efi-net-fix.patch

   1 diff -ur grub-2.04.orig/grub-core/net/drivers/efi/efinet.c grub-2.04/grub-core/net/drivers/efi/efinet.c
   2 --- grub-2.04.orig/grub-core/net/drivers/efi/efinet.c   2019-08-18 15:57:09.662000000 +0200
   3 +++ grub-2.04/grub-core/net/drivers/efi/efinet.c        2019-08-18 15:57:25.366000000 +0200
   4 @@ -330,6 +330,7 @@
   5  {
   6    struct grub_net_card *card;
   7    grub_efi_device_path_t *dp;
   8 +  grub_efi_simple_network_t *net;
   9
  10    dp = grub_efi_get_device_path (hnd);
  11    if (! dp)
  12 @@ -383,6 +384,21 @@
  13                                     &pxe_mode->dhcp_ack,
  14                                     sizeof (pxe_mode->dhcp_ack),
  15                                     1, device, path);
  16 +    net = grub_efi_open_protocol (card->efi_handle, &net_io_guid,
  17 +                                 GRUB_EFI_OPEN_PROTOCOL_BY_EXCLUSIVE);
  18 +    if (net) {
  19 +      if (net->mode->state == GRUB_EFI_NETWORK_STOPPED
  20 +         && efi_call_1 (net->start, net) != GRUB_EFI_SUCCESS)
  21 +       continue;
  22 +
  23 +      if (net->mode->state == GRUB_EFI_NETWORK_STOPPED)
  24 +       continue;
  25 +
  26 +      if (net->mode->state == GRUB_EFI_NETWORK_STARTED
  27 +         && efi_call_3 (net->initialize, net, 0, 0) != GRUB_EFI_SUCCESS)
  28 +       continue;
  29 +      card->efi_net = net;
  30 +    }
  31      return;
  32    }
  33  }