[LEDE-DEV] Using PROVIDES with kmod packages

Jonas Gorski jonas.gorski at gmail.com
Fri Feb 17 07:06:19 PST 2017

On 17 February 2017 at 15:38, Rafał Miłecki <zajec5 at gmail.com> wrote:
> On 17 February 2017 at 15:14, Jonas Gorski <jonas.gorski at gmail.com> wrote:
>> On 17 February 2017 at 14:53, Rafał Miłecki <zajec5 at gmail.com> wrote:
>>> I was doing some fun experiments with ssb/bcma/b43 as a research based on:
>>> [PATCH RFC] kernel: allow selecting kmod-ssb on TARGET_brcm47xx_mips74k
>>> I was trying to build 2 variants of ssb package and 2 variants of b43
>>> package.
>>> It didn't work, most likely because of the way PROVIDES is handled. I
>>> stripped
>>> down my changes to a simple ssb module package dif (see below). With this
>>> change
>>> applied I'm getting:
>>> Collected errors:
>>>  * satisfy_dependencies_for: Cannot satisfy the following dependencies for
>>> kmod-b43:
>>>  *      kmod-ssb *
>>>  * opkg_install_cmd: Cannot install package kmod-b43.
>>> Is this possible to make PROVIDES work with kernel module packages?
>> Our kernel can handle ko's built into the kernel and just create empty
>> packages, so wouldn't changing the DEPENDS to
>> @PCI_SUPPORT||TARGET_brcm47xx||TARGET_brcm63xx enough?
> I don't want to build ssb into the kernel. I want to add kmod-ssb
> package with per device rootfs feature.

What I mean is you can make it visible also for TARGET_brcm47xx, and
if the subtarget chooses to built it into the kernel then kmod-ssb
will be empty, and if it doesn't, then kmod-ssb will contain ssb.ko,
just like on other targets.

So no need for variants here, no?

>> If that isn't enough you could also create a
>> KernelPackage/ssb/brcm47xx (see e.g. crypto-misc, which as a x86
>> variant, or crypto-sha512 which even has a x86_64 one). With some
>> oppropriate overrides.
> This also doesn't help me. I need two variants of b43 package, not one
> modified. It's because most mips74k devices can work with b43 with
> bcma only. There are only about 2 devices than need modified b43
> package with ssb support enabled.
> In other words I need exactly something like PROVIDES ;)

So you want to build b43 twice for the same subtarget, once with bcma
only, and once with ssb support in addtion?


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