2022-12-05 18:06:18

by Luiz Augusto von Dentz

[permalink] [raw]
Subject: [PATCH] Bluetooth: btusb: Fix new sparce warnings

From: Luiz Augusto von Dentz <[email protected]>

This fix the following warnings detect with make W=1:

drivers/bluetooth/btusb.c:2212:9: warning: cast to restricted __le16
drivers/bluetooth/btusb.c:2212:9: warning: cast to restricted __le16
drivers/bluetooth/btusb.c:2245:18: warning: cast to restricted __le16
drivers/bluetooth/btusb.c:2249:18: warning: cast to restricted __le16
drivers/bluetooth/btusb.c:2253:18: warning: cast to restricted __le16
drivers/bluetooth/btusb.c:2257:18: warning: cast to restricted __le16
drivers/bluetooth/btusb.c:2261:18: warning: cast to restricted __le16
drivers/bluetooth/btusb.c:2267:18: warning: cast to restricted __le16

Signed-off-by: Luiz Augusto von Dentz <[email protected]>
---
drivers/bluetooth/btusb.c | 25 +++++++++++++------------
1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index d57571cc82d4..422c878a9500 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2201,18 +2201,19 @@ static int btusb_setup_csr(struct hci_dev *hdev)
return err;
}

- if (skb->len != sizeof(struct hci_rp_read_local_version)) {
+ rp = skb_pull_data(skb, sizeof(*rp));
+ if (!rp) {
bt_dev_err(hdev, "CSR: Local version length mismatch");
kfree_skb(skb);
return -EIO;
}

- rp = (struct hci_rp_read_local_version *)skb->data;
+ bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
+ rp->hci_ver, le16_to_cpu(rp->hci_rev));

- bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x; LMP ver=%u subver=%04x; manufacturer=%u",
- le16_to_cpu(rp->hci_ver), le16_to_cpu(rp->hci_rev),
- le16_to_cpu(rp->lmp_ver), le16_to_cpu(rp->lmp_subver),
- le16_to_cpu(rp->manufacturer));
+ bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
+ rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
+ le16_to_cpu(rp->manufacturer));

/* Detect a wide host of Chinese controllers that aren't CSR.
*
@@ -2242,29 +2243,29 @@ static int btusb_setup_csr(struct hci_dev *hdev)
* third-party BT 4.0 dongle reuses it.
*/
else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_1)
+ rp->hci_ver > BLUETOOTH_VER_1_1)
is_fake = true;

else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_2)
+ rp->hci_ver > BLUETOOTH_VER_1_2)
is_fake = true;

else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_0)
+ rp->hci_ver > BLUETOOTH_VER_2_0)
is_fake = true;

else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_1)
+ rp->hci_ver > BLUETOOTH_VER_2_1)
is_fake = true;

else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0)
+ rp->hci_ver > BLUETOOTH_VER_4_0)
is_fake = true;

/* Other clones which beat all the above checks */
else if (bcdDevice == 0x0134 &&
le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
- le16_to_cpu(rp->hci_ver) == BLUETOOTH_VER_2_0)
+ rp->hci_ver == BLUETOOTH_VER_2_0)
is_fake = true;

if (is_fake) {
--
2.37.3


2022-12-05 18:55:44

by bluez.test.bot

[permalink] [raw]
Subject: RE: Bluetooth: btusb: Fix new sparce warnings

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=701905

---Test result---

Test Summary:
CheckPatch PASS 0.69 seconds
GitLint PASS 0.34 seconds
SubjectPrefix PASS 0.12 seconds
BuildKernel PASS 33.98 seconds
BuildKernel32 PASS 30.57 seconds
TestRunnerSetup PASS 425.75 seconds
TestRunner_l2cap-tester PASS 15.69 seconds
TestRunner_iso-tester PASS 15.36 seconds
TestRunner_bnep-tester PASS 5.36 seconds
TestRunner_mgmt-tester PASS 104.02 seconds
TestRunner_rfcomm-tester PASS 9.19 seconds
TestRunner_sco-tester PASS 8.69 seconds
TestRunner_ioctl-tester PASS 9.90 seconds
TestRunner_mesh-tester PASS 6.75 seconds
TestRunner_smp-tester PASS 8.48 seconds
TestRunner_userchan-tester PASS 5.59 seconds
IncrementalBuild PASS 31.46 seconds



---
Regards,
Linux Bluetooth