_OVERRIDE(rdi, dealloc_pd);
spin_lock_init(&rdi->n_pds_lock);
rdi->n_pds_allocated = 0;