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RDMA/ocrdma: Fix build with IPV6=n 

When IPV6 is not enabled:

    ERROR: "register_inet6addr_notifier" [drivers/infiniband/hw/ocrdma/ocrdma.ko] undefined!
    ERROR: "unregister_inet6addr_notifier" [drivers/infiniband/hw/ocrdma/ocrdma.ko] undefined!

Fix this by wrapping the inet6 calls in #ifdef IPV6.  Also make the
ocrdma module depend on (IPV6 || IPV6=n) to forbid the case of modular
ipv6 but built-in ocrdma (which can't work, because ocrdma calls ipv6
functions).

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Roland Dreier 2012-05-02 15:42:33 -07:00
parent d19081e044
commit 349556692d
2 changed files with 22 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/hw/ocrdma/Kconfig
View File

@ -1,6 +1,6 @@
config INFINIBAND_OCRDMA
tristate "Emulex One Connect HCA support"
depends on ETHERNET && NETDEVICES && PCI
depends on ETHERNET && NETDEVICES && PCI && (IPV6 || IPV6=n)
select NET_VENDOR_EMULEX
select BE2NET
---help---

29
drivers/infiniband/hw/ocrdma/ocrdma_main.c
View File

@ -51,12 +51,6 @@ static DEFINE_SPINLOCK(ocrdma_devlist_lock);
static DEFINE_IDR(ocrdma_dev_id);
static union ib_gid ocrdma_zero_sgid;
static int ocrdma_inet6addr_event(struct notifier_block *,
unsigned long, void *);
static struct notifier_block ocrdma_inet6addr_notifier = {
.notifier_call = ocrdma_inet6addr_event
};
static int ocrdma_get_instance(void)
{
@ -204,6 +198,8 @@ static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev)
return 0;
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
static int ocrdma_inet6addr_event(struct notifier_block *notifier,
unsigned long event, void *ptr)
{
@ -259,6 +255,12 @@ static int ocrdma_inet6addr_event(struct notifier_block *notifier,
return NOTIFY_OK;
}
static struct notifier_block ocrdma_inet6addr_notifier = {
.notifier_call = ocrdma_inet6addr_event
};
#endif /* IPV6 */
static enum rdma_link_layer ocrdma_link_layer(struct ib_device *device,
u8 port_num)
{
@ -541,23 +543,34 @@ static struct ocrdma_driver ocrdma_drv = {
.state_change_handler = ocrdma_event_handler,
};
static void ocrdma_unregister_inet6addr_notifier(void)
{
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
unregister_inet6addr_notifier(&ocrdma_inet6addr_notifier);
#endif
}
static int __init ocrdma_init_module(void)
{
int status;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
status = register_inet6addr_notifier(&ocrdma_inet6addr_notifier);
if (status)
return status;
#endif
status = be_roce_register_driver(&ocrdma_drv);
if (status)
unregister_inet6addr_notifier(&ocrdma_inet6addr_notifier);
ocrdma_unregister_inet6addr_notifier();
return status;
}
static void __exit ocrdma_exit_module(void)
{
be_roce_unregister_driver(&ocrdma_drv);
unregister_inet6addr_notifier(&ocrdma_inet6addr_notifier);
ocrdma_unregister_inet6addr_notifier();
}
module_init(ocrdma_init_module);