[PATCH net-next v2 0/6] Bluetooth: convert remaining bluetooth socket families to getsockopt_iter

[Breno Leitao <leitao@debian.org>]

Continue the conversion to .getsockopt_iter for the Bluetooth socket
families: hci_sock, ISO, RFCOMM, SCO and L2CAP. The first patch is a
small precursor that fixes a long-standing 1-byte put_user write in
hci_sock_getsockopt_old() so the subsequent conversion stays mechanical.

The riskiest change in this series is the SCO BT_CODEC conversion: it
is the only one that drops an open-coded ptr cursor in favour of
relying on iter_out advancing naturally on every copy_to_iter() call.
Every other socket option is a near-mechanical s/copy_to_user/
copy_to_iter/ rewrite, but BT_CODEC walks a variable-length list of
codecs + capabilities and previously tracked its own write offset by
hand. Getting the cursor semantics wrong here would silently truncate
or misalign user-visible codec data.

For more context about the motivation for this change, please check
commit 67fab22a7ad ("net: add getsockopt_iter callback to proto_ops")

Signed-off-by: Breno Leitao <leitao@debian.org>
---
Changes in v2:
- rebase the tree on top of bluetooth-next.
- Remove the selftest, which was mixing network and bluetooth together.
- Link to v1: https://patch.msgid.link/20260511-getsock_three-v1-0-1461fa8786ab@debian.org

To: Marcel Holtmann <marcel@holtmann.org>
To: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc: linux-bluetooth@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

---
Breno Leitao (6):
      Bluetooth: hci_sock: write the full optval for getsockopt
      Bluetooth: hci_sock: convert to getsockopt_iter
      Bluetooth: ISO: convert to getsockopt_iter
      Bluetooth: RFCOMM: convert to getsockopt_iter
      Bluetooth: L2CAP: convert to getsockopt_iter
      Bluetooth: SCO: convert to getsockopt_iter

 net/bluetooth/hci_sock.c    | 26 +++++++++++--------
 net/bluetooth/iso.c         | 27 ++++++++++----------
 net/bluetooth/l2cap_sock.c  | 61 +++++++++++++++++++++++++++------------------
 net/bluetooth/rfcomm/sock.c | 30 ++++++++++++----------
 net/bluetooth/sco.c         | 59 ++++++++++++++++++++++---------------------
 5 files changed, 114 insertions(+), 89 deletions(-)
---
base-commit: c2f0079e8c42fd6814c8d6b1491e3ce0a0e3b3fa
change-id: 20260511-getsock_three-d0d7f1b2629e

Best regards,
--  
Breno Leitao <leitao@debian.org>