#ifndef _SCSI_SCSI_EH_H #define _SCSI_SCSI_EH_H #include #include #include struct scsi_device; struct Scsi_Host; extern void scsi_eh_finish_cmd(struct scsi_cmnd *scmd, struct list_head *done_q); extern void scsi_eh_flush_done_q(struct list_head *done_q); extern void scsi_report_bus_reset(struct Scsi_Host *, int); extern void scsi_report_device_reset(struct Scsi_Host *, int, int); extern int scsi_block_when_processing_errors(struct scsi_device *); extern bool scsi_command_normalize_sense(const struct scsi_cmnd *cmd, struct scsi_sense_hdr *sshdr); extern int scsi_check_sense(struct scsi_cmnd *); static inline bool scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr) { return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1)); } extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, u64 * info_out); extern int scsi_ioctl_reset(struct scsi_device *, int __user *); struct scsi_eh_save { /* saved state */ int result; enum dma_data_direction data_direction; unsigned underflow; unsigned char cmd_len; unsigned char prot_op; unsigned char *cmnd; struct scsi_data_buffer sdb; struct request *next_rq; /* new command support */ unsigned char eh_cmnd[BLK_MAX_CDB]; struct scatterlist sense_sgl; }; extern void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct scsi_eh_save *ses, unsigned char *cmnd, int cmnd_size, unsigned sense_bytes); extern void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct scsi_eh_save *ses); #endif /* _SCSI_SCSI_EH_H */ cgi/linux/net-next.git/'>summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2017-01-30 13:15:41 +0100
committerBjorn Helgaas <bhelgaas@google.com>2017-02-02 10:35:46 -0600
commitdfef358bd1beb4e7b5c94eca944be9cd23dfc752 (patch)
treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /sound/soc/intel/atom/sst/sst_acpi.c
parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'sound/soc/intel/atom/sst/sst_acpi.c')