Re: [PATCH v5 5/5] vfio: selftests: add end of address space DMA map/unmap tests

[David Matlack <dmatlack@google.com>]

On 2025-10-27 10:33 AM, Alex Mastro wrote:
> Add tests which validate dma map/unmap at the end of address space. Add
> negative test cases for checking that overflowing ioctl args fail with
> the expected errno.
> 
> Signed-off-by: Alex Mastro <amastro@fb.com>

Reviewed-by: David Matlack <dmatlack@google.com>

> +FIXTURE_SETUP(vfio_dma_map_limit_test)
> +{
> +	u64 region_size = getpagesize();

nit: Add a blank line after variable declarations.

> +	/*
> +	 * Over-allocate mmap by double the size to provide enough backing vaddr
> +	 * for overflow tests
> +	 */
> +	self->mmap_size = 2 * region_size;
> +	struct vfio_dma_region *region = &self->region;

nit: Declare variables at the beginning of blocks.