> I have been trying to get basic WoWLAN to work with the following
> configuration:
> - Intel Corporation Wireless 7260 (rev 73) with in-tree iwlwifi
> driver
So I just tried on 4.9 with a 6205 NIC and it works there. The
difference must be somewhere in mvm/d3.c then, I guess. I got a lot of
warnings at resume time though, not sure why.
> However, when trying to suspend to RAM ( echo mem > /sys/power/state
> ), I get:
> [46656.403767] dpm_run_callback(): wiphy_suspend+0x0/0x97 [cfg80211]
> returns -16
> [46656.403769] PM: Device phy0 failed to suspend async: error -16
>
However, I don't see EBUSY anywhere there in the driver.
Can you recompile the kernel and run a quick experiment?
Open drivers/net/wireless/intel/iwlwifi/mvm/mvm.h and put something
like this after the includes:
#undef EBUSY
#define EBUSY ({ WARN_ON(1); 16; })
that should trigger a warning at the place where the EBUSY came from,
assuming it did in fact come from the driver. You could repeat it for
net/mac80211/ieee80211_i.h if that doesn't trigger.
> https://bugzilla.kernel.org/show_bug.cgi?id=109591#c25
That device is like mine, afaict, so this seems to be a different bug.
johannes
