On Thu, 2016-06-02 at 02:02 -0600, Reinoud Koornstra wrote:

On Wed, Jun 1, 2016 at 10:27 PM, Coelho, Luciano
[off-list ref] wrote:

quoted

On Wed, 2016-06-01 at 16:08 -0600, Reinoud Koornstra wrote:

quoted

On Wed, Jun 1, 2016 at 7:19 AM, Coelho, Luciano
[off-list ref] wrote:

quoted

On Wed, 2016-06-01 at 08:54 -0400, Bob Copeland wrote:

quoted

+ Luca, Emmanuel

Thanks, Bob!

quoted

On Tue, May 31, 2016 at 10:06:57PM -0600, Reinoud Koornstra
wrote:

quoted

Today I compiled 4.6+ and pulled sources today
iwlwifi isn't super smooth.

I assume you mean wireless-testing, based on 4.7-rc1 (as this
email
is
in reply to my announcement of same).

Yes, we need to know exactly what kernel you're using so we know
what
we're debugging.

Yesterday this is what I did to obtain the latest source:

git clone
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel_current

This is the latest commit in that tree:

commit 367d3fd50566a313946fa9c5b2116a81bf3807e4
Merge: 5eca831 cf0d44d
Author: Linus Torvalds [off-list ref]
Date:   Tue May 31 09:43:24 2016 -0700

   Merge branch 'for-linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

   Pull s390 fixes from Martin Schwidefsky:
    "Three bugs fixes and an update for the default configuration"

   * 'for-linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
     s390: fix info leak in do_sigsegv
     s390/config: update default configuration
     s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop
     s390/bpf: reduce maximum program size to 64 KB

Ah, okay.  This has nothing to do with the wireless-testing tree.  This
is random commit in Linus' tree.  I suggest that you use a release tag
or such.  For instance you could do this in Linus' tree to get the
current release candidate for 4.7:

git checkout v4.7-rc1

Or you could use the wireless-testing tree that Bob is maintaining,
which is always based on an official release candidate (currently the
above mentioned v4.7-rc1 release) plus the latest and greatest (and
probably "brokenest" :P) wireless changes:

git clone git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-testing.git

Ok, i got this tree.
From the start it didn't work.

[    0.000000] Linux version 4.7.0-rc1-wt+
[SNIP]
[    2.156875] iwlwifi 0000:04:00.0: Direct firmware load for
iwlwifi-7260-17.ucode failed with error -2
[    2.157681] iwlwifi 0000:04:00.0: Direct firmware load for
iwlwifi-7260-16.ucode failed with error -2
[    2.158438] iwlwifi 0000:04:00.0: no suitable firmware found!

This is happening pretty early, did you compile the iwlwifi driver into
the kernel (instead of compiling them as modules)? There have been
problems when it's in-kernel, so we recommend that you compile them as
modules (unless strictly necessary).

I've attached the dmesg in it's entirety.
Booting back to 4.6:

[   17.987698] iwlwifi 0000:04:00.0: loaded firmware version
16.242414.0 op_mode iwlmvm
[   18.269667] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band
Wireless AC 7260, REV=0x144

This shows that you have iwlwifi-7260-16.ucode in your file system.
 But here we are reading it much later.  So it's possible that the
kernel cannot access the firmware at a very early stage (because the
filesystem that contains it is not mounted yet) when you use in-kernel.

So, first of all, please make sure they're built as modules.  We can
continue from there then.

--
Cheers,
Luca.