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author | Will Deacon <will@kernel.org> | 2019-12-19 19:22:56 +0300 |
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committer | Will Deacon <will@kernel.org> | 2020-04-16 14:28:34 +0300 |
commit | 549887271a961a79375b2a55bf675515b9107778 (patch) | |
tree | 94e5eacf68de2e01130f8f9767dbff130e8a3de7 /tools/perf/scripts/python/mem-phys-addr.py | |
parent | dee081bf8f824cabeb7c7495367d5dad0a444eb1 (diff) | |
download | linux-549887271a961a79375b2a55bf675515b9107778.tar.xz |
locking/barriers: Use '__unqual_scalar_typeof' for load-acquire macros
Passing volatile-qualified pointers to the asm-generic implementations of
the load-acquire macros results in a re-load from the stack due to the
temporary result variable inheriting the volatile semantics thanks to the
use of 'typeof()'.
Define these temporary variables using 'unqual_scalar_typeof' to drop
the volatile qualifier in the case that they are scalar types.
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/mem-phys-addr.py')
0 files changed, 0 insertions, 0 deletions