[PATCH v2 0/6] net: Port NFS to lwIP

[Andrew Goodbody]

This series ports the existing NFS code so that it can be used with both
the legacy network code and also with lwIP.
Firstly some legacy network code, mostly variables, is moved into common
files so that it is accessible to lwIP.
Secondly the NFS code is refactored so that the parts that are not
specific to the network code can be shared with both network
implementations.
Finally the lwIP specific parts needed to interface the NFS shared code
to that network stack are added and enabled.

Signed-off-by: Andrew Goodbody <andrew.goodbody at linaro.org>
---
Changes in v2:
- Corrected capitalisation of lwIP
- Stopped moving some variables into common code that are not used by
  lwIP
- NULL check a pbuf after allocation and before use
- Add patch to enable CMD_NFS on qemu_arm64_lwip_defconfig
- Link to v1: https://lore.kernel.org/r/20251208-lwip_nfs-v1-0-1f5d31e15d00@linaro.org

---
Andrew Goodbody (6):
      net: move net_state to net-common
      net: Move some variables to net-common files
      net: nfs: Add licence header
      net: nfs: Move most NFS code to common files
      net: lwip: nfs: Port the NFS code to work with lwIP
      configs: qemu_arm64_lwip_defconfig: enable CMD_NFS

 cmd/Kconfig                       |  28 +-
 cmd/lwip/Makefile                 |   1 +
 cmd/lwip/nfs.c                    |  11 +
 configs/qemu_arm64_lwip_defconfig |   1 +
 include/net-common.h              |  29 +-
 include/net-legacy.h              |  22 -
 include/net-lwip.h                |   1 +
 net/Makefile                      |   1 +
 net/lwip/Makefile                 |   1 +
 net/lwip/net-lwip.c               |   5 -
 net/lwip/nfs.c                    | 286 +++++++++++++
 net/net-common.c                  |  12 +
 net/net.c                         |  12 -
 net/nfs-common.c                  | 863 ++++++++++++++++++++++++++++++++++++++
 net/nfs-common.h                  | 123 ++++++
 net/nfs.c                         | 849 +------------------------------------
 net/nfs.h                         |  59 ---
 17 files changed, 1355 insertions(+), 949 deletions(-)
---
base-commit: 59f9fcc1f514762674ac07c13c2a85f7aace7250
change-id: 20251029-lwip_nfs-5385efca71bc

Best regards,
-- 
Andrew Goodbody <andrew.goodbody at linaro.org>