On Wed, 17 Jun 2009 10:43:36 -0700
Randy Dunlap <randy.dunlap@xxxxxxxxxx> wrote:
> Jesse Barnes wrote:
> > On Wed, 17 Jun 2009 10:36:04 -0600
> > Matthew Wilcox <matthew@xxxxxx> wrote:
> >
> >> On Wed, Jun 17, 2009 at 09:26:51AM -0700, Randy Dunlap wrote:
> >>> Stephen Rothwell wrote:
> >>>> Hi all,
> >>>>
> >>>> Changes since 20090616:
> >>>
> >>> When CONFIG_SYSFS=n:
> >>>
> >>> drivers/pci/slot.c:327: error: 'module_kset' undeclared (first use
> >>> in this function)
> >> Is there any point to pci_slot existing without CONFIG_SYSFS?
> >> I don't see how you can interact with it in any meaningful way.
> >> Perhaps CONFIG_PCI_SLOT should depend on CONFIG_SYSFS?
> >
> > I've got a code fix queued up, but maybe a Kconfig dependency is the
> > way to go...
>
> What is the code fix like?
> The Kconfig fix makes sense to me.
>
>
Here's the patch I have (sorry cut & paste):
Fix this build error when CONFIG_SYSFS is not set:
drivers/pci/slot.c: In function 'pci_hp_create_module_link':
drivers/pci/slot.c:327: error: 'module_kset' undeclared
Signed-off-by: Alexander Beregalov <a.beregalov@xxxxxxxxx>
---
drivers/pci/slot.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index eddb074..dd6c097 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -308,6 +308,7 @@ void pci_destroy_slot(struct pci_slot *slot)
EXPORT_SYMBOL_GPL(pci_destroy_slot);
#if defined(CONFIG_HOTPLUG_PCI) || defined(CONFIG_HOTPLUG_PCI_MODULE)
+#ifdef CONFIG_SYSFS
#include <linux/pci_hotplug.h>
/**
* pci_hp_create_link - create symbolic link to the hotplug driver
module. @@ -344,6 +345,14 @@ void pci_hp_remove_module_link(struct
pci_slot *pci_slot) sysfs_remove_link(&pci_slot->kobj, "module");
}
EXPORT_SYMBOL_GPL(pci_hp_remove_module_link);
+#else /* CONFIG_SYSFS */
+
+inline void pci_hp_create_module_link(struct pci_slot *pci_slot) {}
+EXPORT_SYMBOL_GPL(pci_hp_create_module_link);
+
+inline void pci_hp_remove_module_link(struct pci_slot *pci_slot) {}
+EXPORT_SYMBOL_GPL(pci_hp_remove_module_link);
+#endif /* CONFIG_SYSFS */
#endif
static int pci_slot_init(void)
--
Jesse Barnes, Intel Open Source Technology Center
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