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#ifndef _SCSI_SCSI_DEVINFO_H
#define _SCSI_SCSI_DEVINFO_H
/*
 * Flags for SCSI devices that need special treatment
 */
#define BLIST_NOLUN     	0x001	/* Only scan LUN 0 */
#define BLIST_FORCELUN  	0x002	/* Known to have LUNs, force scanning,
					   deprecated: Use max_luns=N */
#define BLIST_BORKEN    	0x004	/* Flag for broken handshaking */
#define BLIST_KEY       	0x008	/* unlock by special command */
#define BLIST_SINGLELUN 	0x010	/* Do not use LUNs in parallel */
#define BLIST_NOTQ		0x020	/* Buggy Tagged Command Queuing */
#define BLIST_SPARSELUN 	0x040	/* Non consecutive LUN numbering */
#define BLIST_MAX5LUN		0x080	/* Avoid LUNS >= 5 */
#define BLIST_ISROM     	0x100	/* Treat as (removable) CD-ROM */
#define BLIST_LARGELUN		0x200	/* LUNs past 7 on a SCSI-2 device */
#define BLIST_INQUIRY_36	0x400	/* override additional length field */
#define BLIST_INQUIRY_58	0x800	/* ... for broken inquiry responses */
#define BLIST_NOSTARTONADD	0x1000	/* do not do automatic start on add */
#define BLIST_MS_SKIP_PAGE_08	0x2000	/* do not send ms page 0x08 */
#define BLIST_MS_SKIP_PAGE_3F	0x4000	/* do not send ms page 0x3f */
#define BLIST_USE_10_BYTE_MS	0x8000	/* use 10 byte ms before 6 byte ms */
#define BLIST_MS_192_BYTES_FOR_3F	0x10000	/*  192 byte ms page 0x3f request */
#define BLIST_REPORTLUN2	0x20000	/* try REPORT_LUNS even for SCSI-2 devs
 					   (if HBA supports more than 8 LUNs) */
#define BLIST_NOREPORTLUN	0x40000	/* don't try REPORT_LUNS scan (SCSI-3 devs) */
#define BLIST_NOT_LOCKABLE	0x80000	/* don't use PREVENT-ALLOW commands */
#define BLIST_NO_ULD_ATTACH	0x100000 /* device is actually for RAID config */
#define BLIST_SELECT_NO_ATN	0x200000 /* select without ATN */
#define BLIST_RETRY_HWERROR	0x400000 /* retry HARDWARE_ERROR */
#define BLIST_MAX_512		0x800000 /* maximum 512 sector cdb length */
#define BLIST_ATTACH_PQ3	0x1000000 /* Scan: Attach to PQ3 devices */
#define BLIST_NO_DIF		0x2000000 /* Disable T10 PI (DIF) */
#define BLIST_SKIP_VPD_PAGES	0x4000000 /* Ignore SBC-3 VPD pages */
#define BLIST_SCSI3LUN		0x8000000 /* Scan more than 256 LUNs
					     for sequential scan */
#define BLIST_TRY_VPD_PAGES	0x10000000 /* Attempt to read VPD pages */
#define BLIST_NO_RSOC		0x20000000 /* don't try to issue RSOC */
#define BLIST_MAX_1024		0x40000000 /* maximum 1024 sector cdb length */
#define BLIST_SYNC_ALUA		0x80000000 /* Synchronous ALUA commands */

#endif
y papers over the issue by adding a NULL pointer check and a WARN_ON_ONCE() to avoid the oops that would then generally make the machine unresponsive. Other callers of i915_gem_object_to_ggtt() seem to also check for the returned pointer being NULL and warn about it, so this clearly has happened before in other places. [ Reported it originally to the i915 developers on Jan 8, applying the ugly workaround on my own now after triggering the problem for the second time with no feedback. This is likely to be the same bug reported as https://bugs.freedesktop.org/show_bug.cgi?id=98829 https://bugs.freedesktop.org/show_bug.cgi?id=99134 which has a patch for the underlying problem, but it hasn't gotten to me, so I'm applying the workaround. ] Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/ceph/ceph_hash.c')