target/linux/bcm27xx/patches-6.1/950-0078-Revert-Bluetooth-Always-request-for-user-confirmatio.patch

   1 From 506255b7590382088a17f075952f8345e69a6c94 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Mon, 1 Mar 2021 09:12:44 +0000
   4 Subject: [PATCH] Revert "Bluetooth: Always request for user
   5  confirmation for Just Works (LE SC)"
   6
   7 This reverts commit ffee202a78c2980688bc5d2f7d56480e69a5e0c9.
   8
   9 The commit "Bluetooth: Always request for user confirmation for Just
  10 Works" prevents BLE devices pairing in (at least) the Raspberry Pi OS
  11 GUI. After reverting it, pairing works again. Although this companion
  12 commit ("... (LE SC)") has not been demonstrated to be problematic,
  13 it follows the same logic and therefore could affect some use cases.
  14
  15 If another solution to the problem is found then this reversion will
  16 be removed.
  17
  18 See: https://github.com/raspberrypi/linux/issues/4139
  19
  20 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  21 ---
  22  net/bluetooth/smp.c | 5 +----
  23  1 file changed, 1 insertion(+), 4 deletions(-)
  24
  25 --- a/net/bluetooth/smp.c
  26 +++ b/net/bluetooth/smp.c
  27 @@ -2214,7 +2214,7 @@ mackey_and_ltk:
  28         if (err)
  29                 return SMP_UNSPECIFIED;
  30
  31 -       if (smp->method == REQ_OOB) {
  32 +       if (smp->method == JUST_WORKS || smp->method == REQ_OOB) {
  33                 if (hcon->out) {
  34                         sc_dhkey_check(smp);
  35                         SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK);
  36 @@ -2229,9 +2229,6 @@ mackey_and_ltk:
  37         confirm_hint = 0;
  38
  39  confirm:
  40 -       if (smp->method == JUST_WORKS)
  41 -               confirm_hint = 1;
  42 -
  43         err = mgmt_user_confirm_request(hcon->hdev, &hcon->dst, hcon->type,
  44                                         hcon->dst_type, passkey, confirm_hint);
  45         if (err)