--- zzzz-none-000/linux-3.10.107/arch/c6x/include/asm/bitops.h 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/arch/c6x/include/asm/bitops.h 2021-02-04 17:41:59.000000000 +0000 @@ -14,14 +14,8 @@ #ifdef __KERNEL__ #include - #include - -/* - * clear_bit() doesn't provide any barrier for the compiler. - */ -#define smp_mb__before_clear_bit() barrier() -#define smp_mb__after_clear_bit() barrier() +#include /* * We are lucky, DSP is perfect for bitops: do it in 3 cycles