[PATCH 4/6] crypto/openssl: fix 3DES-CTR with big endian CPUs

[Morten Brørup]

> From: David Marchand [mailto:david.marchand at redhat.com]
> Sent: Thursday, 24 October 2024 15.30
> 
> On Thu, Oct 24, 2024 at 3:17 PM David Marchand
> <david.marchand at redhat.com> wrote:
> > @@ -1209,14 +1195,16 @@ process_openssl_cipher_des3ctr(struct
> rte_mbuf
> > *mbuf_src, uint8_t *dst,
> >         l = rte_pktmbuf_data_len(m) - offset;
> >
> >         memcpy(ctr, iv, 8);
> > +       host_ctr = rte_be_64_to_cpu(ctr);
> >
> >         for (n = 0; n < srclen; n++) {
> >                 if (n % 8 == 0) {
> > +                       ctr = rte_cpu_to_be_64(host_ctr);
> 
> Moving this here adds one uneeded extra conversion on the first
> iteration.
> So I would keep the conversion around the host_ctr variable increment,
> if you get the idea.
> 
> 
> >                         if (EVP_EncryptUpdate(ctx,
> >                                         (unsigned char *)&ebuf,
> &unused,
> >                                         (const unsigned char *)&ctr,
> 8) <= 0)
> >                                 goto process_cipher_des3ctr_err;
> > -                       ctr_inc(ctr);
> > +                       host_ctr++;
> >                 }
> >                 dst[n] = *(src++) ^ ebuf[n % 8];
> 
> --
> David Marchand

LGTM.
For the next version,
Acked-by: Morten Brørup <mb at smartsharesystems.com>