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#ifndef _FS_CEPH_AUTH_NONE_H
#define _FS_CEPH_AUTH_NONE_H

#include <linux/slab.h>
#include <linux/ceph/auth.h>

/*
 * null security mode.
 *
 * we use a single static authorizer that simply encodes our entity name
 * and global id.
 */

struct ceph_none_authorizer {
	struct ceph_authorizer base;
	char buf[128];
	int buf_len;
	char reply_buf[0];
};

struct ceph_auth_none_info {
	bool starting;
};

int ceph_auth_none_init(struct ceph_auth_client *ac);

#endif

='/cgit.cgi/linux/net-next.git/commit/fs/xfs/libxfs/xfs_dir2.h?id=030305d69fc6963c16003f50d7e8d74b02d0a143'>030305d69fc6963c16003f50d7e8d74b02d0a143 (patch) tree363a4e34d199178769b7e7eeb26ea2620a55847b /fs/xfs/libxfs/xfs_dir2.h parent4d191b1b63c209e37bf27938ef365244d3c41084 (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 'fs/xfs/libxfs/xfs_dir2.h')