[+cc linux-pci]
On Mon, Nov 29, 2021 at 01:18:12PM +0100, Sergio Paracuellos wrote:
> On Mon, Nov 29, 2021 at 5:17 AM Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> > On 11/28/21 7:07 PM, Randy Dunlap wrote:
> > > On 11/28/21 17:59, Guenter Roeck wrote:
> > >> ...
> > >> Build results:
> > >> total: 153 pass: 152 fail: 1
> > >> Failed builds:
> > >> mips:allmodconfig
> > >> Qemu test results:
> > >> total: 482 pass: 482 fail: 0
> > >>
> > >> Building mips:allmodconfig ... failed
> > >> --------------
> > >> Error log:
> > >> ERROR: modpost: missing MODULE_LICENSE() in drivers/pci/controller/pcie-mt7621.o
> > >> ERROR: modpost: "mips_cm_unlock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
> > >> ERROR: modpost: "mips_cpc_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!
> > >> ERROR: modpost: "mips_cm_lock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
> > >> ERROR: modpost: "mips_cm_is64" [drivers/pci/controller/pcie-mt7621.ko] undefined!
> > >> ERROR: modpost: "mips_gcr_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!
> > >>
> > >> There is still no fix for the mips:allmodconfig build problem as far
> > >> as I can see. It is a bit odd, because the fix would be as simple as
> > >>
> > >> config PCIE_MT7621
> > >> - tristate "MediaTek MT7621 PCIe Controller"
> > >> - depends on (RALINK && SOC_MT7621) || (MIPS && COMPILE_TEST)
> > >> + bool "MediaTek MT7621 PCIe Controller"
> > >> + depends on SOC_MT7621 || (MIPS && COMPILE_TEST)
> > >> select PHY_MT7621_PCI
> > >> default SOC_MT7621
> > >> help
> > >>
> > >> Context: tristate doesn't make sense here because both RALINK and
> > >> SOC_MT7621 are bool. Also, RALINK is redundant because SOC_MT7621
> > >> already depends on it. The compile failure is due to missing exported
> > >> symbols, and it is only seen if PCIE_MT7621=m - which is only possible
> > >> if COMPILE_TEST=y. In other words, the dependencies above are set such
> > >> that test builds, and only test builds, fail.
> > >>
> > >> The problem was introduced with commit 2bdd5238e756 ("PCI: mt7621:
> > >> Add MediaTek MT7621 PCIe host controller driver"). Copying some of
> > >> those responsible to see if we can expect a solution sometime soon.
Can we do a minimal patch along the lines of the above for v5.16?
We can do the more extensive work as in
https://lore.kernel.org/r/20211115070809.15529-1-sergio.paracuellos@xxxxxxxxx
but that would be material for v5.17.
Bjorn
