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| author | Al Viro <viro@zeniv.linux.org.uk> | 2020-04-23 14:19:14 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-05-01 20:34:20 -0400 |
| commit | 516431ae669bf4e8d6e6ce5e5347e9f9739b0947 (patch) | |
| tree | 7c08cc92aa2dd36c2a9f90c65f3f3e560a838d3a /drivers/gpu/drm | |
| parent | b44f687386875b714dae2afa768e73401e45c21c (diff) | |
| download | linux-516431ae669bf4e8d6e6ce5e5347e9f9739b0947.tar.bz2 | |
i915: switch query_{topology,engine}_info() to copy_to_user()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_query.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c index ef25ce6e395e..ad8e55fe1e59 100644 --- a/drivers/gpu/drm/i915/i915_query.c +++ b/drivers/gpu/drm/i915/i915_query.c @@ -25,10 +25,6 @@ static int copy_query_item(void *query_hdr, size_t query_sz, query_sz)) return -EFAULT; - if (!access_ok(u64_to_user_ptr(query_item->data_ptr), - total_length)) - return -EFAULT; - return 0; } @@ -72,20 +68,20 @@ static int query_topology_info(struct drm_i915_private *dev_priv, topo.eu_offset = slice_length + subslice_length; topo.eu_stride = sseu->eu_stride; - if (__copy_to_user(u64_to_user_ptr(query_item->data_ptr), + if (copy_to_user(u64_to_user_ptr(query_item->data_ptr), &topo, sizeof(topo))) return -EFAULT; - if (__copy_to_user(u64_to_user_ptr(query_item->data_ptr + sizeof(topo)), + if (copy_to_user(u64_to_user_ptr(query_item->data_ptr + sizeof(topo)), &sseu->slice_mask, slice_length)) return -EFAULT; - if (__copy_to_user(u64_to_user_ptr(query_item->data_ptr + + if (copy_to_user(u64_to_user_ptr(query_item->data_ptr + sizeof(topo) + slice_length), sseu->subslice_mask, subslice_length)) return -EFAULT; - if (__copy_to_user(u64_to_user_ptr(query_item->data_ptr + + if (copy_to_user(u64_to_user_ptr(query_item->data_ptr + sizeof(topo) + slice_length + subslice_length), sseu->eu_mask, eu_length)) @@ -131,14 +127,14 @@ query_engine_info(struct drm_i915_private *i915, info.engine.engine_instance = engine->uabi_instance; info.capabilities = engine->uabi_capabilities; - if (__copy_to_user(info_ptr, &info, sizeof(info))) + if (copy_to_user(info_ptr, &info, sizeof(info))) return -EFAULT; query.num_engines++; info_ptr++; } - if (__copy_to_user(query_ptr, &query, sizeof(query))) + if (copy_to_user(query_ptr, &query, sizeof(query))) return -EFAULT; return len; |