On Fri, Feb 26, 2016 at 01:46:26PM +0100, Arnd Bergmann wrote: > A wrapper around the umull assembly instruction might reuse > the input register as an output, which is undefined on > some ARM machines, as pointed out by this assembler warning: > > CC lib/mpi/generic_mpih-mul1.o > /tmp/ccxJuxIy.s: Assembler messages: > /tmp/ccxJuxIy.s:53: rdhi, rdlo and rm must all be different > CC lib/mpi/generic_mpih-mul2.o > /tmp/ccI0scAD.s: Assembler messages: > /tmp/ccI0scAD.s:53: rdhi, rdlo and rm must all be different > CC lib/mpi/generic_mpih-mul3.o > /tmp/ccMvVQcp.s: Assembler messages: > /tmp/ccMvVQcp.s:53: rdhi, rdlo and rm must all be different > > This changes the constraints to force different registers to > be used as output. > > Signed-off-by: Arnd Bergmann <[email protected]>
Both applied. -- Email: Herbert Xu <[email protected]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
