https://bugzilla.kernel.org/show_bug.cgi?id=203571
Bug ID: 203571
Summary: may_use_simd() returns false in kworkers
Product: Platform Specific/Hardware
Version: 2.5
Kernel Version: 4.19
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: PPC-64
Assignee: platform_ppc...@kernel-bugs.osdl.org
Reporter: sland...@gmail.com
Regression: No
This patch optimizing chacha20 for WireGuard
https://github.com/shawnl/WireGuard/commit/3e02fce92a14cba7b7d1e2733def3a51bec97498
doesn't work because may_use_simd() is always returning false in kworkers. If I
remove the check everything seems to work fine.
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