Search Linux Wireless

Re: [PATCH] wifi: ath12k: fix peer metadata parsing

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 





On 6/25/2024 9:23 PM, Kalle Valo wrote:
Karthikeyan Periyasamy <quic_periyasa@xxxxxxxxxxx> writes:

Currently, the Rx data path only supports parsing peer metadata of version
zero. However, the QCN9274 platform configures the peer metadata version
as V1B. When V1B peer metadata is parsed using the version zero logic,
invalid data is populated, causing valid packets to be dropped. To address
this issue, refactor the peer metadata version and add the version based
parsing to populate the data from peer metadata correctly.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Fixes: 287033810990 ("wifi: ath12k: add support for peer meta data version")
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@xxxxxxxxxxx>

[...]

+static u16 ath12k_dp_rx_get_peer_id(enum ath12k_peer_metadata_version ver,
+				    __le32 peer_metadata)
+{
+	switch (ver) {
+	default:
+		WARN_ON(1);
+		fallthrough;

I'm a bit wary of using WARN_ON() in data path, so in the pending branch
I changed this to ath12k_warn():

	default:
		ath12k_warn(ab, "Unknown peer metadata version: %d", ver);
		fallthrough;

The benefit is also that now we print the unknown value. Would this
work?

Please check:

https://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git/commit/?h=pending&id=0228ca402186a123e5c90187f952121de50bf64f


Looks fine to me.

Thanks.

--
Karthikeyan Periyasamy
--
கார்த்திகேயன் பெரியசாமி




[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Wireless Regulations]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux