On Tue, Feb 28, 2017 at 02:36:57PM +0000, Ard Biesheuvel wrote: > The accelerated CRC32 module for ARM may use either the scalar CRC32 > instructions, the NEON 64x64 to 128 bit polynomial multiplication > (vmull.p64) instruction, or both, depending on what the current CPU > supports. > > However, this also requires support in binutils, and as it turns out, > versions of binutils exist that support the vmull.p64 instruction but > not the crc32 instructions. > > So refactor the Makefile logic so that this module only gets built if > binutils has support for both. > > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> Patch applied. Thanks. -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
