#ifndef _SCSI_SCSI_DBG_H #define _SCSI_SCSI_DBG_H struct scsi_cmnd; struct scsi_device; struct scsi_sense_hdr; #define SCSI_LOG_BUFSIZE 128 extern void scsi_print_command(struct scsi_cmnd *); extern size_t __scsi_format_command(char *, size_t, const unsigned char *, size_t); extern void scsi_show_extd_sense(const struct scsi_device *, const char *, unsigned char, unsigned char); extern void scsi_print_sense_hdr(const struct scsi_device *, const char *, const struct scsi_sense_hdr *); extern void scsi_print_sense(const struct scsi_cmnd *); extern void __scsi_print_sense(const struct scsi_device *, const char *name, const unsigned char *sense_buffer, int sense_len); extern void scsi_print_result(const struct scsi_cmnd *, const char *, int); #ifdef CONFIG_SCSI_CONSTANTS extern bool scsi_opcode_sa_name(int, int, const char **, const char **); extern const char *scsi_sense_key_string(unsigned char); extern const char *scsi_extd_sense_format(unsigned char, unsigned char, const char **); extern const char *scsi_mlreturn_string(int); extern const char *scsi_hostbyte_string(int); extern const char *scsi_driverbyte_string(int); #else static inline bool scsi_opcode_sa_name(int cmd, int sa, const char **cdb_name, const char **sa_name) { *cdb_name = NULL; switch (cmd) { case VARIABLE_LENGTH_CMD: case MAINTENANCE_IN: case MAINTENANCE_OUT: case PERSISTENT_RESERVE_IN: case PERSISTENT_RESERVE_OUT: case SERVICE_ACTION_IN_12: case SERVICE_ACTION_OUT_12: case SERVICE_ACTION_BIDIRECTIONAL: case SERVICE_ACTION_IN_16: case SERVICE_ACTION_OUT_16: case EXTENDED_COPY: case RECEIVE_COPY_RESULTS: *sa_name = NULL; return true; default: return false; } } static inline const char * scsi_sense_key_string(unsigned char key) { return NULL; } static inline const char * scsi_extd_sense_format(unsigned char asc, unsigned char ascq, const char **fmt) { *fmt = NULL; return NULL; } static inline const char * scsi_mlreturn_string(int result) { return NULL; } static inline const char * scsi_hostbyte_string(int result) { return NULL; } static inline const char * scsi_driverbyte_string(int result) { return NULL; } #endif #endif /* _SCSI_SCSI_DBG_H */ nclude/dt-bindings/i2c'>
path: root/include/dt-bindings/i2c
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authorMarc Zyngier <marc.zyngier@arm.com>2017-01-17 16:00:48 +0000
committerThomas Gleixner <tglx@linutronix.de>2017-01-30 15:18:56 +0100
commit08d85f3ea99f1eeafc4e8507936190e86a16ee8c (patch)
tree410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee /net/ipx/Makefile
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
irqdomain: Avoid activating interrupts more than once
Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early"), we can end-up activating a PCI/MSI twice (once at allocation time, and once at startup time). This is normally of no consequences, except that there is some HW out there that may misbehave if activate is used more than once (the GICv3 ITS, for example, uses the activate callback to issue the MAPVI command, and the architecture spec says that "If there is an existing mapping for the EventID-DeviceID combination, behavior is UNPREDICTABLE"). While this could be worked around in each individual driver, it may make more sense to tackle the issue at the core level. In order to avoid getting in that situation, let's have a per-interrupt flag to remember if we have already activated that interrupt or not. Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early") Reported-and-tested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'net/ipx/Makefile')