On Mon, Jan 20, 2020 at 03:43:27PM +0300, Alexey Brodkin wrote:
The following bitops are implemented pretty similarly for many arches and now when we faced a need in them on ARC I guess there's no point in copy-pasting them yet another time but instead it might be better re-use generic version from the Linux kernel.
Since we had non of those bitops for ARC inclusion of imported header works perfectly fine. As for other arches I do see they use a bit different implementation but those might be just older versions etc.
Sobefore breaking stuff for other arches I'd like to get some feedback from maintainers. Or we may just import proposed header and switch to its usage arch-by-arch whenever people feel kile cleaning-up their bitops.
Alexey Brodkin (2): include: Import non-atomic.h from Linux ARC: Add support of bitops via generic implementation
arch/arc/include/asm/bitops.h | 1 + include/asm-generic/bitops/non-atomic.h | 109 ++++++++++++++++++++++++++++++++ 2 files changed, 110 insertions(+) create mode 100644 include/asm-generic/bitops/non-atomic.h
I would like to see this as a series to re-sync include/asm-generic/bitops/ with a more recent Linux Kernel release (it's from v4.2.3 per git log) and then add non-atomic.h and update nios2 to use it instead of its own copy. Thanks!