Re: [PATCH v2 11/18] arm64: make mrs_s and msr_s macros work with LTO
On Wed, Nov 15, 2017 at 01:34:21PM -0800, Sami Tolvanen wrote: > From: Alex Matveev <alxmtvv@gmail.com> > > Use UNDEFINE_MRS_S and UNDEFINE_MSR_S to define corresponding macros > in-place and workaround gcc and clang limitations on redefining macros > across different assembler blocks.
What limitations? Can you elaborate please? Is this a fix?