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drm/vmwgfx: Use struct_size() helper

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Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.

This code was detected with the help of Coccinelle and, audited and
fixed manually.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
Gustavo A. R. Silva 2020-06-17 16:51:44 -05:00 committed by Roland Scheidegger
parent dc100bc8fa
commit 4f88b4ccb7
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
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@ -1969,7 +1969,7 @@ static int vmw_surface_dirty_alloc(struct vmw_resource *res)
num_mip = 1;
num_subres = num_layers * num_mip;
dirty_size = sizeof(*dirty) + num_subres * sizeof(dirty->boxes[0]);
dirty_size = struct_size(dirty, boxes, num_subres);
acc_size = ttm_round_pot(dirty_size);
ret = ttm_mem_global_alloc(vmw_mem_glob(res->dev_priv),
acc_size, &ctx);