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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-01-07 14:40:05 +0000 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-07 14:40:05 +0000 |
commit | 123656d4cc8c946f578ebd18c2050f5251720428 (patch) | |
tree | 3d5432eff034a3b9cfdc98b37e245abe5695342d /drivers/s390/cio/schid.h | |
parent | a62c80e559809e6c7851ec04d30575e85ad6f6ed (diff) | |
parent | 0aec63e67c69545ca757a73a66f5dcf05fa484bf (diff) | |
download | op-kernel-dev-123656d4cc8c946f578ebd18c2050f5251720428.zip op-kernel-dev-123656d4cc8c946f578ebd18c2050f5251720428.tar.gz |
Merge with Linus' kernel.
Diffstat (limited to 'drivers/s390/cio/schid.h')
-rw-r--r-- | drivers/s390/cio/schid.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/s390/cio/schid.h b/drivers/s390/cio/schid.h new file mode 100644 index 0000000..54328fe --- /dev/null +++ b/drivers/s390/cio/schid.h @@ -0,0 +1,26 @@ +#ifndef S390_SCHID_H +#define S390_SCHID_H + +struct subchannel_id { + __u32 reserved:13; + __u32 ssid:2; + __u32 one:1; + __u32 sch_no:16; +} __attribute__ ((packed,aligned(4))); + + +/* Helper function for sane state of pre-allocated subchannel_id. */ +static inline void +init_subchannel_id(struct subchannel_id *schid) +{ + memset(schid, 0, sizeof(struct subchannel_id)); + schid->one = 1; +} + +static inline int +schid_equal(struct subchannel_id *schid1, struct subchannel_id *schid2) +{ + return !memcmp(schid1, schid2, sizeof(struct subchannel_id)); +} + +#endif /* S390_SCHID_H */ |