From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> We don't have native hw xchg16 instruction, so let qspinlock generic code to deal with it. Using the full-word atomic xchg instructions implement xchg16 has the semantic risk for atomic operations. This patch cancels the dependency of on qspinlock generic code on architecture's xchg16. Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Chris Zankel <chris@xxxxxxxxxx> Cc: Max Filippov <jcmvbkbc@xxxxxxxxx> --- arch/xtensa/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 9ad6b7b82707..f19d780638f7 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -9,6 +9,7 @@ config XTENSA select ARCH_HAS_DMA_SET_UNCACHED if MMU select ARCH_USE_QUEUED_RWLOCKS select ARCH_USE_QUEUED_SPINLOCKS + select ARCH_USE_QUEUED_SPINLOCKS_XCHG32 select ARCH_WANT_FRAME_POINTERS select ARCH_WANT_IPC_PARSE_VERSION select BUILDTIME_TABLE_SORT -- 2.17.1
