On Mon, Jul 11, 2022 at 11:22 AM Jakub Kicinski <kuba@xxxxxxxxxx> wrote: > > On Sat, 9 Jul 2022 14:18:49 -0700 Eric Biggers wrote: > > 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. > > > diff --git a/init/Kconfig b/init/Kconfig > > index c984afc489dead..d8d0b4bdfe4195 100644 > > --- a/init/Kconfig > > +++ b/init/Kconfig > > @@ -1472,6 +1472,7 @@ config HAVE_PCSPKR_PLATFORM > > # interpreter that classic socket filters depend on > > config BPF > > bool > > + select CRYPTO_LIB_SHA1 > > > > Let's give it an explicit CC: bpf@ > > > diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig > > index bf2e5e5fe14273..658bfed1df8b17 100644 > > --- a/net/ipv6/Kconfig > > +++ b/net/ipv6/Kconfig > > @@ -7,6 +7,7 @@ > > menuconfig IPV6 > > tristate "The IPv6 protocol" > > default y > > + select CRYPTO_LIB_SHA1 > > help > > Support for IP version 6 (IPv6). > > FWIW: > Acked-by: Jakub Kicinski <kuba@xxxxxxxxxx> Acked-by: Alexei Starovoitov <ast@xxxxxxxxxx> I believe I found the right full patch set in lore. In the future (if there are follow ups) please cc the full patchset to us. Thanks!
