Revision 031f196d1b1b6d5dfcb0533b431e3ab1750e6189 authored by Alex Hung on 11 January 2023, 16:54:11 UTC, committed by Alex Deucher on 02 March 2023, 03:43:19 UTC
[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>
1 parent 01a18aa
History
File Mode Size
.gitignore -rw-r--r-- 58 bytes
Kconfig -rw-r--r-- 64.3 KB
Makefile -rw-r--r-- 1.8 KB
build-version -rwxr-xr-x 177 bytes
calibrate.c -rw-r--r-- 8.6 KB
do_mounts.c -rw-r--r-- 15.5 KB
do_mounts.h -rw-r--r-- 908 bytes
do_mounts_initrd.c -rw-r--r-- 3.7 KB
do_mounts_rd.c -rw-r--r-- 7.7 KB
init_task.c -rw-r--r-- 6.1 KB
initramfs.c -rw-r--r-- 17.2 KB
main.c -rw-r--r-- 40.1 KB
noinitramfs.c -rw-r--r-- 862 bytes
version-timestamp.c -rw-r--r-- 762 bytes
version.c -rw-r--r-- 1.3 KB

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