[RFC PATCH 3/7] drm/ttm: TTM fault handler helpers

Thomas Hellström (VMware) thomas_os at shipmail.org
Fri Sep 13 16:08:57 UTC 2019


On 9/13/19 5:18 PM, Matthew Wilcox wrote:
> On Fri, Sep 13, 2019 at 11:32:09AM +0200, Thomas Hellström (VMware) wrote:
>> +vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf,
>> +				    pgprot_t prot,
>> +				    pgoff_t num_prefault)
>> +{
>> +	struct vm_area_struct *vma = vmf->vma;
>> +	struct vm_area_struct cvma = *vma;
>> +	struct ttm_buffer_object *bo = (struct ttm_buffer_object *)
>> +	    vma->vm_private_data;
> It's a void *.  There's no need to cast it.
>
> 	struct ttm_buffer_object *bo = vma->vm_private_data;
>
> conveys exactly the same information to both the reader and the compiler,
> except it's all on one line instead of split over two.

Indeed.

However since this is mostly a restructuring commit and there are a 
couple of these present in the code I'd like to keep cleanups separate.

Thanks,
Thomas




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