Mesa (master): tu,radv: fix potentially wrong offset of flexible array.
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Fri Jul 3 01:09:09 UTC 2020
Module: Mesa
Branch: master
Commit: 9190cc9b151004ffec1c6f8c10983853c19af8d2
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=9190cc9b151004ffec1c6f8c10983853c19af8d2
Author: Hyunjun Ko <zzoon at igalia.com>
Date: Wed Jul 1 03:13:40 2020 +0000
tu,radv: fix potentially wrong offset of flexible array.
v2. Remove redundant memset and make the expression simpler.
Signed-off-by: Hyunjun Ko <zzoon at igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5703>
---
src/amd/vulkan/radv_descriptor_set.c | 6 ++----
src/freedreno/vulkan/tu_descriptor_set.c | 10 ++++------
2 files changed, 6 insertions(+), 10 deletions(-)
diff --git a/src/amd/vulkan/radv_descriptor_set.c b/src/amd/vulkan/radv_descriptor_set.c
index 21b9de72efb..241ce2c33c6 100644
--- a/src/amd/vulkan/radv_descriptor_set.c
+++ b/src/amd/vulkan/radv_descriptor_set.c
@@ -102,8 +102,8 @@ VkResult radv_CreateDescriptorSetLayout(
}
}
- uint32_t samplers_offset = sizeof(struct radv_descriptor_set_layout) +
- (max_binding + 1) * sizeof(set_layout->binding[0]);
+ uint32_t samplers_offset =
+ offsetof(struct radv_descriptor_set_layout, binding[max_binding + 1]);
size_t size = samplers_offset + immutable_sampler_count * 4 * sizeof(uint32_t);
if (ycbcr_sampler_count > 0) {
size += ycbcr_sampler_count * sizeof(struct radv_sampler_ycbcr_conversion) + (max_binding + 1) * sizeof(uint32_t);
@@ -146,8 +146,6 @@ VkResult radv_CreateDescriptorSetLayout(
set_layout->has_immutable_samplers = false;
set_layout->size = 0;
- memset(set_layout->binding, 0, size - sizeof(struct radv_descriptor_set_layout));
-
uint32_t buffer_count = 0;
uint32_t dynamic_offset_count = 0;
diff --git a/src/freedreno/vulkan/tu_descriptor_set.c b/src/freedreno/vulkan/tu_descriptor_set.c
index 314088cefd9..ec2a940e858 100644
--- a/src/freedreno/vulkan/tu_descriptor_set.c
+++ b/src/freedreno/vulkan/tu_descriptor_set.c
@@ -139,15 +139,16 @@ tu_CreateDescriptorSetLayout(
}
}
- uint32_t samplers_offset = sizeof(struct tu_descriptor_set_layout) +
- (max_binding + 1) * sizeof(set_layout->binding[0]);
+ uint32_t samplers_offset =
+ offsetof(struct tu_descriptor_set_layout, binding[max_binding + 1]);
+
/* note: only need to store TEX_SAMP_DWORDS for immutable samples,
* but using struct tu_sampler makes things simpler */
uint32_t size = samplers_offset +
immutable_sampler_count * sizeof(struct tu_sampler) +
ycbcr_sampler_count * sizeof(struct tu_sampler_ycbcr_conversion);
- set_layout = vk_alloc2(&device->alloc, pAllocator, size, 8,
+ set_layout = vk_zalloc2(&device->alloc, pAllocator, size, 8,
VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);
if (!set_layout)
return vk_error(device->instance, VK_ERROR_OUT_OF_HOST_MEMORY);
@@ -172,9 +173,6 @@ tu_CreateDescriptorSetLayout(
set_layout->size = 0;
set_layout->dynamic_ubo = 0;
- memset(set_layout->binding, 0,
- size - sizeof(struct tu_descriptor_set_layout));
-
uint32_t dynamic_offset_count = 0;
uint32_t buffer_count = 0;
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