| Message ID | 20200916131430.6.I5068c01cae3cea674a96e103a0cf4d8c81425a4f@changeid (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Bluetooth: Add new MGMT interface for advertising add | expand |
Hi Daniel,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on bluetooth-next/master]
[also build test WARNING on next-20200916]
[cannot apply to net-next/master net/master v5.9-rc5]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Daniel-Winkler/Bluetooth-Add-new-MGMT-interface-for-advertising-add/20200917-042141
base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master
config: x86_64-randconfig-s022-20200917 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.2-201-g24bdaac6-dirty
# save the attached .config to linux build tree
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
net/bluetooth/mgmt.c:3647:29: sparse: sparse: restricted __le16 degrades to integer
net/bluetooth/mgmt.c:4104:9: sparse: sparse: cast to restricted __le32
>> net/bluetooth/mgmt.c:4386:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] type @@ got int @@
>> net/bluetooth/mgmt.c:4386:27: sparse: expected restricted __le16 [usertype] type
>> net/bluetooth/mgmt.c:4386:27: sparse: got int
# https://github.com/0day-ci/linux/commit/171d4465b1f2811c76267c2f0acbcd0f77b5e99a
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Daniel-Winkler/Bluetooth-Add-new-MGMT-interface-for-advertising-add/20200917-042141
git checkout 171d4465b1f2811c76267c2f0acbcd0f77b5e99a
vim +4386 net/bluetooth/mgmt.c
4360
4361 static int read_controller_cap(struct sock *sk, struct hci_dev *hdev,
4362 void *data, u16 len)
4363 {
4364 u8 i = 0;
4365
4366 /* This command will return its data in TVL format. Currently we only
4367 * wish to include LE tx power parameters, so this struct can be given
4368 * a fixed size as data types are not changing.
4369 */
4370 struct {
4371 struct mgmt_tlv entry;
4372 __s8 value;
4373 } __packed cap[2];
4374
4375 BT_DBG("request for %s", hdev->name);
4376 memset(cap, 0, sizeof(cap));
4377
4378 hci_dev_lock(hdev);
4379
4380 /* Append LE tx power bounds */
4381 cap[i].entry.type = MGMT_CAP_LE_TX_PWR_MIN;
4382 cap[i].entry.length = sizeof(__s8);
4383 cap[i].value = hdev->min_le_tx_power;
4384 i++;
4385
> 4386 cap[i].entry.type = MGMT_CAP_LE_TX_PWR_MAX;
4387 cap[i].entry.length = sizeof(__s8);
4388 cap[i].value = hdev->max_le_tx_power;
4389 i++;
4390
4391 hci_dev_unlock(hdev);
4392
4393 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_CONTROLLER_CAP,
4394 MGMT_STATUS_SUCCESS, cap, sizeof(cap));
4395 }
4396
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h index db64cf4747554c..9aa792e5efc8d0 100644 --- a/include/net/bluetooth/mgmt.h +++ b/include/net/bluetooth/mgmt.h @@ -815,6 +815,15 @@ struct mgmt_rp_add_ext_adv_data { __u8 instance; } __packed; +#define MGMT_CAP_LE_TX_PWR_MIN 0x0000 +#define MGMT_CAP_LE_TX_PWR_MAX 0x0001 + +#define MGMT_OP_READ_CONTROLLER_CAP 0x0056 +#define MGMT_OP_READ_CONTROLLER_CAP_SIZE 0 +struct mgmt_rp_read_controller_cap { + __u8 capabilities[0]; +} __packed; + #define MGMT_EV_CMD_COMPLETE 0x0001 struct mgmt_ev_cmd_complete { __le16 opcode; diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index b9347ff1a1e961..d2e5bc4b3ddb8f 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -124,6 +124,7 @@ static const u16 mgmt_commands[] = { MGMT_OP_REMOVE_ADV_MONITOR, MGMT_OP_ADD_EXT_ADV_PARAMS, MGMT_OP_ADD_EXT_ADV_DATA, + MGMT_OP_READ_CONTROLLER_CAP, }; static const u16 mgmt_events[] = { @@ -181,6 +182,7 @@ static const u16 mgmt_untrusted_commands[] = { MGMT_OP_READ_EXP_FEATURES_INFO, MGMT_OP_READ_DEF_SYSTEM_CONFIG, MGMT_OP_READ_DEF_RUNTIME_CONFIG, + MGMT_OP_READ_CONTROLLER_CAP, }; static const u16 mgmt_untrusted_events[] = { @@ -4356,6 +4358,42 @@ static int remove_adv_monitor(struct sock *sk, struct hci_dev *hdev, return err; } +static int read_controller_cap(struct sock *sk, struct hci_dev *hdev, + void *data, u16 len) +{ + u8 i = 0; + + /* This command will return its data in TVL format. Currently we only + * wish to include LE tx power parameters, so this struct can be given + * a fixed size as data types are not changing. + */ + struct { + struct mgmt_tlv entry; + __s8 value; + } __packed cap[2]; + + BT_DBG("request for %s", hdev->name); + memset(cap, 0, sizeof(cap)); + + hci_dev_lock(hdev); + + /* Append LE tx power bounds */ + cap[i].entry.type = MGMT_CAP_LE_TX_PWR_MIN; + cap[i].entry.length = sizeof(__s8); + cap[i].value = hdev->min_le_tx_power; + i++; + + cap[i].entry.type = MGMT_CAP_LE_TX_PWR_MAX; + cap[i].entry.length = sizeof(__s8); + cap[i].value = hdev->max_le_tx_power; + i++; + + hci_dev_unlock(hdev); + + return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_CONTROLLER_CAP, + MGMT_STATUS_SUCCESS, cap, sizeof(cap)); +} + static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status, u16 opcode, struct sk_buff *skb) { @@ -8208,6 +8246,7 @@ static const struct hci_mgmt_handler mgmt_handlers[] = { HCI_MGMT_VAR_LEN }, { add_ext_adv_data, MGMT_ADD_EXT_ADV_DATA_SIZE, HCI_MGMT_VAR_LEN }, + { read_controller_cap, MGMT_OP_READ_CONTROLLER_CAP_SIZE }, }; void mgmt_index_added(struct hci_dev *hdev)