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| author | Low-power <[email protected]> | 2023-03-11 01:35:00 +0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2023-03-10 09:35:00 -0800 |
| commit | 589f59b52af86455cf71421e63c34557c7ee6f91 (patch) | |
| tree | 0350600175b27662916d2b69e18ef57011043985 /config/progtest.m4 | |
| parent | 7316fdd1c0c74074c4b48a499afe4e444aa42914 (diff) | |
Workaround for Linux PowerPC GPL-only cpu_has_feature()
Linux since 4.7 makes interface 'cpu_has_feature' to use jump labels on
powerpc if CONFIG_JUMP_LABEL_FEATURE_CHECKS is enabled, in this case
however the inline function references GPL-only symbol
'cpu_feature_keys'.
ZFS currently uses 'cpu_has_feature' either directly or indirectly from
several places; while it is unknown how this issue didn't break ZFS on
64-bit little-endian powerpc, it is known to break ZFS with many Linux
versions on both 32-bit and 64-bit big-endian powerpc.
Until this issue is fixed in Linux, we have to workaround it by
overriding affected inline functions without depending on
'cpu_feature_keys'.
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: WHR <[email protected]>
Closes #14590
Diffstat (limited to 'config/progtest.m4')
0 files changed, 0 insertions, 0 deletions