Re: [PATCH RESEND] wifi: ath12k: fix MAC address copy on big endian

On Thu, Jul 02, 2026 at 10:41:25AM +0200, Alexander Wilhelm wrote:
> On Thu, Jul 02, 2026 at 04:12:00PM +0800, Baochen Qiang wrote:
> > 
> > 
> > On 6/29/2026 3:55 PM, Alexander Wilhelm wrote:
> > > The ath12k_dp_get_mac_addr function performs a simple memcpy from a
> > > CPU-native data types into an u8 array. On a big-endian architecture, this
> > > later results in a null‑pointer dereference. Convert the data to
> > 
> > Alex, did you find a time to investigate the root cause of the null pointer?

Hi Baochen,

I am now running kernel v6.18.26, and it looks like the null-pointer issue is
gone. I only see the following log messages:

    ath12k_pci 0001:01:00.0: failed to vdev 0 create peer for AP: -110
    ath12k_pci 0001:01:00.0: failed to create vdev 04:f0:21:c9:e0:0e ret -110
    ath12k_pci 0001:01:00.0: failed to assign chanctx for vif 04:f0:21:c9:e0:0e link id 0 link vif is already started
    ath12k_pci 0001:01:00.0: invalid vdev id in vdev delete resp ev 0

Should I rebase the patch onto the latest `ath/master` branch and update the
commit description accordingly?


Best regards
Alexander Wilhelm