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| author |   Heiko Carstens <hca@linux.ibm.com> | 2025-02-07 15:48:55 +0100 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2025-03-04 17:18:05 +0100 |
| commit | 949b73c9902613bddb789d9375981afbffe596fc (patch) | |
| tree | e96f5d7cf029f97be82bbc5683f59e5be4a768b7 /rust/kernel/ssh:/git@git.zx2c4.com | |
| parent | s390/cpufeature: Convert MACHINE_HAS_EDAT2 to cpu_has_edat2() (diff) | |
s390/cpufeature: Convert MACHINE_HAS_IDTE to cpu_has_idte()
Convert MACHINE_HAS_... to cpu_has_...() which uses test_facility() instead
of testing the machine_flags lowcore member if the feature is present.
test_facility() generates better code since it results in a static branch
without accessing memory. The branch is patched via alternatives by the
decompressor depending on the availability of the required facility.
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'rust/kernel/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions