Re: [PATCH v3 1/3] powerpc/uaccess: Don't use "m<>" constraint with GCC 4.9

2020-12-10 Thread Michael Ellerman
On Thu, 22 Oct 2020 09:29:19 + (UTC), Christophe Leroy wrote: > GCC 4.9 sometimes fails to build with "m<>" constraint in > inline assembly. > > CC lib/iov_iter.o > In file included from ./arch/powerpc/include/asm/cmpxchg.h:6:0, > from

[PATCH v3 1/3] powerpc/uaccess: Don't use "m<>" constraint with GCC 4.9

2020-10-22 Thread Christophe Leroy
GCC 4.9 sometimes fails to build with "m<>" constraint in inline assembly. CC lib/iov_iter.o In file included from ./arch/powerpc/include/asm/cmpxchg.h:6:0, from ./arch/powerpc/include/asm/atomic.h:11, from ./include/linux/atomic.h:7, from