Marian Buschsieweke 8854255d7a tests/bitarithm_timings: Fix use of volatile ... The tests used the volatile qualifier for two this: 1. Prevent the compiler to optimize out calls to the inline-able functions bitarithm_msb, bitarithm_lsb, bitarithm_bits_set 2. Communication between IRQ context and thread context While the first use is valid, the second is dangerous, see [1], [2], [3], [4]. This commit replaces the second use with C11 atomics, which were explicitly added to the C standard to address this use case. [1]: https://www.kernel.org/doc/html/latest/process/volatile-considered-harmful.html [2]: http://c.isvolatileusefulwiththreads.com/ [3]: https://web.archive.org/web/20181124154026/http://software.intel.com/en-us/blogs/2007/11/30/volatile-almost-useless-for-multi-threaded-programming/ [4]: https://blog.regehr.org/archives/28		2019-11-15 09:22:18 +01:00
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tests
main.c	tests/bitarithm_timings: Fix use of volatile	2019-11-15 09:22:18 +01:00
Makefile