linux-test-project/ltp
Dec 2024 – Jan 2026
2 Months active
Languages Used
CShell
Technical Skills
C ProgrammingKernel TestingShell ScriptingSystem AdministrationSystem ProgrammingC programming
Po-Hsu Lin
PROFILE
Po-hsu Lin
Worked on linux-test-project/ltp and linux-riscv/linux, focusing on kernel module security and test infrastructure reliability. Developed module signature enforcement improvements by validating kernel configuration and gating tests based on CONFIG_MODULE_SIG_FORCE and module.sig_enforce, using C and Shell scripting to reduce false failures and clarify test expectations. Enhanced security compliance by implementing lockdown-aware module loading, ensuring modules are not loaded in Secure Boot or Lockdown states and providing actionable error messaging. Addressed cross-environment test reliability in linux-riscv/linux by updating bareudp test scripts to use bash, resolving interpreter compatibility issues and improving consistency in system administration and kernel testing workflows.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
5Total
Bugs
1
Commits
5
Features
2
Lines of code
93
Activity Months3
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1662 peopleSame Organization
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1286
Tiezhu YangMember
Ben CopelandMember
Fushuai WangMember
Sebastian ChladMember
Florian SchmausMember
Jan KaraMember
Sven SchnelleMember
Chenghao DuanMember
Dan CarpenterMember
Work History
January 2026
2 Commits • 1 Features
Jan 1, 20262026-01 Monthly Summary: linux-test-project/ltp delivered lockdown-aware kernel module loading to enforce Secure Boot policies. Implemented logic to skip module load attempts when in Lockdown or Secure Boot mode and validated lockdown status with actionable error messaging. This aligns with existing fw_load behavior and reduces risk of unsigned or rejected modules in secure environments, enhancing security and system stability.
2 Commits • 1 Features
Jan 1, 20262026-01 Monthly Summary: linux-test-project/ltp delivered lockdown-aware kernel module loading to enforce Secure Boot policies. Implemented logic to skip module load attempts when in Lockdown or Secure Boot mode and validated lockdown status with actionable error messaging. This aligns with existing fw_load behavior and reduces risk of unsigned or rejected modules in secure environments, enhancing security and system stability.
January 2026
October 2025
1 Commits
Oct 1, 2025October 2025 (2025-10) monthly summary for linux-riscv/linux: primary focus on stabilizing test infrastructure; no new features released; one major bug fix improving cross-environment test reliability in the selftests/bareudp suite.
October 2025
1 Commits
Oct 1, 2025October 2025 (2025-10) monthly summary for linux-riscv/linux: primary focus on stabilizing test infrastructure; no new features released; one major bug fix improving cross-environment test reliability in the selftests/bareudp suite.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for linux-test-project/ltp: Implemented Module Signature Enforcement Testing Improvements to enhance reliability of kernel module signing tests by validating CONFIG_MODULE_SIG_FORCE and module.sig_enforce in /proc/cmdline, and by gating tests when kernel config diverges. Added explicit module signature enforcement check to testcases. This reduces false failures, improves CI stability, and clarifies test expectations across configurations.
2 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for linux-test-project/ltp: Implemented Module Signature Enforcement Testing Improvements to enhance reliability of kernel module signing tests by validating CONFIG_MODULE_SIG_FORCE and module.sig_enforce in /proc/cmdline, and by gating tests when kernel config diverges. Added explicit module signature enforcement check to testcases. This reduces false failures, improves CI stability, and clarifies test expectations across configurations.
December 2024
Activity
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Quality Metrics
Correctness98.0%
Maintainability84.0%
Architecture84.0%
Performance88.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CShell
Technical Skills
C ProgrammingC programmingKernel TestingShell ScriptingSystem AdministrationSystem ProgrammingTestingdevice driver developmentkernel developmentsecurity compliance
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
linux-riscv/linux
Oct 2025 – Oct 2025
1 Month active
Languages Used
Shell
Technical Skills
Shell ScriptingSystem AdministrationTesting