On Tue, May 05, 2020 at 03:53:45PM +0200, Arnd Bergmann wrote:
> When building for ARMv7-M, clang-9 or higher tries to unroll some loops,
> which ends up confusing the register allocator to the point of generating
> rather bad code and using more than the warning limit for stack frames:
>
> warning: stack frame size of 1200 bytes in function 'blake2b_compress'
> [-Wframe-larger-than=]
>
> Forcing it to not unroll the final loop avoids this problem.
>
> Fixes: 91d689337fe8 ("crypto: blake2b - add blake2b generic implementation")
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
> ---
> crypto/blake2b_generic.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
Patch applied. Thanks.
--
Email: Herbert Xu <herb...@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
