diff options
| author | Raghavendra Rao Ananta <[email protected]> | 2022-06-15 18:57:06 +0000 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2022-06-23 10:26:41 -0400 |
| commit | 9e2f6498efbbc880d7caa7935839e682b64fe5a6 (patch) | |
| tree | a552aa7ce63bd9b0997b9ef61b43b2ef35eeda14 /include/linux/fpga/fpga-mgr.h | |
| parent | 933b5f9f98da29af646b51b36a0753692908ef64 (diff) | |
selftests: KVM: Handle compiler optimizations in ucall
The selftests, when built with newer versions of clang, is found
to have over optimized guests' ucall() function, and eliminating
the stores for uc.cmd (perhaps due to no immediate readers). This
resulted in the userspace side always reading a value of '0', and
causing multiple test failures.
As a result, prevent the compiler from optimizing the stores in
ucall() with WRITE_ONCE().
Suggested-by: Ricardo Koller <[email protected]>
Suggested-by: Reiji Watanabe <[email protected]>
Signed-off-by: Raghavendra Rao Ananta <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions