On Wed, May 11, 2022 at 02:05:26PM +0200, Heiko Carstens wrote: > clang fails to handle ".if" statements in inline assembly which are heavily > used in the alternatives code. > > To work around this remove this code, and enforce that users of > alternatives must specify original and alternative instruction sequences > which have identical sizes. Add a compile time check with two ".org" > statements similar to arm64. > > In result not only clang can handle this, but also quite a lot of code can > be removed. > > Signed-off-by: Heiko Carstens <hca@xxxxxxxxxxxxx> > --- > arch/s390/include/asm/alternative-asm.h | 76 +++----------------- > arch/s390/include/asm/alternative.h | 93 ++++++------------------- > arch/s390/kernel/alternative.c | 61 +--------------- > 3 files changed, 31 insertions(+), 199 deletions(-) Acked-by: Vasily Gorbik <gor@xxxxxxxxxxxxx>
