| Message ID | 1445576642-29624-18-git-send-email-matt@masarand.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
Hi Matthew,
[auto build test WARNING on v4.3-rc6 -- if it's inappropriate base, please suggest rules for selecting the more suitable base]
url: https://github.com/0day-ci/linux/commits/Matthew-Minter/PCI-Build-setup-irq-o-on-all-arches/20151023-131018
config: m68k-m5475evb_defconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=m68k
All warnings (new ones prefixed by >>):
arch/m68k/coldfire/pci.c: In function 'pcibios_root_bridge_prepare':
>> arch/m68k/coldfire/pci.c:331:18: warning: assignment from incompatible pointer type
bridge->map_irq = mcf_pci_map_irq;
^
vim +331 arch/m68k/coldfire/pci.c
315 rootbus = pci_scan_bus(0, &mcf_pci_ops, NULL);
316 if (!rootbus)
317 return -ENODEV;
318
319 rootbus->resource[0] = &mcf_pci_io;
320 rootbus->resource[1] = &mcf_pci_mem;
321
322 pci_bus_size_bridges(rootbus);
323 pci_bus_assign_resources(rootbus);
324 pci_bus_add_devices(rootbus);
325 return 0;
326 }
327
328 int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
329 {
330 bridge->swizzle_irq = pci_common_swizzle;
> 331 bridge->map_irq = mcf_pci_map_irq;
332 return 0;
333 }
334
335 subsys_initcall(mcf_pci_init);
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
diff --git a/arch/m68k/coldfire/pci.c b/arch/m68k/coldfire/pci.c index 821de92..86661cd 100644 --- a/arch/m68k/coldfire/pci.c +++ b/arch/m68k/coldfire/pci.c @@ -319,11 +319,17 @@ static int __init mcf_pci_init(void) rootbus->resource[0] = &mcf_pci_io; rootbus->resource[1] = &mcf_pci_mem; - pci_fixup_irqs(pci_common_swizzle, mcf_pci_map_irq); pci_bus_size_bridges(rootbus); pci_bus_assign_resources(rootbus); pci_bus_add_devices(rootbus); return 0; } +int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) +{ + bridge->swizzle_irq = pci_common_swizzle; + bridge->map_irq = mcf_pci_map_irq; + return 0; +} + subsys_initcall(mcf_pci_init);
Currently PCI IRQs are assigned during mcf_pci_init which is only run at boot time, this causes devices which are connected after boot time to not receive an IRQ, this patch set fixes this by registering an IRQ assignment function to be run later at device enable time. Signed-off-by: Matthew Minter <matt@masarand.com> --- arch/m68k/coldfire/pci.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)