diff options
| author | David Gibson | 2015-02-03 16:36:21 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt | 2015-03-23 14:29:40 +1100 |
| commit | f5718726714cd6114876c4e3ca9b6992ab81176c (patch) | |
| tree | c8cfe34ac28b22e89e8f5aac01c615ac61fbb221 /drivers/ata | |
| parent | 9eccca0843205f87c00404b663188b88eb248051 (diff) | |
powerpc: Move Power Macintosh drivers to generic byteswappers
ppc has special instruction forms to efficiently load and store values
in non-native endianness. These can be accessed via the arch-specific
{ld,st}_le{16,32}() inlines in arch/powerpc/include/asm/swab.h.
However, gcc is perfectly capable of generating the byte-reversing
load/store instructions when using the normal, generic cpu_to_le*() and
le*_to_cpu() functions eaning the arch-specific functions don't have much
point.
Worse the "le" in the names of the arch specific functions is now
misleading, because they always generate byte-reversing forms, but some
ppc machines can now run a little-endian kernel.
To start getting rid of the arch-specific forms, this patch removes them
from all the old Power Macintosh drivers, replacing them with the
generic byteswappers.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/pata_macio.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c index a02f76fdcfcd..b0028588ff1c 100644 --- a/drivers/ata/pata_macio.c +++ b/drivers/ata/pata_macio.c @@ -540,9 +540,9 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc) BUG_ON (pi++ >= MAX_DCMDS); len = (sg_len < MAX_DBDMA_SEG) ? sg_len : MAX_DBDMA_SEG; - st_le16(&table->command, write ? OUTPUT_MORE: INPUT_MORE); - st_le16(&table->req_count, len); - st_le32(&table->phy_addr, addr); + table->command = cpu_to_le16(write ? OUTPUT_MORE: INPUT_MORE); + table->req_count = cpu_to_le16(len); + table->phy_addr = cpu_to_le32(addr); table->cmd_dep = 0; table->xfer_status = 0; table->res_count = 0; @@ -557,12 +557,12 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc) /* Convert the last command to an input/output */ table--; - st_le16(&table->command, write ? OUTPUT_LAST: INPUT_LAST); + table->command = cpu_to_le16(write ? OUTPUT_LAST: INPUT_LAST); table++; /* Add the stop command to the end of the list */ memset(table, 0, sizeof(struct dbdma_cmd)); - st_le16(&table->command, DBDMA_STOP); + table->command = cpu_to_le16(DBDMA_STOP); dev_dbgdma(priv->dev, "%s: %d DMA list entries\n", __func__, pi); } |