Alex Hung 031f196d1b drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes ...

[WHY]
When PTEBufferSizeInRequests is zero, UBSAN reports the following
warning because dml_log2 returns an unexpected negative value:

  shift exponent 4294966273 is too large for 32-bit type 'int'

[HOW]

In the case PTEBufferSizeInRequests is zero, skip the dml_log2() and
assign the result directly.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

2023-03-01 22:43:19 -05:00

..

drm

drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes

2023-03-01 22:43:19 -05:00

host1x

gpu: host1x: Use tegra_dev_iommu_get_stream_id()

2023-01-27 17:41:49 +01:00

ipu-v3

gpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by_id()

2022-12-16 18:40:29 +01:00

trace

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vga

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Makefile

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