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path: root/net/6lowpan/6lowpan_i.h
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#ifndef __6LOWPAN_I_H
#define __6LOWPAN_I_H

#include <linux/netdevice.h>

#include <net/6lowpan.h>

/* caller need to be sure it's dev->type is ARPHRD_6LOWPAN */
static inline bool lowpan_is_ll(const struct net_device *dev,
				enum lowpan_lltypes lltype)
{
	return lowpan_dev(dev)->lltype == lltype;
}

extern const struct ndisc_ops lowpan_ndisc_ops;

int addrconf_ifid_802154_6lowpan(u8 *eui, struct net_device *dev);

#ifdef CONFIG_6LOWPAN_DEBUGFS
int lowpan_dev_debugfs_init(struct net_device *dev);
void lowpan_dev_debugfs_exit(struct net_device *dev);

int __init lowpan_debugfs_init(void);
void lowpan_debugfs_exit(void);
#else
static inline int lowpan_dev_debugfs_init(struct net_device *dev)
{
	return 0;
}

static inline void lowpan_dev_debugfs_exit(struct net_device *dev) { }

static inline int __init lowpan_debugfs_init(void)
{
	return 0;
}

static inline void lowpan_debugfs_exit(void) { }
#endif /* CONFIG_6LOWPAN_DEBUGFS */

#endif /* __6LOWPAN_I_H */
diff/include/uapi/drm/radeon_drm.h?id=030305d69fc6963c16003f50d7e8d74b02d0a143&id2=4d191b1b63c209e37bf27938ef365244d3c41084'>diff)
PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
In a struct pcie_link_state, link->root points to the pcie_link_state of the root of the PCIe hierarchy. For the topmost link, this points to itself (link->root = link). For others, we copy the pointer from the parent (link->root = link->parent->root). Previously we recognized that Root Ports originated PCIe hierarchies, but we treated PCI/PCI-X to PCIe Bridges as being in the middle of the hierarchy, and when we tried to copy the pointer from link->parent->root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
Diffstat (limited to 'include/uapi/drm/radeon_drm.h')