Re: [PATCH v2 2/3] MIPS: cm/cpc: export some missing symbols to be able to use them from driver code
From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Date: 2021-10-28 09:36:18
Also in:
linux-arm-kernel, linux-mediatek, linux-mips, linux-pci
Hi Thomas, On Thu, Oct 28, 2021 at 11:24 AM Thomas Bogendoerfer [off-list ref] wrote:
On Thu, Oct 28, 2021 at 06:11:18AM +0200, Sergio Paracuellos wrote:quoted
On Thu, Oct 28, 2021 at 6:05 AM Yanteng Si [off-list ref] wrote:quoted
Since commit 2bdd5238e756 ("PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver") the MT7621 PCIe host controller driver is built as a module but modpost complains once these drivers become modules. 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! Let's just export them. Signed-off-by: Yanteng Si <redacted> --- arch/mips/kernel/mips-cm.c | 5 +++++ arch/mips/kernel/mips-cpc.c | 1 + 2 files changed, 6 insertions(+)Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>could we instead make the pcie-mt761 driver non modular ? Exporting all MIPS specific stuff for just making an essential driver modular doesn't IMHO make much sense.
The driver is modular because I have been advised other times that new
drivers should be able to be compiled as modules and we should avoid
using 'bool' in Kconfig for new drivers. That's the only reason. I am
also always including as 'y' the driver since for me not having pci in
my boards has no sense... I am ok in changing Kconfig to be 'bool'
instead of 'tristate', but I don't know what should be the correct
thing to do in this case. Thoughts?
Best regards,
Sergio Paracuellos
Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]