[PW_SID:1085337] Bluetooth: btusb: deal with MT7925 invalid ISO RX packets

[BluezTestBot]

MT7925 produces empty ISO packets for Handle 0 when RX is active:

ISO Data RX: Handle 0 SN 36734 flags 0x00 dlen 0 slen 58 #851 [hci0]
ISO Data RX: Handle 0 SN 36734 flags 0x00 dlen 0 slen 58 #852 [hci0]

The driver should filter these out before passing to hci_core, otherwise
it will printk "Bluetooth: hci0: ISO packet for unknown connection
handle 0" errors.

Filter out by adding hdev->classify_pkt_type

Signed-off-by: Pauli Virtanen pav@iki.fi

drivers/bluetooth/btmtk.c | 13 +++++++++++++
drivers/bluetooth/btmtk.h | 8 ++++++++
drivers/bluetooth/btusb.c | 1 +
3 files changed, 22 insertions(+)

[github-actions]

CheckPatch
Desc: Run checkpatch.pl script
Duration: 0.91 seconds
Result: PASS

[github-actions]

GitLint
Desc: Run gitlint
Duration: 0.25 seconds
Result: PASS

[github-actions]

SubjectPrefix
Desc: Check subject contains "Bluetooth" prefix
Duration: 0.08 seconds
Result: PASS

[github-actions]

BuildKernel
Desc: Build Kernel for Bluetooth
Duration: 24.35 seconds
Result: PASS

[github-actions]

CheckAllWarning
Desc: Run linux kernel with all warning enabled
Duration: 26.56 seconds
Result: PASS

[github-actions]

CheckSparse
Desc: Run sparse tool with linux kernel
Duration: 25.30 seconds
Result: PASS

[github-actions]

BuildKernel32
Desc: Build 32bit Kernel for Bluetooth
Duration: 23.95 seconds
Result: PASS

[github-actions]

TestRunnerSetup
Desc: Setup kernel and bluez for test-runner
Duration: 524.33 seconds
Result: PASS

[github-actions]

IncrementalBuild
Desc: Incremental build with the patches in the series
Duration: 22.40 seconds
Result: PASS