On 2017-03-10 16:00, Alexey Brodkin wrote:
> Hi Felix,
>
> On Tue, 2017-03-07 at 19:30 +0100, Felix Fietkau wrote:
>> On 2017-03-06 19:30, Alexey Brodkin wrote:
>> >
>> > With update of ARC tools to arc-2016.09 based on GCC v6.x
>> > we have to bump Linux kernel version so both toolchain and
>> > the kernel use the same ARC ABIv4.
>> >
>> > Signed-off-by: Alexey Brodkin <alexey.brod...@synopsys.com>
>> > ---
>> > target/linux/arc770/Makefile | 2 +-
>> > target/linux/arc770/{config-4.4 => config-4.9} | 44
>> > ++++++++++++++++------
>> > ...stmmac-Disable-frame-filtering-completely.patch | 0
>> > 3 files changed, 33 insertions(+), 13 deletions(-)
>> > rename target/linux/arc770/{config-4.4 => config-4.9} (82%)
>> > rename target/linux/arc770/{patches-4.4 =>
>> > patches-4.9}/700-stmmac-Disable-frame-filtering-completely.patch (100%)
>> >
>> This does not build with CONFIG_ALL_KMODS=y:
>>
>> MODPOST 735 modules
>> ERROR: "of_usb_get_phy_mode" [drivers/usb/dwc3/dwc3.ko] undefined!
>> scripts/Makefile.modpost:91: recipe for target '__modpost' failed
>> make[5]: *** [__modpost] Error 1
>> Makefile:1196: recipe for target 'modules' failed
>> make[4]: *** [modules] Error 2
>> make[4]: Leaving directory
>> '/var/nbd/lede/build_dir/target-arc_arc700_uClibc/linux-arc770_generic/linux-4.9.13'
>> Makefile:25: recipe for target
>> '/var/nbd/lede/build_dir/target-arc_arc700_uClibc/linux-arc770_generic/linux-4.9.13/.image'
>> failed
>> make[3]: ***
>> [/var/nbd/lede/build_dir/target-arc_arc700_uClibc/linux-arc770_generic/linux-4.9.13/.image]
>> Error 2
>> make[3]: Leaving directory '/var/nbd/lede/target/linux/arc770'
>> Makefile:13: recipe for target 'install' failed
>>
>> The cause is that of_usb_get_phy_mode is meant to be built into the
>> kernel, however since USB is selected as module, this won't work.
>>
>> Please send any follow-up fixes incrementally, and I will fold them
>> into the commit in my staging tree.
>
> Sorry for being silent for quite some time on that topic.
> It turned to be not that easy reproduce this... and to be honest
> I'm not there yet :)
>
> Now a bit more details.
>
> 1. For some reason once I enable CONFIG_ALL_KMODS somehow implicitly
> libnl gets enabled and its current version simply couldn't be built
> with uClibc, see
> http://lists.infradead.org/pipermail/libnl/2017-March/002301.html
>
> 2. Now I'm seeing this:
> --------------------------------->8-----------------------------
> make[4]: Entering directory
> `.../build_dir/target-arc_arc700_uClibc/linux-arc770_generic/linux-4.9.13'
> CC [M]
> .../build_dir/target-arc_arc700_uClibc/linux-arc770_generic/siit-1.2/siit.o
> .../build_dir/target-arc_arc700_uClibc/linux-arc770_generic/siit-1.2/siit.c:
> In function 'siit_xmit':
> .../build_dir/target-arc_arc700_uClibc/linux-arc770_generic/siit-1.2/siit.c:1169:5:
> error: 'struct net_device' has no member named 'trans_start'; did
> you mean 'mem_start'?
> dev->trans_start = jiffies;
> ^~
> --------------------------------->8-----------------------------
>
> So I'm wondering:
> 1. How did you manage to get over these things (I may expect once I found
> a fix for this "siit" more issues appear :)?
I did not run into these issues, because I was building without the
packages feed.
> 2. How come we haven't see issues with ALL_KMOD with 4.4-based kernels?
On linux 4.4, dwc3 didn't call that function.
- Felix
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