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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-06 21:59:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-06 21:59:59 +0100 |
| commit | ccf18968b1bbc2fb117190a1984ac2a826dac228 (patch) | |
| tree | 7bc8fbf5722aecf1e84fa50c31c657864cba1daa /drivers/s390/cio/schid.h | |
| parent | [PATCH] i2c: i2c-mv64xxx fix transaction abortion (diff) | |
| parent | Merge branch 'post-2.6.15' of git://brick.kernel.dk/data/git/linux-2.6-block (diff) | |
| download | linux-ccf18968b1bbc2fb117190a1984ac2a826dac228.tar.xz linux-ccf18968b1bbc2fb117190a1984ac2a826dac228.zip | |
Merge ../torvalds-2.6/
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 000000000000..54328fec5ade --- /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 */ |