#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 */ 680ac37fc9d27'>commitdiff
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authorzhong jiang <zhongjiang@huawei.com>2017-01-24 15:18:52 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 16:26:14 -0800
commit3277953de2f31dd03c6375e9a9f680ac37fc9d27 (patch)
tree6ba22924faa1b82ef2f0277db10a3f5abdc44157 /tools/build/feature/test-cplus-demangle.c
parent3705ccfdd1e8b539225ce20e3925a945cc788d67 (diff)
mm: do not export ioremap_page_range symbol for external module
Recently, I've found cases in which ioremap_page_range was used incorrectly, in external modules, leading to crashes. This can be partly attributed to the fact that ioremap_page_range is lower-level, with fewer protections, as compared to the other functions that an external module would typically call. Those include: ioremap_cache ioremap_nocache ioremap_prot ioremap_uc ioremap_wc ioremap_wt ...each of which wraps __ioremap_caller, which in turn provides a safer way to achieve the mapping. Therefore, stop EXPORT-ing ioremap_page_range. Link: http://lkml.kernel.org/r/1485173220-29010-1-git-send-email-zhongjiang@huawei.com Signed-off-by: zhong jiang <zhongjiang@huawei.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Suggested-by: John Hubbard <jhubbard@nvidia.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/build/feature/test-cplus-demangle.c')