diff options
Diffstat (limited to 'include/linux/ata.h')
| -rw-r--r-- | include/linux/ata.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h index 94f77cce27fa..a8155ca4947f 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -302,4 +302,16 @@ static inline int ata_ok(u8 status) == ATA_DRDY); } +static inline int lba_28_ok(u64 block, u32 n_block) +{ + /* check the ending block number */ + return ((block + n_block - 1) < ((u64)1 << 28)) && (n_block <= 256); +} + +static inline int lba_48_ok(u64 block, u32 n_block) +{ + /* check the ending block number */ + return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536); +} + #endif /* __LINUX_ATA_H__ */ |