On 07/13/2012 01:29 PM, Myron Stowe wrote: > My "PCI: Integrate 'pci_fixup_final' quirks into hot-plug paths" patch > introduced an undefined reference to 'pci_fixup_final_inited' when > CONFIG_PCI_QUIRKS is not enabled (on x86_64): > drivers/built-in.o: In function `pci_bus_add_device': > (.text+0x4f62): undefined reference to `pci_fixup_final_inited' > > This patch removes the external reference ending up with a result closer > to what we ultimately want when the boot path issues described in the > original patch are resolved. > > References: > https://lkml.org/lkml/2012/7/9/542 Original, offending, patch > https://lkml.org/lkml/2012/7/12/338 Randy's catch > > Reported-by: rdunlap@xxxxxxxxxxxx > Signed-off-by: Myron Stowe <myron.stowe@xxxxxxxxxx> Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx> Thanks. > --- > > drivers/pci/bus.c | 4 +--- > drivers/pci/quirks.c | 20 ++++---------------- > 2 files changed, 5 insertions(+), 19 deletions(-) > > diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c > index b511bd4..4b0970b 100644 > --- a/drivers/pci/bus.c > +++ b/drivers/pci/bus.c > @@ -164,10 +164,8 @@ pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, > int pci_bus_add_device(struct pci_dev *dev) > { > int retval; > - extern bool pci_fixup_final_inited; > > - if (pci_fixup_final_inited) > - pci_fixup_device(pci_fixup_final, dev); > + pci_fixup_device(pci_fixup_final, dev); > retval = device_add(&dev->dev); > if (retval) > return retval; > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c > index 52f44b5..003f356 100644 > --- a/drivers/pci/quirks.c > +++ b/drivers/pci/quirks.c > @@ -2956,6 +2956,7 @@ extern struct pci_fixup __end_pci_fixups_resume_early[]; > extern struct pci_fixup __start_pci_fixups_suspend[]; > extern struct pci_fixup __end_pci_fixups_suspend[]; > > +static bool pci_apply_fixup_final_quirks; > > void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) > { > @@ -2973,6 +2974,8 @@ void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) > break; > > case pci_fixup_final: > + if (!pci_apply_fixup_final_quirks) > + return; > start = __start_pci_fixups_final; > end = __end_pci_fixups_final; > break; > @@ -3006,21 +3009,6 @@ void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) > EXPORT_SYMBOL(pci_fixup_device); > > > -/* > - * The global variable 'pci_fixup_final_inited' is being used as a interim > - * solution for calling the final quirks only during hot-plug events (not > - * during boot processing). > - * > - * When the boot path's PCI device setup sequencing is addressed, we can > - * remove the instance, and usages of, 'pci_fixup_final_inited' along with > - * removing 'fs_initcall_sync(pci_apply_final_quirks);' and end up with a > - * single, uniform, solution that satisfies both the boot path and the > - * various hot-plug event paths. > - * > - * ToDo: Remove 'pci_fixup_final_inited' > - */ > -bool pci_fixup_final_inited; > - > static int __init pci_apply_final_quirks(void) > { > struct pci_dev *dev = NULL; > @@ -3031,6 +3019,7 @@ static int __init pci_apply_final_quirks(void) > printk(KERN_DEBUG "PCI: CLS %u bytes\n", > pci_cache_line_size << 2); > > + pci_apply_fixup_final_quirks = true; > for_each_pci_dev(dev) { > pci_fixup_device(pci_fixup_final, dev); > /* > @@ -3051,7 +3040,6 @@ static int __init pci_apply_final_quirks(void) > pci_cache_line_size = pci_dfl_cache_line_size; > } > } > - pci_fixup_final_inited = 1; > > if (!pci_cache_line_size) { > printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n", > -- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
