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| author | Bradley Morgan <brads@mainlining.org> | 2026-10-05 12:07:00 +0000 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2026-10-12 16:36:53 -0700 |
| commit | 558ccc91ddf98d58ae726ed7ccaf5838f284084f (patch) | |
| tree | 21b27d5f5edb4d15e76b94b0ff227ddd0c36be08 /tools/perf/scripts/python/bin/stackcollapse-report | |
| parent | 2213947c08fa9c44595aa0e84e359985ed40d3b6 (diff) | |
| download | linux-558ccc91ddf98d58ae726ed7ccaf5838f284084f.tar.gz linux-558ccc91ddf98d58ae726ed7ccaf5838f284084f.zip | |
xtensa: Emulate two-byte cmpxchg
Xtensa has no two-byte atomic compare and swap, so the __cmpxchg()
switch lets case 2 fall through to __cmpxchg_called_with_bad_pointer(),
which is declared but never defined, so a two-byte cmpxchg() fails
at link time.
Route case 2 through the new cmpxchg_emu_u16(), which takes the
old and new values as unsigned long and narrows them itself, so
the call needs no extra casts.
Signed-off-by: Bradley Morgan <brads@mainlining.org>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
0 files changed, 0 insertions, 0 deletions