Re: [PATCH 2/2] crypto: make the sha1 library optional

On Sat, Jul 09, 2022 at 02:18:49PM -0700, Eric Biggers wrote:

From: Eric Biggers <redacted>

Since the Linux RNG no longer uses sha1_transform(), the SHA-1 library
is no longer needed unconditionally.  Make it possible to build the
Linux kernel without the SHA-1 library by putting it behind a kconfig
option, and selecting this new option from the kconfig options that gate
the remaining users: CRYPTO_SHA1 for crypto/sha1_generic.c, BPF for
kernel/bpf/core.c, and IPV6 for net/ipv6/addrconf.c.

Unfortunately, since BPF is selected by NET, for now this can only make
a difference for kernels built without networking support.

Seems like a step in the right direction, thanks.

Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>