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| author | Damien Le Moal <damien.lemoal@opensource.wdc.com> | 2022-01-04 11:54:18 +0300 |
|---|---|---|
| committer | Damien Le Moal <damien.lemoal@opensource.wdc.com> | 2022-01-14 09:17:16 +0300 |
| commit | 0561e514c944da874ccdfbe2922f71b4c333c7e1 (patch) | |
| tree | 1ed1469ec940ca4f96ea9a18e3e6904060f067bb /drivers/ata/ahci_ceva.c | |
| parent | 2bce69072a0db6c3444650023c6f35bfd7a23d29 (diff) | |
| download | linux-0561e514c944da874ccdfbe2922f71b4c333c7e1.tar.xz | |
ata: fix read_id() ata port operation interface
Drivers that need to tweak a device IDENTIFY data implement the
read_id() port operation. The IDENTIFY data buffer is passed as an
argument to the read_id() operation for drivers to use. However, when
this operation is called, the IDENTIFY data is not yet converted to CPU
endian and contains le16 words.
Change the interface of the read_id operation to pass a __le16 * pointer
to the IDENTIFY data buffer to clarify the buffer endianness. Fix the
pata_netcell, pata_it821x, ahci_xgene, ahci_ceva and ahci_brcm drivers
implementation of this operation and modify the code to corretly deal
with identify data words manipulation to avoid sparse warnings such as:
drivers/ata/ahci_xgene.c:262:33: warning: invalid assignment: &=
drivers/ata/ahci_xgene.c:262:33: left side has type unsigned short
drivers/ata/ahci_xgene.c:262:33: right side has type restricted __le16
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Diffstat (limited to 'drivers/ata/ahci_ceva.c')
| -rw-r--r-- | drivers/ata/ahci_ceva.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/ata/ahci_ceva.c b/drivers/ata/ahci_ceva.c index e9c7c07fd84c..acf59f51b356 100644 --- a/drivers/ata/ahci_ceva.c +++ b/drivers/ata/ahci_ceva.c @@ -92,9 +92,8 @@ struct ceva_ahci_priv { }; static unsigned int ceva_ahci_read_id(struct ata_device *dev, - struct ata_taskfile *tf, u16 *id) + struct ata_taskfile *tf, __le16 *id) { - __le16 *__id = (__le16 *)id; u32 err_mask; err_mask = ata_do_dev_read_id(dev, tf, id); @@ -104,7 +103,7 @@ static unsigned int ceva_ahci_read_id(struct ata_device *dev, * Since CEVA controller does not support device sleep feature, we * need to clear DEVSLP (bit 8) in word78 of the IDENTIFY DEVICE data. */ - __id[ATA_ID_FEATURE_SUPP] &= cpu_to_le16(~(1 << 8)); + id[ATA_ID_FEATURE_SUPP] &= cpu_to_le16(~(1 << 8)); return 0; } |