1. b828d10 x86: Convert from ACCESS_ONCE to READ/WRITE_ONCE by Tom Rini · Thu May 14 08:30:04 2020 -0400
  2. 4dcacfc common: Drop linux/bitops.h from common header by Simon Glass · Sun May 10 11:40:13 2020 -0600
  3. d37de65 x86: Add atomic operations by Simon Glass · Tue Apr 28 20:25:12 2015 -0600