Merge tag 'compiler-attributes-for-linus-v4.20-rc2' of https://github.com/ojeda/linux

Pull compiler attribute fixlets from Miguel Ojeda:
 "Small improvements to Compiler Attributes:

   - Define asm_volatile_goto for non-gcc compilers (Nick Desaulniers)

   - Improve the explanation of compiler_attributes.h"

* tag 'compiler-attributes-for-linus-v4.20-rc2' of https://github.com/ojeda/linux:
  Compiler Attributes: improve explanation of header
  include/linux/compiler*.h: define asm_volatile_goto