Bug 647544 – <sys-kernel/vanilla-sources-4.15.4 drivers-ssb-pci-legacy-Kconfig needs patch to enable broadcom wifi

• Status: RESOLVED UPSTREAM
• Product: Gentoo Linux

[Description Ulenrich 2018-02-13 18:14:21 UTC]

Created attachment 519320 [details, diff]
Kconfig should allow legacy broadcom wifi usig ssb on pci

linux-4.15 could not get my broadcom wifi activated
until reading this bug
https://bugzilla.kernel.org/show_bug.cgi?id=198555
I managed it by applying this patch:

--- a/drivers/ssb/Kconfig       2018-01-28 22:20:33.000000000 +0100
+++ b/drivers/ssb/Kconfig       2018-02-13 17:50:38.015765599 +0100
@@ -32,7 +32,7 @@

 config SSB_PCIHOST_POSSIBLE
        bool
-       depends on SSB && (PCI = y || PCI = SSB) && PCI_DRIVERS_LEGACY
+       depends on SSB && (PCI = y || PCI = SSB)
        default y

 config SSB_PCIHOST

[Comment 1 Ulenrich 2018-02-13 18:15:39 UTC]

Config variable PCI_DRIVERS_LEGACY cannot be provided obviously 
when trying to handle ssb via make menuconfig

[Comment 2 Ulenrich 2018-02-13 18:21:49 UTC]

Now running:
---
 # uname -r
4.15.3-2.8.376
 # lspci -v -v -n -n
...
03:00.0 Network controller [0280]: Broadcom Limited BCM4321 802.11a/b/g/n [14e4:4328] (rev 05)
	Subsystem: Apple Inc. AirPort Extreme [106b:0090]
	Control: I/O- Mem+ BusMaster+ SpecC
...
	Capabilities: [160 v1] Device Serial Number 96-26-08-ff-ff-ed-00-26
	Capabilities: [16c v1] Power Budgeting <?>
	Kernel driver in use: b43-pci-bridge
	Kernel modules: ssb
...
---

[Comment 3 Arisu Tachibana 2018-02-15 16:05:02 UTC]

This bug is also present on sys-kernel/gentoo-sources-4.15-3, I suppose.

please report it upstream and i will see to add the patch on gentoo-sources, we are not adding patch to vanilla-sources.

thanks

[Comment 4 Arisu Tachibana 2018-02-17 16:14:04 UTC]

could you try to test 4.15.4 and see if solve the problem ?

[Comment 5 Ulenrich 2018-02-17 17:52:20 UTC]

seems to be solved now for linux-4.15.4

by a hard to understand OR_NOT logic:
---
depends on SSB && (PCI = y || PCI = SSB) && (PCI_DRIVERS_LEGACY || !MIPS)
---

[Comment 6 Arisu Tachibana 2018-02-20 04:03:58 UTC]

yes i see that, thanks

[Comment 7 Ulenrich 2018-02-20 14:55:58 UTC]

Just for confirmation: I run that linux-4.15.4 without issues (LEGACY PCI SSB)