diff options
| author | Shaun Tancheff <shaun@tancheff.com> | 2016-08-21 23:23:18 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-08-25 11:26:48 -0400 |
| commit | 9379e6b8e0f995365dc6158a1463c8dab4f2c8da (patch) | |
| tree | 22d3a77eaa583229d0f7cfba7d9dec04aa64839c /include/linux | |
| parent | cd27396e6103a43c3df76f70db1feafa16206471 (diff) | |
libata: Safely overwrite attached page in WRITE SAME xlat
Safely overwriting the attached page to ATA format from the SCSI formatted
variant.
Signed-off-by: Shaun Tancheff <shaun.tancheff@seagate.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ata.h | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h index adbc812c009b..45a1d71c55f1 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -1071,32 +1071,6 @@ static inline void ata_id_to_hd_driveid(u16 *id) #endif } -/* - * Write LBA Range Entries to the buffer that will cover the extent from - * sector to sector + count. This is used for TRIM and for ADD LBA(S) - * TO NV CACHE PINNED SET. - */ -static inline unsigned ata_set_lba_range_entries(void *_buffer, - unsigned num, u64 sector, unsigned long count) -{ - __le64 *buffer = _buffer; - unsigned i = 0, used_bytes; - - while (i < num) { - u64 entry = sector | - ((u64)(count > 0xffff ? 0xffff : count) << 48); - buffer[i++] = __cpu_to_le64(entry); - if (count <= 0xffff) - break; - count -= 0xffff; - sector += 0xffff; - } - - used_bytes = ALIGN(i * 8, 512); - memset(buffer + i, 0, used_bytes - i * 8); - return used_bytes; -} - static inline bool ata_ok(u8 status) { return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR)) |